CN112811853A - Flexible water-permeable thin plate and preparation method thereof - Google Patents
Flexible water-permeable thin plate and preparation method thereof Download PDFInfo
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- CN112811853A CN112811853A CN202110069928.5A CN202110069928A CN112811853A CN 112811853 A CN112811853 A CN 112811853A CN 202110069928 A CN202110069928 A CN 202110069928A CN 112811853 A CN112811853 A CN 112811853A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/16—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Wood Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a flexible water-permeable sheet and a preparation method thereof, and the flexible water-permeable sheet mainly comprises aggregate, an elastic adhesive, pigment and fiber cloth, wherein the elastic adhesive comprises 15-80 wt% of a component A, 10-70 wt% of a component B, 5 wt% of a diluent and 5-15 wt% of polyether polyol. The preparation method comprises the steps of spreading fiber cloth on a die; adding the pigment into the elastic adhesive, and stirring for 1-2min to be uniform; adding the aggregate, and continuously stirring for 2-5min until the mixture is uniform to obtain a mixture; pouring the mixture on a die paved with fiber cloth, and grinding the mixture into a film with the thickness of 3-10mm by using a tool; maintaining at normal temperature for 24h or heating to 40-70 deg.C and maintaining for 3-12 h; and removing the mold, and uniformly spraying a layer of brightener on the surface of the flexible water-permeable sheet.
Description
Technical Field
The invention belongs to the field of building materials, and particularly relates to a flexible water-permeable sheet and a preparation method thereof.
Background
With the rapid development of social economy and urbanization, new technology, new process, new material and new product are continuously applied in production and life. Urban construction is an important component of urban management. The construction of sponge cities has been vigorously advocated by the nation and the government, and various water-permeable pavement paving products, such as water-permeable pavement bricks and water-permeable pavement slabs, have been produced to achieve the aim, and the good water permeability and mechanical properties make the water-permeable pavement bricks and the water-permeable pavement slabs popular, and many important buildings and the peripheries thereof are paved with the water-permeable pavement paving products at present. However, conventional permeable paving products such as permeable bricks or plates generally have the following problems: (1) the steel plate has the advantages of high brittleness, poor peeling resistance and low wear resistance, and cracks appear on the surface of the steel plate after rolling of a large truck, so that the steel plate is peeled, peeled or damaged. (2) Too thick and heavy, which makes the raw material cost and transportation cost higher. In order to solve the problems, the invention discloses a novel permeable pavement product, namely a flexible permeable sheet, which has excellent elasticity, well overcomes the defects of the common permeable pavement product, and people can feel great comfort when walking on the permeable pavement product; its excellent wear resistance increases its durability.
Disclosure of Invention
The invention aims to provide a flexible water-permeable sheet which is light, thin, high in elasticity and flexibility, good in wear resistance and water permeability and capable of being applied to the positions of sports ground, sidewalk, roadway and other areas
Furthermore, the invention also provides a preparation method of the flexible water-permeable sheet.
A flexible water-permeable sheet is formed by uniformly paving a mixture on fiber cloth, grinding the mixture flat and then curing the mixture, wherein the mixture is composed of aggregate, elastic adhesive, the fiber cloth and pigment.
Preferably, the weight ratio of the aggregate to the elastic adhesive is (85-95): (5-15), the mass of the pigment is 0-2.5 wt% of the mass of the aggregate;
the thickness of the flexible water permeable thin film is 3-10mm, and preferably 5 mm.
Preferably, the mass per unit area of the fiber cloth is 100-400g/m2。
More preferably, the mass of the aggregate used per unit area of the fiber cloth is 4.8 to 22kg/m2。
Preferably, the aggregate is selected from rigid materials such as quartz sand, ceramic sand, carborundum and the like with 5-80 meshes.
The elastic adhesive comprises 15-80 wt% of a component A, 10-70 wt% of a component B, 5 wt% of a diluent and 5-10 wt% of polyether polyol.
Wherein the component A is one or the combination of any more of diphenylmethane diisocyanate (MDI), Toluene Diisocyanate (TDI), isophorone diisocyanate (IPDI), Hexamethylene Diisocyanate (HDI) and the like; the component B is amino-terminated polyether of one or more of primary amino polyether, secondary amino polyether and the like; the elastic adhesive also comprises a diluent and polyether polyol, wherein the polyether polyol is one or more of polyoxypropylene triol, polypropylene glycol, polyethylene glycol and the like, and the diluent is one or more of ethanol, toluene, xylene, acetone and ethyl acetate.
Preferably, the diluent is formed by mixing ethanol, toluene, xylene and ethyl acetate in a weight ratio of 1:2.5:2: 4.
Wherein the fiber cloth is selected from one or more of glass fiber cloth, polypropylene fiber cloth, polyethanol fiber cloth or polyethylene fiber cloth. Density of 100-400g/m2The grid is more than or equal to 5mm multiplied by 5mm, and the tensile breaking strength is more than or equal to 1500N/50 mm. More preferably, the aggregate is selected from rigid materials such as 10-20 mesh quartz sand, ceramic sand, carborundum and the like.
A preparation method of the flexible water-permeable sheet comprises the following steps:
(1) spreading a fiber cloth on a die;
(2) adding the pigment into the elastic adhesive, and stirring for 1-2min to be uniform;
(3) adding the aggregate, and continuously stirring for 2-5min until the mixture is uniform to obtain a mixture;
(4) pouring the mixture on a mould paved with fiber cloth, and grinding the mixture into a thickness of 3-10mm by using a tool;
(5) curing and curing at normal temperature for 24h or heating to 40-70 ℃ for 3-12 h;
(6) and removing the mold, and uniformly spraying a layer of brightener on the surface of the flexible water-permeable sheet.
The elastic glue is prepared by the following method:
(1) dehydrating polyether polyol, namely putting the polyether polyol into a vacuum drying box at the temperature of 110-;
(2) preparing a prepolymer: adding the dehydrated polyether glycol into a four-neck flask provided with a stirring device, a reflux condenser tube, a constant-pressure dropping funnel and dry nitrogen, adding the component A, heating to 70-90 ℃, and reacting for 2-4 hours to obtain a prepolymer;
(3) preparing an adhesive: and in the use site, physically mixing and uniformly stirring the prepolymer, the component B and the diluent to obtain the elastic adhesive.
The brightener is a resin coating containing methacrylate and butyl acrylate.
Compared with the prior art, the flexible water-permeable sheet prepared by the invention has the following advantages:
(1) light and thin, the thickness is 3-10mm, and the density is 1.6-2.2g/cm3The transportation and the remote transportation are convenient;
(2) high elasticity and good flexibility, the stretching deformation rate is more than 10 percent, the elastic fabric can be recovered after being bent within a certain range, and people can walk on the elastic fabric comfortably;
(3) the elastic prefabricated coiled material has good wear resistance and water permeability, is uniformly wrapped on the surface of aggregate through the elastic adhesive, forms a three-dimensional network structure with sand grains, can keep certain structural strength and has good porosity through a forming process, so that the elastic prefabricated coiled material has good mechanical property and water permeability, the grinding pit depth is less than or equal to 20mm, the stone standard is reached, and the surface is still intact after repeated grinding by a 60-ton large truck; good water permeability, its permeabilityThe water property is (6-15) multiplied by 10-2cm/s, can meet the requirement of not wetting shoes in rainy days;
(4) the texture is high-grade and beautiful, and the stone-like effect can be obtained through the matching of different aggregates or pigments and the aggregates, thereby having good decorative effect.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the present invention will be further described in detail with reference to the following specific examples.
Quartz sand: from Hubei Agkistrodon, with specification of 2-4 mesh, 5-10 mesh, 10-20 mesh, 20-40 mesh, 40-80 mesh, 80-120 mesh;
secondary amino polyether: hunts-man corporation, Jeffamine SD-231, usa;
primary amino polyether: shandong Moore chemical Co., Ltd., polyetheramine-terminated aminopolyether T403;
polyoxypropylene triol: xu bright huiyang new materials ltd, model number 330N, cat number 3000;
polypropylene glycol: seaan petrochemical plant, PPG 2000, in jiangsu province;
polyethylene glycol: a haian petrochemical plant, PEG 4000, of Jiangsu province;
fiber cloth: glass fiber cloth, Shenyang surpasses glass fiber products company Limited, the unit area mass is 180g/m 2;
pigment: titanium dioxide, Shanghai Yipin pigment, Inc., rutile SR 201;
brightening agent: hangzhou Aijia paint, Inc., acrylic finish coatings;
the rest of the raw materials are commercially available.
Examples 1-3 and comparative examples 1-3 preparation of elastomeric adhesives
According to the weight ratio of the materials selected in the table 1 and the material selected in the table 2, the component A, the component B, the diluent and the polyether polyol are prepared into the elastic adhesive according to the following method.
(1) Dehydrating polyether polyol, namely putting the polyether polyol into a vacuum drying box at the temperature of 110-;
(2) preparing a prepolymer: adding the dehydrated polyether glycol into a four-neck flask provided with a stirring device, a reflux condenser tube, a constant-pressure dropping funnel and dry nitrogen, adding the component A, heating to 70-90 ℃, and reacting for 2-4 hours to obtain a prepolymer;
(3) preparing an adhesive: and in the use site, physically mixing and uniformly stirring the prepolymer, the component B and the diluent to obtain the elastic adhesive.
Examples 4 to 7 and comparative examples 4 to 10
The materials were prepared according to the selection and proportion shown in table 3, and the sheet was prepared according to the following method:
(1) spreading a fiber cloth on a die;
(2) adding the pigment into the elastic adhesive, and stirring for 2min to be uniform;
(3) adding the aggregate, and continuously stirring for 5min until the mixture is uniform to obtain a mixture;
(4) pouring the mixture on a die paved with fiber cloth, and grinding the mixture into a thickness of 5mm by using the die;
(5) heating to 55 ℃ and curing for 8 h.
(6) And removing the mold, and uniformly spraying a layer of brightener on the surface of the flexible water-permeable sheet.
TABLE 1 raw materials for elastic adhesives (Diluent ratio by weight)
TABLE 2 elastomeric adhesive raw material amount (unit: parts by weight)
| Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Component A | 15 | 60 | 80 | 60 | 60 | 60 |
| B component | 70 | 25 | 10 | 25 | 25 | 25 |
| Diluent | 5 | 5 | 5 | 5 | 5 | 5 |
| Polyether polyols | 10 | 10 | 5 | 10 | 10 | 10 |
Table 3 raw material formulation table for sheet preparation
The flexible water-permeable sheets prepared in comparative examples 4 to 10 and examples 4 to 7 were subjected to the following tests, and the test results are shown in table 4:
tensile deformation rate test: according to a test method of a standard GB/T328.8-2007 tensile property of asphalt waterproof coiled materials in a test method of building waterproof coiled materials, the tensile deformation rate is the elongation rate at the maximum tensile force.
Grinding pit length: the method is carried out according to the provisions of the standard GB/T12988 wear resistance test method for inorganic floor materials.
Water permeability coefficient: the test is carried out according to appendix C in GB/T25993-2010 permeable pavement bricks and permeable pavement slabs.
Table 4 performance test results of flexible water-permeable sheets
According to the test result of the flexible water-permeable sheet, the specific elastic adhesive prepared by the method, the aggregate with the specific particle size and the fiber cloth are light and thin, and the high elasticity, flexibility, wear resistance and water permeability of the flexible water-permeable sheet are obviously superior to those of the sheet prepared by other formulas.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The flexible permeable sheet is characterized in that the flexible permeable sheet is formed by uniformly paving a mixture on fiber cloth, grinding the mixture flat and then curing the mixture, wherein the mixture mainly comprises aggregate, elastic adhesive, the fiber cloth and pigment.
2. The flexible water-permeable sheet according to claim 1, wherein the mixture comprises the following components in parts by weight:
the weight ratio of the aggregate to the elastic adhesive is (85-95): (5-15), the mass of the pigment is 0-2.5 wt% of the mass of the aggregate;
the thickness of the flexible water permeable thin film is 3-10 mm.
3. The flexible water permeable sheet of claim 2, wherein:
the aggregate is selected from 5-80 mesh quartz sand, ceramic sand or carborundum.
4. The flexible water permeable sheet of claim 3, wherein:
the elastic adhesive comprises 15-80 wt% of component A, 10-70 wt% of component B, 5 wt% of diluent and 5-10 wt% of polyether polyol.
5. The flexible water permeable sheet of claim 4, wherein:
the component A is one or the combination of any more of diphenylmethane diisocyanate (MDI), Toluene Diisocyanate (TDI), isophorone diisocyanate (IPDI), Hexamethylene Diisocyanate (HDI) and the like; the component B is one or more of amino-terminated polyethers such as primary amino polyether and secondary amino polyether; the elastic adhesive also comprises a diluent and polyether polyol, wherein the polyether polyol is one or more of polyoxypropylene triol, polypropylene glycol, polyethylene glycol and the like, and the diluent is one or more of ethanol, toluene, xylene, acetone and ethyl acetate.
6. The flexible water permeable sheet of claim 5, wherein:
the fiber cloth is selected from any one or more of glass fiber cloth, polypropylene fiber cloth, polyethanol fiber cloth or polyethylene fiber cloth.
7. The flexible water permeable sheet of claim 6, wherein:
the aggregate is selected from 10-20 mesh quartz sand, ceramic sand or carborundum.
8. A method of making a flexible water-permeable sheet according to claims 1-8, comprising the steps of:
(1) spreading a fiber cloth on a die;
(2) adding the pigment into the elastic adhesive, and stirring for 1-2min to be uniform;
(3) adding the aggregate, and continuously stirring for 2-5min until the mixture is uniform to obtain a mixture;
(4) pouring the mixture on a mould paved with fiber cloth, and grinding the mixture into a thickness of 3-10mm by using a tool;
(5) curing and curing at normal temperature for 24h or heating to 40-70 ℃ for 3-12 h;
(6) and removing the mold, and uniformly spraying a layer of brightener on the surface of the flexible water-permeable sheet.
9. The method of making a flexible water-permeable sheet of claim 8, wherein: the elastic glue is prepared by the following method:
(1) dehydrating polyether polyol: putting polyether glycol into a vacuum drying box at the temperature of 110-;
(2) preparing a prepolymer: adding the dehydrated polyether glycol into a four-neck flask provided with a stirring device, a reflux condenser tube, a constant-pressure dropping funnel and dry nitrogen, adding the component A, heating to 70-90 ℃, and reacting for 2-4 hours to obtain a prepolymer;
(3) preparing an adhesive: and in the use site, physically mixing and uniformly stirring the prepolymer, the component B and the diluent to obtain the elastic adhesive.
10. The method of making a flexible water-permeable sheet of claim 8, wherein; the brightener is a resin coating containing methacrylate and butyl acrylate.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100659465B1 (en) * | 2006-02-17 | 2006-12-19 | 김성은 | Elastic and absorbent pavement material |
| CN108640580A (en) * | 2018-06-12 | 2018-10-12 | 合肥新骏建材科技有限公司 | A kind of resistant to bending preparation method of the resistance to compression of water-permeable brick |
| CN109553363A (en) * | 2019-01-17 | 2019-04-02 | 林瑞云 | A kind of emulation stone slab and preparation method thereof |
-
2021
- 2021-01-19 CN CN202110069928.5A patent/CN112811853B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100659465B1 (en) * | 2006-02-17 | 2006-12-19 | 김성은 | Elastic and absorbent pavement material |
| CN108640580A (en) * | 2018-06-12 | 2018-10-12 | 合肥新骏建材科技有限公司 | A kind of resistant to bending preparation method of the resistance to compression of water-permeable brick |
| CN109553363A (en) * | 2019-01-17 | 2019-04-02 | 林瑞云 | A kind of emulation stone slab and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 本社编: "《建筑材料行业发展及工程应用》", 30 November 2011 * |
| 李兴贵: "《无溶剂聚氨酯改性水泥砂浆及其性能研究》", 《新型建筑材料》 * |
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