阅读说明：本技术 一种无机胶凝生物质功能装饰板及其制备方法 (Inorganic gelled biomass functional decorative plate and preparation method thereof ) 是由 孙丰文 巫佳杰 詹先旭 张茜 于 2019-11-19 设计创作，主要内容包括：本发明涉及一种无机胶凝生物质功能装饰板及其制备方法,该无机胶凝生物质功能装饰板由生物质无机胶凝基板和表面功能涂料构成,该功能装饰板可以用作室内吊顶和内墙装饰材料,该功能装饰板不燃、无醛、隔声、尺寸稳定,有利于改善空气质量,促进农林剩余物和木竹加工剩余物的高效利用,替代占据大部分市场的、石膏板、玻镁板,弥补木质家装板之不足。(The invention relates to an inorganic gelled biomass functional decorative board and a preparation method thereof, the inorganic gelled biomass functional decorative board is composed of a biomass inorganic gelled substrate and a surface functional coating, the functional decorative board can be used as an indoor ceiling and interior wall decorative material, the functional decorative board is non-combustible, free of aldehyde, sound-proof and stable in size, is beneficial to improving air quality, promotes efficient utilization of agriculture and forestry residues and wood and bamboo processing residues, replaces gypsum boards and glass magnesium boards occupying most markets, and makes up for the defects of wooden home-mounted boards.)

1. An inorganic gelatinization living beings function decorative board which characterized in that: the paint consists of a biomass inorganic gelled substrate and a surface functional paint;

the biomass inorganic gelled substrate comprises the following components in parts by mass: 100 parts of biomass material, 60-70 parts of magnesium oxide, 18-22 parts of anhydrous magnesium chloride, 75-100 parts of water, 1-4 parts of trisodium phosphate, 1-4 parts of magnesium sulfate, 20-30 parts of silicon micropowder, 0-3 parts of polymethyl triethoxysilane, 1-3 parts of calcium formate, 0.5-2 parts of NNO and 100.5-2 parts of OP-100.5;

wherein the surface functional coating comprises the following components in parts by mass: 100 parts of main resin, 2-5 parts of dodecyl alcohol ester, 0.5-2 parts of sodium polymethacrylate, 0.5-2 parts of polydimethylsiloxane, 5-10 parts of anhydrous magnesium chloride, 15-30 parts of magnesium oxide, 10-20 parts of titanium dioxide, 1-5 parts of chitin, 3-5 parts of oxygen anion powder and 0-10 parts of color paste.

2. The inorganic cementitious biomass functional decorative panel of claim 1, wherein: the biomass material is a powdery biomass material, a fibrous material or a mixture thereof; wherein the powder size of the powdery biomass material is 30-60 meshes, and the fiber length of the fibrous material is less than 20 mm.

3. The inorganic cementitious biomass functional trim panel of claim 2, wherein: the powdery biomass material is wood powder, straw powder, bamboo powder or a mixture thereof; the fibrous material is wood fiber, bamboo fiber, palm fiber or their mixture.

4. The inorganic cementitious biomass functional decorative panel of claim 1, wherein: the main resin is pure acrylic emulsion, vinyl acetate acrylic emulsion, styrene-acrylic emulsion or a mixture thereof.

5. The method for preparing the inorganic gelling biomass functional decorative sheet according to claim 1, wherein: the method comprises the following steps:

the method comprises the following steps: weighing various raw materials in proportion;

step two: dissolving one fourth of the total amount of anhydrous magnesium chloride in one fourth of water in the raw materials to prepare a magnesium chloride aqueous solution, and uniformly spraying the magnesium chloride aqueous solution into the biomass material;

step three: uniformly mixing all the magnesium oxide, magnesium sulfate, silicon micropowder and biomass material to prepare a mixed material;

step four: dissolving the rest anhydrous magnesium chloride in the rest water to prepare a magnesium chloride aqueous solution, and then adding trisodium phosphate, polymethyl triethoxy silane, calcium formate, NNO and OP-10 to prepare a mixed solution;

step five: adding the mixed solution into the mixed material prepared in the third step, and quickly stirring and uniformly mixing to prepare mixed slurry;

step six: uniformly paving the mixed slurry in a mould, compacting, and demoulding after 10-30 min; then putting the mixture into a hot press for hot pressing, releasing pressure and discharging, and then carrying out cold pressing; stacking and maintaining for 24-72 h at room temperature; cutting edges, fixing thickness and sanding to prepare an inorganic gel biological plate;

step seven: weighing the main resin, sequentially adding the dodecanol ester, the sodium polymethacrylate, the polydimethylsiloxane, the anhydrous magnesium chloride, the magnesium oxide, the titanium dioxide, the chitin, the oxygen anion powder and the color paste components according to the proportion, and uniformly stirring to prepare the surface functional coating;

step eight: uniformly brushing one-to-two times of surface functional coating on the surface of the inorganic gel biomass plate, wherein the brushing amount is 120-300 g/m²(ii) a Drying at normal temperature or low temperature to obtain the inorganic gel biomass functional decorative plate.

6. The method for preparing the inorganic gelling biomass functional decorative sheet according to claim 5, wherein: the hot pressing condition in the sixth step is as follows: hot pressing at a unit pressure of 1.2-1.6 MPa and a temperature of 105-125 ℃ for 1.2-2.0 min/mm.

7. The method for preparing the inorganic gelling biomass functional decorative sheet according to claim 5, wherein: the cold pressing conditions in the sixth step are as follows: cold pressing for 30-60 min under the pressure of 1.0-1.4 MPa.

8. The method for preparing the inorganic gelling biomass functional decorative sheet according to claim 5, wherein:

and step eight, uniformly brushing the surface functional coating on the surface of the inorganic gelled biomass plate twice, wherein the interval time between the two brushing is 5-10 min.

Technical Field

The invention relates to the technical field of building materials and artificial boards, in particular to an inorganic gelled biomass functional decorative board and a preparation method thereof.

Background

The decoration materials used for indoor decoration in China each year are billions of yuan RMB, and the market capacity is huge. With the development of the economic society and the improvement of human civilization, people have higher and higher pursuits on the quality of the living room environment, such as no aldehyde, flame retardance and even health care function, and have stricter standard requirements at home and abroad, which provides wide development space for the research and development of new indoor decoration materials. The magnesium oxychloride fireproof board has the advantages of low material cost, wide source, simple production process equipment, easy realization of automatic control, non-combustibility, no aldehyde and the like, is a novel fireproof decorative board following a gypsum board, is widely used for indoor suspended ceilings and simple partition wall materials, but has the defects of halogen return, moisture absorption deformation, poor waterproofness, large specific gravity, low strength and the like, so the application grade of the product is lower.

The agricultural and forestry processing residue waste generated in China every year reaches hundreds of millions of tons, so that the environmental pollution and the great waste of resources are caused, the waste resources are fully utilized and perfectly compounded with the magnesium oxychloride inorganic cementing material with wide material source and low price, and the novel functional decorative board which is non-combustible, aldehyde-free, sound-proof, stable in size and capable of improving the air quality is prepared.

Disclosure of Invention

The invention aims to provide an inorganic gel biomass functional decorative board and a preparation method thereof, the functional decorative board can be used as an indoor ceiling and interior wall decorative material, is non-combustible, free of aldehyde, sound-proof and stable in size, is beneficial to improving air quality, promotes efficient utilization of agriculture and forestry residues and wood and bamboo processing residues, replaces gypsum boards and glass magnesium boards occupying most markets, and makes up for the defects of wooden home decoration boards.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

an inorganic gelled biomass functional decorative board is composed of a biomass inorganic gelled substrate and a surface functional coating;

the biomass inorganic gelled substrate comprises the following components in parts by mass: 100 parts of biomass material, 60-70 parts of magnesium oxide, 18-22 parts of anhydrous magnesium chloride, 75-100 parts of water, 1-4 parts of trisodium phosphate, 1-4 parts of magnesium sulfate, 20-30 parts of silicon micropowder, 0-3 parts of polymethyl triethoxysilane, 1-3 parts of calcium formate, 0.5-2 parts of NNO and 100.5-2 parts of OP-100.5;

wherein the surface functional coating comprises the following components in parts by mass: 100 parts of main resin, 2-5 parts of dodecyl alcohol ester, 0.5-2 parts of sodium polymethacrylate, 0.5-2 parts of polydimethylsiloxane, 5-10 parts of anhydrous magnesium chloride, 15-30 parts of magnesium oxide, 10-20 parts of titanium dioxide, 1-5 parts of chitin, 3-5 parts of oxygen anion powder and 0-10 parts of color paste.

The biomass material is a powdery biomass material, a fibrous material or a mixture thereof; wherein the powder size of the powdery biomass material is 30-60 meshes, and the fiber length of the fibrous material is less than 20 mm.

The powdery biomass material is wood powder, straw powder, bamboo powder or a mixture thereof; the fibrous material is wood fiber, bamboo fiber, palm fiber or their mixture.

The main resin is pure acrylic emulsion, vinyl acetate acrylic emulsion, styrene-acrylic emulsion or a mixture thereof.

The invention also discloses a preparation method of the inorganic gel biomass functional decorative plate, which comprises the following steps:

the method comprises the following steps: weighing various raw materials in proportion;

step two: dissolving one fourth of the total amount of anhydrous magnesium chloride in one fourth of water in the raw materials to prepare a magnesium chloride aqueous solution, and uniformly spraying the magnesium chloride aqueous solution into the biomass material;

step three: uniformly mixing all the magnesium oxide, magnesium sulfate, silicon micropowder and biomass material to prepare a mixed material;

step four: dissolving the rest anhydrous magnesium chloride in the rest water to prepare a magnesium chloride aqueous solution, and then adding trisodium phosphate, polymethyl triethoxy silane, calcium formate, NNO and OP-10 to prepare a mixed solution;

step five: adding the mixed solution into the mixed material prepared in the third step, and quickly stirring and uniformly mixing to prepare mixed slurry;

step six: uniformly paving the mixed slurry in a mould, compacting, and demoulding after 10-30 min; then putting the mixture into a hot press for hot pressing, releasing pressure and discharging, and then carrying out cold pressing; stacking and maintaining for 24-72 h at room temperature; cutting edges, fixing thickness and sanding to prepare an inorganic gel biological plate;

step seven: weighing the main resin, sequentially adding the dodecanol ester, the sodium polymethacrylate, the polydimethylsiloxane, the anhydrous magnesium chloride, the magnesium oxide, the titanium dioxide, the chitin, the oxygen anion powder and the color paste components according to the proportion, and uniformly stirring to prepare the surface functional coating;

step eight: uniformly brushing one-to-two times of surface functional coating on the surface of the inorganic gel biomass plate, wherein the brushing amount is 120-300 g/m²(ii) a Drying at normal temperature or low temperature to obtain the inorganic gel biomass functional decorative plate.

The hot pressing condition in the sixth step is as follows: hot pressing at a unit pressure of 1.2-1.6 MPa and a temperature of 105-125 ℃ for 1.2-2.0 min/mm.

The cold pressing conditions in the sixth step are as follows: cold pressing for 30-60 min under the pressure of 1.0-1.4 MPa.

And step eight, uniformly brushing the surface functional coating on the surface of the inorganic gelled biomass plate twice, wherein the interval time between the two brushing is 5-10 min.

Compared with the prior art, the invention has the beneficial effects that:

(1) the preparation scheme has wide adaptability to various biomass materials, and improves the utilization value of agricultural and forestry residues;

(2) the product prepared by the invention has the flame retardant property of gypsum boards and glass magnesium boards, has higher static bending strength and elastic modulus, and overcomes the defects of easy moisture regain, halogen regain and the like of gypsum boards, glass magnesium boards and the like;

(3) the product prepared by the invention still has good dimensional stability under the condition of high water absorption rate, has the humidity 'breathing' function, and has the auxiliary effects of adjusting the indoor air humidity and the like;

(4) the surface of the inorganic gel biomass functional decorative plate has the functions of resisting bacteria, inducing oxygen anions and the like, and improves the indoor air quality.

Detailed Description

The present invention will be further described with reference to the following specific examples.