WO2006054335A1 - 暖房床 - Google Patents
暖房床 Download PDFInfo
- Publication number
- WO2006054335A1 WO2006054335A1 PCT/JP2004/017026 JP2004017026W WO2006054335A1 WO 2006054335 A1 WO2006054335 A1 WO 2006054335A1 JP 2004017026 W JP2004017026 W JP 2004017026W WO 2006054335 A1 WO2006054335 A1 WO 2006054335A1
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- WO
- WIPO (PCT)
- Prior art keywords
- layer
- foam
- heating floor
- floor
- heating
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
- F24D3/14—Tube and panel arrangements for ceiling, wall, or underfloor heating incorporated in a ceiling, wall or floor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Definitions
- the present invention uses a thin plate-like body so that the initial warming is very fast, the thermal efficiency is high, and the running cost is low. Nagu It relates to a heated floor with excellent sound insulation.
- mat layers with built-in fluid pipes that allow fluids such as hot water to pass through for example, in detached houses, underlaying plywood laid between the large pull and the floorboard, on the large pull
- apartment houses such as condominiums on the upper surface of the floor
- flooring material on the mat layer are widely used (for example, Patent Document 1 etc.)
- the most popular heating floor in Japan is a form (separate type) in which a plate-like body such as flooring is laid on the upper surface of what is called a hot water mat or hot water panel.
- a hot water mat or hot water panel For hot water mats, etc., cross-linked polyethylene pipes and copper pipes have been incorporated into base materials such as polystyrene foam and MDF, which have been grooved into grooves (in recent years, cross-linked polyethylene pipes are preferred from the viewpoint of joint workability.
- the top surface is covered with an aluminum adhesive sheet, aluminum plate, etc., and generally has a thickness of 12-15 mm.
- a plate-like body such as flooring is commonly used in detached houses, etc., regardless of whether the floor heating is performed (floor heating section) or the heel section (non-floor heating section).
- the mainstream is the use of things.
- Such a plate-like body is subjected to various measures such as humidity control and moisture-proofing at the time of manufacture in order to dry and prevent eyes from being exposed to heat directly from the hot water mat.
- the thickness of the flooring is 1 as described above. Since it is 2 mm or more, the heat conduction from the hot water mat becomes very bad, and there are problems such as (1) it takes a very long time to raise the temperature, and (2) the temperature of the floor is not very hot. In order to overcome these problems, high-temperature hot water (60 ° C or higher) must flow, the heat loss in the piping from the heat source to the hot water mat increases, and the heat source load increases. Therefore, it is not preferable in terms of running cost or environment.
- the direct attachment method is used in which flooring is directly attached to concrete slabs.
- the flooring used in this case has high soundproofing performance and does not transmit sound downstairs.
- a 13-16 mm soundproof flooring is generally used in which a non-woven fabric foam, a rubber-like body, etc. are arranged on the lower surface of a plate-like body such as plywood.
- the soundproofing layer such as non-woven fabric or resin foam is placed just above the hot water mat to raise the heat.
- the heat conduction to the plate-like body and further to the room space is worse than that of a detached house ( Figure 19).
- Such a level difference is generally less than 3mm, so it will not cause much trouble in daily life, and it will be barrier-free by simple ground treatment, etc., so the total floor thickness is 18mm or less. Was longing for.
- Polyolefin resin foam is a crystalline resin but has a Tg of 0 ° C or less. Under normal temperature conditions (5-80 ° C) as a heated floor, it is semi-rubbery or leathery. Therefore, it has both flexibility and toughness, and high recovery from deformation (Non-patent Document 1, etc.).
- foams made of polyolefin-based resin generally have a problem that if they are used as a mat layer of a heated floor, which is generally low in compressive strength, the sinking during walking is large and it is difficult to walk.
- the radiator is usually divided into a plurality of radiator units for the convenience of transportation and the like, and a method of laying after being brought into the laying site in a folded state is adopted. Yes.
- Patent Document 2 a groove is engraved on one surface along the length direction, and at least a long base body in which a conducting pipe for heating fluid is embedded is provided in this groove. Two sheets, with the top edge of both substrates in contact, or with a wooden support between both substrates The surface part made of a thin metal plate is applied to the most part of the surface part, and the folded part is formed on the floor heating panel in which the part where the upper surface end part is in contact is formed as a detachable folding part.
- a fitting part is provided so that it can be attached and removed, and this fitting part is connected to the groove of the base, with the tip of the folding part of the base on the side of the fitting part as the center. Curved groove is engraved, and the groove of this fitting part is for floor heating that can be fitted / removed while connected to the heating fluid conduction pipe embedded in the groove of the base A panel is disclosed.
- the part where the fluid piping of the two units to be folded is passed is made removable, and the part is folded after being removed as shown in FIG. 16B.
- the fluid piping is not fixed and transported in an exposed state, which may cause damage. There was a problem that it was necessary to fit and labor was required. In addition, there is a problem that the packaging becomes large because the bending is larger than the minimum bending radius of the fluid piping.
- Patent Document 3 discloses a foldable heat dissipating member composed of a plurality of long and narrow plate-like bodies each having an embedded groove for a fluid tube engraved on one surface, and having a substantially quadrangular planar shape.
- the embedding groove is changed in direction at one end of the plate-like body, and formed at the other end of the plate-like body so as to form an opening that opens on the wall surface of the widthwise end portion of the adjacent plate-like body.
- a deep groove embedded in the fluid tube connected to the opening of the wall surface at the end in the width direction of the plate-like body is formed, and the plurality of plate-like bodies have gaps at the ends in the width direction of each other.
- a continuous fluid tube is embedded in the above-mentioned buried groove, and a thin plate material is stuck on this surface so that the fluid tube does not come off the buried groove force.
- the body is connected by a fluid tube exposed between the openings in the wall at the end in the width direction.
- Foldable radiating member is disclosed is. As shown in Fig. 17A, the two units to be folded are connected so that the fluid piping is exposed by opening a space, and the exposed fluid piping is bent and folded as shown in Fig. 17B. That's it.
- this heat radiating member has a problem that the fluid pipe is exposed from the unit when folded, and is transported in this state, so that the fluid pipe may be damaged.
- Patent Document 1 Japanese Patent Application Laid-Open No. 07-217920
- Patent Document 2 JP-A-10-89712
- Patent Document 3 Japanese Patent Laid-Open No. 11-281070
- Non-Patent Document 1 Edited by Society of Polymer Science, “Basics of Polymer Chemistry”, Tokyo Chemical Doujin, Chapter 4 (197 8)
- the present invention uses a thin plate-like body so that the initial warming is very fast, the thermal efficiency is high, and the running cost is low, and the overall thickness is 18 mm or less. It aims at providing the heating floor which is excellent also in soundproofing which does not have a sag or the like.
- the present invention is a heating floor having a plate-like body layer having a thickness of 11 mm and a mat layer made of a rigid foam in which fluid piping is incorporated, and the total thickness is 18 mm or less.
- the hard foam is a heated floor having a compressive yield stress of 0.5 MPa or more measured at room temperature and under a compression rate of lOmmZmin according to JIS K 7220.
- the present inventors have used a foam made of thermoplastic resin that has achieved a specific compressive yield stress by adopting a specific structure as a mat layer.
- the present invention has been completed by finding that it has excellent soundproofing that does not sag even when an 8mm plate layer is used, provides a highly efficient heated floor with a very fast initial warming, and low running costs. It came to do.
- the plate-like body has a thickness lower limit of lmm and an upper limit of 8mm. If it is less than 1 mm, the strength of the plate-like body will be insufficient, and if it is broken during transportation or immediately exceeds 8 mm, heat conduction will be inferior, and the thermal efficiency at the time of stabilization will be poor, since the initial warming is slow.
- the preferred lower limit is 2 mm and the preferred upper limit is 7 mm.
- the plate-like body preferably has a thermal conductivity of 0.08 WZ (m'K) or more. If it is less than 0.08 W Z (m'K), the heat conduction to the top will be poor, and the initial warming may be slow, or the thermal efficiency at the time of stability may be poor.
- the plate-like body is not particularly limited, and examples thereof include flooring, cork, tile, tatami mat, carpet, and decorative board. In general, wooden flooring is often used. Examples of such a flooring base material include natural wood such as cedar and cypress, and wood boards such as plywood, particle board, wafer board, and MDF.
- laminates of surface decorative materials such as veneers, synthetic resin sheets, synthetic resin foam sheets, decorative paper, synthetic resin impregnated sheets, and decorated with wood grain or marble tone. It can. Furthermore, printing, painting, coloring, coating, grooving, and the like may be performed to impart designability, wood texture, scratch resistance, and the like.
- a protruding plate When a protruding plate is bonded to the front surface, it is preferable to bond a plate, paper or the like to the back surface for the purpose of preventing warpage.
- a wood powder or a composite material of a piece of wood and rosin can also be suitably used.
- synthetic wood, synthetic resin, and their laminates in which wood chips, wood flour, wood chips, etc., are filled with synthetic resin, etc., have high dimensional stability due to small dimensional changes due to moisture absorption and release. .
- the wood powder or wood piece means a woody granular material or powdery material obtained by pulverizing waste wood or natural wood.
- the size of the wood powder or piece of wood is not particularly limited, but the preferred upper limit is 10 mm from the viewpoint of ease of mixing with rosin, the shape of the material, the distribution of physical properties, and the like.
- the resin is not particularly limited, and examples thereof include polyolefin resin such as polyethylene and polypropylene; polystyrene, acrylic resin, ABS, and elastomer.
- the preferable lower limit of the blending amount of the wood flour or wood piece in the wood powder or wood chip and rosin composite is 20% by weight, and the preferred upper limit is 90% by weight. If it is less than 20% by weight, excellent properties such as the texture of the resin may not be obtained, and if it exceeds 90% by weight, high dimensional stability may not be obtained.
- the above-mentioned composite material of wood powder or wood piece and rosin may contain acid-modified polypropylene, low-density polyethylene or the like for the purpose of increasing the affinity between the synthetic resin and wood powder.
- It may contain an external lubricant such as zinc phosphate.
- the method for producing the above-mentioned wood powder or a composite material of wood pieces and rosin is not particularly limited.
- the constituent synthetic resin and wood powder are supplied to an extruder, melt-kneaded, and then plate-shaped. Cooling while shaping with the mold of the above; supplying the synthetic resin and wood powder, etc., to the injection molding machine, melting and kneading, and injecting into the plate mold; cooling; After the wood powder is supplied to the extruder, melted and kneaded, the softened plate-like body extruded from the mold has a clearance narrower than the thickness of the plate-like body and rotates in a different direction.
- Method of introducing and cooling to cooling roll supplying the synthetic resin and wood powder, etc., to the extruder, melting and kneading, and then introducing the softened plate-like body extruded from the mold into the cooling water tank
- a method of cooling while shaping with a mold provided in the tank may be mentioned.
- the plate-like body a material that is also composed of a thermoplastic resin, an inorganic filler dispersed in the thermoplastic resin, and an inorganic resin composite material is also suitable.
- a plate-like body made of such an inorganic resin composite material is excellent in both dimensional stability against temperature changes and dimensional stability against humidity changes.
- thermoplastic resin constituting the inorganic resin composite is not particularly limited.
- polyethylene resin, polypropylene resin, polysalt vinyl resin, polystyrene resin examples thereof include polyester-based resins such as fat, polyacrylic resin, ABS resin, and polyethylene terephthalate resin.
- polyester-based resins such as fat, polyacrylic resin, ABS resin, and polyethylene terephthalate resin.
- thermoplastic rosins may be used alone or in combination of two or more.
- the inorganic filler constituting the inorganic resin composite is not particularly limited, and examples thereof include my strength, talc, alumina, calcium carbonate, barium sulfate, and wollastonite. Of these, talc and calcium carbonate are preferred because of their excellent dispersibility and low cost.
- the lower limit of the filling amount of the inorganic filler in the inorganic resin composite is 30% by weight, and the upper limit is 80% by weight. If it is less than 30% by weight, the dimensional stability against temperature change is insufficient, and if it exceeds 80% by weight, it becomes brittle and cracks and chips are likely to occur.
- Preferred V, lower limit is 50% by weight, preferred upper limit is 70% by weight.
- the plate-like body is provided with a concave groove extending in an arbitrary direction on a surface laminated with the hard foam. May be. Thereby, the bending rigidity of the said plate-shaped body can be reduced and soundproofing can be improved.
- the shape of the groove is not particularly limited, and examples thereof include a U shape, a V shape, and a U shape.
- the groove width of the concave groove is not particularly limited, but is preferably about 15 mm.
- the plate-like body may be subjected to tongue processing or the like as shown in the combination!
- Examples of the part include a book-like structure in which the recommended part is clarified, and an agile structure.
- the mat layer is made of a hard foam in which fluid piping is incorporated.
- the fluid pipe is a path through which hot water or antifreeze liquid heated by a heat source flows.
- the above-mentioned fluid pipes flow as long as hot water flows without leakage and function as a radiator
- the case where the mat layer itself is processed and used as a flow path is included.
- Examples of the fluid piping include heat-resistant polyethylene, crosslinked polyethylene, polypropylene, polybutene and the like, a resin tube having the same strength; a copper tube having the same strength; a metal-reinforced resin tube having a metal layer and a resin layer, and the like. Preferably used.
- the hard foam constituting the mat layer has a compressive yield stress of 0.5 MPa or more measured under a compression speed of lOmmZmin according to JIS K 7220. If the pressure is less than 0.5 MPa, a sag occurs when the local load is strong.
- the rigid foam constituting the mat layer is JIS K 7221-2 compliant, the lower limit of the flexural modulus measured at 23 ° C and 50% RH is lMPa, and the upper limit is lOOMPa. It is preferable. If it is less than IMPa, the mat layer is too flexible and not easy to handle, and the elastic modulus in the compression direction is also insufficient. A seasickness phenomenon may occur. If it exceeds lOOMPa, the flexibility and vibration control of the heated floor laminate, and thus the entire heated floor, may be reduced, and sufficient sound insulation may not be obtained.
- a more preferred lower limit is 3 MPa, and a more preferred upper limit is 90 MPa, even more preferred, a lower limit is 5 MPa, even more preferred! /, And a lower limit is 30 MPa.
- the flexural modulus is based on JIS K 7221-2, and a 9 mm thick sample is supported at a distance of 192 mm between fulcrums at 23 ° C and 50% RH. It is obtained from a displacement-stress curve when the vehicle is lowered at a speed.
- the rigid foam constituting the mat layer preferably has a thermal conductivity of 0.08 W / (m-K) or less.
- Exceeding 0.0WZ (m'K) may cause heat to be dissipated in areas other than the upper part, for example, in the lower part direction, resulting in a slow temperature rise or instable thermal efficiency.
- the rigid foam constituting the mat layer is preferably made of a resin having a glass transition point of 0 ° C or lower and a melting point of 90 ° C or higher.
- the glass transition point exceeds o ° c, the compression modulus of the resin itself is improved, but the impact resistance is reduced, and the foam with a thin cell wall is likely to be buckled or deformed, and the local If the load is repeatedly applied, it will sag.
- the melting point is less than 90 ° C, the floor may soften even under normal use conditions of the heated floor, and sufficient floor performance cannot be exhibited.
- Such a resin is not particularly limited, but creep phenomenon or the like hardly occurs under the operating temperature condition of the heated floor.
- a resin is not particularly limited, but creep phenomenon or the like hardly occurs under the operating temperature condition of the heated floor.
- polyolefin resin polyoxymethylene, polyvinyl methyl ether, Crystalline resin such as polyvinyl isobutyl ether is preferable, and polyolefin resin is more preferable.
- polyolefin resin means a (co) polymer of olefinic monomers.
- the polyolefin-based resin is not particularly limited.
- polyethylene such as low-density polyethylene, high-density polyethylene, and linear low-density polyethylene
- polypropylene such as homo-type polypropylene, random-type polypropylene, and block-type polypropylene.
- Ethylene such as polybutene, polybutylene, ethylene propylene copolymer, ethylene propylene-gen terpolymer, ethylene-butene copolymer, ethylene-butylene copolymer, ethylene-vinyl acetate copolymer, ethylene acrylate copolymer And the like.
- rosins may be used alone or in combination of two or more.
- the hard foam constituting the mat layer does not impair the characteristics of polyolefin resin such as light weight, chemical resistance, flexibility and elasticity, and affects the melt viscosity necessary for foaming.
- polyvinyl chloride, chlorinated polyvinyl chloride, ABS resin, polystyrene, polycarbonate, polyamide, polyvinylidene fluoride, polyphenylene sulfide, polysulfone Coffins such as styrene, polyetherketone, and copolymers thereof may be contained.
- a preferable lower limit of the expansion ratio of the hard foam is 2 times, and a preferable upper limit is 30 times. If it is less than 2 times, the thermal insulation performance is inferior and the cost is high, and if it is more than 30 times that is not practical, the cell wall thickness of the cell becomes thin and the compressive strength may be lowered.
- the hard foam made of the above resin and capable of exhibiting the above-mentioned mechanical performance is, for example, one foamed in the thickness direction (longitudinal cell type); one having a rib structure in the thickness direction (removable) ) And the like.
- the vertically long bubble type hard foam is foamed in the thickness direction, and the bubbles are vertically long in the thickness direction.
- Such a vertically long bubble type rigid foam when subjected to a compressive force in the thickness direction, exerts a force in the long axis direction of the spindle-shaped bubble, and thus has a high compressive strength and compression in that direction. Indicates the elastic modulus.
- the above-mentioned vertically long bubble type rigid foam has a ratio of the maximum diameter D of the contained bubbles in the direction perpendicular to the heating floor to the maximum diameter D in the direction parallel to the heating floor (D ZD: aspect ratio). ) Average z xy z xy
- the preferred lower limit of the value is 1.1 and the preferred upper limit is 4.0. 1. If it is less than 1, the bubbles are almost spherical, and the compression strength and compression modulus due to the spindle shape cannot be improved, and the deformation recovery after placing a heavy object on the floor for a certain time is insufficient. It becomes. In addition, the feeling of walking is poor because the floor is dented in the evaluation. 4. If it exceeds 0, it will be difficult to produce stably.
- FIG. 3 is a schematic diagram showing a cross section in the above-mentioned vertically long cell type rigid foam.
- the above aspect ratio is determined by randomly cutting a hard foam into an arbitrary plane parallel to the direction perpendicular to the heating floor (z direction), and taking an enlarged photograph of the cross section at a magnification of 10 times. It means the value obtained by measuring the maximum value in the direction perpendicular to the heating floor and the direction parallel to the heating floor, and calculating the number average value of at least 50 bubbles selected.
- the method for producing the above-mentioned vertically foamed type hard foam is not particularly limited.
- a face material having a strength capable of suppressing the foaming force in the in-plane direction of the original fabric is used as at least one side of the original fabric.
- a method of foaming by the chemical foaming method or the physical foaming method, which will be described later, is preferable. This is to suppress the foaming in the two-dimensional direction in the plane when foaming, in the thickness direction As a result, it is possible to obtain a foam having spindle-shaped bubbles in which the major axis is oriented in the thickness direction.
- a face agent that can withstand the environment above the foaming temperature of the foam material, for example, paper, cloth, wood, iron, non-ferrous metal, non-woven fabric, cold chill, glass
- a fiber, an inorganic fiber, a tetrafluoroethylene sheet or the like is laminated and then foamed.
- the rib-type hard foam has a rib structure in the thickness direction, and the rib is formed in a column shape, a wall shape, or the like in the thickness direction.
- a rib-type hard foam has an excellent property that it is not easily crushed against the compressive force in the thickness direction.
- the shape of the rib is not particularly limited as long as it is formed in a pillar or wall shape.
- a structure resistant to compression such as a hard cam structure, I steel, C steel, or a beam. Can be mentioned.
- the rib-type hard foam is not particularly limited.
- the rib-type hard foam includes a high foam part formed in a convex shape on at least one surface of a sheet-like continuous foam layer. The surface is covered with the continuous foam layer and the low foam layer, and recesses are formed between the adjacent high foam portions covered with the low foam layer to form irregularities. Is preferred.
- Such a rib-type hard foam is particularly difficult to crush against compressive force in the thickness direction.
- the high foam portion and the low foam layer are expressed as high! Or low! Comparing the foaming ratios of the high foam portion and the low foam layer. .
- the foaming ratio of the high foam part is preferably U, the lower limit is 2 times, and the upper limit is preferably 100 times. If it is less than 2 times, it becomes difficult to reduce the weight of the laminate for a heating floor laminate of the present invention obtained, and if it exceeds 100 times, the compression strength of the obtained rigid foam may be insufficient. is there.
- a more preferred lower limit is 5 times, a more preferred upper limit is 50 times, a still more preferred lower limit is 8 times, and a further more preferred upper limit is 35 times.
- the preferable lower limit of the expansion ratio of the low foam layer is 1.1 times, and the preferable upper limit is 10 times. 1. If it is less than 1 times, it becomes difficult to reduce the weight of the flooring material, and the soundproofing performance may deteriorate due to an increase in the elastic modulus. If it exceeds 10 times, the flooring material will sink. It increases the amount of intrusion, and it is easy to break when walking and placing heavy objects. A more preferred lower limit is 1.2 times, a more preferred upper limit is 7 times, and a more preferred upper limit is 5 times.
- the preferable lower limit of the expansion ratio of the continuous foamed layer is 1.1 times, and the preferable upper limit is 10 times. 1.
- a more preferred lower limit is 2 times, a more preferred upper limit is 8 times, and a more preferred upper limit is 7 times.
- FIG. 4 and FIG. 8 are schematic views showing a preferred example of the rib type hard foam.
- the rib-type hard foam 10 shown in FIG. 4 includes a continuous foam layer 20 made of polyolefin resin and a plurality of high foams made of polyolefin resin formed in a convex shape on at least one surface of the continuous foam layer 20. Part 30 and a low foam layer 40. The entire surface of the high foam portion 30 is covered with the continuous foam layer 20 or the low foam layer 40, and the low foam layer 40 between the adjacent high foam portions 30 is formed with a recess 41. As a result, irregularities are formed on the surface. Further, in the rib-type hard foam 10 shown in FIG. 3, the low foam layer 40 between the adjacent high foam parts 30 is heat-sealed to each other, but is not necessarily fused. Like the rib type hard foam shown in FIG. 6, the high foam parts 3 may be separated from each other.
- the surface of the continuous foam layer 20 is flat.
- a recess 32 is formed on the side in contact with the continuous foam layer 20, whereby a recess 22 is formed in the continuous foam layer 20.
- the rib-type hard foam 10 shown in FIG. 5 or FIG. 6 includes a plurality of high foam portions 30 having at least one surface formed in a convex shape, and is adjacent to a part of the side surface of the high foam. It is joined with the body part 30 (or separated without being joined) and joined to form a concave / convex shape by forming a crease (or a part separated without joining) into a void (or recess 41). It becomes the structure that has been formed.
- the preferable lower limit of the depth of the recess 22 is lmm, and the preferable upper limit is 5mm. If it is less than 1 mm, the buffering effect is improved. If it exceeds 5 mm, it may be difficult to develop high compressive strength. A more preferred upper limit is 5 mm.
- the plurality of high foam portions 30 are substantially uniform in a plane in the cross-sectional direction of the foam. It is preferable to arrange
- the aspect in which the plurality of high foam portions 30 are arranged substantially uniformly in a plane is not particularly limited.
- a plurality of high foam portions 30 are defined by the low foam layer 40 and arranged in a lattice pattern.
- the individual high foam parts 30 have a quadrangular prism shape, the surface smoothness of the hard foam 10 is good, and the compressive strength is sufficient.
- a plurality of high foam parts 30 are defined in a low foam layer 40 formed in a heart cam shape and arranged in a staggered manner.
- a plurality of hexagonal columnar high foam portions 30 are formed, and the wall surfaces of the adjacent high foam portions 30 become a low foam layer (low foam thin film) 40 at the time of heat-sealing.
- the surface-like hard foam 10 is obtained, the surface smoothness is improved, and the compressive strength is particularly excellent.
- Fig. 4 In the rib-type rigid foam 10 shown in Fig. 8, the plane direction of the high foam portion 30 is shown.
- the preferable lower limit of the maximum diameter (in the cross-sectional direction) is 3 mm, and the preferable upper limit is 50 mm. If it is less than 3 mm, it may be difficult to reduce the weight of the resulting laminate for a heated floor of the present invention. If it exceeds 50 mm, the compressive strength of the rigid foam 10 may be insufficient. . More preferred ⁇ Lower limit is 5mm, more preferred! /, Upper limit is 30mm.
- the preferred lower limit of the height of the high foam part 30 from the continuous foamed layer 20 is lmm. If it is less than lmm, sufficient buffering properties may not be exhibited. A more preferred lower limit is 2 mm, and a still more preferred lower limit is 3 mm.
- the size of the high foam part 30 need not be uniform and may be non-uniform.
- the preferable lower limit of the average thickness in the longitudinal section direction of the continuous foamed layer 20 is 100 ⁇ m, and the preferable upper limit is 5 mm. If it is less than 100 ⁇ m, a hard foam with high compressive strength may not be obtained. Then, it may be difficult to reduce the weight of the resulting laminate for a heated floor of the present invention.
- a more preferred lower limit is 300 m, a more preferred upper limit is 3 mm, a still more preferred lower limit is 500 m, and a further preferred upper limit is 2 mm.
- the thickness of the continuous foam layer 20 may not be uniform and may be non-uniform.
- the preferable lower limit of the filling rate is 30%, and the preferable upper limit is 95%. If it is less than 30%, sufficient buffering properties may not be obtained, and if it exceeds 95%, a rigid foam having high compressive strength may not be obtained.
- a more preferred lower limit is 50%, and a more preferred upper limit is 90%.
- a filling rate is dividing the mass of the resin foam 10 in the volume (bulk volume) calculated
- the method for producing the above rib-type hard foam is not particularly limited.
- a foamable resin composition (foamable resin composition) containing a foaming agent is foamed in a predetermined container, Producing a high-foamed body having an outer surface excluding one side covered with a low-foamed layer made of cocoa, and heat-sealing the low-foamed layer through the low-foamed layer.
- the method for preparing the thin film comprising the foamable resin composition is not particularly limited.
- the resin and the pyrolytic foaming agent are supplied to an injection molding machine, and the pyrolytic foaming agent is supplied.
- the foaming agent is supplied to the extruder and melt-kneaded at a temperature lower than the decomposition temperature of the pyrolytic foaming agent, the softened sheet-like body has a clearance narrower than the thickness of the sheet-like body.
- the thickness of the thin film composed of the foamable resin composition is not particularly limited and varies depending on the foaming ratio and thickness of the target rib-type hard foam, but the preferred lower limit is 0.05 mm, A preferred upper limit is 3 mm. If it is less than 05 mm, it may not be possible to retain a granular material having a foamable resin composition. If it exceeds 3 mm, the granular material composed of the foamable resin composition may move during foaming. The expansion in the width direction and the longitudinal direction may become large. A more preferred lower limit is 0.1 mm, and a more preferred upper limit is 2 mm to.
- the shape of the granular material composed of the foamable resin composition is not particularly limited, and examples thereof include a hexagonal body, a cylindrical shape, and a spherical body, and a cylindrical shape is preferable because foaming can be made uniform. It is.
- the preferred lower limit of the diameter of such a granular foamed resin composition is lmm, and the preferred upper limit is 30mm. If it is less than 1 mm, the cylinder may melt and deform due to heating during foaming, so that one-dimensional foaming properties may not be exhibited, resulting in large variations in thickness accuracy and weight accuracy, and reduced surface smoothness. If it exceeds 30 mm, the foaming speed may decrease.
- a more preferred lower limit is 2 mm, and a more preferred upper limit is 20 mm.
- the preferred lower limit of the height of the granular material having a cylindrical foamable resin composition strength is lmm, and the preferred height is 30mm. If it is less than 1 mm, it may expand greatly in the width direction and the longitudinal direction and a predetermined rib structure may not be obtained. If it exceeds 30 mm, the foaming speed may be reduced. A more preferred lower limit is 2 mm, and a more preferred upper limit is 20 mm.
- the arrangement method of the granular material comprising the foamable resin composition is not particularly limited, and may be uniform or non-uniform.
- the high foamed portion formed by foaming the individual foamable resin composition force particles has a quadrangular prism shape.
- the high foam portion has a hexagonal column shape, so that a pseudo honeycomb structure is formed.
- the distance of the granular material which is the strength of the foamable resin composition to be arranged, is not particularly limited because it varies depending on the foaming ratio, thickness, etc. of the desired rigid foam of the rib type!
- the preferred lower limit is 2 mm and the preferred upper limit is 50 mm. If it is less than 2 mm, it may be completely filled. If it exceeds 50 mm, the granular material made of the foamable resin composition has foamed. May be underfilled.
- a more preferred lower limit is 3 mm, and a more preferred upper limit is 30 mm.
- FIG. 9 is a schematic diagram for explaining an example of a method for producing the above rib-type hard foam.
- a thin film 200 made of a foamable resin composition granules (foamable resin columnar bodies) 300 made of a foamable resin composition are arranged with a substantially uniform spacing in a plane.
- a foamable resin sheet 100 is prepared.
- the thin film 200 is formed by connecting a plurality of foamable resin pillars 300 together.
- Fig. 10 is a schematic diagram for explaining a preferred example of a method for preparing the foamable resin sheet 100.
- a sheet-like body in a soft state is obtained by a method in which a foamable resin composition is melt-kneaded and extruded using an extruder or melted using a calender roll.
- a pair of shaping rolls that rotate in a different direction in which the softened sheet-like body has a clearance narrower than the thickness of the sheet-like body and a plurality of concave portions are uniformly arranged on at least one outer peripheral surface.
- 700 and 800 a part of the softened sheet is press-fitted into the recess, and then cooled and released.
- the concave portions on the outer peripheral surface of the shaping roll 700 are preferably arranged substantially uniformly in order to improve the mass accuracy and thickness accuracy of the target foamable resin sheet 100.
- the arrangement of the recesses on the outer peripheral surface of the shaping roll is not particularly limited as long as it is uniform on the entire outer peripheral surface of the shaping roll, but it is more uniform, so it may be arranged in a lattice or a staggered pattern. Most preferred.
- the shape of the concave portion on the outer peripheral surface of the shaping roll 700 is not particularly limited, and examples thereof include a hexagonal shape, a columnar shape, a spherical shape, and the like. Easily mold 300, point, release after cooling! , Easy, point force is also the most preferred cylinder.
- the clearance of the shaping roll 700 needs to be narrower than the thickness of the soft sheet. Within this range, there is no particular limitation because it varies depending on the shape of the target foamable resin sheet 100, but the preferred lower limit is 0.05 mm and the preferred upper limit is 3 mm. If it is less than 0.05 mm, the foamable resin thin film 200 tends to be broken at the time of releasing after cooling, and if it exceeds 3 mm, the foamable resin sheet 100 capable of one-dimensional foaming may not be formed. . A more preferred lower limit is 0.1 mm, and a more preferred upper limit is 2 mm. [0067] The method of press-fitting a part of the soft sheet into the recess is that the forming roll force is applied to the soft sheet by changing the clearance of the pair of shaping rolls. This is achieved with the pressure of
- the cooling method of the shaped softened sheet-like material that has been partially press-fitted is not particularly limited as long as it can be lowered below the melting point of the foamable resin composition.
- a method such as flowing cooling water inside can be mentioned.
- a rib-type hard foam can be obtained by heating and foaming the prepared foamable resin sheet 100 above the decomposition temperature of the foaming agent and cooling the resulting foam.
- the foamable resinous resin column 300 is foamed.
- 00 wall surfaces have a low foam layer due to foaming pressure.
- the low foam layer heat-bonds the high foam portions having a high foaming ratio inside the columnar body to form a low foam thin film.
- the thin film 200 also foams in the same manner, but becomes a continuous foam having a low foaming ratio because of its thin thickness and low cell retention.
- an appropriate method capable of heating the sheet-like body at a temperature higher than the decomposition temperature of the thermally decomposable foaming agent contained in the foamable resinous columnar body 300 can be used.
- the heating method include an electric heater, a far-infrared heater, and a heating device in which a heating medium such as heated oil or air is circulated.
- the foamed resin sheet 100 is cooled by a cooling device having a gap larger than that in which the foamed and expanded sheet-like body is completely filled.
- the cooling device is not particularly limited as long as it has a gap beyond that of the foam-expanded sheet-like body, and can be cooled to a temperature below the softening point of the resin constituting the foam.
- a cooling method using a cooling device that circulates a cooling medium such as cooled water or air is used. Togashi.
- the gap beyond which the foam-expanding sheet-like body is completely filled is a size calculated by the foaming magnification and mass isotropic force of the foamable resin sheet 100, but is obtained when the gap is too large. Since the entire hard foam is greatly undulated, it is preferable that the fully filled gap calculated from the foaming magnification, mass, etc. of the foamable resin sheet 100 plus 10 mm or less is preferable plus 5 mm or less. More preferably, it is 3 mm or less.
- the foamable resin composition used for the foamable resin columnar body 300 and the foamable resin composition used for the thin film 200 do not need to use the same resin, From the viewpoints of foamability and adhesiveness, it is preferable to use the same or the same type of resin. By using the same or the same type of resin, the fusion force between the continuous foam layer and the high foam part is increased, and the resulting rib-type hard foam breaks when a compressive load is applied.
- a device for efficiently transferring the heat of the fluid flowing through the fluid piping to the floor surface side is provided. That is, it is preferable that a metal foil shaped into a groove shape is provided in a groove into which the rigid foam fluid piping constituting the mat layer is formed, or that the fluid piping has an outer layer serving as a metal foil.
- the metal foil is not particularly limited as long as it has excellent thermal conductivity, and examples thereof include iron, brass, copper, stainless steel, aluminum, titanium, and a silver alloy. Of these, copper and aluminum are preferable from the viewpoints of price and workability, and are less likely to cause corrosion and the like. Aluminum is more preferable.
- the thickness of the metal foil is preferably 20 ⁇ m and the upper limit is 400 ⁇ m when it is placed in the groove into which the fluid pipe is incorporated. If the thickness is less than 20 ⁇ m, the heat transfer effect may not be obtained to a sufficient floor surface. If the thickness exceeds 400 m, the thickness of the mat layer in the groove cannot be secured sufficiently, and a thick metal foil cannot be used. Insert and the elastic modulus of the entire mat layer will increase. The soundproofing may be inferior in combination with that.
- the metal foil in this case can be arranged by, for example, inserting a metal foil shaped into a groove shape as shown in FIG. 11 into the groove of the mat layer.
- a preferable lower limit is 10 m and an upper limit is 200 ⁇ m. If the thickness is less than 10 ⁇ m, a sufficient heat conduction effect may not be obtained on the upper surface of the floor. If the thickness exceeds 200 / zm, the thickness of the mat layer in the groove cannot be secured sufficiently, and a thick metal foil is not used. In combination with the increase in the elastic modulus of the entire mat layer, the soundproofing property may be inferior.
- the mat layer is provided with at least one surface asperity processing or slit force. Thereby, a high soundproofing property can be exhibited. In addition, by applying unevenness or slitting, it is easy to follow along unevenness while having high compressive strength and bending strength. It can be demonstrated.
- the concavo-convex processing or slit processing may be performed only on one surface of the mat layer, or may be performed on both surfaces, but it is easy to stack with the other layer. It is preferred to be given only to! /.
- the unevenness processing method is not particularly limited, and examples thereof include cutting processing such as router processing, embossing and the like. Of these, embossing is preferred because it can be processed without cutting the face material, so that it can suppress a decrease in strength.
- the embossing means imparting a concavo-convex shape (hereinafter also referred to as an embossed pattern) to the surface by strongly pressing a concavo-convex plate or roll on the surface of the resin foam.
- the embossing method is not particularly limited. For example, a method of heat-pressing using a mold having an embossing pattern; a material is passed between rolls that have been embossed, and the embossing process is continuously performed. The method of doing is mentioned.
- an embossing roll may be provided on only one side, with one side being an embossing roll and the opposite side being passed between smooth rolls.
- the heating floor of the present invention preferably has a heat dissipation layer between the plate-like layer and the mat layer.
- the heat dissipation layer is not particularly limited as long as it has excellent thermal conductivity.
- aluminum and its alloys, iron, steel, copper and its alloys, and the like are suitable.
- the thickness is not particularly limited, but the preferred lower limit is 10 m and the preferred upper limit is 3 mm. If it is less than 10 m, it is difficult to construct without causing wrinkles and the like, and if it exceeds 3 mm, soundproofing may be impaired.
- a more preferred lower limit is 20 m, and a more preferred upper limit is lmm.
- a soft layer on the surface of the matte layer opposite to the plate-like body layer for the purpose of improving soundproofing.
- the soft layer By having the soft layer, an appropriate walking comfort and higher soundproofing properties can be exhibited.
- the mat layer is made of the rib-type hard foam, these effects are remarkable.
- the said hard layer is good also as one of the layers which comprise the heating floor of this invention, and may be installed in the lower surface of the heating floor of this invention separately from the heating floor of this invention. .
- the soft layer is not particularly limited, and examples thereof include soft foams such as foamed polyethylene, foamed polyurethane, foamed polypropylene, and foamed polystyrene; Among them, polyurethane foam is suitable because it has a particularly high soundproofing effect. Also, when the soft layer is installed directly on the floor base material, the floor base is used for the purpose of improving the adhesion to the floor base material. It is preferable to stick a closed cell foam such as a cross-linked polyolefin foam on the surface in contact with the material. Such a closed-cell foam improves the adhesion to the floor base material and also has an effect as a water-stopping layer.
- soft foams such as foamed polyethylene, foamed polyurethane, foamed polypropylene, and foamed polystyrene
- polyurethane foam is suitable because it has a particularly high soundproofing effect.
- the floor base is used for the purpose of improving the adhesion to the floor base material
- the soft layer is opposite to the mat layer. It is preferable to further have a hard layer having a compressive yield stress of 0.5 MPa or more and a thermal conductivity of 0.08 W / (m-K) or less on the side surface.
- a hard layer having a compressive yield stress of 0.5 MPa or more and a thermal conductivity of 0.08 W / (m-K) or less on the side surface.
- the hard layer is not particularly limited, but the same hard foam as that constituting the mat layer can be suitably used.
- those made of polyolefin resin having a glass transition point of 0 ° C. or less and a melting point of 90 ° C. or more are suitable, and the maximum diameter D in the direction perpendicular to the heating floor of the contained bubbles is Warm
- xy z xy 1 4.0 hard foam hard foam; rigid foam having a rib structure in the thickness direction; a high foam part formed convexly on at least one side of the sheet-like continuous foam layer And the entire surface of the high foam part is covered with the continuous foam layer and the low foam layer, and recesses are formed between adjacent high foam parts covered with the low foam layer, thereby forming irregularities.
- a rigid foam having a rib structure in the formed thickness direction is preferably used.
- FIGS. 1 and 2 are schematic views showing an example of the heating floor of the present invention.
- a heating floor 1 shown in FIG. 1 includes a plate-like body layer 2, a heat radiation layer 4, a mat layer 3, a soft layer 5, and a hard layer 6.
- a fluid pipe 7 is disposed in the mat layer 3.
- a metal foil 8 shaped into a groove shape is installed, and the metal foil 8 is connected to the heat release layer 4.
- a heating floor 1 ′ shown in FIG. 2 includes a plate-like body layer 2, a heat radiation layer 4, a mat layer 3, a soft layer 5, and a hard layer 6, and a fluid pipe 7 is disposed in the mat layer 3.
- the fluid pipe 7 has an outer layer 8 ′ made of a metal foil, and the metal foil 8 ′ is connected to the heat dissipation layer 4.
- the plate-like body layer, the heat dissipation layer, the mat layer, the soft layer, and the hard layer may be fixed to each other by bonding, screws, nails, or the like, or laminated at the time of construction. May be.
- construction is easy because each layer is extremely lightweight.
- a construction method of a soundproof heating floor in which a hard layer, a soft layer, a mat layer, a heat dissipation layer, and a plate-like body layer are laminated in this order on the work surface is also one aspect of the present invention.
- the construction surface means a slab made of reinforced concrete such as reinforced concrete (RC), lightweight cellular concrete (ALC), etc., or a floorboard constructed on joists etc. ) Etc.
- RC reinforced concrete
- ALC lightweight cellular concrete
- Etc floorboard constructed on joists etc.
- the mat layer has an appropriate flexibility and an appropriate elastic modulus
- a thin plate-like body layer is used to reduce the overall thickness. Regardless, the amount of subsidence during walking is small and the walking feeling is good.
- it integrates a soft layer with excellent soundproofing properties to achieve high soundproofing performance.
- a hard layer with high thermal insulation is used as the lower layer, high thermal insulation efficiency is exhibited even when placed directly on slab concrete, even when a relatively low temperature hot water heat source of about 55 ° C or less is used. The performance as a heated floor can be fully demonstrated.
- the present invention 2 is a heating floor comprising a plurality of radiator units provided with fluid piping grooves, and fluid pipes arranged in the fluid piping grooves and connecting between the radiator units.
- the thermal unit is intersected with the groove for fluid piping at the joint end with another adjacent radiator unit, and when the two radiator units are folded so that the fluid piping is on the inside,
- a foldable heating floor having a storage groove for storing a fluid pipe.
- the foldable heating floor (hereinafter also simply referred to as "heating floor") according to the second aspect of the present invention includes a radiator unit and a fluid pipe.
- the heat radiating unit is not particularly limited as long as it has the material strength conventionally used for heating floors.
- the heat radiating unit is composed of a laminate of a base material made of hard foam and the like and a plate-like body. Etc. Further, a laminate comprising a mat layer and a plate-like layer used for the heating floor of the present invention is also suitable, and the heat dissipation layer, the flexible layer and the hard layer may be laminated, or the metal You may have foil etc.
- the radiator unit is provided with a fluid piping groove for arranging the fluid piping.
- the individual heat dissipating units are connected by the fluid piping arranged in the fluid piping groove.
- the heat dissipating unit intersects the above-described fluid piping groove for accommodating the fluid piping when the two heat dissipating units are folded at the joint end with another adjacent heat dissipating unit. Has a storage groove.
- FIG. 12 is a schematic diagram showing an example of the heating floor according to the second aspect of the present invention.
- the features of the heating floor of the present invention will be described with reference to FIG.
- the heating floor shown in Fig. 12 includes two radiator units, namely, radiator unit 1 and radiator unit 1000 '.
- Each heat radiating unit is provided with fluid piping grooves 2000 and 2000 ′, and fluid piping 3000 is disposed in the fluid piping grooves 2000 and 2000 ′ (FIG. 12A).
- the radiator unit 1000 and the radiator unit 1000 ' are connected to each other by a fluid pipe 3000 at the X site.
- the heat medium flowing in from the fluid inflow port 3100 flows through the heat pipe 1000 through the heat discharger unit 1000, and then flows through the heatsink unit 1000 ′ and is then discharged from the fluid discharge port 3200. Thereby, heat is conducted from the heat medium to the radiator unit 1000 and the radiator unit 1000 ′, and floor heating can be performed.
- FIG. 12B shows an enlarged view of the X site.
- the radiator unit 1000 and the radiator unit 1000 ′ are provided with fluid piping grooves 2000 and 2000 ′, respectively, and two radiator units are provided by the fluid piping 3000 disposed in the fluid piping grooves 2000 and 2000. Are connected.
- Each radiator unit is provided with storage grooves 4000 and 4000 ′ that intersect the fluid piping grooves 2000 and 2000 ′ at the joint end with the other adjacent radiator units.
- the storage grooves 4000 and 4000 ′ have a function of storing the fluid pipe 3000 when the two heat dissipating units are folded so that the fluid pipe 3000 is inside.
- Fig. 13 shows a schematic diagram showing a state when the radiator unit 1000 and the radiator unit 1000 are folded so that the fluid piping 3000 is located inside.
- Fig. 13A is a perspective view of the X part in the folded state when the directional force perpendicular to the radiator unit is also seen.
- Fig. 13B shows the X part in the folded state in a direction parallel to the radiator unit.
- the fluid pipe 3000 is folded so as to be twisted diagonally, so that the stress applied to the fluid pipe 3000 is kept extremely small, and the radiator unit 1000 1000 and radiator unit 1000 'can be folded compactly.
- the folded fluid pipe 3000 does not protrude outside the heat radiating unit 1000 and the heat radiating unit 1000 ', and therefore is not damaged during transportation.
- it since it can be restored to its original state simply by expanding the folded radiator unit, it can be constructed very easily and there is no need to embed fluid piping at the construction site.
- the fluid piping groove and the storage groove preferably form an angle of 15 ° to 60 ° with respect to the joint end. If the angle is less than 15 °, the distance to the groove for folding the fluid pipe and the groove for storing and the distance to the folded groove for storage will be very short, which may impair the strength of the radiator unit. In addition, the open part formed on the side surface of the folded end may be large, and the exposure of the fluid piping may be large. If the angle exceeds 60 °, the fluid pipe may be bent at an angle smaller than the minimum bending radius of the fluid pipe when folded.
- the fluid piping groove and the storage groove are formed at a symmetrical angle with respect to the joining end portion.
- the length of the storage groove is not particularly limited, but a preferable lower limit of the length from the joining end is 2 cm. If it is less than 2 cm, the heated floor may not be folded as described above. A more preferred lower limit is 3 cm.
- the upper limit is not particularly limited, but the preferred upper limit is 5 cm. Even if the length exceeds 5 cm, it does not contribute to the function of the present invention, and the basic function as a heating floor such as heat insulation and sound insulation may be impaired.
- the heat dissipating unit is provided with a tube stopping mechanism for fixing the fluid piping within 50 mm from the folded end.
- a tube fixing mechanism for fixing the fluid piping within 50 mm from the folded end.
- the tube fastening mechanism is not particularly limited, and examples thereof include a claw-like member.
- a hot water floor heating system can be constructed by connecting a heating floor or a foldable heating floor of the present invention and an appropriate heat source.
- the heat source is not particularly limited, but it is preferable to use a heat source that discharges hot water at a temperature of 55 ° C or lower.
- most of the heat sources that can be combined are heat sources that generate hot water at a temperature of 60 ° C or higher. When such heat sources are used, there are many heat losses and high running costs. There was a problem.
- the heating floor and the like of the present invention are extremely excellent in thermal efficiency and heat dissipation, so that sufficient comfort can be obtained even when combined with a heat source that produces hot water at a temperature of 55 ° C or lower, greatly reducing running costs. be able to. It is preferably combined with a heat source that discharges hot water at a temperature of 50 ° C or lower.
- the heating floor of the present invention or a hot water type floor heating system connected to the foldable heating floor of the present invention using a heat source that discharges hot water at a temperature of 55 ° C. or lower is also one aspect of the present invention.
- a heat pump water heater or a waste water utilizing water heater is also suitable.
- the heat pump water heater means a water heater of the type that uses adiabatic compression of refrigerant and exchanges heat of vaporization to take out hot water or a heat medium, and has a circulation pump for heating.
- Multifunctional heat pump water heater and floor heating integrated air conditioner are included.
- the refrigerant include chlorofluorocarbon compounds, hydrocarbon compounds, carbon dioxide, and the like.
- the heat pump water heater absorbs not only the input energy but also natural heat energy to produce hot water, so the so-called coefficient of performance is 2-4, and it is extremely excellent in thermal efficiency. In addition, while the combustion water heater does not exceed 100% thermal efficiency, the environmental impact is very small.
- the waste water-utilizing water heater is, for example, discharged during power generation by a generator. It means a water heater that effectively uses heat in the form of hot water, and examples thereof include a micro gas engine cordage energy system, a micro gas turbine cordage energy system, and a fuel cell. Waste water-utilizing water heaters are a cogeneration system and are one of the most efficient water heaters.
- Heat pump water heaters were known as waste heat utilization water heaters, but they were limited in the temperature and heat dissipation energy of hot water that could be obtained with low instantaneous capacity. As a heat source for conventional heating floors, it was almost never used. Since the heating floor and the like of the present invention are extremely excellent in thermal efficiency and heat dissipation, even if these heat sources are used, sufficient heating capacity can be exhibited, so that both environmental load reduction and comfort can be achieved.
- a hot water type floor heating system that uses a heat pump type hot water heater or a waste water type hot water heater as a hot water heat source and is connected to the heating floor of the present invention or the foldable heating floor of the present invention is also one of the present inventions. It is.
- a thin plate-like body is used so that the initial warming is very fast, the thermal efficiency is high, and the running cost is low, and the overall thickness is 18 mm or less. Therefore, it is possible to provide a heating floor that is excellent in soundproofing.
- a plywood having a thickness of 3 mm and a length and width of 900 ⁇ 150 mm was used.
- a BT40 (Plastics Engineering Laboratory Co., Ltd.) co-rotating twin screw extruder was used as the modification screw extruder. This is equipped with a self-wiping double thread, L / D is 35 and D is 39mm.
- the cylinder barrel has a first to sixth barrel force from the upstream side to the downstream side of the extruder, and the die is a three-hole strand die. A vacuum vent is installed.
- the operating conditions were as follows.
- a polyolefin-based resin and a rear end hopper are charged into the modification screw extruder having this structure, and a third barrel force mixture of dibutenebenzene and organic peroxide is injected into the extruder.
- the mixture was melt-mixed to obtain a modified coffin.
- the volatile matter generated in the extruder was evacuated by a vacuum vent.
- polystyrene resin a polypropylene random copolymer (“EX 6” manufactured by Nippon Polychem, MI; 1.8, density; 0.9 gZcm 3 ) was used, and its supply amount was lOkgZh.
- Dibutene benzene was used as the denaturing monomer, and the amount supplied was 0.5 parts by weight per 100 parts by weight of polyolefin resin.
- organic peroxide 2,5 dimethyl-2,5-di (t-butylperoxy) hexyne 3 was used, and its supply amount was 0.1 weight per 100 parts by weight of polyolefin resin. The part.
- Modified modified resin obtained by melt blending of polyolefin resin, dibutenebenzene and organic peroxide was discharged from a strand die, cooled with water, and cut with a pelletizer to obtain modified resin pellets.
- the screw extruder for kneading the foaming agent is TEX-44 type (manufactured by Nippon Steel Works), the same direction rotating twin screw extruder, which is equipped with a self-wiping twin screw and its LZD is 45.5, D Is 47mm.
- the cylinder barrel is the first to 12th barrel from upstream to downstream of the extruder, and the forming die is a 7-hole strand die.
- the temperature setting category is as follows. The first barrel is always cooled.
- Zone 4 die and part of adapter A side feeder is installed in the 6th barrel to supply the blowing agent, and a vacuum vent is installed in the 11th barrel to collect volatiles.
- the operating conditions are as follows. • Cylinder barrel set temperature: Zone 1; 150 ° C
- the foamable resin composition thus obtained by kneading the modified resin and the foaming agent was extruded from a T-die to obtain a sheet-like molded product having a width of 1000 mm and a thickness of 0.5 mm.
- the compression yield stress was measured at 0.8 MPa and the compression modulus was 24 MPa when the compression yield stress was measured at room temperature and compression speed lOmmZmin according to JIS K 7220.
- the flexural modulus was measured under the conditions of 23 ° C and 50% RH in accordance with JIS K 7221-2.
- the hard foam obtained was cut to 1800 x 900mm, and then grooved by a hot press at a pitch of 75mm (width, depth 7.2mm), width 7.2mm, depth 7.2mm
- the matte layer was formed by grooving the groove for fluid piping at a pitch of 75 mm.
- the obtained mat layer was fixed with an adhesive to the center portion of the plywood having a thickness of 12 mm so that the groove portion was on top.
- the remaining part of the periphery of the plywood was laid with hard foam without grooves.
- a crosslinked polyethylene pipe (Sekisui Chemical Co., Ltd., 5A) was placed in the groove of the mat layer.
- An aluminum adhesive tape with a thickness of about 50 m was pasted on the entire surface of the grooved polystyrene foam as a heat-dissipating layer, and a plate-like body layer was fixed on it with double-sided tape and spread.
- a mold temperature controller was connected to the cross-linked polyethylene pipe (Sekisui Chemical Co., Ltd., 5A) via a cross-linked polyethylene pipe with a sheath pipe (Sekisui Chemical Co., Ltd., 7A) to complete the heating floor.
- a heat flux meter was installed on the upper and lower surfaces of the floor heating, and the heat dissipation efficiency on the upper surface was measured from the heat flux 10 minutes after the start of heating.
- the hot water temperature from the mold temperature controller and the hot water inflow temperature of the heating floor were measured, and the temperature difference was defined as the heat loss.
- the maximum value of the gap in the longitudinal direction between the flooring materials was measured using a clearance gauge, and this was used as the amount of eye clearance.
- the amount of sinking is good when the sinking amount is 1. 4-2. 6 mm, and if it is 4 mm or more, it causes a frustrating discomfort during walking, and Omm is said to cause pain in the soles of the feet as if walking on concrete. .
- the light floor impact noise level was measured by a method based on JIS A1418, and the sound insulation grade was evaluated.
- the floor heating was not laid!
- the thickness of the other room! / was separately installed in a flat plywood shape and evaluated according to the following criteria.
- A Barrier-free with a room that does not require floor heating that requires thickness adjustment.
- ⁇ Barrier-free with little thickness adjustment.
- X Thickness adjustment becomes complicated in order to be barrier-free.
- Example 2 The same heating floor as in Example 1 was evaluated except that the temperature of flowing hot water was set to 70 ° C.
- SO-20 as a pyrolytic foaming agent It was melt-kneaded at 180 ° C (diameter: 44 mm), and a sheet-like foamable thermoplastic resin in a softened state was extruded through a T-die with a surface length of 300 mm and a lip of 1.5 mm.
- a foamed thermoplastic resin sheet having a diameter of 250 mm and a surface length of 300 mm, in which recesses having a height of 5 mm and a diameter of 4 mm are arranged in a staggered manner only on the shaping roll 700.
- the foamed thermoplastic resin sheet as shown in Fig. 9 is cooled by shaping the body and immersed in hot water at 98 ° C for 2 hours and then dried. The product (crosslinking degree 15%) was obtained.
- the foamable thermoplastic resinous granules are formed in the portion corresponding to the concave portion of the shaping roll, and the foamable thermoplastic resinous granules are the same.
- the foamed thermoplastic resin sheet was formed as a whole by being connected by a foamable thermoplastic resin thin film having a thickness of 0.4 mm at the ends.
- the obtained foamable thermoplastic resin sheet is supplied to an endless belt having a heating device in a state of being placed on a polytetrafluoroethylene sheet, and the foamable thermoplastic resin sheet is obtained.
- a heating device By heating above the decomposition temperature of the foaming agent and foaming it, as shown in Figure 4 A rigid foam was obtained.
- the feeding speed of the foamable thermoplastic resin sheet was 0.5 mm / min, the heating device length was 5 mm, and the temperature was 210 ° C.
- the cooling device was 5mm long and 30 ° C in temperature.
- the thickness of the hard foam obtained was 9 mm.
- a heated floor was produced in the same manner as in Example 1 except that a mat layer was prepared by using the obtained hard foam, and a similar evaluation was performed.
- High density polyethylene manufactured by Japan Polychem Corporation, trade name "HY340”
- MI 1. 5gZlO min
- silane grafted polypropylene Mitsubishii ⁇ Co., Ltd. under the trade name "XPM800H”
- MI l lgZlO minutes
- gel fraction 80% by weight of the crosslinked 20 wt%
- polypropylene manufactured by Japan Polychem Corporation, trade name “MA3”
- melt index (MI) 1 is also lgZlO min) 30 weight 0/0 power thermoplastic ⁇ ( P1) 100 parts by mass, azodicarbonamide (Otsuka Chemical Co., Ltd., trade name: SO-20, decomposition temperature 210 ° C) 4.5 parts by mass and dibutyltin dilaurate as silane crosslinking catalyst 0.1
- the composition containing parts by mass is supplied to a twin screw extruder 5 having a diameter of 44 mm, the composition is melt-kneaded at
- a cylindrical concave force forming roll having a depth of about 10 mm and a diameter of 4 mm is formed in a staggered manner only on a forming roll 700 having a diameter of 250 mm and a surface length of 500 mm.
- the sheet foam thermoplastic resin is cooled while shaping, and then the sheet foam thermoplastic is immersed in 98 ° C water for 2 hours and then dried.
- An average of 4.2 mm, a standard deviation of 1 mm, and a columnar foamable resinous columnar part with a diameter of 4 mm were obtained in a staggered form.
- the foamable resin columnar parts were connected by a foamable resin thin film.
- the foamable resin sheet obtained was cut to 300 x 900 mm, placed on the polyfluorinated styrene sheet, and further placed on the upper surface of the fluorinated chilled sheet, and the distance between the polyfluorinated chilled sheets was 9 mm by hand press.
- the foam was heated and foamed at 210 ° C for 10 minutes so as to have a thickness, and then cooled with a cooling press at 30 ° C for 10 minutes to obtain a concavo-convex resin foam having an expansion ratio of 9 times and a thickness of 9 mm. Furthermore, adjust the thickness of this foam with an electric planer to 8.5 mm.
- corrugated resinous foam was obtained.
- the obtained foamed resin has a high foam part that is arranged in a convex shape on one surface of the continuous foam layer of the plate-like body, and the surface of the high foam part is low together with the continuous foam layer. It was covered with a foam layer. Irregularities were seen on the other side.
- Adhesive was applied to the high foamed portion of the resulting foamed resin foam, which was placed in a convex shape, and a 2.5 mm urethane foam was applied as a flexible layer to a total of 11 mm.
- a heated floor was produced in the same manner as in Example 1 except that this was used for the mat layer, and the same evaluation was performed.
- the composition was melt-kneaded at 180 ° C., and a sheet-like resin in a soft state was extruded with a T-die having a surface length of 160 mm and a lip of 3. Omm.
- a sheet-like resin was introduced into a cooling water tank having a mold that had a desired shape, and after cooling, a plate-like body having a thickness of 3. Omm was obtained.
- a heating floor was produced in the same manner as in Example 1 except that the obtained plate was used as the plate layer, and the same evaluation was performed.
- Example 1 Embossing was performed on both surfaces of a 9 mm-thick hard foam obtained in the production of the mat layer by a heat press (95 ° C) using a mold having an emboss pattern, A hard foam with embossed on both sides was obtained. As shown in Fig. 18, the embossed pattern dimensions of the resulting rigid foam with double-sided embossing were 2 mm deep, 3 mm wide, 5 mm long, and 6 mm pitch.
- Adhesive is applied to the resulting hard foam with double-sided embossing, and a 3mm-scale elastic layer is applied. Tan foam was affixed to a total thickness of 12 mm.
- a heated floor was produced in the same manner as in Example 1 except that this was used for the mat layer, and the same evaluation was performed.
- a heating floor was produced in the same manner as in Example 1 except that 9 mm plywood was used instead of 3 mm plywood as the plate-like body layer, and the same evaluation was performed.
- a heating floor was manufactured in the same manner as in Example 1 except that 12 mm plywood was used instead of 3 mm plywood as the plate-like body layer, and the same evaluation was performed.
- a heated floor was produced in the same manner as in Example 1 except that a mat layer was prepared using a polystyrene foam (expanding ratio 20 times, thickness 9 mm) as a hard foam, and the same evaluation was performed. It was.
- a mat layer was prepared using three layers of cross-linked polypropylene foam (Sekisui Chemical Co., Ltd., Softlon; foaming ratio 30 times, thickness 3 mm) as a hard foam.
- a heated floor was manufactured in the same manner as in Example 1, and the same evaluation was performed.
- a warming floor was produced in the same manner as in Example 1 except that medium density wood fiberboard (MDF) was used as the mat layer, and the same evaluation was performed. The results are shown in Table 2.
- MDF medium density wood fiberboard
- a heated floor is manufactured in the same manner as in Example 1 except that a commercially available sound insulation flooring (Matsushita Electric Works, 9mm finishing material + 4mm non-woven fabric) with a thickness of 13mm is used instead of the 3mm plywood as the plate-like body layer. The same evaluation was performed.
- a 100 / xm thick aluminum metal foil that was pre-shaped into a “U shape” in line with the groove for running water piping shown in Fig. 11 was inserted into the straight section except the curved section. Thereafter, a heated floor was produced in the same manner as in Example 4 except that a cross-linked polyethylene pipe (Sekisui Chemical Co., Ltd., 5A) was placed in the groove to form a mat layer, and the same evaluation was performed. .
- a heated floor was manufactured in the same manner as in Example 4 except that it was inserted into the groove for fluid piping, and the same evaluation was performed. The results are shown in Table 3.
- Example 3 A heating floor was manufactured in the same manner as in Example 4 except that the 9 mm-thick rigid foam used in Example 1 was placed on the lower surface of the heating floor manufactured in Example 4, and the same evaluation was performed. .
- the results are shown in Table 3.
- the obtained two laminates are arranged side by side, and a groove for fluid piping having a width of 7.2 mm and a depth of 7.5 mm having a shape shown in FIG.
- a radiator unit was prepared with an angle of 30 °.
- the length of the storage groove was 50 mm from the joint end.
- Figure 14 shows an enlarged photograph of the joint between the two radiator units.
- Fig. 15 shows an enlarged photograph of the side part of the folded part.
- a thin plate-like body is used so that the initial warming is very fast, the thermal efficiency is high, and the running cost is low, and the overall thickness is 18 mm or less. Therefore, it is possible to provide a heating floor that is excellent in soundproofing.
- Fig. 1 is a schematic view showing an example of a heating floor of the present invention.
- FIG. 2 is a schematic diagram showing an example of a heating floor according to the present invention.
- FIG. 3 is a schematic diagram showing a cross section in a vertically long cell type rigid foam.
- FIG. 4 is a schematic view showing a preferred example of a rib-type hard foam.
- FIG. 5 is a schematic view showing a preferred example of a rib-type hard foam.
- FIG. 6 is a schematic view showing a preferred example of a rib-type hard foam.
- FIG. 7 is a schematic view showing a preferred example of a rib-type hard foam.
- FIG. 8 is a schematic view showing a preferred example of a rib-type hard foam.
- FIG. 9 is a schematic view for explaining an example of a method for producing a rib-type hard foam.
- FIG. 10 is a schematic view illustrating a preferred example of a method for preparing a foamable resin sheet.
- FIG. 11 is a schematic view showing a metal foil shaped into a groove shape.
- FIG. 12 is a schematic diagram showing an example of a heating floor according to the second aspect of the present invention.
- FIG. 13 is a schematic diagram showing a state when the heating floor of the present invention 2 is folded.
- FIG. 14 is an enlarged photograph of a joint portion of two radiator units of the heating floor produced in Example 12.
- FIG. 15 is an enlarged photograph of a side surface portion of a folded portion of a heating floor produced in Example 12.
- FIG. 16 is a schematic diagram for explaining a floor heating panel disclosed in Patent Document 2.
- FIG. 17 is a schematic diagram illustrating a foldable heat dissipating member disclosed in Patent Document 3.
- FIG. 18 is a schematic view showing a hard foam with double-sided embossing produced in Example 6.
- FIG. 19 is a schematic diagram for explaining a problem when a conventional heating floor is constructed, and the heating floor of the present invention.
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Abstract
Description
Claims
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PCT/JP2004/017026 WO2006054335A1 (ja) | 2004-11-16 | 2004-11-16 | 暖房床 |
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PCT/JP2004/017026 WO2006054335A1 (ja) | 2004-11-16 | 2004-11-16 | 暖房床 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108758771A (zh) * | 2018-06-02 | 2018-11-06 | 南昌沃嘉科技有限公司 | 一种互联网温控***及电地暖 |
US10358778B2 (en) | 2015-02-06 | 2019-07-23 | Michael Gregory Theodore, Jr. | Temperature controlled structure assembly |
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US10570574B2 (en) | 2015-02-06 | 2020-02-25 | Michael Gregory Theodore, Jr. | Temperature controlled structure assembly |
CN108758771A (zh) * | 2018-06-02 | 2018-11-06 | 南昌沃嘉科技有限公司 | 一种互联网温控***及电地暖 |
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