A kind of magnetic bactericidal thermal insulation coating and preparation method thereof
A thermal insulation coating and magnetic technology, applied in magnetic coatings, conductive coatings, anti-corrosion coatings, etc., can solve the problems of single coating performance, low mechanical strength, poor water resistance, etc.
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Embodiment 1
[0040] The formula of the magnetic bactericidal thermal insulation coating is (wt%): 19% acrylic emulsion, 11% hollow glass microspheres, 12% magnetic-absorbing-bactericidal additives, SiO 2 Base insulation composite fiber 13%, rutile titanium dioxide 7%, sepiolite powder 7%, calcined kaolin 8%, polyethylene glycol 200 dispersant 1%, silicone defoamer 1%, cellulose acetate thickener 3 %, water 18%.
[0041] The preparation method is as follows:
[0042] 1. Preparation of MFe 2 o 4 hollow fiber
[0043] (1) Fe(CH 3 COO) 3 and Mn(CH 3 COO) 2 Added into absolute ethanol, stirred to obtain a transparent solution, then added PVP, stirred for 12 h, obtained a transparent solution of iron and manganese, wherein, Fe(CH 3 COO) 3 The concentration in the transparent solution is 0.16 mol / L, PVP and Fe(CH 3 COO) 3 The molar ratio of PVP is 1:0.15, and the molar amount of PVP is calculated according to the molar amount of its polymerized monomer;
[0044] According to the molar...
Embodiment 2
[0062] The formula of the magnetic bactericidal thermal insulation coating is (wt%): 15% acrylic emulsion, 8% hollow glass microspheres, 8% magnetic-absorbing-bactericidal additives, SiO 2 Base insulation composite fiber 18%, rutile titanium dioxide 5%, sepiolite powder 10%, calcined kaolin 5%, polyethylene glycol 200 dispersant 1%, silicone defoamer 1%, cellulose acetate thickener 2 %, water 27%.
[0063] The preparation method is the same as in Example 1.
Embodiment 3
[0065] The formula of the magnetic bactericidal thermal insulation coating is (wt%): 15% acrylic emulsion, 15% hollow glass microspheres, 18% magnetic-absorbing-bactericidal additives, SiO 2 Base insulation composite fiber 8%, rutile titanium dioxide 5%, sepiolite powder 5%, calcined kaolin 10%, polyethylene glycol 200 dispersant 2%, silicone defoamer 1%, cellulose acetate thickener 3 %, water 18%.
[0066] The preparation method is the same as in Example 1.
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