▎ 摘　　要

NOVELTY - Preparing waterproof heat preservation external wall paint comprises mixing the silica sol active carbon fibre powder, titanium pigment uniformly, then adding fluorine-silicon modified acrylic emulsion and graphene-acrylic composite emulsion, then adding auxiliary agent and mixing uniformly with fluorine silane, where the auxiliary agent comprises dispersant, wetting agent, thickening agent, antifoaming agent, film-forming auxiliary agent and anti-freezing agent, preparing fluorine-silicon modified acrylic emulsion by mixing the methacrylate alkyl acrylate hydroxyalkyl ester crosslinking monomer uniformly to obtain acrylic emulsion, dissolving the initiator emulsifying agent with water to obtain auxiliary agent solution, dropping the auxiliary agent solution into the acrylic emulsion, mixing uniformly and then adding active carbon fibre powder, adding organic silicon monomer and fluorine monomer in the mixture. USE - Method for preparing waterproof heat preservation external wall paint for building . ADVANTAGE - The method is excellent in waterproof and heat preservation performance, self-cleaning and washing resistance suitable for various external environment. DETAILED DESCRIPTION - Preparing waterproof heat preservation external wall paint comprises mixing the silica sol active carbon fibre powder, titanium pigment uniformly, then adding fluorine-silicon modified acrylic emulsion and graphene-acrylic composite emulsion, then adding auxiliary agent and mixing uniformly with fluorine silane, where the auxiliary agent comprises dispersant, wetting agent, thickening agent, antifoaming agent, film-forming auxiliary agent and anti-freezing agent, preparing fluorine-silicon modified acrylic emulsion by mixing the methacrylate alkyl acrylate hydroxyalkyl ester crosslinking monomer uniformly to obtain acrylic emulsion, dissolving the initiator emulsifying agent with water to obtain auxiliary agent solution, dropping the auxiliary agent solution into the acrylic emulsion, mixing uniformly and then adding active carbon fibre powder, adding organic silicon monomer and fluorine monomer in the mixture, mixing uniformly after microwave heating to obtain the fluorine-silicon modified acrylic emulsion, preparing graphene-acrylic composite emulsion, mixing the methacrylate, alkyl acrylate, hydroxyalkyl ester, crosslinking monomer uniformly to obtain acrylic emulsion, dissolving the initiator, emulsifying agent with water to obtain auxiliary agent solution, dropping the auxiliary agent solution into the acrylic emulsion mixing uniformly and then adding active carbon fibre powder, adding graphene in the mixture, mixing uniformly microwave, heating to obtain the graphene-acrylic composite emulsion, where 50 pts. wt. fluorine-silicon modified acrylic acid emulsion, 25 pts. wt. graphene-acrylic acid composite emulsion, 15 pts. wt. silica sol, 15 pts. wt. active carbon fibre powder, 15 pts. wt. fluorosilane, 25 pts. wt. titanium pigment, 5 pts. wt. auxiliary agent water, 15 -35 pts, wt. solid content of the fluorine-silicon modified acrylic emulsion and 50-60 wt.% graphene-acrylic composite emulsion.