阅读说明：本技术 一种轻质隔音阻燃环保墙板的制备方法 (Preparation method of light sound-proof flame-retardant environment-friendly wallboard ) 是由 王俊鹏 于 2019-10-17 设计创作，主要内容包括：本发明公开了一种轻质隔音阻燃环保墙板的制备方法,本发明属于墙板加工技术领域,本发明公开的制备方法制备的墙板具有质量轻、强度高、多重环保、保温隔热、隔音、呼吸调湿、防火、快速施工、降低墙体成本等优点,适用范围广,具有其他材料无法比拟的保温隔热效果,且阻燃,绿色环保,防酸碱,耐腐蚀,不易老化,使用寿命长,是一种综合性能良好的轻质保温隔热材料。(The invention discloses a preparation method of light sound-proof flame-retardant environment-friendly wallboards, which belongs to the technical field of wallboard processing, and the wallboards prepared by the preparation method disclosed by the invention have the advantages of light weight, high strength, multiple environment protection, heat preservation and insulation, sound insulation, breathing and humidifying, fire prevention, rapid construction, wall body cost reduction and the like, have an application range of , have incomparable heat preservation and insulation effects compared with other materials, are flame-retardant, environment-friendly, acid-base-resistant, corrosion-resistant, difficult to age and long in service life, and are light heat preservation and insulation materials with good comprehensive performance.)

, weighing 10-15 parts of propyl trimethoxy silane, 10-13 parts of ethyl orthosilicate and 5-7 parts of diphenyl dimethoxy silane, dissolving in 25-33 parts of methanol to obtain a silicon-containing methanol mixed solution, uniformly dispersing 2.5-3.3 parts of nano silicon dioxide in 5-7 parts of deionized water, 10-25 parts of ethanol and 0.1-0.2 part of hydrochloric acid solution with the mass fraction of 12-14.3%, uniformly dispersing the mixed solution in a reaction kettle, violently stirring for 3-5 min at 70-80 ℃, adding the silicon-containing methanol mixed solution, continuously carrying out heat preservation reaction and stirring for 2-3 h, dropwise adding 4-7 parts of acetic acid solution with the mass fraction of 3-5%, hydrolyzing for 4-6 h at 50-60 ℃, cooling to 30 ℃ to obtain stable aerogel, slowly dropwise adding 5-8 parts of ammonia water with the mass fraction of 10-12% while stirring at 25-30 ℃, continuously stirring, transferring the sol into a glass container or transferring the glass container to a container after hydrolysis for 4-6 h, cooling to 30 ℃, naturally drying, heating and keeping the sol in a temperature for gelation at 60-60 ℃, and drying for 12-5 h, and naturally heating to obtain gel after gelation;

secondly, 45-50 parts of sericite powder with the thickness less than 400 meshes, 10-20 parts of aluminum oxide, 7-9 parts of polycarbosilane, 11-13 parts of modified expanded perlite, 11-12 parts of barium sulfate, 2-4 parts of zinc oxide, 12-16 parts of modified microcrystalline cellulose, 0.2-0.4 part of thickening agent and 8-10 parts of zirconium dioxide are added with 43-54 parts of water and 0.3-0.5 part of sodium tripolyphosphate and then put into a ball mill for ball milling to obtain a slurry-shaped bottom layer material;

thirdly, uniformly mixing 35-43 parts of silicon dioxide, 8-10 parts of aluminum oxide, 13-15 parts of polycarbosilane, 2-3 parts of cordierite powder, 11-14 parts of modified expanded perlite, 3-5 parts of zirconium dioxide, 2.5-2.8 parts of zircon powder and 3-5 parts of modified aerogel obtained in the step , sieving with a 70-mesh sieve, and taking the sieved part to obtain middle-layer slurry;

fourthly, punching and firing the wallboard: and after the slurry of the middle layer and the slurry-like bottom layer are distributed in a layered manner, stamping the materials into a biscuit with a bottom layer and a middle layer, wherein the thickness of the middle layer is 1/3 of the thickness of the bottom layer, drying the biscuit for 2-3 h at 45-55 ℃, firing the biscuit in a kiln at the firing temperature of 1150-1200 ℃ for 30-60 min, and polishing and edging the cooled product after firing to obtain the light sound-insulation flame-retardant environment-friendly wallboard.

2. The preparation method of the lightweight, sound-proof, flame-retardant and environment-friendly wallboard according to claim 1, wherein the modified microcrystalline cellulose in the second step is hydrogel of modified nanocrystalline cellulose prepared by mixing 100 parts of cyanuric chloride halogenated nanocrystalline cellulose with 78-85 parts of ethanol solution of KH-550 with a mass fraction of 2-5% at 70-75 ℃ and stirring for reaction for 0.5-1 h.

3. The method for preparing the lightweight soundproof, flame retardant and environmentally friendly wallboard according to claim 1, wherein the thickener in the second step is kinds of carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose or hydroxypropyl cellulose.

4. The method for preparing the lightweight sound-insulating flame-retardant environment-friendly wallboard according to claim 1, characterized in that the modified expanded perlite in the second step and the third step is inorganic vitrified micro-bead modified expanded perlite.

5. The method for preparing the lightweight, sound-insulating, flame-retardant and environment-friendly wallboard according to claim 1, wherein the polycarbosilane of the second step is a low molecular polycarbosilane with viscosity of 1500-4000 mPa-s.

Technical Field

The invention belongs to the technical field of wallboard processing, and particularly relates to a preparation method of light sound-insulation flame-retardant environment-friendly wallboards.

Background

The light wall board is a short-for-life light partition board for buildings, and is a light partition board formed by combining panels with calcium silicate boards on two sides, polyester particle cement foaming sandwich in the middle and high-temperature autoclaved, and tenon mortises and joint grooves are arranged on two sides of the light wall board, so that the light partition board has the advantages of light weight, high strength, multiple environmental protection, heat preservation, heat insulation, sound insulation, breathing humidifying, fire prevention, rapid construction, wall cost reduction and the like, is favored and used, the light partition board is novel energy-saving and environment-friendly wall materials, is widely applied to novel green and energy-saving building inner partition walls in the stage, of the product is excellent in application performance, simple and easy to master in installation and operation, of market prospect is wide, construction is simple and convenient, labor intensity is reduced, construction progress is accelerated, total construction cost is saved, is a new star which is raised seriously in building industry, energy-saving and light partition boards in the market are not really novel energy-saving and environment-friendly wall boards which contain polystyrene particles, are difficult to recycle, have obvious defects of flame resistance, low strength and the development of the environment-friendly and energy-saving economic benefits of the development of the light partition board.

Disclosure of Invention

In order to solve the problems, the invention aims to provide a preparation method of lightweight sound-proof flame-retardant environment-friendly wall boards.

The invention is realized by the following technical scheme:

, weighing 10-15 parts of propyl trimethoxy silane, 10-13 parts of ethyl orthosilicate and 5-7 parts of diphenyl dimethoxy silane, dissolving the propyl trimethoxy silane and the ethyl orthosilicate in 25-33 parts of methanol to obtain a silicon-containing methanol mixed solution, uniformly dispersing 2.5-3.3 parts of nano silicon dioxide in 5-7 parts of deionized water, 10-25 parts of ethanol and 0.1-0.2 part of hydrochloric acid solution with the mass fraction of 12-14.3%, uniformly dispersing the mixed solution in a reaction kettle, violently stirring for 3-5 min at 70-80 ℃, adding the silicon-containing methanol mixed solution, continuously preserving heat, stirring for 2-3 h, dropwise adding 4-7 parts of acetic acid solution with the mass fraction of 3-5%, hydrolyzing for 4-6 h at 50-60 ℃, cooling to 30 ℃ to obtain stable sol, slowly dropwise adding 5-8 parts of ammonia water with the mass fraction of 10-12% under stirring at 25-30 ℃, continuously stirring, transferring the sol into a glass test tube or an autoclave, cooling to 30 ℃, naturally drying the sol, heating and keeping the sol for gelation, drying for 5-15 h, and naturally heating for 5-5 h to obtain aerogel gel;

secondly, 45-50 parts of sericite powder with the thickness less than 400 meshes, 10-20 parts of aluminum oxide, 7-9 parts of polycarbosilane, 11-13 parts of modified expanded perlite, 11-12 parts of barium sulfate, 2-4 parts of zinc oxide, 12-16 parts of modified microcrystalline cellulose, 0.2-0.4 part of thickening agent and 8-10 parts of zirconium dioxide are added with 43-54 parts of water and 0.3-0.5 part of sodium tripolyphosphate and then put into a ball mill for ball milling to obtain a slurry-shaped bottom layer material;

thirdly, uniformly mixing 35-43 parts of silicon dioxide, 8-10 parts of aluminum oxide, 13-15 parts of polycarbosilane, 2-3 parts of cordierite powder, 11-14 parts of modified expanded perlite, 3-5 parts of zirconium dioxide, 2.5-2.8 parts of zircon powder and 3-5 parts of modified aerogel obtained in the step , sieving with a 70-mesh sieve, and taking the sieved part to obtain middle-layer slurry;

fourthly, punching and firing the wallboard: and after the slurry of the middle layer and the slurry-like bottom layer are distributed in a layered manner, stamping the materials into a biscuit with a bottom layer and a middle layer, wherein the thickness of the middle layer is 1/3 of the thickness of the bottom layer, drying the biscuit for 2-3 h at 45-55 ℃, firing the biscuit in a kiln at the firing temperature of 1150-1200 ℃ for 30-60 min, and polishing and edging the cooled product after firing to obtain the light sound-insulation flame-retardant environment-friendly wallboard.

And , mixing 100 parts of cyanuric chloride halogenated nanocrystal cellulose and 78-85 parts of KH-550 ethanol solution with the mass fraction of 2-5%, stirring and reacting at 70-75 ℃ for 0.5-1 h to prepare the modified nanocrystal cellulose hydrogel.

, the step two thickening agent is kinds of carboxymethyl cellulose, carboxymethyl hydroxyethyl cellulose or hydroxypropyl cellulose.

, the modified expanded perlite in the second step and the third step is inorganic vitrified micro bubble modified expanded perlite.

, the polycarbosilane in the second step is low molecular polycarbosilane with the viscosity of 1500-4000 mPa.

The invention has the beneficial effects that:

the invention firstly adopts organic gel to synchronously prepare modified aerogel, long-chain organic silicon macromolecules penetrate through the gel, but the long-chain organic molecular polymers are not connected with a gel network, and long-chain organic molecular polymers are generated in situ along with the formation of a gel network structure to obtain the aerogel.

Compared with the prior art, the invention has the following advantages:

the light composite wallboard prepared by the preparation method disclosed by the invention has the characteristics of light weight, is only 1/16 of the weight of a brick-concrete structure, can greatly reduce longitudinal load, reduce the self weight of a building, reduce the construction cost, has good heat preservation performance, is non-combustible, has good sound insulation effect, has the advantages of hollow sound insulation quantity larger than 40 decibels, light weight, high strength, multiple environmental protection, heat preservation and insulation, sound insulation, breathing and humidity regulation, fire prevention, rapid construction, wall body cost reduction and the like, has an application range of , has incomparable heat preservation and insulation effects of other materials, is flame-retardant, green, environment-friendly, acid and alkali resistant, difficult to age, and long in service life, and is light heat preservation and heat insulation materials with good comprehensive performance.

Detailed Description

The invention is illustrated by the following specific examples, which are not intended to be limiting.