CN111574111A - Light high-strength straw board for interior wall and preparation method and application thereof - Google Patents
Light high-strength straw board for interior wall and preparation method and application thereof Download PDFInfo
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- CN111574111A CN111574111A CN202010261677.6A CN202010261677A CN111574111A CN 111574111 A CN111574111 A CN 111574111A CN 202010261677 A CN202010261677 A CN 202010261677A CN 111574111 A CN111574111 A CN 111574111A
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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
- C04B26/30—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds
- C04B26/32—Compounds having one or more carbon-to-metal or carbon-to-silicon linkages ; Other silicon-containing organic compounds; Boron-organic compounds containing silicon
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/70—Coating or impregnation for obtaining at least two superposed coatings having different compositions
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- 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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- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- 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
- C04B2111/00008—Obtaining or using nanotechnology related materials
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- 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
- C04B2111/00482—Coating or impregnation 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
- C04B2111/40—Porous or lightweight materials
Abstract
The invention discloses a light high-strength straw board for an inner wall and a preparation method and application thereof, wherein the light high-strength straw board for the inner wall comprises a cement mortar layer, a straw board core and a coating, the cement mortar layer adopts sulphoaluminate cement, and the straw board core is prepared from the following raw materials in parts by mass: 40-80 parts of straw, 1-2 parts of filler, 4-6 parts of metal oxide and 5-15 parts of halogen-free flame retardant adhesive; the coating comprises the following raw materials in parts by weight: 100 parts of acrylate, 4-8 parts of ammonium dihydrogen phosphate, 6-10 parts of modified kaolin, 6-10 parts of sodium dihydrogen phosphate, 0.5-5 parts of potassium tetraborate, 0.05-0.5 part of vinyl triethoxysilane, 0.6-1 part of N-methyl methacrylate, 1-2 parts of graphene, 5-9 parts of triphenyl phosphate and 1-3 parts of calcium lignosulfonate, and the modified kaolin is uniformly dispersed in a dispersing agent.
Description
Technical Field
The invention relates to the technical field of inner wall partition boards, in particular to a light high-strength straw board for an inner wall and a preparation method and application thereof.
Background
The popular and easy to understand of the heat insulation plate is the plate for heat insulation of the building. The heat-insulating board is a hard foamed plastic board made up by using polystyrene resin as raw material, adding other raw auxiliary materials and polymer, heating, mixing and simultaneously injecting catalyst, then extruding and forming, and has the functions of resisting moisture and resisting water, and can reduce the thickness of exterior enclosure structure of building so as to increase indoor use area.
The strength of the XPS plate is high, so that the plate is brittle and is not easy to bend, stress is concentrated when stress exists on the plate, and the plate is easy to damage and crack; the air permeability is poor, the air is almost airtight, and if the temperature difference between the two sides of the plate is large, the moisture is high, and the dew condensation is easy to occur; because the surface of the plate is smooth, interface treatment is needed during construction, and galling is carried out. The hair panel is not in the row; the XPS board is not firmly bonded with plastering mortar and is easy to fall off; the outer tiles fall off more quickly and seriously.
The formula and the proportion of the polyurethane insulation board are mixed and disorderly and unstable, so that the physical stability of the board is poor and the insulation effect is not good; the construction property of spraying is not solved, and the engineering quality is difficult to ensure.
A rock wool board (Stone wood board), also called rock wool heat preservation decorative board, is an inorganic fiber board which is made by using basalt as a main raw material through high-temperature melting processing, and the rock wool board which is successfully tested in 6 months in 1981 is a novel heat preservation, fire insulation and sound absorption material.
However, the existing rock wool board has great influence on workers during production, low strength and poor mechanical property, and the prior art is slightly insufficient.
Disclosure of Invention
The invention provides a light high-strength straw board for an inner wall and a preparation method and application thereof, aiming at solving the technical problems of poor heat insulation, poor mechanical property, poor adhesive force and the like of a colorful steel plate in the prior art.
The invention adopts the following technical scheme:
the light high-strength straw board for the inner wall is composed of a cement mortar layer, a straw board core and a coating, wherein the cement mortar layer is made of sulphoaluminate cement, and the straw board core is prepared from the following raw materials in parts by mass: 40-80 parts of straw, 1-2 parts of filler, 4-6 parts of metal oxide and 5-15 parts of halogen-free flame retardant adhesive; the coating comprises the following raw materials in parts by weight: 100 parts of acrylate, 4-8 parts of ammonium dihydrogen phosphate, 6-10 parts of modified kaolin, 6-10 parts of sodium dihydrogen phosphate, 0.5-5 parts of potassium tetraborate, 0.05-0.5 part of vinyl triethoxysilane, 0.6-1 part of N-methyl methacrylate, 1-2 parts of graphene, 5-9 parts of triphenyl phosphate and 1-3 parts of calcium lignosulfonate, and the modified kaolin is uniformly dispersed in a dispersing agent.
A preparation method of a light high-strength straw board for an inner wall comprises the following steps: the first step is as follows: taking loose and clean straws, crushing the straws to a particle size of less than 15mm, and then drying the straws at a temperature of between 80 and 100 ℃ until the water content is between 3 and 5 percent; the second step is that: adding a filler, a metal oxide and a halogen-free flame-retardant adhesive into the dried straws, carrying out hot press forming in a hot press forming device, wherein the inner die of the hot press forming device is a die with upper and lower surfaces in a zigzag manner, and carrying out moisture preservation and maintenance after demoulding; the third step: cooling the hot-pressed straw board blank by a cooling belt, and feeding the cooled straw board blank into a straw board cutting device for cutting; cutting, conveying to a sealing machine for sealing, and preparing a straw board core; the fourth step: taking the end-capped straw board core, sequentially scraping sulphoaluminate cement with the thickness of 0.5mm on six surfaces of the straw board core, then placing the straw board core in a hot-pressing and shaping device, and cooling the straw board core after hot-pressing and shaping; the fifth step: after cooling, the mixture is polished to be flat by 400-mesh sand paper and 600-mesh sand paper, and after 48 hours, the mixture is evenly sprayed with 1-2 coatings with the dosage of 0.16kg/m2And drying to obtain the finished product.
As a preferred technical scheme of the invention: the straws are one or more of sugarcane straws, rice straw straws, corn straws, wheat straws and sorghum straws, and are prepared by three working procedures of screening, washing, impurity removal, spraying of insect-proof antibacterial liquid, crushing and drying and dehydration; the insect-proof antibacterial liquid is prepared by mixing and decocting 30-50 parts of peppermint oil, 6-10 parts of wormwood, 6-10 parts of fennel, 11-15 parts of lemongrass and 1-5 parts of calamus according to the mass part ratio, adding water with the mass being 8-10 times of the total mass during decoction, and decocting for 30-50 min; and cooling the decocted solution, adding 80 times of purified water by mass, and uniformly mixing to obtain the spray for use.
As a preferred technical scheme of the invention: the preparation method of the modified kaolin comprises the following steps: calcining kaolin at 680-720 ℃ for 3-5h, cooling to normal temperature, then placing the calcined kaolin in 10-15% hydrochloric acid solution, heating in water bath to 70-80 ℃, preserving heat for 30-40min, filtering, washing filter residue to be neutral by using distilled water, drying, then adding 6-10% sepiolite powder, 4-6% vermiculite powder, 3-5% asbestos powder, 2-4% calcium lignosulfonate and 0.5-1% gamma-aminopropyltriethoxysilane which are equivalent to the weight of the kaolin, and grinding at high speed for 20-30 min; finally, adding silica sol which accounts for 10-15% of the weight of the kaolin, 3-5% of sodium tripolyphosphate and 5-10% of plant ash, stirring at a high speed for 10-15min, drying, calcining at 960-.
As a preferred technical scheme of the invention: the sulphoaluminate cement also contains 0.5 part of high boiling point silicon alcohol water repellent and 0.4-0.8 part of ether amine water reducing agent according to the mass part ratio of 100 parts.
As a preferred technical scheme of the invention: the filler comprises the following raw materials in parts by weight: 0.4-0.8 part of surfactant, 0.5-2 parts of dispersant, 16-20 parts of reinforcing fiber, 0.1-0.3 part of nano particle, 1-10 parts of metal oxide and 4-8 parts of plasticizer, wherein the surfactant is tributyl phosphate, the dispersant is sodium polycarboxylate, the reinforcing fiber is one or more of glass fiber, aramid fiber, carbon fiber, quartz fiber, basalt fiber and phenolic fiber, the metal oxide is one or more of magnesium oxide, aluminum oxide and barium oxide, the nano particle is one or more of nano silicon dioxide, nano titanium dioxide and nano zirconium dioxide, the particle size of the nano particle is 100-150nm, and the plasticizer is dibutyl phthalate.
As a preferred technical scheme of the invention: the preparation method of the halogen-free flame retardant adhesive comprises the steps of dispersing a flame retardant and an emulsifier into water to form a water phase under the stirring condition that the stirring speed is 100-1000 r/min, dispersing a vinyl emulsion adhesive into the water phase, adding a flatting agent, stirring for 0.5-6 hours, adding a defoaming agent, and filtering to obtain the halogen-free flame retardant adhesive, wherein the using amount of the flame retardant is 1-100% of the weight of the vinyl emulsion adhesive; the using amount of the emulsifier is 0.1-20% of the weight of the vinyl emulsion adhesive; the using amount of water is 20-200% of the weight of the vinyl emulsion adhesive; the usage amount of the flatting agent is 0.1-10% of the weight of the vinyl emulsion adhesive; the usage amount of the defoaming agent is 0.1-10% of the weight of the vinyl emulsion adhesive.
As a preferred technical scheme of the invention: the flame retardant is a solid flame retardant, a liquid flame retardant or a mixture of the solid flame retardant and the liquid flame retardant, and the mixing ratio of the solid flame retardant and the liquid flame retardant is any ratio; wherein the liquid flame retardant is one or a mixture of more than one of dimethyl methylphosphonate (DMMP), triisopropylphenyl phosphate (IPPP) and phosphoric acid; the solid flame retardant is one or a mixture of more than one of magnesium hydroxide, aluminum hydroxide, ammonium polyphosphate, triphenyl phosphate, Melamine Cyanurate (MCA), melamine polyphosphate (MPP), zinc borate, red phosphorus and antimony trioxide; the solid particle size is 500-1500 meshes.
As a preferred technical scheme of the invention: the vinyl emulsion adhesive is one of styrene-acrylic emulsion, vinyl acetate-acrylic emulsion, acrylic emulsion or vinyl acetate-ethylene copolymer emulsion (VAE emulsion), the emulsifier is sodium hexametaphosphate or a mixture of two or more of sodium dodecyl sulfate (SLS), polyoxyethylene nonylphenol ether (OP), sodium octylphenol polyoxyethylene ether maleate (OS), polyethylene glycol 200, polyethylene glycol 400 and sodium hexametaphosphate, the proportion is any ratio, the leveling agent is one of polydimethylsiloxane and polyether modified derivatives thereof, the defoaming agent is one of mineral oil defoaming agent or organic siloxane defoaming agent, and the leveling agent is F-2307 or BYK-331; the antifoaming agent is F111 or SXP-107.
The invention also discloses application of the light high-strength straw board for the inner wall in the inner wall partition board.
Has the advantages that: 1. the raw materials are easy to obtain, the process is simple, the cost is low, the environment is protected, the formula is novel and scientific, and the ultraviolet resistance and the corrosion resistance are realized; 2. the weight is light, the mechanical property is good, the heat insulation and preservation performance is good, the high temperature resistance, the corrosion resistance, the water resistance, the compression resistance, the impact resistance and the high bending strength are achieved; 3. the paint is wear-resistant, insect-resistant, radiation-resistant, salt spray test and ultraviolet light aging resistant, and does not foam or peel after 5000 hours; 4. the cost performance is high, the deflection is high, the flexibility is good, the product quality stability is good, and the impact strength and the bending strength are high; 5. the construction is simple, no noise pollution, the comprehensive cost is excellent, the density is small, the weight is light, and the structural stability is good.
Drawings
Fig. 1 is a second thermal compression diagram of the preparation method of the light high-strength straw board for the interior wall.
Detailed Description
The present invention is further described with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the claims, and other alternatives which may occur to those skilled in the art are also within the scope of the claims.
Example 1:
the light high-strength straw board for the inner wall is composed of a cement mortar layer, a straw board core and a coating, wherein the cement mortar layer is made of sulphoaluminate cement, and the straw board core is prepared from the following raw materials in parts by mass: 40-80 parts of straw, 1-2 parts of filler, 4-6 parts of metal oxide and 5-15 parts of halogen-free flame retardant adhesive; the coating comprises the following raw materials in parts by weight: 100 parts of acrylate, 4-8 parts of ammonium dihydrogen phosphate, 6-10 parts of modified kaolin, 6-10 parts of sodium dihydrogen phosphate, 0.5-5 parts of potassium tetraborate, 0.05-0.5 part of vinyl triethoxysilane, 0.6-1 part of N-methyl methacrylate, 1-2 parts of graphene, 5-9 parts of triphenyl phosphate and 1-3 parts of calcium lignosulfonate, and the modified kaolin is uniformly dispersed in a dispersing agent.
The preparation method of the light high-strength straw board for the inner wall comprises the following steps: the first step is as follows: taking loose and clean straws, crushing the straws to a particle size of less than 15mm, and then drying the straws at a temperature of between 80 and 100 ℃ until the water content is between 3 and 5 percent; the second step is that: adding a filler, a metal oxide and a halogen-free flame-retardant adhesive into the dried straws, carrying out hot press molding in a hot press molding device, wherein the inner mold of the hot press molding device is a serrated mold with upper and lower surfaces, and carrying out moisture retention and maintenance after demolding, wherein a hot press curve during hot press molding is shown in figure 1; the third step: cooling the hot-pressed straw board blank by a cooling belt, and feeding the cooled straw board blank into a straw board cutting device for cutting; cutting, conveying to a sealing machine for sealing, and preparing a straw board core; the fourth step: taking the end-capped straw board core, sequentially scraping sulphoaluminate cement with the thickness of 0.5mm on six surfaces of the straw board core, then placing the straw board core in a hot-pressing and shaping device, and cooling the straw board core after hot-pressing and shaping; the fifth step: after cooling, the mixture is polished to be flat by 400-mesh sand paper and 600-mesh sand paper, and after 48 hours, the mixture is evenly sprayed with 1-2 coatings with the dosage of 0.16kg/m2And drying to obtain the finished product.
The straws are one or more of sugarcane straws, rice straw straws, corn straws, wheat straws and sorghum straws, and are prepared by three working procedures of screening, washing, impurity removal, spraying of insect-proof antibacterial liquid, crushing and drying and dehydration; the insect-proof antibacterial liquid is prepared by mixing and decocting 30-50 parts of peppermint oil, 6-10 parts of wormwood, 6-10 parts of fennel, 11-15 parts of lemongrass and 1-5 parts of calamus according to the mass part ratio, adding water with the mass being 8-10 times of the total mass during decoction, and decocting for 30-50 min; and cooling the decocted solution, adding 80 times of purified water by mass, and uniformly mixing to obtain the spray for use.
The preparation method of the modified kaolin comprises the following steps: calcining kaolin at 680-720 ℃ for 3-5h, cooling to normal temperature, then placing the calcined kaolin in 10-15% hydrochloric acid solution, heating in water bath to 70-80 ℃, preserving heat for 30-40min, filtering, washing filter residue to be neutral by using distilled water, drying, then adding 6-10% sepiolite powder, 4-6% vermiculite powder, 3-5% asbestos powder, 2-4% calcium lignosulfonate and 0.5-1% gamma-aminopropyltriethoxysilane which are equivalent to the weight of the kaolin, and grinding at high speed for 20-30 min; finally, adding silica sol which accounts for 10-15% of the weight of the kaolin, 3-5% of sodium tripolyphosphate and 5-10% of plant ash, stirring at a high speed for 10-15min, drying, calcining at 960-.
The sulphoaluminate cement also contains 0.5 part of high boiling point silicon alcohol water repellent and 0.4-0.8 part of ether amine water reducing agent according to the mass part ratio of 100 parts.
The filler comprises the following raw materials in parts by weight: 0.4-0.8 part of surfactant, 0.5-2 parts of dispersant, 16-20 parts of reinforcing fiber, 0.1-0.3 part of nano particle, 1-10 parts of metal oxide and 4-8 parts of plasticizer, wherein the surfactant is tributyl phosphate, the dispersant is sodium polycarboxylate, the reinforcing fiber is one or more of glass fiber, aramid fiber, carbon fiber, quartz fiber, basalt fiber and phenolic fiber, the metal oxide is one or more of magnesium oxide, aluminum oxide and barium oxide, the nano particle is one or more of nano silicon dioxide, nano titanium dioxide and nano zirconium dioxide, the particle size of the nano particle is 100-150nm, and the plasticizer is dibutyl phthalate.
The preparation method of the halogen-free flame retardant adhesive comprises the steps of dispersing a flame retardant and an emulsifier into water to form a water phase under the stirring condition that the stirring speed is 100-1000 r/min, dispersing a vinyl emulsion adhesive into the water phase, adding a flatting agent, stirring for 0.5-6 hours, adding a defoaming agent, and filtering to obtain the halogen-free flame retardant adhesive, wherein the using amount of the flame retardant is 1-100% of the weight of the vinyl emulsion adhesive; the using amount of the emulsifier is 0.1-20% of the weight of the vinyl emulsion adhesive; the using amount of water is 20-200% of the weight of the vinyl emulsion adhesive; the usage amount of the flatting agent is 0.1-10% of the weight of the vinyl emulsion adhesive; the usage amount of the defoaming agent is 0.1-10% of the weight of the vinyl emulsion adhesive.
The flame retardant is a solid flame retardant, a liquid flame retardant or a mixture of the solid flame retardant and the liquid flame retardant, and the mixing ratio of the solid flame retardant and the liquid flame retardant is any ratio; wherein the liquid flame retardant is one or a mixture of more than one of dimethyl methylphosphonate (DMMP), triisopropylphenyl phosphate (IPPP) and phosphoric acid; the solid flame retardant is one or a mixture of more than one of magnesium hydroxide, aluminum hydroxide, ammonium polyphosphate, triphenyl phosphate, Melamine Cyanurate (MCA), melamine polyphosphate (MPP), zinc borate, red phosphorus and antimony trioxide; the solid particle size is 500-1500 meshes.
The vinyl emulsion adhesive is one of styrene-acrylic emulsion, vinyl acetate-acrylic emulsion, acrylic emulsion or vinyl acetate-ethylene copolymer emulsion (VAE emulsion), the emulsifier is sodium hexametaphosphate or a mixture of two or more of sodium dodecyl sulfate (SLS), polyoxyethylene nonylphenol ether (OP), sodium octylphenol polyoxyethylene ether maleate (OS), polyethylene glycol 200, polyethylene glycol 400 and sodium hexametaphosphate, the proportion is any ratio, the leveling agent is one of polydimethylsiloxane and polyether modified derivatives thereof, the defoaming agent is one of mineral oil defoaming agent or organic siloxane defoaming agent, and the leveling agent is F-2307 or BYK-331; the antifoaming agent is F111 or SXP-107.
A mixture of 100g of dimethyl methylphosphonate (DMMP) and 10g of sodium dodecyl sulfate (SLS), polyoxyethylene nonylphenol ether (OP) and sodium octylphenol polyoxyethylene ether maleate (OS) was added to 1000g of water under stirring at a speed of 100 rpm, 1000g of styrene-acrylic emulsion and 1g of polydimethylsiloxane were added, and stirring was carried out for 0.5 hour, and finally 1g F111 antifoaming agent was added. The performance results of the prepared flame-retardant adhesive are shown in the attached table.
When the light high-strength straw board for the inner wall is applied, the surface of a wall body base material is firstly subjected to smooth and clean treatment, oil stain is removed, a pointing joint is filled, 2-3 times of sulphoaluminate cement is scraped when the ambient temperature is more than or equal to 5 ℃ and the humidity is more than or equal to 80 percent, and the using amount is 2-4kg/m2Leveling by a spatula, polishing by 400-plus 600-mesh sand paper, and rolling and coating a halogen-free flame-retardant adhesive for 48 hours, wherein the dosage of the halogen-free flame-retardant adhesive is 0.12kg/m2Then the straw board is bonded with the inner wall by using the light high-strength straw board.
Example 2:
the light high-strength straw board for the inner wall is composed of a cement mortar layer, a straw board core and a coating, wherein the cement mortar layer is made of sulphoaluminate cement, and the straw board core is prepared from the following raw materials in parts by mass: 40-80 parts of straw, 1-2 parts of filler, 4-6 parts of metal oxide and 5-15 parts of halogen-free flame retardant adhesive; the coating comprises the following raw materials in parts by weight: 100 parts of acrylate, 4-8 parts of ammonium dihydrogen phosphate, 6-10 parts of modified kaolin, 6-10 parts of sodium dihydrogen phosphate, 0.5-5 parts of potassium tetraborate, 0.05-0.5 part of vinyl triethoxysilane, 0.6-1 part of N-methyl methacrylate, 1-2 parts of graphene, 5-9 parts of triphenyl phosphate and 1-3 parts of calcium lignosulfonate, and the modified kaolin is uniformly dispersed in a dispersing agent.
The preparation method of the light high-strength straw board for the inner wall comprises the following steps: the first step is as follows: taking loose and clean straws, crushing the straws to a particle size of less than 15mm, and then drying the straws at a temperature of between 80 and 100 ℃ until the water content is between 3 and 5 percent; the second step is that: adding a filler, a metal oxide and a halogen-free flame-retardant adhesive into the dried straws, carrying out hot press molding in a hot press molding device, wherein the inner mold of the hot press molding device is a serrated mold with upper and lower surfaces, and carrying out moisture retention and maintenance after demolding, wherein a hot press curve during hot press molding is shown in figure 1; the third step: cooling the hot-pressed straw board blank by a cooling belt, and feeding the cooled straw board blank into a straw board cutting device for cutting; cutting, conveying to a sealing machine for sealing, and preparing a straw board core; the fourth step: taking the end-capped straw board core, sequentially scraping sulphoaluminate cement with the thickness of 0.5mm on six surfaces of the straw board core, then placing the straw board core in a hot-pressing and shaping device, and cooling the straw board core after hot-pressing and shaping; the fifth step: after cooling, the mixture is polished to be flat by 400-mesh sand paper and 600-mesh sand paper, and after 48 hours, the mixture is evenly sprayed with 1-2 coatings with the dosage of 0.16kg/m2And drying to obtain the finished product.
The straws are one or more of sugarcane straws, rice straw straws, corn straws, wheat straws and sorghum straws, and are prepared by three working procedures of screening, washing, impurity removal, spraying of insect-proof antibacterial liquid, crushing and drying and dehydration; the insect-proof antibacterial liquid is prepared by mixing and decocting 30-50 parts of peppermint oil, 6-10 parts of wormwood, 6-10 parts of fennel, 11-15 parts of lemongrass and 1-5 parts of calamus according to the mass part ratio, adding water with the mass being 8-10 times of the total mass during decoction, and decocting for 30-50 min; and cooling the decocted solution, adding 80 times of purified water by mass, and uniformly mixing to obtain the spray for use.
The preparation method of the modified kaolin comprises the following steps: calcining kaolin at 680-720 ℃ for 3-5h, cooling to normal temperature, then placing the calcined kaolin in 10-15% hydrochloric acid solution, heating in water bath to 70-80 ℃, preserving heat for 30-40min, filtering, washing filter residue to be neutral by using distilled water, drying, then adding 6-10% sepiolite powder, 4-6% vermiculite powder, 3-5% asbestos powder, 2-4% calcium lignosulfonate and 0.5-1% gamma-aminopropyltriethoxysilane which are equivalent to the weight of the kaolin, and grinding at high speed for 20-30 min; finally, adding silica sol which accounts for 10-15% of the weight of the kaolin, 3-5% of sodium tripolyphosphate and 5-10% of plant ash, stirring at a high speed for 10-15min, drying, calcining at 960-.
The sulphoaluminate cement also contains 0.5 part of high boiling point silicon alcohol water repellent and 0.4-0.8 part of ether amine water reducing agent according to the mass part ratio of 100 parts.
The filler comprises the following raw materials in parts by weight: 0.4-0.8 part of surfactant, 0.5-2 parts of dispersant, 16-20 parts of reinforcing fiber, 0.1-0.3 part of nano particle, 1-10 parts of metal oxide and 4-8 parts of plasticizer, wherein the surfactant is tributyl phosphate, the dispersant is sodium polycarboxylate, the reinforcing fiber is one or more of glass fiber, aramid fiber, carbon fiber, quartz fiber, basalt fiber and phenolic fiber, the metal oxide is one or more of magnesium oxide, aluminum oxide and barium oxide, the nano particle is one or more of nano silicon dioxide, nano titanium dioxide and nano zirconium dioxide, the particle size of the nano particle is 100-150nm, and the plasticizer is dibutyl phthalate.
The preparation method of the halogen-free flame retardant adhesive comprises the steps of dispersing a flame retardant and an emulsifier into water to form a water phase under the stirring condition that the stirring speed is 100-1000 r/min, dispersing a vinyl emulsion adhesive into the water phase, adding a flatting agent, stirring for 0.5-6 hours, adding a defoaming agent, and filtering to obtain the halogen-free flame retardant adhesive, wherein the using amount of the flame retardant is 1-100% of the weight of the vinyl emulsion adhesive; the using amount of the emulsifier is 0.1-20% of the weight of the vinyl emulsion adhesive; the using amount of water is 20-200% of the weight of the vinyl emulsion adhesive; the usage amount of the flatting agent is 0.1-10% of the weight of the vinyl emulsion adhesive; the usage amount of the defoaming agent is 0.1-10% of the weight of the vinyl emulsion adhesive.
The flame retardant is a solid flame retardant, a liquid flame retardant or a mixture of the solid flame retardant and the liquid flame retardant, and the mixing ratio of the solid flame retardant and the liquid flame retardant is any ratio; wherein the liquid flame retardant is one or a mixture of more than one of dimethyl methylphosphonate (DMMP), triisopropylphenyl phosphate (IPPP) and phosphoric acid; the solid flame retardant is one or a mixture of more than one of magnesium hydroxide, aluminum hydroxide, ammonium polyphosphate, triphenyl phosphate, Melamine Cyanurate (MCA), melamine polyphosphate (MPP), zinc borate, red phosphorus and antimony trioxide; the solid particle size is 500-1500 meshes.
The vinyl emulsion adhesive is one of styrene-acrylic emulsion, vinyl acetate-acrylic emulsion, acrylic emulsion or vinyl acetate-ethylene copolymer emulsion (VAE emulsion), the emulsifier is sodium hexametaphosphate or a mixture of two or more of sodium dodecyl sulfate (SLS), polyoxyethylene nonylphenol ether (OP), sodium octylphenol polyoxyethylene ether maleate (OS), polyethylene glycol 200, polyethylene glycol 400 and sodium hexametaphosphate, the proportion is any ratio, the leveling agent is one of polydimethylsiloxane and polyether modified derivatives thereof, the defoaming agent is one of mineral oil defoaming agent or organic siloxane defoaming agent, and the leveling agent is F-2307 or BYK-331; the antifoaming agent is F111 or SXP-107.
A mixture of 100g of dimethyl methylphosphonate (DMMP) and 10g of sodium dodecyl sulfate (SLS), polyoxyethylene nonylphenol ether (OP) and sodium octylphenol polyoxyethylene ether maleate (OS) was added to 1000g of water under stirring at a speed of 100 rpm, 1000g of styrene-acrylic emulsion and 1g of polydimethylsiloxane were added, and stirring was carried out for 0.5 hour, and finally 1g F111 antifoaming agent was added. The performance results of the prepared flame-retardant adhesive are shown in the attached table.
When the light high-strength straw board for the inner wall is applied, the surface of a wall body base material is firstly subjected to smooth and clean treatment, oil stain is removed, a pointing joint is filled, 2-3 times of sulphoaluminate cement is scraped when the ambient temperature is more than or equal to 5 ℃ and the humidity is more than or equal to 80 percent, and the light high-strength straw board for the inner wall is usedThe amount is 2-4kg/m2Leveling by a spatula, polishing by 400-plus 600-mesh sand paper, and rolling and coating a halogen-free flame-retardant adhesive for 48 hours, wherein the dosage of the halogen-free flame-retardant adhesive is 0.12kg/m2Then the straw board is bonded with the inner wall by using the light high-strength straw board.
The specific properties of the halogen-free flame retardant adhesive in examples 1-2 are shown in the following table:
flame retardant adhesives generally require a homogeneous emulsion; the viscosity of the adhesive prepared by the method is 100-600mPa & s, so that the adhesive is easy to glue and meets the requirement of the gluing amount; the oxygen index of the adhesive prepared by the method is basically more than or equal to 30, the adhesive can be self-extinguished, and the flame-retardant requirement of the flame-retardant material can be met.
The viscosity measurement is performed by using an NDJ-1 rotational viscometer (Shanghai balance instrument factory);
the oxygen index measurement is carried out by adopting a JF-3 type oxygen index tester (Jiangning district analytical instrument factory in Nanjing city) according to the GB/T2406-93 standard.
The thermal conductivity is characterized according to a GB/T3399-1982 plastic thermal conductivity coefficient test method-a heat protection plate method, and the thermal conductivity test result is as follows:
| thermal conductivity (W/m-stroke K) | |
| Example 1 | 0.133 |
| Example 2 | 0.132 |
According to the GB/T8813-2008 rigid foam compression performance determination method, the compression strength is characterized, and the experimental result of the compression strength is as follows:
| compressive Strength (MPa) | |
| Example 1 | 2.716 |
| Example 2 | 2.705 |
The high temperature resistance is characterized according to a GB/T5589-2008 refractories load softening temperature test method, and the heat resistance temperature test results are as follows:
| heat resistance temperature (. degree. C.) | |
| Example 1 | 1510 |
| Example 2 | 1505 |
The density is characterized according to the test method of the physicochemical properties of the GB T17657-containing 2013 artificial board and the veneer artificial board, and the density test result is as follows:
| density (g/cm)2) | |
| Example 1 | 0.764 |
| Example 2 | 0.761 |
The impact strength is characterized according to GB/T1843-1996, the tensile strength is referred to GB T17657-:
| impact Strength (KJ/m)2) | Tensile strength MPa | |
| Example 1 | 2.22 | 1.9 |
| Example 2 | 2.17 | 1.5 |
The above examples are merely illustrative for clarity and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. The utility model provides a light weight, high strength straw board for interior wall which characterized in that: the light high-strength straw board for the inner wall is composed of a cement mortar layer, a straw board core and a coating, wherein the cement mortar layer is made of sulphoaluminate cement, and the straw board core is prepared from the following raw materials in parts by weight: 40-80 parts of straw, 1-2 parts of filler, 4-6 parts of metal oxide and 5-15 parts of halogen-free flame retardant adhesive; the coating comprises the following raw materials in parts by weight: 100 parts of acrylate, 4-8 parts of ammonium dihydrogen phosphate, 6-10 parts of modified kaolin, 6-10 parts of sodium dihydrogen phosphate, 0.5-5 parts of potassium tetraborate, 0.05-0.5 part of vinyl triethoxysilane, 0.6-1 part of N-methyl methacrylate, 1-2 parts of graphene, 5-9 parts of triphenyl phosphate and 1-3 parts of calcium lignosulfonate, and the modified kaolin is uniformly dispersed in a dispersing agent.
2. A method for preparing a light high-strength straw board for an inner wall according to claim 1, which comprises the following steps: the first step is as follows: taking loose and clean straws, crushing the straws to a particle size of less than 15mm, and then drying the straws at a temperature of between 80 and 100 ℃ until the water content is between 3 and 5 percent; the second step is that: adding a filler, a metal oxide and a halogen-free flame-retardant adhesive into the dried straws, carrying out hot press forming in a hot press forming device, wherein the inner die of the hot press forming device is a die with upper and lower surfaces in a zigzag manner, and carrying out moisture preservation and maintenance after demoulding; the third step: the hot-pressed straw board blank is cooled by a cooling belt and enters the straw board to be cut and assembled after being cooledPerforming cutting treatment; cutting, conveying to a sealing machine for sealing, and preparing a straw board core; the fourth step: taking the end-capped straw board core, sequentially scraping sulphoaluminate cement with the thickness of 0.5mm on six surfaces of the straw board core, then placing the straw board core in a hot-pressing and shaping device, and cooling the straw board core after hot-pressing and shaping; the fifth step: after cooling, the mixture is polished to be flat by 400-mesh sand paper and 600-mesh sand paper, and after 48 hours, the mixture is evenly sprayed with 1-2 coatings with the dosage of 0.16kg/m2And drying to obtain the finished product.
3. The light-weight high-strength straw board for the inner wall according to claim 1, which is characterized in that: the straws are one or more of sugarcane straws, rice straw straws, corn straws, wheat straws and sorghum straws, and are prepared by three working procedures of screening, washing, impurity removal, spraying of insect-proof antibacterial liquid, crushing and drying and dehydration; the insect-proof antibacterial liquid is prepared by mixing and decocting 30-50 parts of peppermint oil, 6-10 parts of wormwood, 6-10 parts of fennel, 11-15 parts of lemongrass and 1-5 parts of calamus according to the mass part ratio, adding water with the mass being 8-10 times of the total mass during decoction, and decocting for 30-50 min; and cooling the decocted solution, adding 80 times of purified water by mass, and uniformly mixing to obtain the spray for use.
4. The light-weight high-strength straw board for the inner wall according to claim 1, which is characterized in that: the preparation method of the modified kaolin comprises the following steps: calcining kaolin at 680-720 ℃ for 3-5h, cooling to normal temperature, then placing the calcined kaolin in 10-15% hydrochloric acid solution, heating in water bath to 70-80 ℃, preserving heat for 30-40min, filtering, washing filter residue to be neutral by using distilled water, drying, then adding 6-10% sepiolite powder, 4-6% vermiculite powder, 3-5% asbestos powder, 2-4% calcium lignosulfonate and 0.5-1% gamma-aminopropyltriethoxysilane which are equivalent to the weight of the kaolin, and grinding at high speed for 20-30 min; finally, adding silica sol which accounts for 10-15% of the weight of the kaolin, 3-5% of sodium tripolyphosphate and 5-10% of plant ash, stirring at a high speed for 10-15min, drying, calcining at 960-.
5. The preparation method of the light high-strength straw board for the inner wall according to claim 2, which is characterized in that: the sulphoaluminate cement also contains 0.5 part of high boiling point silicon alcohol water repellent and 0.4-0.8 part of ether amine water reducing agent according to the mass part ratio of 100 parts.
6. The light-weight high-strength straw board for the inner wall according to claim 1, which is characterized in that: the filler comprises the following raw materials in parts by weight: 0.4-0.8 part of surfactant, 0.5-2 parts of dispersant, 16-20 parts of reinforcing fiber, 0.1-0.3 part of nano particle, 1-10 parts of metal oxide and 4-8 parts of plasticizer, wherein the surfactant is tributyl phosphate, the dispersant is sodium polycarboxylate, the reinforcing fiber is one or more of glass fiber, aramid fiber, carbon fiber, quartz fiber, basalt fiber and phenolic fiber, the metal oxide is one or more of magnesium oxide, aluminum oxide and barium oxide, the nano particle is one or more of nano silicon dioxide, nano titanium dioxide and nano zirconium dioxide, the particle size of the nano particle is 100-150nm, and the plasticizer is dibutyl phthalate.
7. The light-weight high-strength straw board for the inner wall according to claim 1, which is characterized in that: the preparation method of the halogen-free flame retardant adhesive comprises the steps of dispersing a flame retardant and an emulsifier into water to form a water phase under the stirring condition that the stirring speed is 100-1000 r/min, dispersing a vinyl emulsion adhesive into the water phase, adding a flatting agent, stirring for 0.5-6 hours, adding a defoaming agent, and filtering to obtain the halogen-free flame retardant adhesive, wherein the using amount of the flame retardant is 1-100% of the weight of the vinyl emulsion adhesive; the using amount of the emulsifier is 0.1-20% of the weight of the vinyl emulsion adhesive; the using amount of water is 20-200% of the weight of the vinyl emulsion adhesive; the usage amount of the flatting agent is 0.1-10% of the weight of the vinyl emulsion adhesive; the usage amount of the defoaming agent is 0.1-10% of the weight of the vinyl emulsion adhesive.
8. The light-weight high-strength straw board for the inner wall according to claim 7, wherein: the flame retardant is a solid flame retardant, a liquid flame retardant or a mixture of the solid flame retardant and the liquid flame retardant, and the mixing ratio of the solid flame retardant and the liquid flame retardant is any ratio; wherein the liquid flame retardant is one or a mixture of more than one of dimethyl methylphosphonate (DMMP), triisopropylphenyl phosphate (IPPP) and phosphoric acid; the solid flame retardant is one or a mixture of more than one of magnesium hydroxide, aluminum hydroxide, ammonium polyphosphate, triphenyl phosphate, Melamine Cyanurate (MCA), melamine polyphosphate (MPP), zinc borate, red phosphorus and antimony trioxide; the solid particle size is 500-1500 meshes.
9. The light-weight high-strength straw board for the inner wall according to claim 1, which is characterized in that: the vinyl emulsion adhesive is one of styrene-acrylic emulsion, vinyl acetate-acrylic emulsion, acrylic emulsion or vinyl acetate-ethylene copolymer emulsion (VAE emulsion), the emulsifier is sodium hexametaphosphate or a mixture of two or more of sodium dodecyl sulfate (SLS), polyoxyethylene nonylphenol ether (OP), sodium octylphenol polyoxyethylene ether maleate (OS), polyethylene glycol 200, polyethylene glycol 400 and sodium hexametaphosphate, the proportion is any ratio, the leveling agent is one of polydimethylsiloxane and polyether modified derivatives thereof, the defoaming agent is one of mineral oil defoaming agent or organic siloxane defoaming agent, and the leveling agent is F-2307 or BYK-331; the antifoaming agent is F111 or SXP-107.
10. The use of the light-weight high-strength straw board for the inner wall in the partition board for the inner wall according to claim 1.
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| CN115609720A (en) * | 2022-11-03 | 2023-01-17 | 江苏中科睿赛污染控制工程有限公司 | Preparation method of high-temperature-resistant straw board |
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