Preparation method for environment-friendly building material
A kind of building material and environmental protection technology, which is applied in the field of preparation of environmental protection building materials, can solve the problems of poor thermal insulation performance, etc., and achieve the effects of good sound insulation effect, increased strength and good strength
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Embodiment 1
[0024] A preparation method of an environmentally friendly building material, comprising the following preparation steps:
[0025] a. Mix modified bentonite, phase-change aggregate, cryolite powder, organic fiber and expanded vitrified microbeads into a grinder, and ball mill for 3 hours to obtain powder;
[0026] b. Add the powder into the modified acrylic emulsion, stir at 70°C for 20 minutes, then raise the temperature to 80°C and stir for 15 minutes. During the stirring process, add the polyurethane composite emulsion dropwise until the stirring is completed to obtain a mixed solution;
[0027] c. Add compound additives dropwise to the mixed liquid while stirring, until the compound additives are added, then add anionic surfactant, compound sulfate and retarder, heat at 60°C and stir for 1 hour to obtain a mixture;
[0028] d. Put the mixture into the mold, carry out dehydration and pressure molding at 100°C, and after cooling to normal temperature, the finished product ca...
Embodiment 2
[0037] A preparation method of an environmentally friendly building material, comprising the following preparation steps:
[0038] a. Mix modified bentonite, phase change aggregate, cryolite powder, organic fiber and expanded vitrified microbeads into a grinder, and ball mill for 2 hours to obtain powder;
[0039] b. Add the powder into the modified acrylic emulsion, stir at 60°C for 10 minutes, then raise the temperature to 80°C and stir for 15 minutes. During the stirring process, add the polyurethane composite emulsion dropwise until the stirring is completed to obtain a mixed solution;
[0040] c. Add compound additives dropwise to the mixed liquid while stirring, until the compound additives are added, then add anionic surfactant, compound sulfate and retarder, heat at 60°C and stir for 1 hour to obtain a mixture;
[0041] d. Put the mixture into the mold, carry out dehydration and pressure molding at 90°C, and after cooling to normal temperature, the finished product can...
Embodiment 3
[0050] A preparation method of an environmentally friendly building material, comprising the following preparation steps:
[0051] a. Mix modified bentonite, phase-change aggregate, cryolite powder, organic fiber and expanded vitrified microbeads into a grinder, and ball mill for 3 hours to obtain powder;
[0052] b. Add the powder into the modified acrylic emulsion, stir at 70°C for 20 minutes, then raise the temperature to 80°C and stir for 20 minutes. During the stirring process, add the polyurethane composite emulsion dropwise until the stirring is completed to obtain a mixed solution;
[0053] c. Add compound additives dropwise to the mixed liquid while stirring, until the compound additives are added, then add anionic surfactant, compound sulfate and retarder, heat at 80°C and stir for 2 hours to obtain a mixture;
[0054] d. Put the mixture into the mold, carry out dehydration and pressure molding at 100°C, and after cooling to normal temperature, the finished product c...
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