A kind of coating for epoxy modified alkyd resin copper
A technology of alkyd resin and epoxy modification, which is applied in the field of coatings and can solve problems such as resistance to salt spray, slow drying, and low temperature resistance
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Embodiment 1
[0013] An epoxy-modified alkyd resin coating for copper, the composition of which is expressed in parts by mass: 100 parts of epoxy-modified alkyd resin; 20 parts of iron oxide red; 40 parts of hydroxyl acrylic resin; 1 part of organic bentonite 2 parts of naphthyl-p-phenylenediamine; 5 parts of xylene; 1 part of polyisocyanate; 5 parts of titanium dioxide; 10 parts of carbon black; 2 parts of dichromium trioxide; 20 parts of tetraethylthiuram disulfide; 30 parts of ethanol; 10 parts of sodium petroleum sulfonate.
[0014] The product is resistant to low temperature of -40°C, salt spray resistance is more than 700h; surface dry for 0.5h, hard dry for 10h.
Embodiment 2
[0016] An epoxy-modified alkyd resin coating for copper, the composition of which is expressed in parts by mass: 100 parts of epoxy-modified alkyd resin; 25 parts of iron oxide red; 40-50 parts of hydroxyl acrylic resin; organic bentonite 1-5 parts; 2-8 parts of naphthyl-p-phenylenediamine; 5-8 parts of xylene; 1-6 parts of polyisocyanate; 5-8 parts of titanium dioxide; 10-20 parts of carbon black; chromium trioxide 2-10 parts; 20-25 parts of tetraethylthiuram disulfide; 30-40 parts of ethanol; 10-15 parts of sodium petroleum sulfonate.
[0017] The product is resistant to low temperature of -40°C, and resistant to salt spray for more than 720 hours; surface dry for 0.4 hours, hard dry for 9 hours.
Embodiment 3
[0019] An epoxy-modified alkyd resin coating for copper, characterized in that: its composition expressed in parts by mass is: 100 parts of epoxy-modified alkyd resin; 22.5 parts of iron oxide red; 45 parts of hydroxyacrylic resin; 3 parts of organic bentonite; 5 parts of naphthyl p-phenylenediamine; 7 parts of xylene; 3 parts of polyisocyanate; 6 parts of titanium dioxide; 15 parts of carbon black; 6 parts of chromium trioxide; 22.5 parts of sodium; 35 parts of ethanol; 12 parts of sodium petroleum sulfonate.
[0020] The product is resistant to low temperature of -40℃, and salt spray resistance is more than 750h; surface dry for 0.3h, hard dry for 8h.
[0021] All components in the above examples are commercially available.
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