Antibacterial and environment-protection building joint mixture
A technology for caulking and construction. It is applied in the direction of adhesives, adhesive additives, polymer adhesive additives, etc. It can solve the problems of affecting sanitation and appearance, blackening of the color of the caulking agent, and emitting pungent odors. Good for cleaning, improving smoothness, improving fluidity and antibacterial effect
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Embodiment 1
[0018] An antibacterial and environmentally friendly building sealant, made of the following raw materials in parts by weight: water-based acrylic resin 33, natural latex 27, starch glue 21, waste porcelain powder 16, nano eggshell powder 11, sodium methyl silicate 7 , Polycarboxylate superplasticizer 6.3, zinc sulfate 4.2, nano-titanium dioxide 3.4, tourmaline anion powder 1.5.
[0019] For the nano-eggshell powder, crush eggshells to 80 mesh, add protease solution twice the weight of eggshells to make the concentration of protease 40ppm, stir and enzymolyze at 40°C for 40min, filter, freeze-dry until moisture-free , ball milled to a particle size of 50nm to obtain nano eggshell powder.
[0020] For the waste ceramic powder, after crushing the waste ceramics, heat it in vacuum to 460°C, keep it warm for 30 minutes, cool it down to 140°C naturally, add 70% of the weight of the waste ceramics into a 7% acetic acid solution, mix evenly, and naturally drop to At room temperature...
Embodiment 2
[0027] An antibacterial and environmentally friendly building sealant, made of the following raw materials in parts by weight: water-based acrylic resin 34, natural latex 28, starch glue 22, waste porcelain powder 17, nano eggshell powder 12, sodium methyl silicate 8 , Polycarboxylate superplasticizer 6.4, zinc sulfate 4.3, nano-titanium dioxide 3.5, tourmaline anion powder 1.6.
[0028] For the nano-eggshell powder, crush the eggshells to 90 mesh, add protease solution 2.5 times the weight of eggshells to make the concentration of protease 45ppm, stir and enzymolyze at 43°C for 50min, filter, and freeze-dry until moisture-free , and ball milled to a particle size of 55nm to obtain nano eggshell powder.
[0029] For the waste ceramic powder, after crushing the waste ceramics, heat it in vacuum to 490°C, keep it warm for 35 minutes, cool it down to 160°C naturally, add 75% of the weight of the waste ceramics into an 8% acetic acid solution, mix evenly, and naturally drop to At...
Embodiment 3
[0036] An antibacterial and environmentally friendly building sealant, made of the following raw materials in parts by weight: water-based acrylic resin 35, natural latex 29, starch glue 23, waste porcelain powder 18, nano eggshell powder 13, sodium methyl silicate 9 , Polycarboxylate superplasticizer 6.5, zinc sulfate 4.4, nano-titanium dioxide 3.6, tourmaline anion powder 1.7.
[0037] For the nano-eggshell powder, crush eggshells to 100 mesh, add protease solution 3 times the weight of eggshells, so that the concentration of protease is 50ppm, stir and enzymolyze at 45°C for 60min, filter, freeze-dry until moisture-free , ball milled to a particle size of 60nm to obtain nano eggshell powder.
[0038] For the waste ceramic powder, after crushing the waste ceramics, heat it in vacuum to 520°C, keep it warm for 40 minutes, cool it down to 180°C naturally, add 80% of the weight of the waste ceramics into an acetic acid solution with a volume fraction of 9%, mix evenly, and natu...
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