The invention discloses a
metal antirust paint treating modified diatomite as a filler, and its preparation method. The
metal antirust paint comprises the following raw materials, by weight, 28-32 parts of a water-soluble phenolic resin, 22-25 parts of water-soluble
polyester, 14-16 parts of the modified diatomite, 4-6 parts of a pure acrylic
emulsion, 1.2-1.5 parts of octylamine, 14-16 parts of
polycaprolactone, 0.4-0.6 parts of
glycerol monostearate, 0.7-0.9 parts of
polybutylene terephthalate, 0.6-0.8 parts of poly-4-methyl-1-
pentene, 0.5-0.7 parts of
zinc dialkyl dithiophosphate, 1-2 parts of 2,6-di-t-butyl-p-
cresol, 3.5-5.5 parts of a modified acrylic
emulsion, 0.8-1.5 parts of
chitosan, 0.9-1.1 parts of
vinylsilane, and 1.2-1.5 parts of
polyoxyethylene ether type
acrylate. The film of the
metal antirust paint has the advantages of good adhesion, fast
drying, good
heat resistance,
environmental protection and no
pollution, and the modified diatomite and the modified acrylic
emulsion added to the raw materials improve the excellent performances of high-
polymer materials in the raw materials and simultaneously increase the
corrosion resistance and the
heat resistance of the metal antirust paint; and the preparation method has the advantages of simplicity, low cost and suitableness for large-scale production.