Weather-resistant environment-friendly coating and preparation method thereof
An environmentally friendly coating and weather resistance technology, applied in coatings and other directions, can solve the problems of weakened coating coating weather resistance, reduced service life, and impact on service life, and achieve good environmental performance, good adhesion, and good tensile strength. Effect
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Embodiment 1
[0025] A weather-resistant environmental protection paint, comprising the following raw materials in parts by weight: 42 parts of diphenol-based propane epoxy resin, 55 parts of acrylic acid, 15 parts of polyethylene glycol 800, 8 parts of diphenylmethane diisocyanate, 4 parts of diethanolamine, two 3 parts of butyl naphthalene sulfonate, 1 part of diethylene glycol, 0.8 part of sodium 1,2-dihydroxy-3-propanesulfonate, 0.5 part of N,N-dihydroxy (diisopropyl) aniline, titanium dioxide 6 parts, 8 parts of zinc oxide, 30 parts of distilled water
[0026] A preparation method of weather-resistant environmental protection paint, specifically comprising the following steps:
[0027] (1) Add diphenol-based propane epoxy resin and diethanolamine into the reactor, heat at 80°C, and react for 6 hours to obtain epoxy resin-based polyol A;
[0028] (2) Add diphenylmethane diisocyanate and polyethylene glycol 800 into the reactor and heat to 82°C, react for 1.5h until the NCO content rema...
Embodiment 2
[0032] A weather-resistant environmental protection paint, comprising the following raw materials in parts by weight: 35 parts of diphenolic propane epoxy resin, 60 parts of methacrylic acid, 12 parts of polyethylene adipate 1200, 5 parts of diphenylmethane diisocyanate, 5 parts of ethylenediamine, 3 parts of diisopropyl naphthalene sulfonate, 1.2 parts of diethylene glycol, 0.5 parts of 1,2-dihydroxy-3-propanesulfonate sodium, N,N-dihydroxy (diisopropyl Base) 0.6 parts of aniline, 5 parts of titanium dioxide, 10 parts of zinc oxide, 25 parts of distilled water
[0033] A preparation method of weather-resistant environmental protection paint, specifically comprising the following steps:
[0034] (1) Add diphenol-based propane epoxy resin and ethylenediamine into the reactor, heat at 65°C, and react for 6 hours to obtain epoxy resin-based polyol A;
[0035] (2) Add diphenylmethane diisocyanate and polyethylene adipate 1200 into the reactor and heat to 80°C, react for 1h until ...
Embodiment 3
[0039] A weather-resistant environmental protection paint, comprising the following raw materials in parts by weight: 40 parts of diphenolic propane epoxy resin, 58 parts of alkyl acrylate, 12 parts of polytetrahydrofuran diol 2000, 10 parts of diphenylmethane diisocyanate, diethylamine 5 parts, 3 parts of isopropyl naphthalene sulfonate, 0.5 parts of diethylene glycol, 0.5 parts of sodium 1,2-dihydroxy-3-propanesulfonate, 0.5 parts of N, N-dihydroxy (diisopropyl) aniline 10 parts of titanium dioxide, 10 parts of zinc oxide, 40 parts of distilled water
[0040] A preparation method of weather-resistant environmental protection paint, specifically comprising the following steps:
[0041] (1) Add diphenol-based propane epoxy resin and diethylamine into the reactor, heat at 75°C, and react for 5 hours to obtain epoxy resin-based polyol A;
[0042] (2) Add diphenylmethane diisocyanate and polytetrahydrofuran diol 2000 into the reactor and heat to 80°C, react for 1.5h until the NC...
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