The hottest water-based 2K paint with good weather

2022-08-13
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Water based 2K coating with good weather resistance

water based 2K coating with good weather resistance

water based coating with good weather resistance has no foaming property. It is made by mixing acrylic polymer with hydroxyl functional group and isocyanate dispersed in water. The main chain of the acrylic polymer component with hydroxyl functional groups includes hydrolyzable silicone vinyl polymer products, while the water dispersed isocyanate component includes polyisocyanate based on methyl diisocyanate

for example:

3.6 parts of acrylic acid

20.4 parts of butyl acrylate

24.5 parts of methyl methacrylate

8.7 parts of 3-methacryloyloxypropyl trimethoxysilane

in the presence of Vazo 67 (azo initiator), heat and reflux in the mixed solvent of 1-methoxy-2-propane and N-methyl-2-pyrrolidone for 2h, and cool

50.0 parts of hydroxyethyl methacrylate

37.1 parts of methyl methacrylate

n, n-dimethylaminoethanol

mix to obtain mixture a. In addition, add water, ammonium ferrous sulfate and isoascorbic acid into the reactor, then add mixture a, adjust the temperature to 29, add 35% hydrogen peroxide solution, and stir until exothermic reaction for 1 hour to obtain a polymer

prepared polymer 92.5 parts

drewplus l-405 polysiloxane 0.4 parts

tinuvin 295 pyridine compounds, hindered amines, sebacic acid bis (1,2,2,6,6-pentamethyl-4-pyridyl ester) 0.7 parts Moco bluntly

tinuvin1130, UV absorber, 3- (2h-benzotriazole-2-yl-5-tert-butyl-4-hydroxyphenylpropionate methyl ester) 0.7 phr

dowanol PM propylene glycol monomethyl ether 3.8 phr

zony steel bar hoop bending machine, the other end is close to the shell and fixed, and l FSN surfactant is clamped by hand, containing 0.9 phr of polyethylene glycol and fluoropolymer

1.0 phr of other additives

slowly stir and mix, and slowly mix 14.4 phr of bayhydur xp7065 hexamethylene diisocyanate trimer.The

evenly mixed and filtered to obtain coating materials with good weather resistance

international patent

source: China cigarette pack ink information

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