WO2011114966A1 - Plate-like cured product - Google Patents

Plate-like cured product Download PDF

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Publication number
WO2011114966A1
WO2011114966A1 PCT/JP2011/055536 JP2011055536W WO2011114966A1 WO 2011114966 A1 WO2011114966 A1 WO 2011114966A1 JP 2011055536 W JP2011055536 W JP 2011055536W WO 2011114966 A1 WO2011114966 A1 WO 2011114966A1
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WO
WIPO (PCT)
Prior art keywords
plate
synthetic resin
cured body
resin
component
Prior art date
Application number
PCT/JP2011/055536
Other languages
French (fr)
Japanese (ja)
Inventor
洋史 黒田
晃嗣 筧田
Original Assignee
ベック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ベック株式会社 filed Critical ベック株式会社
Priority to KR1020127023374A priority Critical patent/KR101328558B1/en
Priority to CN201180011959.XA priority patent/CN102791649B/en
Priority to JP2012505632A priority patent/JP5244258B2/en
Priority to SG2012068433A priority patent/SG184084A1/en
Publication of WO2011114966A1 publication Critical patent/WO2011114966A1/en
Priority to HK13105770.0A priority patent/HK1178877A1/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/04Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B26/06Acrylates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/30Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds
    • C04B26/32Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds containing silicon
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02Granular materials, e.g. microballoons
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • C04B26/02Macromolecular compounds
    • C04B26/04Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/28Fire resistance, i.e. materials resistant to accidental fires or high temperatures

Definitions

  • the present invention relates to a novel plate-like cured body that can be used for building materials and the like.
  • Patent Document 1 a reinforcing material is laminated with a binder such as an acrylic resin emulsion and a spray material in which natural aggregate or artificial aggregate is blended, and a transparent sheet is formed on the surface via an adhesive.
  • a binder such as an acrylic resin emulsion and a spray material in which natural aggregate or artificial aggregate is blended
  • Patent Document 2 describes a building material having fireproof performance containing a hygroscopic material and a hydraulic substance.
  • the decorative material as described in Patent Document 1 contains a large amount of organic resin components such as a synthetic resin, a synthetic fiber fabric, an adhesive, and a transparent sheet. Moreover, since a transparent sheet is provided on the surface, the air permeability may be inferior. On the other hand, when a hydraulic substance is employed as a binder as in Patent Document 2, excellent fireproof performance can be exhibited, but design properties may be inferior.
  • the present invention has been made in view of these points, and an object of the present invention is to obtain a plate-like cured body having excellent design properties and excellent performances such as fire resistance and breathability.
  • the present inventor has identified a dispersion peak of loss tangent tan ⁇ measured using a dynamic viscoelasticity measuring device with synthetic resin and powder as constituent components.
  • the present inventors completed the present invention by conceiving a plate-like cured body having a range.
  • the plate-shaped cured body of the present invention has the following characteristics. 1.
  • a plate-like cured body containing a synthetic resin and powder wherein the plate-like cured body contains 200 to 4000 parts by weight of powder and granules with respect to 100 parts by weight of the synthetic resin as a solid content weight ratio.
  • the plate-like cured product has a dispersion peak of loss tangent tan ⁇ measured using a dynamic viscoelasticity measuring device at least from ⁇ 20 ° C. to 80 ° C. (T 1 ) and from ⁇ 150 ° C. to ⁇ 100 ° C. (T 2 ).
  • the above synthetic resin has a loss tangent tan ⁇ dispersion peak measured using a dynamic viscoelasticity measuring device at a temperature of at least ⁇ 20 ° C. to 80 ° C. (T 1 ) and ⁇ 150 ° C. to ⁇ 100 ° C. (T 2 ). 1. It has what is in the range. 2.
  • the synthetic resin contains an acrylic resin and a silicone resin in a solid content weight ratio of 95: 5 to 30:70. ⁇ 2.
  • the plate-shaped hardening body in any one of. 4).
  • the synthetic resin is a graft polymer of acrylic resin and silicone resin. ⁇ 3.
  • the plate-shaped hardening body in any one of.
  • the granular material includes colored aggregates and hygroscopic powder. ⁇ 4. The plate-shaped hardening body in any one of. 6). The powdery particle further contains a photocatalytic metal oxide. ⁇ 5. The plate-shaped hardening body in any one of. 7). 1. The above-mentioned granular material further contains a chemical substance adsorbent. ⁇ 6. The plate-shaped hardening body in any one of. 8.1. ⁇ 7. A plate-like cured body, wherein a moisture-permeable overcoat layer is laminated on the cured body according to any one of the above. 9.
  • a synthetic resin and a method for producing a plate-like cured product containing a powder wherein the synthetic resin has a dispersion peak of loss tangent tan ⁇ measured using a dynamic viscoelasticity measuring device at least from ⁇ 20 ° C. to 80 ° C. (T 1 ) and ⁇ 150 ° C. to ⁇ 100 ° C. (T 2 ), each having a solid content weight ratio of 200 to 4000 parts by weight with respect to 100 parts by weight of the synthetic resin.
  • mixing a first step of forming a second step the manufacturing method of the plate-like cured product which comprises a curing at a temperature greater than the dispersion peak temperature (T 1) of the synthetic resin.
  • the present invention relates to a synthetic resin and a plate-shaped cured body comprising 200 to 4000 parts by weight of a powder and 100 parts by weight of a synthetic resin as a constituent component of the powder and a solid content by weight ratio,
  • the plate-like cured product has excellent dispersion peaks of loss tangent tan ⁇ measured using a dynamic viscoelasticity measuring device at least in the respective temperature ranges of ⁇ 20 ° C. to 80 ° C. and ⁇ 150 ° C. to ⁇ 100 ° C. Designability, fireproofing, air permeability, etc. can be exhibited.
  • the plate-like cured product of the present invention comprises (A) a synthetic resin and (B) a granular material in a specific ratio, and is also referred to as a dynamic mechanical spectrometer (hereinafter referred to as “DMS”). ) Of the loss tangent tan ⁇ (tan ⁇ curve) measured using) (hereinafter also referred to as “dispersion peak”) of at least ⁇ 20 ° C. to 80 ° C. (T 1 ) and ⁇ 150 ° C. to ⁇ 100 ° C. (T 2 ). It has in each temperature range.
  • DMS dynamic mechanical spectrometer
  • the DMS measurement is performed using a plate-like cured body having a length of 40 mm, a width of 10 mm, and a thickness of 2 mm as a sample, and using a dynamic viscoelasticity measuring apparatus (DMS6100 manufactured by Seiko Instruments Inc.). Measurement temperature range: ⁇ 150 ° C. It is performed under the conditions of ⁇ 80 ° C., heating rate: 4 ° C./min, and measurement frequency: 1 Hz.
  • DMS6100 dynamic viscoelasticity measuring apparatus
  • component (A) Synthetic Resin
  • the synthetic resin of the present invention (hereinafter also referred to as “component (A)”) is not particularly limited.
  • acrylic resin, silicone resin, acrylic silicone resin, fluororesin, vinyl acetate resin, acrylic Vinyl acetate resin, vinyl chloride resin, urethane resin, acrylic / urethane resin, epoxy resin, alkyd resin, polyvinyl alcohol resin, polyester resin, ethylene resin, polyvinyl alcohol, cellulose and its water-dispersed type, water-soluble type, NAD type, solvent-soluble type, solventless type and the like can be mentioned, and one-component type, two-component type and the like are not particularly limited and can be used.
  • the dispersion peak of loss tangent tan ⁇ measured using DMS as component (A) is at least ⁇ 20 ° C. to 80 ° C. (T 1 ) and ⁇ 150 ° C. to ⁇ 100 ° C. (T 2 ). It is preferable to use what has. By including such component (A), excellent air permeability can be exhibited. Also, unless impair the effects of the present invention may have other dispersion peak in the temperature range other than the T 1 and the T 2.
  • Such a component (A) is not particularly limited.
  • DMS measurement of the above synthetic resin is a dynamic viscoelasticity measuring device (manufactured by Seiko Instruments Inc.) using a sample of (A) component formed into a dry film thickness of 0.1 mm (length 40 mm ⁇ width 10 mm).
  • DMS6100 is used under the conditions of a measurement temperature range: ⁇ 150 ° C. to 80 ° C., a heating rate: 4 ° C./min, and a measurement frequency: 1 Hz.
  • an acrylic resin having a dispersion peak in the above temperature range T 1 (a1) (hereinafter, also referred to as “component (a1)”.
  • component (a1) an acrylic resin having a dispersion peak in the above temperature range T 1 (a1)
  • component (a2) an acrylic resin having a dispersion peak in the above temperature range T 2
  • component (a2) an acrylic resin having a dispersion peak in the above temperature range T 1 (a1)
  • component (a2) a dispersion peak in the above temperature range T 2
  • the solid content weight ratio of the acrylic resin and the silicone resin in the component (A) is usually 95: 5 to 30:70, preferably 90:10 to 40:60, and more preferably 85:15 to 60:40.
  • the acrylic resin (a1) is a polymer mainly composed of (meth) acrylic acid ester, and is obtained by copolymerizing other monomers as required.
  • (meth) acrylic acid alkyl esters include methyl (meth) acrylate, ethyl (meth) acrylate, isopropyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, and t-butyl (meth) acrylate.
  • N-amyl (meth) acrylate N-amyl (meth) acrylate, isoamyl (meth) acrylate, n-hexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, octyl (meth) acrylate, decyl (meth) acrylate, dodecyl (meth) acrylate, octadecyl (Meth) acrylate, cyclohexyl (meth) acrylate, phenyl (meth) acrylate, benzyl (meth) acrylate and the like.
  • the amount of such (meth) acrylic acid alkyl ester is usually 30% by weight or more, preferably 40 to 99.9% by weight, more preferably 50 to 99.%, based on all monomers constituting component (A). 5% by weight.
  • the (meth) acrylic acid ester a (meth) acrylic acid ester having an alkyl group having 6 or more carbon atoms is preferably included as an essential component.
  • 2-ethylhexyl acrylate is particularly preferable.
  • the (meth) acrylic acid ester having 6 or more carbon atoms in the alkyl group is 10% by weight or more, preferably 15% by weight or more and 50% by weight, based on all monomers constituting the component (A). It is preferable to include the following. In this case, fire resistance of the obtained plate-like cured body can be enhanced.
  • Examples of other monomers include carboxyl group-containing monomers, amino group-containing monomers, pyridine monomers, hydroxyl group-containing monomers, nitrile group-containing monomers, amide group-containing monomers, epoxy group-containing monomers, carbonyl group-containing monomers, and alkoxysilyl group-containing monomers. And aromatic monomers.
  • the amount of these monomers to be used is usually 0.1 to 60% by weight, preferably 0.5 to 50% by weight, based on all monomers constituting the component (A).
  • a carboxyl group-containing monomer when a carboxyl group-containing monomer is copolymerized to obtain a carboxyl group-containing acrylic resin, various physical properties of the plate-like cured body can be improved by separately adding a compound capable of reacting with the carboxyl group.
  • the carboxyl group-containing monomer include acrylic acid, methacrylic acid, crotonic acid, maleic acid or a monoalkyl ester thereof, itaconic acid or a monoalkyl ester thereof, fumaric acid or a monoalkyl ester thereof.
  • at least one selected from acrylic acid and methacrylic acid is particularly preferable.
  • the amount of the carboxyl group-containing monomer is usually 0.1 to 40% by weight, preferably 0.5 to 20% by weight, based on all monomers constituting the component (A).
  • Examples of the compound capable of reacting with a carboxyl group include compounds having one or more functional groups selected from a carbodiimide group, an epoxy group, an aziridine group, an oxazoline group, and the like.
  • the silicone resin (a2) is obtained by polymerizing a siloxane compound.
  • the siloxane compound include cyclic siloxane compounds such as hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, and decamethylcyclopentasiloxane.
  • a linear siloxane compound, a branched siloxane compound, an alkoxysilane compound, or the like can also be used.
  • the alkoxysilane compound a silane compound having one or more alkoxyl groups in the molecule can be used.
  • tetramethoxysilane, methyltrimethoxysilane, dimethyldimethoxysilane, vinylmethyldimethoxysilane, ⁇ - Silane coupling agents such as (meth) acryloyloxytrimethoxysilane and 3-mercaptopropyltrimethoxysilane can be used.
  • the average molecular weight of the silicone resin is usually 10,000 or more, preferably 50,000 or more.
  • a graft polymer of the acrylic resin (a1) and the silicone resin (a2) is preferable.
  • a graft polymer By being a graft polymer, it is possible to improve the fire resistance and flexibility by making use of the texture of the granular material described later.
  • advantageous effects can be obtained in each physical property such as water resistance, weather resistance, and contamination resistance.
  • the hygroscopic powder is included as the granular material, the performance can be sufficiently exhibited.
  • the component (a2) is moderately easy to move in a normal environment where a plate-like cured body is used, so that other physical properties can be improved while exhibiting excellent air permeability. it is conceivable that.
  • Such a graft polymer can be obtained, for example, by copolymerizing the siloxane compound, the (meth) acrylic acid ester, and a graft crossing agent.
  • the graft crossing agent include polyfunctional alkoxysilanes containing a vinyl polymerizable functional group and / or a mercapto group.
  • a synthetic resin emulsion water-dispersed resin
  • Breathability can be enhanced by using such a synthetic resin emulsion.
  • the component (A) for example, an acrylic resin emulsion having a dispersion peak in the above temperature range T 1, and a mixture of silicone resin emulsion having a dispersion peak in the above temperature range T 2 can be used.
  • an acrylic-silicone synthetic resin emulsion (A-1) (hereinafter also referred to as “component (A-1)”) in which the components (a1) and (a2) are mixed in the emulsion particles. it can.
  • the form of the component (a1) and the component (a2) in the component (A-1) is not particularly limited and may be a uniformly mixed form, but a form separated from each other by a sea-island structure or the like is preferable.
  • the component (A) in the present invention is preferably a synthetic resin emulsion (A-2) in which the graft polymer of the acrylic resin (a1) and the silicone resin (a2) is present in the emulsion particles.
  • the component (A-2) can be obtained, for example, by emulsion polymerization of the siloxane compound, the (meth) acrylic acid ester, and the graft crossing agent in the presence of an emulsifier.
  • the component (A) of the present invention preferably forms a film having a reflection region having a reflectance of 10% or more, preferably 15% or more at a wavelength of 300 to 500 nm.
  • the photocatalytic activity can be improved.
  • the action mechanism is not clear, but the light irradiated to the plate-shaped cured body of the present invention is diffused / reflected in the plate-shaped cured body and absorbed by the photocatalytic metal oxide described later dispersed in the plate-shaped cured body. This is thought to be easier.
  • the reflectance is obtained by using a sample obtained by forming the component (A) into a dry film thickness of 0.1 mm, a black plate is placed behind the sample, and a spectrophotometer (manufactured by Shimadzu Corporation, UV-3100). ). In addition, let the black board piled up behind the sample be a blank, and let it be the converted value. Specifically, it is obtained by subtracting the reflectance of the black plate from the reflectance of the sample at each wavelength.
  • (B) Granules In the present invention, (B) 200 to 4000 parts by weight, preferably 300 to 3500 parts by weight, more preferably 500 to 3000 parts by weight are included with respect to 100 parts by weight of component (A) described above. It is a waste. It is preferable that at least (b1) colored aggregates and (b2) moisture-absorbing / releasing powders are included as the above-mentioned granular material.
  • the colored aggregate (hereinafter also referred to as “component (b1)”) can give a fine unevenness to the surface of the plate-like cured body, and can express a three-dimensional design having a shading feeling. Further, unlike the case of using a coloring pigment having a small particle diameter, etc., it is possible to change the color tone, texture, etc. by mixing colored particles, and the small point of the component (b1) present on the plate-like cured body surface is It is visually recognized as a colorful pattern and has excellent decorativeness.
  • the component (b1) suitable for the present invention is not particularly limited, and any of natural products and artificial products can be used.
  • pulverized materials such as stone, feldspar, silica stone, and silica sand, ceramic pulverized materials, ceramic pulverized materials, glass beads, glass pulverized materials, resin beads, resin pulverized materials, and metal particles. Colored ones can also be used.
  • the average particle size of the component is desirably 0.01 to 5 mm. When it is such a range, while being able to express the outstanding design, a plate-shaped hardening body can be manufactured stably.
  • the average particle size of the component (b1) is a value obtained by performing sieving using a metal mesh sieve specified in JIS Z8801-1: 2000 and calculating the average value of the weight distribution.
  • the blending amount of the component (b1) is preferably 200 to 3400 parts by weight, more preferably 300 to 2000 parts by weight, and further preferably 500 to 1500 parts by weight with respect to 100 parts by weight of the solid content of the component (A).
  • Hygroscopic powder (hereinafter referred to as “component (b2)”) includes, for example, boehmite, silica gel, zeolite, sodium sulfate, alumina, allophane, diatomaceous earth, siliceous shale, sepiolite, attapulgite, montmorillonite, zonorite, Imogolite, Otani stone powder, activated clay, charcoal, bamboo charcoal, activated carbon, wood powder, shell powder, porous synthetic resin particles, etc. can be used.
  • component (b2) includes, for example, boehmite, silica gel, zeolite, sodium sulfate, alumina, allophane, diatomaceous earth, siliceous shale, sepiolite, attapulgite, montmorillonite, zonorite, Imogolite, Otani stone powder, activated clay, charcoal, bamboo charcoal, activated carbon, wood powder, shell powder, porous synthetic resin particles,
  • the average particle diameter of the hygroscopic powder is usually 0.001 to 1 mm, preferably 0.01 to 0.5 mm, more preferably 0.01 to 0.1 mm, and still more preferably 0.01 to 0.09 mm. It is.
  • the average particle diameter of (b2) component is a value of the 50% particle diameter measured by the centrifugal sedimentation type particle size distribution measuring apparatus.
  • Such a component (b2) has a moisture absorption rate of 10% or higher, preferably 20% or higher, at a temperature of 20 ° C. and a relative humidity of 90%.
  • a moisture absorption rate of 10% or higher, preferably 20% or higher, at a temperature of 20 ° C. and a relative humidity of 90%.
  • the component ratio of component (b2) is preferably 1 to 600 parts by weight, more preferably 5 to 500 parts by weight, and still more preferably 10 to 300 parts by weight with respect to 100 parts by weight (solid content) of component (A). It is preferable. In the case of such a range, sufficient humidity control can be exhibited, and excellent strength and flexibility can be provided.
  • (B3) a photocatalytic metal oxide (hereinafter referred to as “(b3) component”) is included as the (B) granular material.
  • a photocatalytic substance is an effective component for preventing decomposition and re-release of harmful gases. Furthermore, it also has the capability of decomposing contaminants (such as tobacco dust) adhering to the plate-like cured body.
  • the component (b3) in the reflective region (hereinafter also simply referred to as “reflective region”) in which the reflectance of the coating formed by the component (A) out of the wavelength of 300 to 500 nm is 10% or more. What shows a photocatalytic action is preferable.
  • the photocatalytic activity can be efficiently exhibited.
  • the photocatalytic action of the present invention means that when the catalyst is exposed to light (ultraviolet rays and / or visible light), the catalyst absorbs and excites light, and the resulting excited electrons and holes are oxidized and reduced. Acid radicals and active oxygen are generated, and the hydroxyl radicals and active oxygen have an action of decomposing organic substances.
  • the component (b3) examples include metal oxides such as titanium oxide, tin oxide, zinc oxide, ferric oxide, dibismuth trioxide, and tungsten trioxide, or composite oxides thereof. 1 type (s) or 2 or more types can be used.
  • the average particle size of the component (b3) is 0.3 ⁇ m or less, preferably 0.1 ⁇ m or more and 0.25 ⁇ m or less. When the photocatalytic metal oxide in the above range is used, it has an excellent photocatalytic action and can further utilize the texture of the aggregate of the plate-like cured body.
  • the average particle size referred to here is obtained from measurement by centrifugal sedimentation or the like.
  • titanium oxide may be either anatase-type titanium oxide or rutile-type titanium oxide. In the present invention, it is particularly preferable to use anatase-type titanium oxide.
  • titanium oxide is used as the component (b3), the photocatalytic action is excellent, the total calorific value at the time of fire can be suppressed, and fire resistance can be improved. The action mechanism is presumed to be because titanium oxide can block radiant heat and suppress the temperature rise of the plate-like cured body. Furthermore, fireproofness improves more by using anatase type titanium oxide.
  • the mechanism of action is not clear, but it is considered that the catalytic action of anatase-type titanium oxide by heating is involved. Further, the amount of exhaust gas can be reduced by the decomposition action of anatase type titanium oxide. Furthermore, the anatase-type titanium oxide has a lower effect of concealing the coating film than the rutile-type titanium oxide, so that the texture of the aggregate can be further utilized.
  • the amount of component (b3) is preferably 0.05 to 30 parts by weight, more preferably 0.1 to 25 parts by weight, still more preferably 0.5 to 100 parts by weight based on 100 parts by weight of the solid content of component (A). 20 parts by weight. In such a range, excellent photocatalytic action and fire resistance can be exhibited.
  • (B4) a chemical substance adsorbent is included as (B) the granular material.
  • a chemical substance adsorbent is included as (B) the granular material.
  • harmful gases for example, formaldehyde, ammonia, hydrogen sulfide, methyl mercaptan, trimethylamine, etc.
  • the component (b4) include amine compounds, urea compounds, amide compounds, imide compounds, hydrazide compounds, azole compounds, azine compounds, layered phosphate compounds, and aluminosilicates.
  • At least one selected from a layered phosphate compound and an aluminosilicate is preferable, and an aluminosilicate is particularly preferable.
  • the average particle size of such a chemical substance adsorbent is usually about 0.5 to 100 ⁇ m (preferably 1 to 50 ⁇ m).
  • Examples of the layered phosphate compound include layered zirconium phosphate, layered zinc phosphate, layered titanium phosphate, layered aluminum phosphate, layered magnesium phosphate, layered cerium phosphate, and the like.
  • An amine compound is included in these layered phosphate compounds. Intercalated ones are preferred.
  • Examples of the amine compound include methylamine, ethylamine, aniline, ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, propylenediamine, dipropylenetriamine, and tripropylenetetramine.
  • aluminosilicate examples include a composite oxide of at least one metal selected from zinc, copper, silver, cobalt, nickel, iron, titanium, barium, tin, and zirconium, and aluminum and silicon.
  • the amount of component (b4) is preferably 0.1 to 100 parts by weight, more preferably 0.5 to 50 parts by weight, still more preferably 1 to 25 parts by weight based on 100 parts by weight of the solid content of component (A). Part. In such a range, it is effective for adsorption of toxic gas.
  • the component (b3) and the component (b4) are particularly preferable to use.
  • practical performance can be obtained in the adsorption / decomposition / re-release prevention of harmful gas, and a harmful gas filter effect can be imparted to the plate-like cured body.
  • aggregate (C) (hereinafter referred to as “component (C)”) having an average particle diameter of more than 5 mm can be mixed or dispersed.
  • component (C) suitable for the present invention includes, for example, pulverized materials such as natural stone, silica stone, and silica sand, ceramic pulverized materials, ceramic pulverized materials, mica, shells, glass pulverized materials, glass beads, resin pulverized materials, and resin beads. , Rubbers, plastics, plant fibers, plants such as plant pieces, metals such as alumina flakes, and those whose surfaces are colored and coated.
  • additives include thickeners, film-forming aids, leveling agents, wetting agents, plasticizers, antifreezing agents, pH adjusting agents, antiseptics, antifungal agents, algaeproofing agents, antibacterial agents, Examples include deodorants, dispersants, antifoaming agents, adsorbents, flame retardants, color pigments, extender pigments, fibers, water repellents, crosslinking agents, ultraviolet absorbers, antioxidants, and catalysts.
  • the plate-shaped cured product of the present invention can be laminated on a substrate.
  • the base material include gypsum board, plywood, concrete, mortar, tile, fiber-mixed cement board, cement calcium silicate board, slag cement pearlite board, resin board or sheet (film), woven fabric, nonwoven fabric, paper, etc.
  • the thickness is 0.05 to 1.5 mm (preferably 0.1 to 1 mm, more preferably 0.25 to 0.5 mm)
  • the basis weight is 5 to 300 g / m 2 , (preferably 10 to 10 mm).
  • a woven or non-woven fabric containing 200 g / m 2 , more preferably 20 to 100 g / m 2 ) inorganic fibers is preferred.
  • Examples thereof include woven fabrics and nonwoven fabrics made of inorganic fibers such as mineral fibers and glass fibers.
  • inorganic fibers such as mineral fibers and glass fibers.
  • those having flexibility are preferred, and nonwoven fabrics having a structure in which fibers are superposed on a three-dimensional structure are preferred.
  • a base material in which a glass mesh, a glass cloth, or the like is laminated on a woven or non-woven fabric can be used.
  • the contact interface with the plate-like cured body is increased, and thus the adhesiveness is excellent.
  • a base material contains inorganic fiber, a plate-shaped hardening body can be supported stably. For this reason, the prevention of curling and warping of the plate-like cured body at the time of fire and the prevention of falling off are improved, and the fire resistance and flame resistance are excellent.
  • by laminating the base material and the specific plate-like cured body it is possible to easily cut into an arbitrary shape at the time of construction, and it is possible to appropriately perform the edge processing of the cut surface.
  • the manufacturing method of the plate-shaped hardening body of this invention is not specifically limited, For example, it can manufacture with the manufacturing method including the following processes. According to this method, the target plate-like cured product can be stably produced, and it is also preferable from the standpoint of effect expression.
  • a cured product composition (hereinafter also referred to as “cured product composition”) in which 200 to 4000 parts by weight of (B) granular material is mixed with 100 parts by weight of (A) synthetic resin in a weight ratio of solids.
  • T 3 the temperature higher than the dispersion peak temperature of the component (A).
  • the component (A) has at least ⁇ 20 ° C. to 80 ° C. (T 1 ) and ⁇ 150 ° C. to ⁇ 100 ° C. (T 2 ) dispersion peaks of loss tangent tan ⁇ measured using a dynamic viscoelasticity measuring device. ) In each temperature range.)
  • the effect of the plate-like cured product of the present invention it is likely to be expressed.
  • This mechanism of action is not clear, but when cured at the above temperature (T 3 ), the resin component having a dispersion peak in the temperature range (T 2 ) is easily oriented on the surface of the plate-shaped cured body. As a result, it is considered that an effect excellent in fire resistance, contamination resistance and the like can be exhibited.
  • the method for molding the plate-shaped cured body is not particularly limited, and for example, it may be molded using a mold having releasability. Moreover, what is necessary is just to laminate
  • the viscosity of the composition for cured bodies is set to about 5 to 100 Pa ⁇ s, the intended laminate can be easily obtained.
  • the viscosity said here is a viscosity in 20 rpm by a BH type viscometer, and measurement temperature is 23 degreeC.
  • a mold made of silicon resin, urethane resin, metal, or the like, or a mold provided with release paper can be used.
  • a method of laminating the base material for example, (I) A method of pouring a composition for a cured body into a mold, drying and demolding to form a plate-shaped cured body, and then laminating a substrate with an adhesive or the like, (II) A method of pouring a composition for a cured body into a mold, laminating a substrate before the composition for a plate-shaped cured body is dried, drying, demolding, and the like.
  • stacking method in said (1) is employable.
  • the thickness of the plate-like cured body is preferably 1.0 mm or more and 5.0 mm or less. In such a case, it is possible to form a concavo-convex pattern that is excellent in fire resistance and deeply carved, so that it is possible to obtain excellent design with shadow and profound feeling.
  • the thickness of a plate-shaped hardening body excludes a base-material part.
  • a reinforcing material (ceramic paper, synthetic paper, glass cloth, mesh, etc.) is laminated, a concavo-convex pattern is formed for the purpose of improving decorativeness, etc. Can also be sprayed.
  • the decorative material include colored aggregates, mica, shells, plants, alumina flakes, glass flakes, metals, rubbers, plastics, and the like.
  • an overcoat layer can also be laminated for the purpose of enhancing the surface protection of the plate-like cured product within a range that does not significantly impair the effects of the present invention.
  • the top coat layer only needs to have moisture permeability and transparency (clear layer).
  • the design property (hue) of the plate-like cured body can be utilized as it is, and further, air permeability, fire resistance, etc.
  • the overcoat layer may be a color clear layer to which various pigments are added within a range having transparency.
  • Such an overcoat layer can be formed by applying a known water-based or solvent-type paint.
  • an emulsion paint containing colloidal silica is preferred. In this case, surface strength, contamination resistance, etc. can be improved. Furthermore, the inclusion of colloidal silica is effective in improving fire resistance as compared with a known top coating.
  • the emulsion containing colloidal silica examples include a mixture of a synthetic resin emulsion and colloidal silica, a colloidal silica composite emulsion in which a synthetic resin emulsion and colloidal silica are chemically bonded, and the like in the present invention. It is preferable to use it. It does not specifically limit as said synthetic resin emulsion, If it does not impair the effect of this invention, it can use suitably.
  • the synthetic resin component and the colloidal silica in the emulsion containing colloidal silica are preferably 95: 5 to 40:60 in terms of solid content weight ratio.
  • the particle size of colloidal silica is preferably 10 nm to 100 nm. In such a range, it is possible to improve the surface protection and fire resistance of the plate-shaped cured body without inhibiting the effects of the present invention.
  • These coatings may be performed by a known coating method, and a coating instrument such as a spray, a coater, a roller, or a brush can be used.
  • a coating instrument such as a spray, a coater, a roller, or a brush can be used.
  • the present plate-like cured body can be mainly applied as an interior building material of a building. That is, interior finishing can be performed by pasting on each part of the building interior surface. Specifically, it can be applied to walls, partitions, doors, ceilings, etc. in houses, condominiums, schools, hospitals, stores, offices, factories, warehouses, restaurants, etc.
  • Examples of the base constituting such a part include gypsum board, plywood, concrete, mortar, tile, fiber-mixed cement board, cement calcium silicate board, and slag cement pearlite board. These bases may be those having an existing coating film on the surface thereof, or those already having wallpaper attached thereto.
  • the plate-shaped cured body of the present invention is applied to such a base so that the plate-shaped cured body faces the indoor side.
  • the plate-shaped cured body of the present invention when the plate-shaped cured body of the present invention is constructed, it may be adhered to the substrate using an adhesive, a pressure-sensitive adhesive, a pressure-sensitive adhesive tape, a nail, a heel or the like. In addition, it can also be fixed using pins, fasteners, rails or the like. Especially, it is preferable to stick the plate-shaped hardening body of this invention to a base
  • the adhesive is not particularly limited, and a known one may be used.
  • the synthetic resin used for the adhesive is not particularly limited, but ethylene resin, vinyl acetate resin, polyester resin, alkyd resin, vinyl chloride resin, epoxy resin, acrylic resin, urethane resin, phenol resin, melamine resin, amino resin , Polycarbonate resin, acrylic silicon resin, acrylic vinyl acetate resin, acrylic styrene resin, acrylic urethane resin, silicone resin, water-soluble type such as fluorine resin, water dispersion type, etc. Can be used.
  • powder components, hollow particles, porous particles, fibers, etc. may be added to give various performances such as workability, finish, adhesive strength, fire resistance, etc., and coloring materials and extender pigments may be added as necessary.
  • Commonly used additives such as dispersants, viscosity modifiers, antifoaming agents, antifungal agents, preservatives, and algaeproofing agents can be added as appropriate.
  • the adhesive does not protrude.
  • the interval at which the plate-like cured body is attached is not particularly limited, but may be about 1 mm to 30 mm. If it is such a range, interior finishing which makes use of a joint pattern can be performed.
  • An adhesive agent can be exposed between plate-shaped hardening bodies, and a joint part can be formed easily. Moreover, you may smooth the adhesive of a joint part with a spatula etc. as needed.
  • the ambient temperature at which the adhesive is cured can be set as appropriate, but is usually room temperature.
  • Synthetic resin 1 to synthetic resin 3 As structural components, t-butyl methacrylate, n-butyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate, ⁇ -methacryloyloxypropyltrimethoxysilane, hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane Graft copolymerization was carried out to produce an acrylic-silicone graft copolymer type synthetic resin emulsion. These were designated as synthetic resins 1 to 3. Each synthetic resin has the following characteristics.
  • Synthetic resin 4 to synthetic resin 6 The following acrylic resin emulsion and silicone resin emulsion were mixed to obtain synthetic resins 4 to 6.
  • Acrylic resin emulsion component: t-butyl methacrylate, n-butyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate
  • Solid content 50% by weight
  • Silicone resin emulsion emulsified dispersion of dimethylsiloxane compound
  • solid content 50% by weight Synthetic resin 4; acrylic resin emulsion: silicone resin emulsion (solid content weight ratio) 80: 20, DMS dispersion peak temperature: 55 ° C., ⁇ 130 ° C.
  • Synthetic resin 6; acrylic resin emulsion: silicone resin emulsion (solid content weight ratio) 90: 10, DMS dispersion peak temperature: 55 ° C., ⁇ 130 ° C.
  • Synthetic resin 7 Acrylic resin emulsion (component: t-butyl methacrylate, n-butyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate), solid content 50% by weight, DMS dispersion peak temperature: 55 ° C.
  • the above-mentioned synthetic resins 1 to 7 were applied on a release paper and dried to prepare a film having a thickness of 0.1 mm, and the reflectance of the film was measured.
  • the reflectance of the film was measured using a spectrophotometer (manufactured by Shimadzu Corporation, UV-3100). The results are shown in Table 1.
  • the synthetic resins 1, 2, 4, 5, and 6 have a region in which the ultraviolet reflectance is 10% or more in the wavelength region of 300 nm to 500 nm.
  • the synthetic resin 3 has a region where the ultraviolet reflectance is 10% or less in a region having a wavelength of 400 nm or more, and the ultraviolet reflectance is 10% or more in a region having a wavelength of less than 400 nm.
  • the synthetic resin 7 had an ultraviolet reflectance of less than 10% in the wavelength region.
  • Table 1 shows the ultraviolet reflectance at wavelengths of 380 nm, 400 nm, and 500 nm as typical values.
  • cured materials 1 to 14 were produced by mixing and stirring the respective raw materials by a conventional method. In addition, the following were used as a raw material.
  • component / aggregate 1 colored silica sand (light yellow, average particle diameter of 80 to 120 ⁇ m) -Aggregate 2: Heavy calcium carbonate (average particle size 50-150 ⁇ m)
  • component / Hygroscopic powder Silica gel (average particle size 20 ⁇ m, bulk specific gravity 0.30 g / ml, moisture absorption 80% (under 20 ° C., 90% RH atmosphere))
  • Component / photocatalytic oxide 1 UV-responsive anatase-type titanium oxide (excitation wavelength: 200 to 380 nm, average particle size 0.2 ⁇ m)
  • Photocatalytic oxide 2 Visible light-responsive anatase-type titanium oxide (excitation wavelength: 400 to 650 nm, average particle diameter of 15 nm)
  • Component / Chemical substance adsorbent Zinc aluminosilicate (average particle size 3 ⁇ m) (Additive) ⁇ Thickener (hydroxy
  • Each of the above plate-like cured bodies was cut into 40 mm ⁇ 10 mm (thickness: 2 mm) and used as a test specimen for DMS measurement, using a DMS6100 manufactured by Seiko Instruments Inc., measuring temperature range: ⁇ 150 ° C. to 80 ° C. Measurement was performed under conditions of a temperature rate of 4 ° C./min and a measurement frequency of 1 Hz. Table 4 shows the measured dispersion peak temperature of loss tangent tan ⁇ .
  • the total calorific value of the test specimen after 20 minutes was measured with a cone calorimeter defined by ISO 5660.
  • a cone calorimeter defined by ISO 5660.
  • the heating intensity was 50 kW / m 2 .
  • the evaluation criteria for the exothermic test are as follows.
  • ⁇ Hygroscopic evaluation 1> A 100 mm ⁇ 100 mm ⁇ 12.5 mm gypsum board was used as a base material for the test, an adhesive was applied to the base material, and each of the laminates 1A to 14A was attached, at 23 ° C. and 50 ⁇ 10% RH. The specimens cured for 24 hours were used as test specimens. Each specimen was left in an atmosphere of 23 ° C. and 90% RH, and the moisture absorption after 24 hours was evaluated (g / m 2 ).
  • the evaluation criteria for hygroscopicity are as follows.
  • the adhesive is made of synthetic resin 1, titanium oxide, heavy calcium carbonate, dispersant, thickening. An agent, an antifoaming agent, and water produced by uniformly stirring and mixing were used.
  • ⁇ Contamination evaluation 1> The surface of each of the laminates 1B to 16B was brushed with coffee, and after 5 minutes, wiped with a wet cloth and visually evaluated for contamination.
  • the evaluation criteria were a four-step evaluation (excellent: A>B>C> D: poor), where “A” is the one from which the dirt has been removed and “D” is the one from which the dirt remains significantly.
  • ⁇ Hygroscopic evaluation 2> A test specimen was prepared in the same manner as in the hygroscopic evaluation 1 except that each laminate after the evaluation of the pollution evaluation 1 was used. Each specimen was left in an atmosphere of 23 ° C. and 90% RH, and the moisture absorption after 24 hours was evaluated (g / m 2 ). The evaluation criteria for hygroscopicity are the same as for hygroscopic evaluation 1.
  • ⁇ Photocatalytic test> Each laminate was used as a test body, and a solution obtained by adding 2% sodium hydroxide to an ethanol solution of 1.0 wt% phenolphthalein was applied to the surface of the test body and then exposed to sunlight (wavelength region: 305 to 4045 nm). Exposure was made for a total of 36 hours, and the color difference before and after that was measured. The decomposition of phenolphthalein by the action of the photocatalyst was evaluated based on the color difference ⁇ E. The color difference was measured using a color difference meter (CM-3700d, manufactured by Minolta Co., Ltd.). The evaluation criteria for the photocatalytic test are as follows. A: 6 ⁇ ⁇ E B: 5 ⁇ E ⁇ 6 C: ⁇ E ⁇ 5

Abstract

Provided is a novel plate-like cured product which has an excellent design and which exerts excellent fire protection properties and ventilation properties. Specifically, disclosed is a plate-like cured product which contains a synthetic resin and powder particles at a specific weight ratio, wherein the plate-like cured product has a dispersion peak temperature of loss tangent (tanδ) measured using a dynamic viscoelastic measurement device between at least the following two temperature ranges: -20°C to 80°C (T1) and -150°C to -100°C (T2).

Description

板状硬化体Plate-shaped cured body
 本発明は、建材等に使用できる新規な板状硬化体に関するものである。 The present invention relates to a novel plate-like cured body that can be used for building materials and the like.
 建築物の内装用建材として、天然石、自然石をイメージした比較的厚みがあり、様々な凹凸パターンを有するもの、重厚感のあるもの、など意匠性に優れるものが多く採用されつつある。 As building materials for interiors of buildings, natural stones, which are relatively thick in the image of natural stones, and those having excellent design properties such as those having various uneven patterns and those having a profound feeling are being adopted.
 また、近年、安全で快適な居住空間への関心が高まり、内装用の建材は、意匠性に加え、防火性能、汚染防止性能、室内の結露防止やカビ発生防止、あるいは抗菌性等、様々な機能性を有すること、さらには、可とう性、軽量化等により施工性に優れることが要求されている。これに伴い、多くの製品の開発が行われている。 In recent years, interest in safe and comfortable living spaces has increased, and building materials for interior use have various design features such as fire resistance, anti-contamination performance, indoor dew condensation prevention, mold generation prevention, and antibacterial properties. It is required to have functionality and to be excellent in workability due to flexibility and weight reduction. Along with this, many products have been developed.
 例えば、特許文献1には、補強層にアクリル樹脂エマルション等の結合材と天然骨材や人工骨材等が配合された吹き付け材を積層し、さらに接着材を介して表面に透明シートが成形された装飾材が記載されている。また、特許文献2には、吸放湿性材料と水硬性物質を含有した防火性能を有する建材が記載されている。 For example, in Patent Document 1, a reinforcing material is laminated with a binder such as an acrylic resin emulsion and a spray material in which natural aggregate or artificial aggregate is blended, and a transparent sheet is formed on the surface via an adhesive. The decorative material is described. Patent Document 2 describes a building material having fireproof performance containing a hygroscopic material and a hydraulic substance.
特開平4-347251号公報JP-A-4-347251 特開2003-96930号公報JP 2003-96930 A
 しかしながら、上記特許文献1のような装飾材は、合成樹脂、合成繊維製織物、接着材、透明シート等、有機樹脂成分を多く含んでおり、防火性能が不十分となるおそれがあった。また、表面に透明シートを設けるため、通気性に劣る場合があった。一方、上記特許文献2のように、水硬性物質を結合材として採用した場合、優れた防火性能を発揮することはできるが、意匠性に劣る場合があった。 However, the decorative material as described in Patent Document 1 contains a large amount of organic resin components such as a synthetic resin, a synthetic fiber fabric, an adhesive, and a transparent sheet. Moreover, since a transparent sheet is provided on the surface, the air permeability may be inferior. On the other hand, when a hydraulic substance is employed as a binder as in Patent Document 2, excellent fireproof performance can be exhibited, but design properties may be inferior.
 本発明は、このような点に鑑みなされたものであり、意匠性に優れるとともに、防火性能、通気性等に優れた性能を有する板状硬化体を得ることを目的とするものである。 The present invention has been made in view of these points, and an object of the present invention is to obtain a plate-like cured body having excellent design properties and excellent performances such as fire resistance and breathability.
 本発明者は、上記目的を達成するため鋭意検討を行なった結果、合成樹脂、及び粉粒体を構成成分とし、動的粘弾性測定装置を用いて測定した損失正接tanδの分散ピークを特定の範囲に有する板状硬化体に想到し、本発明を完成させた。 As a result of intensive studies to achieve the above object, the present inventor has identified a dispersion peak of loss tangent tan δ measured using a dynamic viscoelasticity measuring device with synthetic resin and powder as constituent components. The present inventors completed the present invention by conceiving a plate-like cured body having a range.
 すなわち、本発明の板状硬化体は、下記の特徴を有するものである。
 1.合成樹脂、及び粉粒体を含む板状硬化体であって、上記板状硬化体は、固形分重量比率で合成樹脂100重量部に対して、粉粒体200~4000重量部を含み、上記板状硬化体は、動的粘弾性測定装置を用いて測定した損失正接tanδの分散ピークを少なくとも-20℃~80℃(T)及び-150℃~-100℃(T)のそれぞれの温度範囲に有するものであることを特徴とする板状硬化体。
 2.上記合成樹脂は、動的粘弾性測定装置を用いて測定した損失正接tanδの分散ピークを少なくとも-20℃~80℃(T)及び-150℃~-100℃(T)のそれぞれの温度範囲に有するものであることを特徴とする1.に記載の板状硬化体。
 3.上記合成樹脂は、アクリル樹脂、及びシリコーン樹脂を固形分重量比率95:5~30:70で含むものであることを特徴とする1.~2.のいずれかに記載の板状硬化体。
 4.上記合成樹脂は、アクリル樹脂、及びシリコーン樹脂のグラフト重合体であることを特徴とする1.~3.のいずれかに記載の板状硬化体。
That is, the plate-shaped cured body of the present invention has the following characteristics.
1. A plate-like cured body containing a synthetic resin and powder, wherein the plate-like cured body contains 200 to 4000 parts by weight of powder and granules with respect to 100 parts by weight of the synthetic resin as a solid content weight ratio. The plate-like cured product has a dispersion peak of loss tangent tan δ measured using a dynamic viscoelasticity measuring device at least from −20 ° C. to 80 ° C. (T 1 ) and from −150 ° C. to −100 ° C. (T 2 ). A plate-like cured body having a temperature range.
2. The above synthetic resin has a loss tangent tan δ dispersion peak measured using a dynamic viscoelasticity measuring device at a temperature of at least −20 ° C. to 80 ° C. (T 1 ) and −150 ° C. to −100 ° C. (T 2 ). 1. It has what is in the range. 2. The plate-like cured product according to 1.
3. The synthetic resin contains an acrylic resin and a silicone resin in a solid content weight ratio of 95: 5 to 30:70. ~ 2. The plate-shaped hardening body in any one of.
4). The synthetic resin is a graft polymer of acrylic resin and silicone resin. ~ 3. The plate-shaped hardening body in any one of.
 5.上記粉粒体は、有色骨材、及び吸放湿性粉体を含むことを特徴とする1.~4.のいずれかに記載の板状硬化体。
 6.上記粉粒体として、さらに光触媒金属酸化物を含むことを特徴とする1.~5.のいずれかに記載の板状硬化体。
 7.上記粉粒体として、さらに化学物質吸着剤を含むことを特徴とする1.~6.のいずれかに記載の板状硬化体。
 8.1.~7.のいずれかに記載の硬化体の上に、透湿性の上塗層が積層されたことを特徴とする板状硬化体。
 9.合成樹脂、及び粉粒体を含む板状硬化体の製造方法であって、上記合成樹脂は、動的粘弾性測定装置を用いて測定した損失正接tanδの分散ピークを少なくとも-20℃~80℃(T)及び-150℃~-100℃(T)のそれぞれの温度範囲に有するものであり、固形分重量比率で合成樹脂100重量部に対して、粉粒体200~4000重量部を混合し、成形する第1工程、上記合成樹脂の分散ピーク温度(T)よりも高い温度で硬化させる第2工程、を含むことを特徴とする板状硬化体の製造方法。
5. The granular material includes colored aggregates and hygroscopic powder. ~ 4. The plate-shaped hardening body in any one of.
6). The powdery particle further contains a photocatalytic metal oxide. ~ 5. The plate-shaped hardening body in any one of.
7). 1. The above-mentioned granular material further contains a chemical substance adsorbent. ~ 6. The plate-shaped hardening body in any one of.
8.1. ~ 7. A plate-like cured body, wherein a moisture-permeable overcoat layer is laminated on the cured body according to any one of the above.
9. A synthetic resin and a method for producing a plate-like cured product containing a powder, wherein the synthetic resin has a dispersion peak of loss tangent tan δ measured using a dynamic viscoelasticity measuring device at least from −20 ° C. to 80 ° C. (T 1 ) and −150 ° C. to −100 ° C. (T 2 ), each having a solid content weight ratio of 200 to 4000 parts by weight with respect to 100 parts by weight of the synthetic resin. mixing a first step of forming a second step, the manufacturing method of the plate-like cured product which comprises a curing at a temperature greater than the dispersion peak temperature (T 1) of the synthetic resin.
 本発明は、合成樹脂、及び粉粒体を構成成分し、固形分重量比率で合成樹脂100重量部に対して、粉粒体を200~4000重量部含む板状硬化体に関するものであり、該板状硬化体が動的粘弾性測定装置を用いて測定した損失正接tanδの分散ピークが少なくとも-20℃~80℃及び-150℃~-100℃のそれぞれの温度範囲にあることにより、優れた意匠性、防火性、通気性等を発揮することができるものである。 The present invention relates to a synthetic resin and a plate-shaped cured body comprising 200 to 4000 parts by weight of a powder and 100 parts by weight of a synthetic resin as a constituent component of the powder and a solid content by weight ratio, The plate-like cured product has excellent dispersion peaks of loss tangent tan δ measured using a dynamic viscoelasticity measuring device at least in the respective temperature ranges of −20 ° C. to 80 ° C. and −150 ° C. to −100 ° C. Designability, fireproofing, air permeability, etc. can be exhibited.
 以下、本発明を実施するための最良の形態について説明する。  Hereinafter, the best mode for carrying out the present invention will be described. *
 本発明の板状硬化体は、(A)合成樹脂、及び(B)粉粒体を特定比率で含むものであり、動的粘弾性測定装置(Dynamic Mechanical Spectrometer)(以下、「DMS」ともいう)を用いて測定した損失正接tanδ(tanδ曲線)の分散ピーク(以下「分散ピーク」ともいう)を少なくとも-20℃~80℃(T)及び-150℃~-100℃(T)のそれぞれの温度範囲に有するものである。この作用機構は明確ではないが、分散ピークを上記Tに加え、上記Tの温度範囲に有することにより、板状硬化体が使用される通常の環境下において優れた通気性を発揮することができる。また、分散ピークを上記Tに加え、上記Tの温度範囲に有することにより、多量の粉粒体を含む場合であっても良好な成形性を有し、その結果、意匠性、防火性に優れた板状硬化体を得ることができる。 The plate-like cured product of the present invention comprises (A) a synthetic resin and (B) a granular material in a specific ratio, and is also referred to as a dynamic mechanical spectrometer (hereinafter referred to as “DMS”). ) Of the loss tangent tan δ (tan δ curve) measured using) (hereinafter also referred to as “dispersion peak”) of at least −20 ° C. to 80 ° C. (T 1 ) and −150 ° C. to −100 ° C. (T 2 ). It has in each temperature range. This mechanism of action is not clear, added dispersion peak above T 1, by having a temperature range of above T 2, exhibits excellent breathability under normal circumstances the plate-like cured product is used that Can do. In addition, by adding a dispersion peak to T 1 and having a temperature range of T 2 , even when a large amount of powder is included, it has good moldability, and as a result, design and fire resistance. It is possible to obtain a plate-like cured body excellent in the above.
 なお、上記DMS測定は、縦40mm×横10mm×厚み2mmの板状硬化体を試料とし、動的粘弾性測定装置(セイコーインスツル株式会社製DMS6100)を用いて、測定温度範囲:-150℃~80℃、昇温速度:4℃/min、測定周波数:1Hzの条件下で行う。 The DMS measurement is performed using a plate-like cured body having a length of 40 mm, a width of 10 mm, and a thickness of 2 mm as a sample, and using a dynamic viscoelasticity measuring apparatus (DMS6100 manufactured by Seiko Instruments Inc.). Measurement temperature range: −150 ° C. It is performed under the conditions of ˜80 ° C., heating rate: 4 ° C./min, and measurement frequency: 1 Hz.
(A)合成樹脂
 本発明の合成樹脂(以下、「(A)成分」ともいう)は、特に限定されないが、例えば、アクリル樹脂、シリコーン樹脂、アクリルシリコーン樹脂、フッ素樹脂、酢酸ビニル樹脂、アクリル・酢酸ビニル樹脂、塩化ビニル樹脂、ウレタン樹脂、アクリル・ウレタン樹脂、エポキシ樹脂、アルキッド樹脂、ポリビニルアルコール樹脂、ポリエステル樹脂、エチレン樹脂、ポリビニルアルコール、セルロース及びその誘導体等の水分散型、水可溶型、NAD型、溶剤可溶型、無溶剤型等が挙げられ、1液タイプ、2液タイプ等特に限定せず、用いることができる。
(A) Synthetic Resin The synthetic resin of the present invention (hereinafter also referred to as “component (A)”) is not particularly limited. For example, acrylic resin, silicone resin, acrylic silicone resin, fluororesin, vinyl acetate resin, acrylic Vinyl acetate resin, vinyl chloride resin, urethane resin, acrylic / urethane resin, epoxy resin, alkyd resin, polyvinyl alcohol resin, polyester resin, ethylene resin, polyvinyl alcohol, cellulose and its water-dispersed type, water-soluble type, NAD type, solvent-soluble type, solventless type and the like can be mentioned, and one-component type, two-component type and the like are not particularly limited and can be used.
 本発明では(A)成分として、DMSを用いて測定した損失正接tanδの分散ピークを少なくとも-20℃~80℃(T)及び -150℃~-100℃(T)のそれぞれの温度範囲に有するものを使用することが好ましい。このような(A)成分を含むことにより、優れた通気性を発揮させることができる。また、本発明の効果を害さない限り、上記T及び上記T以外の温度範囲にその他の分散ピークを有してもよい。 In the present invention, the dispersion peak of loss tangent tan δ measured using DMS as component (A) is at least −20 ° C. to 80 ° C. (T 1 ) and −150 ° C. to −100 ° C. (T 2 ). It is preferable to use what has. By including such component (A), excellent air permeability can be exhibited. Also, unless impair the effects of the present invention may have other dispersion peak in the temperature range other than the T 1 and the T 2.
 このような(A)成分としては、特に限定されないが、例えば、
・上記Tにtanδ曲線の分散ピークを有する合成樹脂と、上記Tにtanδ曲線の分散ピークを有する合成樹脂を混合した混合樹脂
・上記Tにtanδ曲線の分散ピークを有する合成樹脂と、上記Tにtanδ曲線の分散ピークを有する合成樹脂が化学的に結合した重合体
等が挙げられる。
Such a component (A) is not particularly limited.
A synthetic resin having a tan δ curve dispersion peak at T 1 and a synthetic resin having a tan δ curve dispersion peak at T 2 ; a synthetic resin having a tan δ curve dispersion peak at T 1 ; Examples thereof include a polymer in which a synthetic resin having a tan δ curve dispersion peak at T 2 is chemically bonded.
 なお、上記合成樹脂のDMS測定は、(A)成分を乾燥膜厚0.1mmにフィルム化したもの(縦40mm×横10mm)を試料とし、動的粘弾性測定装置(セイコーインスツル株式会社製DMS6100)を用いて、測定温度範囲:-150℃~80℃、昇温速度:4℃/min、測定周波数:1Hzの条件下で行う。 In addition, DMS measurement of the above synthetic resin is a dynamic viscoelasticity measuring device (manufactured by Seiko Instruments Inc.) using a sample of (A) component formed into a dry film thickness of 0.1 mm (length 40 mm × width 10 mm). DMS6100) is used under the conditions of a measurement temperature range: −150 ° C. to 80 ° C., a heating rate: 4 ° C./min, and a measurement frequency: 1 Hz.
 具体的に、本発明では(A)成分として、上記Tの温度範囲に分散ピークを有するアクリル樹脂(a1)(以下、「(a1)成分」ともいう。)、及び上記Tの温度範囲に分散ピークを有するシリコーン樹脂(a2)(以下、「(a2)成分」ともいう。)を含むものを使用することが好ましい。(A)成分におけるアクリル樹脂とシリコーン樹脂の固形分重量比率は、通常95:5~30:70、好ましくは90:10~40:60、さらに好ましくは85:15~60:40である。このような比率で両成分を含むことにより、通気性、及び防火性を高めることができる。 Specifically, in the present invention as the component (A), an acrylic resin having a dispersion peak in the above temperature range T 1 (a1) (hereinafter, also referred to as "component (a1)".), And the above-mentioned temperature range T 2 It is preferable to use those containing a silicone resin (a2) having a dispersion peak in (hereinafter also referred to as “component (a2)”). The solid content weight ratio of the acrylic resin and the silicone resin in the component (A) is usually 95: 5 to 30:70, preferably 90:10 to 40:60, and more preferably 85:15 to 60:40. By including both components in such a ratio, breathability and fireproofing can be improved.
 上記アクリル樹脂(a1)は、(メタ)アクリル酸エステルを主成分とする重合体であり、必要に応じその他のモノマーを共重合したものである。(メタ)アクリル酸アルキルエステルとしては、例えばメチル(メタ)アクリレート、エチル(メタ)アクリレート、イソプロピル(メタ)アクリレート、n-ブチル(メタ)アクリレート、イソブチル(メタ)アクリレート、t-ブチル(メタ)アクリレート、n-アミル(メタ)アクリレート、イソアミル(メタ)アクリレート、n-ヘキシル(メタ)アクリレート、2-エチルヘキシル(メタ)アクリレート、オクチル(メタ)アクリレート、デシル(メタ)アクリレート、ドデシル(メタ)アクリレート、オクタデシル(メタ)アクリレート、シクロヘキシル(メタ)アクリレート、フェニル(メタ)アクリレート、ベンジル(メタ)アクリレート等が挙げられる。このような(メタ)アクリル酸アルキルエステルの使用量は、(A)成分を構成する全モノマーに対し、通常30重量%以上、好ましくは40~99.9重量%、より好ましくは50~99.5重量%である。 The acrylic resin (a1) is a polymer mainly composed of (meth) acrylic acid ester, and is obtained by copolymerizing other monomers as required. Examples of (meth) acrylic acid alkyl esters include methyl (meth) acrylate, ethyl (meth) acrylate, isopropyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, and t-butyl (meth) acrylate. , N-amyl (meth) acrylate, isoamyl (meth) acrylate, n-hexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, octyl (meth) acrylate, decyl (meth) acrylate, dodecyl (meth) acrylate, octadecyl (Meth) acrylate, cyclohexyl (meth) acrylate, phenyl (meth) acrylate, benzyl (meth) acrylate and the like. The amount of such (meth) acrylic acid alkyl ester is usually 30% by weight or more, preferably 40 to 99.9% by weight, more preferably 50 to 99.%, based on all monomers constituting component (A). 5% by weight.
 本発明では、(メタ)アクリル酸エステルとして、アルキル基の炭素数が6以上の(メタ)アクリル酸エステルを必須成分として含むことが好ましい。その中でも、特に、2-エチルへキシルアクリレートが好適である。本発明では、このようなアルキル基の炭素数が6以上の(メタ)アクリル酸エステルを、(A)成分を構成する全モノマーに対し、10重量%以上、好ましくは15重量%以上50重量%以下含むことが好ましい。この場合、得られた板状硬化体の防火性を高めることができる。 In the present invention, as the (meth) acrylic acid ester, a (meth) acrylic acid ester having an alkyl group having 6 or more carbon atoms is preferably included as an essential component. Among these, 2-ethylhexyl acrylate is particularly preferable. In the present invention, the (meth) acrylic acid ester having 6 or more carbon atoms in the alkyl group is 10% by weight or more, preferably 15% by weight or more and 50% by weight, based on all monomers constituting the component (A). It is preferable to include the following. In this case, fire resistance of the obtained plate-like cured body can be enhanced.
 その他のモノマーとしては、例えばカルボキシル基含有モノマー、アミノ基含有モノマー、ピリジン系モノマー、水酸基含有モノマー、ニトリル基含有モノマー、アミド基含有モノマー、エポキシ基含有モノマー、カルボニル基含有モノマー、アルコキシシリル基含有モノマー、芳香族モノマー等が挙げられる。これらモノマーの使用量は、(A)成分を構成する全モノマーに対し、通常0.1~60重量%、好ましくは0.5~50重量%である。 Examples of other monomers include carboxyl group-containing monomers, amino group-containing monomers, pyridine monomers, hydroxyl group-containing monomers, nitrile group-containing monomers, amide group-containing monomers, epoxy group-containing monomers, carbonyl group-containing monomers, and alkoxysilyl group-containing monomers. And aromatic monomers. The amount of these monomers to be used is usually 0.1 to 60% by weight, preferably 0.5 to 50% by weight, based on all monomers constituting the component (A).
 このうち、カルボキシル基含有モノマーを共重合して、カルボキシル基含有アクリル樹脂とした場合には、カルボキシル基と反応可能な化合物を別途添加することにより、板状硬化体の諸物性向上を図ることができる。カルボキシル基含有モノマーとしては、例えばアクリル酸、メタクリル酸、クロトン酸、マレイン酸またはそのモノアルキルエステル、イタコン酸またはそのモノアルキルエステル、フマル酸またはそのモノアルキルエステル等が挙げられる。このうち、特にアクリル酸、メタクリル酸から選ばれる1種以上が好適である。カルボキシル基含有モノマーの使用量は、(A)成分を構成する全モノマーに対し、通常0.1~40重量%、好ましくは0.5~20重量%である。 Among these, when a carboxyl group-containing monomer is copolymerized to obtain a carboxyl group-containing acrylic resin, various physical properties of the plate-like cured body can be improved by separately adding a compound capable of reacting with the carboxyl group. it can. Examples of the carboxyl group-containing monomer include acrylic acid, methacrylic acid, crotonic acid, maleic acid or a monoalkyl ester thereof, itaconic acid or a monoalkyl ester thereof, fumaric acid or a monoalkyl ester thereof. Among these, at least one selected from acrylic acid and methacrylic acid is particularly preferable. The amount of the carboxyl group-containing monomer is usually 0.1 to 40% by weight, preferably 0.5 to 20% by weight, based on all monomers constituting the component (A).
 また、カルボキシル基と反応可能な化合物としては、例えば、カルボジイミド基、エポキシ基、アジリジン基、オキサゾリン基等から選ばれる1種以上の官能基を有する化合物が挙げられる。 Examples of the compound capable of reacting with a carboxyl group include compounds having one or more functional groups selected from a carbodiimide group, an epoxy group, an aziridine group, an oxazoline group, and the like.
 上記シリコーン樹脂(a2)は、シロキサン化合物を重合して得られるものである。シロキサン化合物としては、例えばヘキサメチルシクロトリシロキサン、オクタメチルシクロテトラシロキサン、デカメチルシクロペンタシロキサン等の環状シロキサン化合物等が挙げられる。このような環状シロキサン化合物を重合する際には、直鎖状シロキサン化合物、分岐状シロキサン化合物、アルコキシシラン化合物等を用いることもできる。このうち、アルコキシシラン化合物としては、分子中に1個以上のアルコキシル基を有するシラン化合物が使用でき、例えばテトラメトキシシラン、メチルトリメトキシシラン、ジメチルジメトキシシラン等の他、ビニルメチルジメトキシシラン、γ-(メタ)アクリロイルオキシトリメトキシシラン、3-メルカプトプロピルトリメトキシシラン等のシランカップリング剤等が使用できる。シリコーン樹脂の平均分子量は、通常10000以上、好ましくは50000以上である。 The silicone resin (a2) is obtained by polymerizing a siloxane compound. Examples of the siloxane compound include cyclic siloxane compounds such as hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, and decamethylcyclopentasiloxane. When polymerizing such a cyclic siloxane compound, a linear siloxane compound, a branched siloxane compound, an alkoxysilane compound, or the like can also be used. Among these, as the alkoxysilane compound, a silane compound having one or more alkoxyl groups in the molecule can be used. For example, tetramethoxysilane, methyltrimethoxysilane, dimethyldimethoxysilane, vinylmethyldimethoxysilane, γ- Silane coupling agents such as (meth) acryloyloxytrimethoxysilane and 3-mercaptopropyltrimethoxysilane can be used. The average molecular weight of the silicone resin is usually 10,000 or more, preferably 50,000 or more.
 (A)成分としては、上記アクリル樹脂(a1)と上記シリコーン樹脂(a2)のグラフト重合体が好ましい。グラフト重合体であることにより、後述の粉粒体の質感を生かし、防火性、可とう性を高めることができる。また、耐水性、耐候性、耐汚染性等の各物性においても有利な効果を得ることができる。さらに、粉粒体として吸放湿性粉体を含む際、その性能を十分に発揮させることができる。この作用機構は明確ではないが、板状硬化体が使用される通常の環境下において、(a2)成分が適度に動き易いため、優れた通気性を発揮しつつ、他の諸物性も向上できると考えられる。このようなグラフト重合体は、例えば、上記シロキサン化合物、上記(メタ)アクリル酸エステル、及びグラフト交叉剤を共重合して得ることができる。グラフト交叉剤としては、例えば、ビニル重合性官能基及び/又はメルカプト基を含有する多官能アルコキシシランが挙げられる。 As the component (A), a graft polymer of the acrylic resin (a1) and the silicone resin (a2) is preferable. By being a graft polymer, it is possible to improve the fire resistance and flexibility by making use of the texture of the granular material described later. In addition, advantageous effects can be obtained in each physical property such as water resistance, weather resistance, and contamination resistance. Furthermore, when the hygroscopic powder is included as the granular material, the performance can be sufficiently exhibited. Although the mechanism of this action is not clear, the component (a2) is moderately easy to move in a normal environment where a plate-like cured body is used, so that other physical properties can be improved while exhibiting excellent air permeability. it is conceivable that. Such a graft polymer can be obtained, for example, by copolymerizing the siloxane compound, the (meth) acrylic acid ester, and a graft crossing agent. Examples of the graft crossing agent include polyfunctional alkoxysilanes containing a vinyl polymerizable functional group and / or a mercapto group.
 本発明の(A)成分としては、合成樹脂エマルション(水分散型樹脂)を使用することができる。このような合成樹脂エマルションを使用することにより、通気性を高めることができる。さらに、後述の粉粒体の質感を活かしつつ、防火性、可とう性に優れた板状硬化体を得ることが可能となる。このような(A)成分としては、例えば、上記Tの温度範囲に分散ピークを有するアクリル樹脂エマルション、及び上記Tの温度範囲に分散ピークを有するシリコーン樹脂エマルションを混合したものが使用できる。 As the component (A) of the present invention, a synthetic resin emulsion (water-dispersed resin) can be used. Breathability can be enhanced by using such a synthetic resin emulsion. Furthermore, it is possible to obtain a plate-like cured body excellent in fire resistance and flexibility while taking advantage of the texture of the granular material described later. Examples of the component (A), for example, an acrylic resin emulsion having a dispersion peak in the above temperature range T 1, and a mixture of silicone resin emulsion having a dispersion peak in the above temperature range T 2 can be used.
 また、(a1)成分、及び(a2)成分がエマルション粒子内に混在するアクリル―シリコーン合成樹脂エマルション(A-1)(以下、「(A-1)成分」ともいう。)を使用することもできる。(A-1)成分における(a1)成分と(a2)成分の形態は特に限定されず、均一に混ざり合った形態であってもよいが、海島構造等により相互に分離した形態が好ましい。 It is also possible to use an acrylic-silicone synthetic resin emulsion (A-1) (hereinafter also referred to as “component (A-1)”) in which the components (a1) and (a2) are mixed in the emulsion particles. it can. The form of the component (a1) and the component (a2) in the component (A-1) is not particularly limited and may be a uniformly mixed form, but a form separated from each other by a sea-island structure or the like is preferable.
 さらに、本発明における(A)成分としては、上記アクリル樹脂(a1)とシリコーン樹脂(a2)のグラフト重合体がエマルション粒子内に存在する合成樹脂エマルション(A-2)が好適である。(A-2)成分は、例えば、上記シロキサン化合物、上記(メタ)アクリル酸エステル、及びグラフト交叉剤を乳化剤の存在下で乳化重合して得ることができる。 Furthermore, the component (A) in the present invention is preferably a synthetic resin emulsion (A-2) in which the graft polymer of the acrylic resin (a1) and the silicone resin (a2) is present in the emulsion particles. The component (A-2) can be obtained, for example, by emulsion polymerization of the siloxane compound, the (meth) acrylic acid ester, and the graft crossing agent in the presence of an emulsifier.
 さらに、本発明の(A)成分は、波長300~500nmにおいて反射率が10%以上、好ましくは15%以上となる反射領域を有する被膜を形成するものであることが好ましい。このような(A)成分を使用することにより、粉粒体として、光触媒金属酸化物を含む場合、その光触媒活性を高めることができる。その作用機構は明確ではないが、本発明の板状硬化体に照射された光が、板状硬化体内で拡散・反射し、板状硬化体内に分散された後述の光触媒金属酸化物に吸収されやすくなるためと考えられる。 Furthermore, the component (A) of the present invention preferably forms a film having a reflection region having a reflectance of 10% or more, preferably 15% or more at a wavelength of 300 to 500 nm. By using such (A) component, when a photocatalyst metal oxide is included as a granular material, the photocatalytic activity can be improved. The action mechanism is not clear, but the light irradiated to the plate-shaped cured body of the present invention is diffused / reflected in the plate-shaped cured body and absorbed by the photocatalytic metal oxide described later dispersed in the plate-shaped cured body. This is thought to be easier.
 なお、上記反射率は、(A)成分を乾燥膜厚0.1mmにフィルム化したものを試料とし、該試料の背後に黒色板を重ね、分光光度計(株式会社島津製作所製、UV-3100)を用いて測定した値である。なお、試料の背後に重ねた黒色板をブランクとし、換算した値とする。具体的には、各波長において、試料の反射率から黒色板の反射率を差し引くことにより求められる。 The reflectance is obtained by using a sample obtained by forming the component (A) into a dry film thickness of 0.1 mm, a black plate is placed behind the sample, and a spectrophotometer (manufactured by Shimadzu Corporation, UV-3100). ). In addition, let the black board piled up behind the sample be a blank, and let it be the converted value. Specifically, it is obtained by subtracting the reflectance of the black plate from the reflectance of the sample at each wavelength.
(B)粉粒体
 本発明では上述の(A)成分100重量部に対し、(B)粉粒体200~4000重量部、好ましく300~3500重量部、さらに好ましくは500~3000重量部を含むものである。上記粉粒体としては、少なくとも(b1)有色骨材、及び(b2)吸放湿性粉体を含むことが好ましい。
(B) Granules In the present invention, (B) 200 to 4000 parts by weight, preferably 300 to 3500 parts by weight, more preferably 500 to 3000 parts by weight are included with respect to 100 parts by weight of component (A) described above. It is a waste. It is preferable that at least (b1) colored aggregates and (b2) moisture-absorbing / releasing powders are included as the above-mentioned granular material.
 (b1)有色骨材(以下、「(b1)成分」ともいう)は、板状硬化体表面へ微細な凹凸を付与し、陰影感を有する立体的な意匠を表現することができる。また、粒子径の小さい着色顔料等を使用した場合と異なり、着色した粒子を混合して色調、質感等を変化させることができ、板状硬化体表面に存在する(b1)成分の小点が多彩模様として視認され、優れた装飾性を有する。本発明に好適な(b1)成分としては、特に限定されず、天然品、人工品のいずれも使用することができる。具体的には、例えば、重質炭酸カルシウム、寒水石、カオリン、クレー、陶土、チャイナクレー、タルク、水酸化アルミニウム、水酸化マグネシウム、バライト粉、大理石、御影石、蛇紋岩、花崗岩、蛍石、寒水石、長石、珪石、珪砂等の粉砕物、陶磁器粉砕物、セラミック粉砕物、ガラスビーズ、ガラス粉砕物、樹脂ビーズ、樹脂粉砕物、金属粒等が挙げられる。これらに着色を施したものも使用することができる。 (B1) The colored aggregate (hereinafter also referred to as “component (b1)”) can give a fine unevenness to the surface of the plate-like cured body, and can express a three-dimensional design having a shading feeling. Further, unlike the case of using a coloring pigment having a small particle diameter, etc., it is possible to change the color tone, texture, etc. by mixing colored particles, and the small point of the component (b1) present on the plate-like cured body surface is It is visually recognized as a colorful pattern and has excellent decorativeness. The component (b1) suitable for the present invention is not particularly limited, and any of natural products and artificial products can be used. Specifically, for example, heavy calcium carbonate, cold stone, kaolin, clay, porcelain clay, china clay, talc, aluminum hydroxide, magnesium hydroxide, barite powder, marble, granite, serpentine, granite, fluorite, cold water Examples thereof include pulverized materials such as stone, feldspar, silica stone, and silica sand, ceramic pulverized materials, ceramic pulverized materials, glass beads, glass pulverized materials, resin beads, resin pulverized materials, and metal particles. Colored ones can also be used.
 (b1)成分の平均粒子径は、0.01~5mmであることが望ましい。このような範囲である場合、優れた意匠を表現することができるとともに、板状硬化体を安定して製造することができる。なお(b1)成分の平均粒子径は、JIS Z8801-1:2000に規定される金属製網ふるいを用いてふるい分けを行い、その重量分布の平均値を算出することによって得られる値である。 (B1) The average particle size of the component is desirably 0.01 to 5 mm. When it is such a range, while being able to express the outstanding design, a plate-shaped hardening body can be manufactured stably. The average particle size of the component (b1) is a value obtained by performing sieving using a metal mesh sieve specified in JIS Z8801-1: 2000 and calculating the average value of the weight distribution.
 (b1)成分の配合量は、(A)成分の固形分100重量部に対し、好ましくは200~3400重量部、より好ましくは300~2000重量部、さらに好ましくは500~1500重量部である。上記範囲のように(A)成分に対して(b1)成分を多く含むことにより、骨材の質感を活かした優れた意匠性を得ることができ、さらに通気性を向上することができる。 The blending amount of the component (b1) is preferably 200 to 3400 parts by weight, more preferably 300 to 2000 parts by weight, and further preferably 500 to 1500 parts by weight with respect to 100 parts by weight of the solid content of the component (A). By including many (b1) components with respect to (A) component like the said range, the outstanding designability which utilized the texture of the aggregate can be obtained, and breathability can be improved further.
 (b2)吸放湿性粉体(以下「(b2)成分」という)としては、例えば、ベーマイト、シリカゲル、ゼオライト、硫酸ナトリウム、アルミナ、アロフェン、珪藻土、珪質頁岩、セピオライト、アタバルジャイト、モンモリロナイト、ゾノライト、イモゴライト、大谷石粉、活性白土、木炭、竹炭、活性炭、木粉、貝殻粉、多孔質合成樹脂粒等が使用できる。吸放湿性粉粒体の平均粒子径は、通常0.001~1mm、好ましくは0.01~0.5mm、より好ましくは0.01~0.1mm、さらに好ましくは0.01~0.09mmである。なお、(b2)成分の平均粒子径は、遠心沈降式粒度分布測定装置によって測定される50%粒子径の値である。 (B2) Hygroscopic powder (hereinafter referred to as “component (b2)”) includes, for example, boehmite, silica gel, zeolite, sodium sulfate, alumina, allophane, diatomaceous earth, siliceous shale, sepiolite, attapulgite, montmorillonite, zonorite, Imogolite, Otani stone powder, activated clay, charcoal, bamboo charcoal, activated carbon, wood powder, shell powder, porous synthetic resin particles, etc. can be used. The average particle diameter of the hygroscopic powder is usually 0.001 to 1 mm, preferably 0.01 to 0.5 mm, more preferably 0.01 to 0.1 mm, and still more preferably 0.01 to 0.09 mm. It is. In addition, the average particle diameter of (b2) component is a value of the 50% particle diameter measured by the centrifugal sedimentation type particle size distribution measuring apparatus.
 このような(b2)成分は、温度20℃・相対湿度90%における吸湿率が、通常10%以上、好ましくは20%以上の性能を有するものである。このような吸湿率を有することにより、湿度の調整による不快感抑制等の機能をより向上させることができ、より快適な居住空間を得ることができる。また、基材や基材裏面の結露やカビ発生等を防止することができる。 Such a component (b2) has a moisture absorption rate of 10% or higher, preferably 20% or higher, at a temperature of 20 ° C. and a relative humidity of 90%. By having such a moisture absorption rate, functions such as discomfort suppression by adjusting humidity can be further improved, and a more comfortable living space can be obtained. Moreover, the dew condensation on the base material or the back surface of the base material, generation of mold, and the like can be prevented.
 (b2)成分の構成比率は、(A)成分100重量部(固形分)に対し、好ましくは1~600重量部、より好ましくは5~500重量部、さらに好ましくは10~300重量部であることが好ましい。このような範囲の場合、十分な調湿性を発揮することができるとともに、優れた強度や可とう性を有することができる。 The component ratio of component (b2) is preferably 1 to 600 parts by weight, more preferably 5 to 500 parts by weight, and still more preferably 10 to 300 parts by weight with respect to 100 parts by weight (solid content) of component (A). It is preferable. In the case of such a range, sufficient humidity control can be exhibited, and excellent strength and flexibility can be provided.
 さらに本発明では、(B)粉粒体として、(b3)光触媒金属酸化物(以下「(b3)成分」という)を含むことが好ましい。光触媒物質は、有害ガスの分解、再放出防止に有効な成分である。さらに、板状硬化体に付着した汚染物質(タバコのヤニ等)を分解する性能も有する。さらに本発明では、(b3)成分として、波長300~500nmのうち(A)成分により形成された被膜の反射率が10%以上となる反射領域(以下、単に「反射領域」ともいう)において、光触媒作用を示すものが好ましい。このような(b3)成分を含むことにより、効率的に光触媒活性を発揮することができる。なお、本発明の光触媒作用とは、触媒に光(紫外線及び/または可視光)が当たることにより、触媒が光を吸収・励起し、これにより生じた励起電子と正孔の酸化及び還元により水酸ラジカルと活性酸素が発生し、この水酸ラジカルと活性酸素が有機物等を分解する作用である。 Furthermore, in the present invention, it is preferable that (B3) a photocatalytic metal oxide (hereinafter referred to as “(b3) component”) is included as the (B) granular material. A photocatalytic substance is an effective component for preventing decomposition and re-release of harmful gases. Furthermore, it also has the capability of decomposing contaminants (such as tobacco dust) adhering to the plate-like cured body. Further, in the present invention, as the component (b3), in the reflective region (hereinafter also simply referred to as “reflective region”) in which the reflectance of the coating formed by the component (A) out of the wavelength of 300 to 500 nm is 10% or more. What shows a photocatalytic action is preferable. By including such a component (b3), the photocatalytic activity can be efficiently exhibited. The photocatalytic action of the present invention means that when the catalyst is exposed to light (ultraviolet rays and / or visible light), the catalyst absorbs and excites light, and the resulting excited electrons and holes are oxidized and reduced. Acid radicals and active oxygen are generated, and the hydroxyl radicals and active oxygen have an action of decomposing organic substances.
 このような(b3)成分としては、酸化チタン、酸化スズ、酸化亜鉛、酸化第二鉄、三酸化二ビスマス、三酸化タングステン等の金属酸化物、またはその複合酸化物等が挙げられ、これらの1種もしくは2種以上を使用することができる。(b3)成分の平均粒子径は0.3μm以下、好ましくは0.1μm以上0.25μm以下である。上記範囲の光触媒金属酸化物を使用した場合、優れた光触媒作用を有し、さらに板状硬化体の骨材の質感を活かすことができる。なお、ここで言う平均粒子径とは、遠心沈降法等による測定から得られるものである。 Examples of the component (b3) include metal oxides such as titanium oxide, tin oxide, zinc oxide, ferric oxide, dibismuth trioxide, and tungsten trioxide, or composite oxides thereof. 1 type (s) or 2 or more types can be used. The average particle size of the component (b3) is 0.3 μm or less, preferably 0.1 μm or more and 0.25 μm or less. When the photocatalytic metal oxide in the above range is used, it has an excellent photocatalytic action and can further utilize the texture of the aggregate of the plate-like cured body. The average particle size referred to here is obtained from measurement by centrifugal sedimentation or the like.
 特に、本発明の(b3)成分としては、酸化チタンを使用することが好ましい。酸化チタンとしては、アナターゼ型酸化チタン、ルチル型酸化チタンのいずれでもよいが、本発明では特に、アナターゼ型酸化チタンを使用することが好ましい。(b3)成分として酸化チタンを使用した場合、光触媒作用に優れ、さらには、火災時の総発熱量を抑えることができ、防火性を高めることができる。その作用機構としては、酸化チタンは、輻射熱を遮断し板状硬化体の温度上昇を抑制することができるためと推察される。さらに、アナターゼ型酸化チタンを使用することで防火性がより向上する。その作用機構は明らかではないが、加熱によるアナターゼ型酸化チタンの触媒作用向上が関与しているものと考えられる。また、アナターゼ型酸化チタンの分解作用により排出ガスの量を低減することもできる。さらに、アナターゼ型酸化チタンはルチル型酸化チタンと比較した場合、塗膜の隠蔽効果が低いため、より骨材の質感を活かすことができる。 In particular, it is preferable to use titanium oxide as the component (b3) of the present invention. Titanium oxide may be either anatase-type titanium oxide or rutile-type titanium oxide. In the present invention, it is particularly preferable to use anatase-type titanium oxide. When titanium oxide is used as the component (b3), the photocatalytic action is excellent, the total calorific value at the time of fire can be suppressed, and fire resistance can be improved. The action mechanism is presumed to be because titanium oxide can block radiant heat and suppress the temperature rise of the plate-like cured body. Furthermore, fireproofness improves more by using anatase type titanium oxide. The mechanism of action is not clear, but it is considered that the catalytic action of anatase-type titanium oxide by heating is involved. Further, the amount of exhaust gas can be reduced by the decomposition action of anatase type titanium oxide. Furthermore, the anatase-type titanium oxide has a lower effect of concealing the coating film than the rutile-type titanium oxide, so that the texture of the aggregate can be further utilized.
 (b3)成分の配合量は、(A)成分の固形分100重量部に対し、好ましくは0.05~30重量部、より好ましくは0.1~25重量部、さらに好ましくは0.5~20重量部である。このような範囲の場合、優れた光触媒作用、防火性を発揮することができる。 The amount of component (b3) is preferably 0.05 to 30 parts by weight, more preferably 0.1 to 25 parts by weight, still more preferably 0.5 to 100 parts by weight based on 100 parts by weight of the solid content of component (A). 20 parts by weight. In such a range, excellent photocatalytic action and fire resistance can be exhibited.
 本発明では、(B)粉粒体として、(b4)化学物質吸着剤を含むことが好ましい。(b4)成分を含むことにより、有害ガス(例えば、ホルムアルデヒド、アンモニア、硫化水素、メチルメルカプタン、トリメチルアミン等)の吸着、再放出防止に効果的である。(b4)成分としては、例えばアミン化合物、尿素化合物、アミド化合物、イミド化合物、ヒドラジド化合物、アゾール化合物、アジン化合物、層状リン酸化合物、アルミノ珪酸塩等が挙げられる。この中でも、層状リン酸化合物、アルミノ珪酸塩から選ばれる1種以上が好適であり、特にアルミノ珪酸塩が好適である。このような化学物質吸着剤の平均粒子径は、通常0.5~100μm(好ましくは1~50μm)程度である。 In the present invention, it is preferable that (B4) a chemical substance adsorbent is included as (B) the granular material. By including the component (b4), it is effective in preventing adsorption and re-release of harmful gases (for example, formaldehyde, ammonia, hydrogen sulfide, methyl mercaptan, trimethylamine, etc.). Examples of the component (b4) include amine compounds, urea compounds, amide compounds, imide compounds, hydrazide compounds, azole compounds, azine compounds, layered phosphate compounds, and aluminosilicates. Among these, at least one selected from a layered phosphate compound and an aluminosilicate is preferable, and an aluminosilicate is particularly preferable. The average particle size of such a chemical substance adsorbent is usually about 0.5 to 100 μm (preferably 1 to 50 μm).
 層状リン酸化合物としては、層状リン酸ジルコニウム、層状リン酸亜鉛、層状リン酸チタン、層状リン酸アルミニウム、層状リン酸マグネシウム、層状リン酸セリウム等が挙げられ、これら層状リン酸化合物にアミン化合物がインターカレートされたもの好適である。アミン化合物としては、例えば、メチルアミン、エチルアミン、アニリン、エチレンジアミン、ジエチレントリアミン、トリエチレンテトラミン、テトラエチレンペンタミン、ペンタエチレンヘキサミン、プロピレンジアミン、ジプロピレントリアミン、トリプロピレンテトラミン等が挙げられる。 Examples of the layered phosphate compound include layered zirconium phosphate, layered zinc phosphate, layered titanium phosphate, layered aluminum phosphate, layered magnesium phosphate, layered cerium phosphate, and the like. An amine compound is included in these layered phosphate compounds. Intercalated ones are preferred. Examples of the amine compound include methylamine, ethylamine, aniline, ethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethylenehexamine, propylenediamine, dipropylenetriamine, and tripropylenetetramine.
 アルミノ珪酸塩としては、亜鉛、銅、銀、コバルト、ニッケル、鉄、チタン、バリウム、スズ及びジルコニウムから選ばれる少なくとも1種の金属とアルミニウムと珪素の複合酸化物が挙げられる。 Examples of the aluminosilicate include a composite oxide of at least one metal selected from zinc, copper, silver, cobalt, nickel, iron, titanium, barium, tin, and zirconium, and aluminum and silicon.
 (b4)成分の配合量は、(A)成分の固形分100重量部に対し、好ましくは0.1~100重量部、より好ましくは0.5~50重量部、さらに好ましくは1~25重量部である。このような範囲である場合、有毒ガスの吸着に効果的である。 The amount of component (b4) is preferably 0.1 to 100 parts by weight, more preferably 0.5 to 50 parts by weight, still more preferably 1 to 25 parts by weight based on 100 parts by weight of the solid content of component (A). Part. In such a range, it is effective for adsorption of toxic gas.
 本発明では、特に、上記(b3)成分と上記(b4)成分を併用することが好ましい。これらを併用することによって、有害ガスの吸着・分解・再放出防止において実用的な性能を得ることができ、板状硬化体に有害ガスフィルター効果を付与することができる。本発明では、特に、室内側、基材側の両面において、侵入する有害ガスの吸着・分解・再放出防止性能を得ることができる。 In the present invention, it is particularly preferable to use the component (b3) and the component (b4) in combination. By using these together, practical performance can be obtained in the adsorption / decomposition / re-release prevention of harmful gas, and a harmful gas filter effect can be imparted to the plate-like cured body. In the present invention, it is possible to obtain the adsorption / decomposition / re-release prevention performance of the invading harmful gas, particularly on both the indoor side and the base material side.
 本発明板状硬化体においては、装飾性等を高める目的で、平均粒子径5mm超の骨材(C)(以下「(C)成分」という)を混合したり、散布したりすることもできる。本発明に好適な(C)成分としては、例えば、天然石、珪石、珪砂等の粉砕物、陶磁器粉砕物、セラミック粉砕物、マイカ、貝殻類、ガラス粉砕物、ガラスビーズ、樹脂粉砕物、樹脂ビーズ、ゴム類、プラスチック類、植物繊維、植物片等の植物類、アルミナフレーク等の金属類等や、それらの表面を着色コーティングしたもの等が挙げられる。 In the present plate-like cured product, for the purpose of improving the decorativeness and the like, aggregate (C) (hereinafter referred to as “component (C)”) having an average particle diameter of more than 5 mm can be mixed or dispersed. . The component (C) suitable for the present invention includes, for example, pulverized materials such as natural stone, silica stone, and silica sand, ceramic pulverized materials, ceramic pulverized materials, mica, shells, glass pulverized materials, glass beads, resin pulverized materials, and resin beads. , Rubbers, plastics, plant fibers, plants such as plant pieces, metals such as alumina flakes, and those whose surfaces are colored and coated.
 また、本発明の効果を著しく損なわない限り、必要に応じ、公知の添加剤を含むことができる。このような添加剤としては、例えば、増粘剤、造膜助剤、レベリング剤、湿潤剤、可塑剤、凍結防止剤、pH調整剤、防腐剤、防黴剤、防藻剤、抗菌剤、消臭剤、分散剤、消泡剤、吸着剤、難燃剤、着色顔料、体質顔料、繊維、撥水剤、架橋剤、紫外線吸収剤、酸化防止剤、触媒等が挙げられる。 Further, as long as the effects of the present invention are not significantly impaired, known additives can be included as necessary. Examples of such additives include thickeners, film-forming aids, leveling agents, wetting agents, plasticizers, antifreezing agents, pH adjusting agents, antiseptics, antifungal agents, algaeproofing agents, antibacterial agents, Examples include deodorants, dispersants, antifoaming agents, adsorbents, flame retardants, color pigments, extender pigments, fibers, water repellents, crosslinking agents, ultraviolet absorbers, antioxidants, and catalysts.
 本発明の板状硬化体は、基材に積層させることもできる。基材としては、例えば、石膏ボード、合板、コンクリート、モルタル、タイル、繊維混入セメント板、セメント珪酸カルシウム板、スラグセメントパーライト板、樹脂製の板またはシート(フィルム)、織布、不織布、紙等、特に限定されない。本発明では特に、厚さ0.05~1.5mm、(好ましくは0.1~1mm、さらに好ましくは0.25~0.5mm)、坪量5~300g/m、(好ましくは10~200g/m、さらに好ましくは20~100g/m)の無機繊維を含む織布または不織布が好ましい。例えば、鉱物繊維、ガラス繊維等の無機繊維からなる織布または不織布等が挙げられる。特に本発明では、可とう性を有するものが好ましく、さらに繊維を3次元構造に重ね合わせたような構造を有する不織布が好ましい。 The plate-shaped cured product of the present invention can be laminated on a substrate. Examples of the base material include gypsum board, plywood, concrete, mortar, tile, fiber-mixed cement board, cement calcium silicate board, slag cement pearlite board, resin board or sheet (film), woven fabric, nonwoven fabric, paper, etc. There is no particular limitation. Particularly in the present invention, the thickness is 0.05 to 1.5 mm (preferably 0.1 to 1 mm, more preferably 0.25 to 0.5 mm), the basis weight is 5 to 300 g / m 2 , (preferably 10 to 10 mm). A woven or non-woven fabric containing 200 g / m 2 , more preferably 20 to 100 g / m 2 ) inorganic fibers is preferred. Examples thereof include woven fabrics and nonwoven fabrics made of inorganic fibers such as mineral fibers and glass fibers. In particular, in the present invention, those having flexibility are preferred, and nonwoven fabrics having a structure in which fibers are superposed on a three-dimensional structure are preferred.
 また、織布または不織布にガラスメッシュ、ガラスクロス等を積層した基材を使用することができる。上記範囲の基材を使用した場合、板状硬化体との接触界面が大きくなるため密着性に優れる。さらに、壁面等に施工した場合、基材が無機繊維を含むため板状硬化体を安定に支えることができる。このため、火災時の板状硬化体のめくれや反りの防止性、脱落防止性が向上し、防火性、防炎性に優れる。また、上記基材と特定の板状硬化体が積層されていることにより、施工時に任意の形状に容易に切断することも可能であり、切断面の小口処理等を適宜行うこともできる。 In addition, a base material in which a glass mesh, a glass cloth, or the like is laminated on a woven or non-woven fabric can be used. When the base material in the above range is used, the contact interface with the plate-like cured body is increased, and thus the adhesiveness is excellent. Furthermore, when it constructs on a wall surface etc., since a base material contains inorganic fiber, a plate-shaped hardening body can be supported stably. For this reason, the prevention of curling and warping of the plate-like cured body at the time of fire and the prevention of falling off are improved, and the fire resistance and flame resistance are excellent. Moreover, by laminating the base material and the specific plate-like cured body, it is possible to easily cut into an arbitrary shape at the time of construction, and it is possible to appropriately perform the edge processing of the cut surface.
 本発明の板状硬化体の製造方法は、特に限定されないが、例えば、以下の工程を含む製造方法によって製造することができる。この方法によれば、目的とする板状硬化体を安定して製造することができ、効果発現の点でも好適である。 Although the manufacturing method of the plate-shaped hardening body of this invention is not specifically limited, For example, it can manufacture with the manufacturing method including the following processes. According to this method, the target plate-like cured product can be stably produced, and it is also preferable from the standpoint of effect expression.
 固形分重量比率で(A)合成樹脂100重量部に対して、(B)粉粒体200~4000重量部を混合した硬化体用組成物(以下、「硬化体用組成物」ともいう)を板状に成形する第1工程、上記(A)成分の分散ピーク温度(T)よりも高い温度(T)で硬化させる第2工程、を含む。
(ただし、上記(A)成分は、動的粘弾性測定装置を用いて測定した損失正接tanδの分散ピークを少なくとも-20℃~80℃(T)及び-150℃~-100℃(T)のそれぞれの温度範囲に有するものである。)
A cured product composition (hereinafter also referred to as “cured product composition”) in which 200 to 4000 parts by weight of (B) granular material is mixed with 100 parts by weight of (A) synthetic resin in a weight ratio of solids. A first step of forming a plate, and a second step of curing at a temperature (T 3 ) higher than the dispersion peak temperature (T 1 ) of the component (A).
(However, the component (A) has at least −20 ° C. to 80 ° C. (T 1 ) and −150 ° C. to −100 ° C. (T 2 ) dispersion peaks of loss tangent tan δ measured using a dynamic viscoelasticity measuring device. ) In each temperature range.)
 上記第2工程において、(A)成分の分散ピーク温度(T)よりも高い温度(T)で硬化させることにより、本発明の板状硬化体の効果が発現されやすくなる。この作用機構は、明確ではないが、上記温度(T)で硬化させる場合、温度範囲(T)に分散ピークを有する樹脂成分は、板状硬化体の表面に配向し易くなる。その結果、防火性、耐汚染性等に優れた効果を発揮することができると考えられる。 In the second step, by curing with the component (A) of the dispersion peak temperature (T 1) higher temperature than (T 3), the effect of the plate-like cured product of the present invention it is likely to be expressed. This mechanism of action is not clear, but when cured at the above temperature (T 3 ), the resin component having a dispersion peak in the temperature range (T 2 ) is easily oriented on the surface of the plate-shaped cured body. As a result, it is considered that an effect excellent in fire resistance, contamination resistance and the like can be exhibited.
 上記第1工程において、板状硬化体を成型する方法としては特に限定されないが、例えば、離型性を有する型枠等を使用して成型すればよい。また、板状硬化体に基材を積層させる場合は、例えば、以下の方法によって積層すればよい。
(1)基材に板状硬化体用組成物を積層し、乾燥、硬化させる方法
(2)型枠を用いて板状硬化体を成形し、基材を積層させる方法
In the first step, the method for molding the plate-shaped cured body is not particularly limited, and for example, it may be molded using a mold having releasability. Moreover, what is necessary is just to laminate | stack by the following method, for example, when laminating | stacking a base material on a plate-shaped hardening body.
(1) A method of laminating a composition for a plate-shaped cured body on a substrate, drying and curing (2) A method of molding a plate-shaped cured body using a mold and laminating the substrate
 上記(1)において、硬化体用組成物を積層する際には、例えば、スプレー、ローラー、こて、刷毛塗り、レシプロ、コーター、流し込み等の手段を用いた方法を採用することができる。ここで、硬化体用組成物の粘度を5~100Pa・s程度に設定しておけば、目的とする積層体が容易に得られる。なお、ここに言う粘度は、BH型粘度計による20rpmにおける粘度であり、測定温度は23℃である。 In the above (1), when laminating the composition for a cured body, for example, a method using means such as spray, roller, trowel, brush coating, reciprocating, coater, pouring, etc. can be employed. Here, if the viscosity of the composition for cured bodies is set to about 5 to 100 Pa · s, the intended laminate can be easily obtained. In addition, the viscosity said here is a viscosity in 20 rpm by a BH type viscometer, and measurement temperature is 23 degreeC.
 上記(2)において、使用する型枠としては、例えばシリコン樹脂製、ウレタン樹脂製、金属製等の型枠、あるいは離型紙を設けた型枠等が使用できる。また、基材を積層する方法としては、例えば、
 (I)型枠に硬化体用組成物を流し込み、乾燥、脱型して板状硬化体を成型し、その後接着剤等で基材を積層する方法、
 (II)型枠に硬化体用組成物を流し込み、該板状硬化体用組成物が乾燥する前に基材を積層し、乾燥、脱型する方法、等が挙げられる。
 また、上記(I)(II)において硬化体組成物を流し込む際には、上記(1)における積層方法と同様の方法を採用することができる。
In the above (2), as the mold to be used, for example, a mold made of silicon resin, urethane resin, metal, or the like, or a mold provided with release paper can be used. Moreover, as a method of laminating the base material, for example,
(I) A method of pouring a composition for a cured body into a mold, drying and demolding to form a plate-shaped cured body, and then laminating a substrate with an adhesive or the like,
(II) A method of pouring a composition for a cured body into a mold, laminating a substrate before the composition for a plate-shaped cured body is dried, drying, demolding, and the like.
Moreover, when pouring a hardening body composition in said (I) (II), the method similar to the lamination | stacking method in said (1) is employable.
 上記(1)(2)において、板状硬化体の厚みは、1.0mm以上5.0mm以下が好ましい。このような場合、防火性に優れ、かつ彫りの深い凹凸パターンを形成することもできるため、陰影、重厚感のある優れた意匠性を得ることができる。なお、板状硬化体の厚みとは、基材部分を除いたものである。 In the above (1) and (2), the thickness of the plate-like cured body is preferably 1.0 mm or more and 5.0 mm or less. In such a case, it is possible to form a concavo-convex pattern that is excellent in fire resistance and deeply carved, so that it is possible to obtain excellent design with shadow and profound feeling. In addition, the thickness of a plate-shaped hardening body excludes a base-material part.
 また、本発明の効果を阻害しない限り、例えば、補強材(セラミックペーパー、合成紙、ガラスクロス、メッシュ等)を積層することや、装飾性等を高める目的で凹凸模様を形成したり、装飾材料を散布することもできる。装飾材料としては、例えば、有色骨材、マイカ、貝殻類、植物類、アルミナフレーク、ガラスフレーク、金属類、あるいはゴム類、プラスチック類等が挙げられる。 In addition, as long as the effects of the present invention are not hindered, for example, a reinforcing material (ceramic paper, synthetic paper, glass cloth, mesh, etc.) is laminated, a concavo-convex pattern is formed for the purpose of improving decorativeness, etc. Can also be sprayed. Examples of the decorative material include colored aggregates, mica, shells, plants, alumina flakes, glass flakes, metals, rubbers, plastics, and the like.
 例えば、上記(1)の方法で製造する場合、凹凸模様の形成や、装飾材料の散布は、硬化体用組成物が硬化する前に行えばよく、凹凸模様の形成は、こて、型押し、ローラー等を用いた方法を採用することができ、装飾材料の散布は、公知または市販の散布機等を用いることができる。また、上記(2)の方法で製造する場合は、凹凸模様の形成は、型枠側が板状硬化体表面となるため、型枠内側の形状を調整することで付与することができ、装飾材料を散布する場合、公知または市販の散布機等を用い型枠内の底面に装飾材料を散在させた後に、板状硬化体用組成物を流し込めばよい。 For example, when manufacturing by the method of said (1), formation of a concavo-convex pattern and dispersion | distribution of a decoration material should just be performed before the composition for hardening bodies hardens | cures, and formation of a concavo-convex pattern is performed with a trowel, embossing A method using a roller or the like can be employed, and a known or commercially available spreader or the like can be used for spraying the decoration material. Moreover, when manufacturing by the method of said (2), since the formation of an uneven | corrugated pattern becomes a plate-shaped hardening body surface, it can provide by adjusting the shape inside a formwork, and is a decoration material. In the case of spraying, the composition for the plate-shaped cured body may be poured after the decorative material is scattered on the bottom surface in the mold using a known or commercially available sprayer.
 さらに、本発明の効果を著しく阻害しない範囲内であれば、板状硬化体の表面保護性等を高める目的で、上塗層を積層することもできる。上塗層は、透湿性、透明性を有するもの(クリヤー層)であればよく、この場合、上記板状硬化体の意匠性(色相)をそのまま活かすことができ、さらに通気性、防火性等の効果も発揮できる。また、上塗層は、透明性を有する範囲で各種顔料が添加されたカラークリヤー層であってもよい。このような上塗層としては、公知の水性型あるいは溶剤型塗料の塗付によって形成することができる。本発明では、コロイダルシリカを含むエマルション塗料が好ましい。この場合、表面強度、耐汚染性等を高めることができる。さらに、コロイダルシリカを含むことによって、公知の上塗塗料と比較し防火性向上にも効果的である。 Furthermore, an overcoat layer can also be laminated for the purpose of enhancing the surface protection of the plate-like cured product within a range that does not significantly impair the effects of the present invention. The top coat layer only needs to have moisture permeability and transparency (clear layer). In this case, the design property (hue) of the plate-like cured body can be utilized as it is, and further, air permeability, fire resistance, etc. The effect of can also be demonstrated. The overcoat layer may be a color clear layer to which various pigments are added within a range having transparency. Such an overcoat layer can be formed by applying a known water-based or solvent-type paint. In the present invention, an emulsion paint containing colloidal silica is preferred. In this case, surface strength, contamination resistance, etc. can be improved. Furthermore, the inclusion of colloidal silica is effective in improving fire resistance as compared with a known top coating.
 上記コロイダルシリカを含むエマルションとしては、合成樹脂エマルションとコロイダルシリカを混合したもの、合成樹脂エマルションとコロイダルシリカが化学的に結合したコロイダルシリカ複合エマルション等が挙げられ、本発明では、コロイダルシリカ複合エマルションを使用することが好ましい。上記合成樹脂エマルションとしては、特に限定されず、本発明の効果を害さないものであれば適宜使用することができる。また、コロイダルシリカを含むエマルション中の合成樹脂成分とコロイダルシリカは固形分重量比で95:5~40:60であることが好ましい。コロイダルシリカの粒子径は、10nm~100nmであることが好ましい。このような範囲である場合、本発明の効果を阻害することなく、板状硬化体の表面保護性、防火性を向上させることができる。 Examples of the emulsion containing colloidal silica include a mixture of a synthetic resin emulsion and colloidal silica, a colloidal silica composite emulsion in which a synthetic resin emulsion and colloidal silica are chemically bonded, and the like in the present invention. It is preferable to use it. It does not specifically limit as said synthetic resin emulsion, If it does not impair the effect of this invention, it can use suitably. The synthetic resin component and the colloidal silica in the emulsion containing colloidal silica are preferably 95: 5 to 40:60 in terms of solid content weight ratio. The particle size of colloidal silica is preferably 10 nm to 100 nm. In such a range, it is possible to improve the surface protection and fire resistance of the plate-shaped cured body without inhibiting the effects of the present invention.
 これらの塗装は、公知の塗装方法によれば良く、スプレー、コーター、ローラー、刷毛等の塗装器具を使用することができる。 These coatings may be performed by a known coating method, and a coating instrument such as a spray, a coater, a roller, or a brush can be used.
 本発明板状硬化体は、主に建築物の内装建材として適用できる。すなわち、建築物内装面の各部位に貼り付けて内装仕上げを行うことができる。具体的には、住宅、マンション、学校、病院、店舗、事務所、工場、倉庫、食堂等における壁、間仕切り、扉、天井等に適用できる。このような部位を構成する下地としては、例えば、石膏ボード、合板、コンクリート、モルタル、タイル、繊維混入セメント板、セメント珪酸カルシウム板、スラグセメントパーライト板等が挙げられる。これら下地は、その表面に既存塗膜を有するものや、既に壁紙が貼り付けられたもの等であってもよい。本発明板状硬化体は、このような下地に対し、板状硬化体が室内側を向くようにして施工する。 The present plate-like cured body can be mainly applied as an interior building material of a building. That is, interior finishing can be performed by pasting on each part of the building interior surface. Specifically, it can be applied to walls, partitions, doors, ceilings, etc. in houses, condominiums, schools, hospitals, stores, offices, factories, warehouses, restaurants, etc. Examples of the base constituting such a part include gypsum board, plywood, concrete, mortar, tile, fiber-mixed cement board, cement calcium silicate board, and slag cement pearlite board. These bases may be those having an existing coating film on the surface thereof, or those already having wallpaper attached thereto. The plate-shaped cured body of the present invention is applied to such a base so that the plate-shaped cured body faces the indoor side.
 また、本発明板状硬化体を施工する際には、接着剤、粘着剤、粘着テープ、釘、鋲等を用いて基体に貼着すればよい。その他、ピン、ファスナー、レール等を用いて固定化することもできる。中でも、本発明の板状硬化体は、接着剤を用いて下地に貼着することが好ましい。 Further, when the plate-shaped cured body of the present invention is constructed, it may be adhered to the substrate using an adhesive, a pressure-sensitive adhesive, a pressure-sensitive adhesive tape, a nail, a heel or the like. In addition, it can also be fixed using pins, fasteners, rails or the like. Especially, it is preferable to stick the plate-shaped hardening body of this invention to a base | substrate using an adhesive agent.
 接着剤としては、特に限定されず、公知のものを使用すればよい。例えば、接着材に用いる合成樹脂としては、特に限定されないが、エチレン樹脂、酢酸ビニル樹脂、ポリエステル樹脂、アルキッド樹脂、塩化ビニル樹脂、エポキシ樹脂、アクリル樹脂、ウレタン樹脂、フェノール樹脂、メラミン樹脂、アミノ樹脂、ポリカーボネート樹脂、アクリルシリコン樹脂、アクリル酢酸ビニル樹脂、アクリルスチレン樹脂、アクリルウレタン樹脂、シリコン樹脂、フッ素樹脂等の水可溶型、水分散型等が挙げられ、これらの1種または2種以上を使用することができる。 The adhesive is not particularly limited, and a known one may be used. For example, the synthetic resin used for the adhesive is not particularly limited, but ethylene resin, vinyl acetate resin, polyester resin, alkyd resin, vinyl chloride resin, epoxy resin, acrylic resin, urethane resin, phenol resin, melamine resin, amino resin , Polycarbonate resin, acrylic silicon resin, acrylic vinyl acetate resin, acrylic styrene resin, acrylic urethane resin, silicone resin, water-soluble type such as fluorine resin, water dispersion type, etc. Can be used.
 また、施工性、仕上り性、接着強度、防火性等の各種性能を付与するために、粉体成分、中空粒子、多孔質粒子、繊維等を添加したり、必要に応じ、着色材料、体質顔料、分散剤、粘性調整剤、消泡剤、防黴剤、防腐剤、防藻剤等の通常使用される添加剤を適宜加えることができる。 In addition, powder components, hollow particles, porous particles, fibers, etc. may be added to give various performances such as workability, finish, adhesive strength, fire resistance, etc., and coloring materials and extender pigments may be added as necessary. Commonly used additives such as dispersants, viscosity modifiers, antifoaming agents, antifungal agents, preservatives, and algaeproofing agents can be added as appropriate.
 板状硬化体を接着剤で貼り付ける際、隣接する板状硬化体どうしを突き合わせて貼りつけたり、板状硬化体間に目地を設けたりすることもできる。突き合わせて貼り付ける場合、接着剤がはみ出さないようにすることが好ましい。また、目地を設ける場合、板状硬化体を貼り付ける際の間隔は特には限定されないが、1mm~30mm程度であればよい。このような範囲であれば、目地模様を生かした内装仕上げを行うことができる。接着剤を板状硬化体の間で露出させることができ、容易に目地部を形成することができる。また、必要に応じて目地部の接着剤をへら等で平滑処理しても良い。接着剤を硬化させる際の雰囲気温度は、適宜設定することができるが、通常は常温でよい。 When the plate-shaped cured bodies are pasted with an adhesive, adjacent plate-shaped cured bodies can be abutted and pasted, or joints can be provided between the plate-shaped cured bodies. When affixing and affixing, it is preferable that the adhesive does not protrude. In addition, when providing joints, the interval at which the plate-like cured body is attached is not particularly limited, but may be about 1 mm to 30 mm. If it is such a range, interior finishing which makes use of a joint pattern can be performed. An adhesive agent can be exposed between plate-shaped hardening bodies, and a joint part can be formed easily. Moreover, you may smooth the adhesive of a joint part with a spatula etc. as needed. The ambient temperature at which the adhesive is cured can be set as appropriate, but is usually room temperature.
 以下に実施例を示し、本発明の特徴をより明確にする。 Examples are given below to clarify the features of the present invention.
<合成樹脂A>
(合成樹脂1~合成樹脂3)
 構成成分として、t-ブチルメタクリレート、n-ブチルアクリレート、2-エチルヘキシルアクリレート、メタクリル酸メチル、γ-メタクリロイルオキシプロピルトリメトキシシラン、ヘキサメチルシクロトリシロキサン、オクタメチルシクロテトラシロキサン、デカメチルシクロペンタシロキサンをグラフト共重合し、アクリル‐シリコーングラフト共重合型合成樹脂エマルションを製造した。これらを、合成樹脂1~3とした。各合成樹脂は、以下の特徴を有するものである。
・合成樹脂1
 アクリル成分とシリコーン成分の固形分重量比80:20
 DMS分散ピーク温度:55℃、-130℃
 固形分50重量%
・合成樹脂2
 アクリル成分とシリコーン成分の固形分重量比80:20
 DMS分散ピーク温度:75℃、-130℃
 固形分50重量%
・合成樹脂3
 アクリル成分とシリコーン成分の重量比90:10
 DMS分散ピーク温度:55℃、-130℃
 固形分50重量%
<Synthetic resin A>
(Synthetic resin 1 to synthetic resin 3)
As structural components, t-butyl methacrylate, n-butyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate, γ-methacryloyloxypropyltrimethoxysilane, hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane Graft copolymerization was carried out to produce an acrylic-silicone graft copolymer type synthetic resin emulsion. These were designated as synthetic resins 1 to 3. Each synthetic resin has the following characteristics.
・ Synthetic resin 1
Acrylic component and silicone component weight ratio 80:20
DMS dispersion peak temperature: 55 ° C, -130 ° C
Solid content 50% by weight
・ Synthetic resin 2
Acrylic component and silicone component weight ratio 80:20
DMS dispersion peak temperature: 75 ° C, -130 ° C
Solid content 50% by weight
・ Synthetic resin 3
Weight ratio of acrylic component to silicone component 90:10
DMS dispersion peak temperature: 55 ° C, -130 ° C
Solid content 50% by weight
(合成樹脂4~合成樹脂6)
 以下に示すアクリル樹脂エマルションとシリコーン樹脂エマルションを混合し合成樹脂4~6とした。
 アクリル樹脂エマルション(構成成分;t-ブチルメタクリレート、n-ブチルアクリレート、2-エチルヘキシルアクリレート、メタクリル酸メチル)、固形分50重量%
 シリコーン樹脂エマルション(ジメチルシロキサン化合物の乳化分散液)、固形分50重量%
・合成樹脂4;アクリル樹脂エマルション:シリコーン樹脂エマルション(固形分重量比)=80:20、DMS分散ピーク温度:55℃、-130℃
・合成樹脂5;アクリル樹脂エマルション:シリコーン樹脂エマルション(固形分重量比)=50:50、DMS分散ピーク温度:55℃、-130℃
・合成樹脂6;アクリル樹脂エマルション:シリコーン樹脂エマルション(固形分重量比)=90:10、DMS分散ピーク温度:55℃、-130℃
(Synthetic resin 4 to synthetic resin 6)
The following acrylic resin emulsion and silicone resin emulsion were mixed to obtain synthetic resins 4 to 6.
Acrylic resin emulsion (component: t-butyl methacrylate, n-butyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate), solid content 50% by weight
Silicone resin emulsion (emulsified dispersion of dimethylsiloxane compound), solid content 50% by weight
Synthetic resin 4; acrylic resin emulsion: silicone resin emulsion (solid content weight ratio) = 80: 20, DMS dispersion peak temperature: 55 ° C., −130 ° C.
Synthetic resin 5; acrylic resin emulsion: silicone resin emulsion (solid content weight ratio) = 50: 50, DMS dispersion peak temperature: 55 ° C., −130 ° C.
Synthetic resin 6; acrylic resin emulsion: silicone resin emulsion (solid content weight ratio) = 90: 10, DMS dispersion peak temperature: 55 ° C., −130 ° C.
・合成樹脂7
 アクリル樹脂エマルション(構成成分;t-ブチルメタクリレート、n-ブチルアクリレート、2-エチルヘキシルアクリレート、メタクリル酸メチル)、固形分50重量%、DMS分散ピーク温度:55℃
・ Synthetic resin 7
Acrylic resin emulsion (component: t-butyl methacrylate, n-butyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate), solid content 50% by weight, DMS dispersion peak temperature: 55 ° C.
 上記合成樹脂1~7を、離型紙上に塗付、乾燥させ、膜厚0.1mmのフィルムを作製したものを試料とし、フィルムの反射率を測定した。なお、フィルムの反射率は、分光光度計(株式会社島津製作所製、UV-3100)を用いて行った。結果を表1に示す。 The above-mentioned synthetic resins 1 to 7 were applied on a release paper and dried to prepare a film having a thickness of 0.1 mm, and the reflectance of the film was measured. The reflectance of the film was measured using a spectrophotometer (manufactured by Shimadzu Corporation, UV-3100). The results are shown in Table 1.
 その結果、合成樹脂1、2、4、5、6は、波長領域300nm~500nmにおいて紫外線反射率が10%以上となる領域を有するものであった。また、合成樹脂3は、波長400nm以上の領域において紫外線反射率が10%以下、波長400nm未満の領域において紫外線反射率が10%以上となる領域を有するものであった。一方、合成樹脂7は、当該波長領域において、紫外線反射率は10%未満であった。その代表値として、波長380nm、400nm、500nmでの紫外線反射率を表1に示す。 As a result, the synthetic resins 1, 2, 4, 5, and 6 have a region in which the ultraviolet reflectance is 10% or more in the wavelength region of 300 nm to 500 nm. In addition, the synthetic resin 3 has a region where the ultraviolet reflectance is 10% or less in a region having a wavelength of 400 nm or more, and the ultraviolet reflectance is 10% or more in a region having a wavelength of less than 400 nm. On the other hand, the synthetic resin 7 had an ultraviolet reflectance of less than 10% in the wavelength region. Table 1 shows the ultraviolet reflectance at wavelengths of 380 nm, 400 nm, and 500 nm as typical values.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
(板状硬化体の製造)
 表2、表3に示す配合に従い、各原料を常法により混合・攪拌することによって硬化体用組成物1~14を製造した。なお、原料としては以下のものを使用した。
(Manufacture of plate-shaped cured body)
According to the formulations shown in Tables 2 and 3, cured materials 1 to 14 were produced by mixing and stirring the respective raw materials by a conventional method. In addition, the following were used as a raw material.
(B)粉粒体
(b1)成分
・骨材1:着色珪砂(淡黄色、平均粒子径80~120μm)
・骨材2:重質炭酸カルシウム(平均粒子径50~150μm)
(b2)成分
・吸放湿性粉体:シリカゲル(平均粒子径 20μm、かさ比重 0.30g/ml、吸湿率80%(20℃、90%RH雰囲気下))
(b3)成分
・光触媒酸化物1:紫外線応答性アナターゼ型酸化チタン(励起波長:200~380nm、平均粒子径0.2μm)
・光触媒酸化物2:可視光応答性アナターゼ型酸化チタン(励起波長:400~650nm、平均粒子径15nm)
(b4)成分
・化学物質吸着剤:アルミノ珪酸亜鉛(平均粒子径3μm)
(添加剤)
・増粘剤(ヒドロキシエチルセルロース、ウレタン会合性増粘剤)、水
(B) Powder and granule (b1) component / aggregate 1: colored silica sand (light yellow, average particle diameter of 80 to 120 μm)
-Aggregate 2: Heavy calcium carbonate (average particle size 50-150μm)
(B2) Component / Hygroscopic powder: Silica gel (average particle size 20 μm, bulk specific gravity 0.30 g / ml, moisture absorption 80% (under 20 ° C., 90% RH atmosphere))
(B3) Component / photocatalytic oxide 1: UV-responsive anatase-type titanium oxide (excitation wavelength: 200 to 380 nm, average particle size 0.2 μm)
Photocatalytic oxide 2: Visible light-responsive anatase-type titanium oxide (excitation wavelength: 400 to 650 nm, average particle diameter of 15 nm)
(B4) Component / Chemical substance adsorbent: Zinc aluminosilicate (average particle size 3 μm)
(Additive)
・ Thickener (hydroxyethylcellulose, urethane associative thickener), water
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000002
Figure JPOXMLDOC01-appb-T000003
Figure JPOXMLDOC01-appb-T000003
(試験例1~14)
 シリコン製の型枠に硬化体用組成物1~14を乾燥膜厚が2mmとなるように流し込み、100℃下で30分間乾燥させ、脱型し、板状硬化体1~14を得た。
(Test Examples 1 to 14)
The cured product compositions 1 to 14 were poured into a silicon mold so that the dry film thickness was 2 mm, dried at 100 ° C. for 30 minutes, and demolded to obtain plate-like cured products 1 to 14.
上記の各板状硬化体を40mm×10mm(厚み:2mm)に切り出し、DMS測定用の試験体とし、セイコーインスツル株式会社製DMS6100を用いて、測定温度範囲:-150℃~80℃、昇温速度:4℃/min、測定周波数:1Hzの条件下で測定した。測定した損失正接tanδの分散ピーク温度を表4に示す。 Each of the above plate-like cured bodies was cut into 40 mm × 10 mm (thickness: 2 mm) and used as a test specimen for DMS measurement, using a DMS6100 manufactured by Seiko Instruments Inc., measuring temperature range: −150 ° C. to 80 ° C. Measurement was performed under conditions of a temperature rate of 4 ° C./min and a measurement frequency of 1 Hz. Table 4 shows the measured dispersion peak temperature of loss tangent tan δ.
Figure JPOXMLDOC01-appb-T000004
Figure JPOXMLDOC01-appb-T000004
・評価A
 基材(ガラス不織布:厚み0.4mm、坪量50g/m)上に、上記板状硬化体用組成物1~14を乾燥後の板状硬化体の厚さが2mmとなるように塗付し、100℃下で30分間乾燥させ、板状硬化体の積層体1A~14Aを得た。
・ Evaluation A
On a substrate (glass nonwoven fabric: thickness 0.4 mm, basis weight 50 g / m 2 ), the above plate-shaped cured body compositions 1 to 14 are applied so that the thickness of the plate-shaped cured body after drying is 2 mm. And dried at 100 ° C. for 30 minutes to obtain laminates 1A to 14A of plate-like cured bodies.
 各積層体について、意匠性、防火性、可とう性、通気性の評価を実施した。結果を表5に示す。 Each of the laminates was evaluated for designability, fire resistance, flexibility, and air permeability. The results are shown in Table 5.
<意匠性評価>
 積層体1A~14Aの板状硬化体の骨材による質感と隠ぺい性を目視にて評価した。評価基準は、骨材の質感及び隠ぺい性の良好なものを「A」、骨材の質感、及び隠ぺい性が不十分なものを「D」とする4段階評価(優:A>B>C>D:劣)で行った。
<Design evaluation>
The texture and concealment due to the aggregate of the plate-like cured bodies of the laminates 1A to 14A were visually evaluated. The evaluation standard is a four-step evaluation (excellent: A>B> C) where “A” is the material with good texture and concealment of the aggregate and “D” is the material with the insufficient texture and aggregate. > D: Inferior).
<防火性評価>
 試験用の基材として、100mm×100mm×12.5mmの石膏ボードを用い、基材に接着材を塗付し、各積層体1A~14Aを貼り付け、23℃、50±10%RH下で24時間養生したものを試験体とした。
<Fireproof evaluation>
A 100 mm × 100 mm × 12.5 mm gypsum board was used as a base material for the test, an adhesive was applied to the base material, and each of the laminates 1A to 14A was attached, at 23 ° C. and 50 ± 10% RH. The specimens cured for 24 hours were used as test specimens.
 上記試験体を、ISO5660規定のコーンカロリーメーターにより20分後の総発熱量を測定した。なお、コーンカロリーメーターとしては「CONE2A」(アトラス製)を用い、加熱強度は50kW/mとした。
発熱性試験の評価基準は、以下の通りである。
 A:加熱時間20分での総発熱量が6.0MJ/m2以下
 B:加熱時間20分での総発熱量が6.0MJ/m2を超え、8.0MJ/m2以下
 C:加熱時間20分での総発熱量が8.0MJ/m2を超え、10.0MJ/m2以下
 D:加熱時間20分での総発熱量が10.0MJ/m2を超え、12.0MJ/m2以下
 E:加熱時間20分での総発熱量が12.0MJ/m2を超える
The total calorific value of the test specimen after 20 minutes was measured with a cone calorimeter defined by ISO 5660. As the corn calorimeter, “CONE2A” (manufactured by Atlas) was used, and the heating intensity was 50 kW / m 2 .
The evaluation criteria for the exothermic test are as follows.
A: Total calorific value after heating time of 20 minutes is 6.0 MJ / m 2 or less B: Total calorific value after heating time of 20 minutes exceeds 6.0 MJ / m 2 and is 8.0 MJ / m 2 or less C: Heating It exceeds the total calorific value 8.0MJ / m 2 at time 20 minutes, 10.0 mJ / m 2 or less D: the total amount of heat generated at the heating time of 20 minutes exceeds 10.0MJ / m 2, 12.0MJ / m 2 or less E: Total calorific value after heating time of 20 minutes exceeds 12.0 MJ / m 2
<可とう性評価>
 試験用の基材として、70mm×150mm×0.8mmのアルミ板を用い、基材に接着材を塗付し、各積層体1A~14Aを貼り付け、23℃、50±10%RH下で24時間養生したものを試験体とした。試験体の裏面のほぼ中央に直径10mmの銅棒を当て、板状硬化体面を外側にして折り曲げ、表面にひび割れが発生した角度を評価した。
<Flexibility evaluation>
A 70 mm × 150 mm × 0.8 mm aluminum plate was used as a base material for the test, an adhesive was applied to the base material, and each of the laminates 1A to 14A was affixed, at 23 ° C. and 50 ± 10% RH. The specimens cured for 24 hours were used as test specimens. A copper rod having a diameter of 10 mm was applied to the center of the back surface of the test body, bent with the plate-like cured body surface facing outward, and the angle at which cracks occurred on the surface was evaluated.
<吸湿性評価1>
 試験用の基材として、100mm×100mm×12.5mmの石膏ボードを用い、基材に接着材を塗付し、各積層体1A~14Aを貼り付け、23℃、50±10%RH下で24時間養生したものを試験体とした。各試験体を、23℃、90%RH雰囲気下に放置し、24hr後の吸湿量を評価(g/m)した。吸湿性の評価基準は、以下の通りである。
 A:100g/m以上
 B:90g/m以上100g/m未満
 C:90g/m未満
 なお、上記接着材は、合成樹脂1、酸化チタン、重質炭酸カルシウム、分散剤、増粘剤、消泡剤、及び水を均一に攪拌・混合して製造したものを使用した。
<Hygroscopic evaluation 1>
A 100 mm × 100 mm × 12.5 mm gypsum board was used as a base material for the test, an adhesive was applied to the base material, and each of the laminates 1A to 14A was attached, at 23 ° C. and 50 ± 10% RH. The specimens cured for 24 hours were used as test specimens. Each specimen was left in an atmosphere of 23 ° C. and 90% RH, and the moisture absorption after 24 hours was evaluated (g / m 2 ). The evaluation criteria for hygroscopicity are as follows.
A: 100 g / m 2 or more B: 90 g / m 2 or more and less than 100 g / m 2 C: less than 90 g / m 2 Note that the adhesive is made of synthetic resin 1, titanium oxide, heavy calcium carbonate, dispersant, thickening. An agent, an antifoaming agent, and water produced by uniformly stirring and mixing were used.
Figure JPOXMLDOC01-appb-T000005
Figure JPOXMLDOC01-appb-T000005
 次いで、以下の評価を実施した。 Next, the following evaluation was performed.
・評価B
 基材(ガラス不織布:厚み0.4mm、坪量50g/m)上に、硬化体用組成物1~14を乾燥後の板状硬化体の厚さが2mmとなるように塗付し、表6及び7に示す温度下で30分間乾燥させ、板状硬化体の積層体1B~16Bを得た。
・ Evaluation B
On a base material (glass nonwoven fabric: thickness 0.4 mm, basis weight 50 g / m 2 ), the cured body compositions 1 to 14 were applied so that the thickness of the plate-shaped cured body after drying was 2 mm. Drying was performed for 30 minutes at the temperatures shown in Tables 6 and 7 to obtain laminates 1B to 16B of plate-like cured bodies.
<汚染性評価1>
 積層体1B~16Bの表面に、コーヒーを刷毛塗りし、5分後、濡れたウエスで拭き取り、汚染性を目視評価した。評価基準は、汚れが除去されたものを「A」、汚れが著しく残存したものを「D」とする4段階評価(優:A>B>C>D:劣)で行った。
<Contamination evaluation 1>
The surface of each of the laminates 1B to 16B was brushed with coffee, and after 5 minutes, wiped with a wet cloth and visually evaluated for contamination. The evaluation criteria were a four-step evaluation (excellent: A>B>C> D: poor), where “A” is the one from which the dirt has been removed and “D” is the one from which the dirt remains significantly.
<吸湿性評価2>
 汚染性評価1の評価後の各積層体を用いた以外は、吸湿性評価1と同様にして試験体を作製した。各試験体を、23℃、90%RH雰囲気下に放置し、24hr後の吸湿量を評価(g/m)した。吸湿性の評価基準は、吸湿性評価1と同様である。
<Hygroscopic evaluation 2>
A test specimen was prepared in the same manner as in the hygroscopic evaluation 1 except that each laminate after the evaluation of the pollution evaluation 1 was used. Each specimen was left in an atmosphere of 23 ° C. and 90% RH, and the moisture absorption after 24 hours was evaluated (g / m 2 ). The evaluation criteria for hygroscopicity are the same as for hygroscopic evaluation 1.
Figure JPOXMLDOC01-appb-T000006
Figure JPOXMLDOC01-appb-T000006
Figure JPOXMLDOC01-appb-T000007
Figure JPOXMLDOC01-appb-T000007
 次いで、以下の評価を実施した。 Next, the following evaluation was performed.
・評価C
 基材(ガラス不織布:厚み0.4mm、坪量50g/m)上に、上記硬化体用組成物1~6、9~13を乾燥後の板状硬化体の厚さが2mmとなるように塗付し、100℃下で30分間乾燥させ、板状硬化体の積層体1C~11Cを得た。
・ Evaluation C
The thickness of the plate-like cured product after drying the cured composition 1 to 6, 9 to 13 on the base material (glass nonwoven fabric: thickness 0.4 mm, basis weight 50 g / m 2 ) is 2 mm. And dried at 100 ° C. for 30 minutes to obtain laminates 1C to 11C of plate-like cured bodies.
<光触媒作用試験>
 各積層体を試験体とし、1.0wt%フェノールフタレインのエタノール溶液に、水酸化ナトリウムを2%添加した溶液を、上記試験体表面に塗布した後、太陽光(波長領域305~4045nm)に合計36時間暴露し、その前後の色差を測定した。光触媒の作用によるフェノールフタレインの分解を色差△Eに基づき評価した。なお、色差の測定は、色差計(CM-3700d、ミノルタ株式会社製)を用いて行った。
光触媒作用試験の評価基準は、以下の通りである。
 A:6≦△E
 B:5<△E<6
 C:△E≦5
<Photocatalytic test>
Each laminate was used as a test body, and a solution obtained by adding 2% sodium hydroxide to an ethanol solution of 1.0 wt% phenolphthalein was applied to the surface of the test body and then exposed to sunlight (wavelength region: 305 to 4045 nm). Exposure was made for a total of 36 hours, and the color difference before and after that was measured. The decomposition of phenolphthalein by the action of the photocatalyst was evaluated based on the color difference ΔE. The color difference was measured using a color difference meter (CM-3700d, manufactured by Minolta Co., Ltd.).
The evaluation criteria for the photocatalytic test are as follows.
A: 6 ≦ ΔE
B: 5 <ΔE <6
C: ΔE ≦ 5
Figure JPOXMLDOC01-appb-T000008
Figure JPOXMLDOC01-appb-T000008

Claims (9)

  1.  合成樹脂、及び粉粒体を含む板状硬化体であって、
     上記板状硬化体は、固形分重量比率で合成樹脂100重量部に対して、粉粒体200~4000重量部を含み、
     上記板状硬化体は、動的粘弾性測定装置を用いて測定した損失正接tanδの分散ピークを少なくとも-20℃~80℃(T)及び-150℃~-100℃(T)のそれぞれの温度範囲に有するものであることを特徴とする板状硬化体。
    It is a plate-like cured body containing a synthetic resin and powder,
    The plate-like cured body contains 200 to 4000 parts by weight of a granular material with respect to 100 parts by weight of a synthetic resin in a solid content weight ratio,
    The plate-like cured product has a dispersion peak of loss tangent tan δ measured using a dynamic viscoelasticity measuring device at least from −20 ° C. to 80 ° C. (T 1 ) and from −150 ° C. to −100 ° C. (T 2 ). A plate-like cured body having a temperature range of
  2.  上記合成樹脂は、動的粘弾性測定装置を用いて測定した損失正接tanδの分散ピークを少なくとも-20℃~80℃(T)及び-150℃~-100℃(T)のそれぞれの温度範囲に有するものであることを特徴とする請求項1に記載の板状硬化体。 The above synthetic resin has a loss tangent tan δ dispersion peak measured using a dynamic viscoelasticity measuring device at a temperature of at least −20 ° C. to 80 ° C. (T 1 ) and −150 ° C. to −100 ° C. (T 2 ). The plate-like cured body according to claim 1, which has a range.
  3.  上記合成樹脂は、アクリル樹脂、及びシリコーン樹脂を固形分重量比率95:5~30:70で含むものであることを特徴とする請求項1~請求項2のいずれかに記載の板状硬化体。 3. The plate-like cured product according to claim 1, wherein the synthetic resin contains an acrylic resin and a silicone resin in a solid content weight ratio of 95: 5 to 30:70.
  4.  上記合成樹脂は、アクリル樹脂、及びシリコーン樹脂のグラフト重合体であることを特徴とする請求項1~請求項3のいずれかに記載の板状硬化体。 The plate-like cured product according to any one of claims 1 to 3, wherein the synthetic resin is a graft polymer of an acrylic resin and a silicone resin.
  5.  上記粉粒体は、有色骨材、及び吸放湿性粉体を含むことを特徴とする請求項1~請求項4のいずれかに記載の板状硬化体。 The plate-like cured body according to any one of claims 1 to 4, wherein the granular material includes colored aggregates and hygroscopic powder.
  6.  上記粉粒体として、さらに光触媒金属酸化物を含むことを特徴とする請求項1~請求項5のいずれかに記載の板状硬化体。 6. The plate-like cured product according to claim 1, further comprising a photocatalytic metal oxide as the granular material.
  7.  上記粉粒体として、さらに化学物質吸着剤を含むことを特徴とする請求項1~請求項6のいずれかに記載の板状硬化体。 7. The plate-like cured body according to claim 1, further comprising a chemical substance adsorbent as the granular material.
  8.  請求項1~請求項7のいずれかに記載の硬化体の上に、透湿性の上塗層が積層されたことを特徴とする板状硬化体。 A plate-like cured body comprising a cured body according to any one of claims 1 to 7 and a moisture-permeable overcoat layer laminated thereon.
  9.  合成樹脂、及び粉粒体を含む板状硬化体の製造方法であって、
     上記合成樹脂は、動的粘弾性測定装置を用いて測定した損失正接tanδの分散ピークを少なくとも-20℃~80℃(T)及び-150℃~-100℃(T)のそれぞれの温度範囲に有するものであり、
     固形分重量比率で合成樹脂100重量部に対して、粉粒体200~4000重量部を混合し、成形する第1工程、
     上記合成樹脂の分散ピーク温度(T)よりも高い温度で硬化させる第2工程、を含むことを特徴とする板状硬化体の製造方法。
    A method for producing a synthetic resin and a plate-like cured body containing a powder,
    The above synthetic resin has a loss tangent tan δ dispersion peak measured using a dynamic viscoelasticity measuring device at a temperature of at least −20 ° C. to 80 ° C. (T 1 ) and −150 ° C. to −100 ° C. (T 2 ). Have in the range,
    A first step of mixing and molding 200 to 4000 parts by weight of a granular material with respect to 100 parts by weight of a synthetic resin in a solid content weight ratio;
    A second step of curing at a temperature higher than the dispersion peak temperature (T 1 ) of the synthetic resin.
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