A kind of ultra-high gloss black plastic powder coating and preparation method thereof
A powder coating and gloss technology, applied in powder coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problems of low gloss, failure to meet the market demand for gloss, insufficient wear resistance, etc., and achieve high surface gloss , the product is beautiful and practical, and the preparation process is simple
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Embodiment 1
[0025] In terms of parts by weight, first mix 5 parts of graphene with 4 parts of dispersant, then heat to 35-45 ° C and stir to obtain a graphene slurry, then mix the graphene slurry with 12 parts of diisocyanate, 4 parts of diisocyanate, and 4 parts of diisocyanate. Azodicyanovaleric acid, 12 parts of filler, 2 parts of leveling agent are mixed uniformly to make a premix; the resulting premix is dispersed with 25 parts of trimethylolpropane triacrylate and 25 parts of water-based alkyd resin polyol body and 4 parts of carbon black are co-extruded through an extruder, cooled, pulverized and sieved to obtain the ultra-high gloss black plastic powder coating.
[0026] Wherein, the filler is composed of activated calcium carbonate and fumed silica powder in a mass ratio of 1:2.5; the dispersant is a mixture of isopropanol and azanitrodimethylformamide, and isopropanol and azanitrodimethylformamide The mass ratio of base formamide is 1:0.8; the leveling agent is polydimethylsil...
Embodiment 2
[0028] In terms of parts by weight, first mix 3 parts of graphene with 3 parts of dispersant and heat to 35-45 ° C to stir and mix evenly to obtain graphene slurry, then mix graphene slurry with 8 parts of diisocyanate and 2 parts of diisocyanate Azodicyanovaleric acid, 8 parts of filler, and 1 part of leveling agent are mixed uniformly to make a premix; the resulting premix is dispersed with 20 parts of trimethylolpropane triacrylate and 20 parts of water-based alkyd resin polyol body and 2 parts of carbon black are co-extruded through an extruder, cooled, pulverized and sieved to obtain the ultra-high gloss black plastic powder coating.
[0029] Wherein, the filler is composed of active calcium carbonate and fumed silica powder in a mass ratio of 1:2; the dispersant is a mixture of isopropanol and azanitrodimethylformamide, and isopropanol and azanitrodimethylformamide The mass ratio of base formamide is 1:0.5; the leveling agent is polyether polyester modified organosilox...
Embodiment 3
[0031] In terms of parts by weight, first mix 6 parts of graphene with 5 parts of dispersant, then heat to 35-45°C and stir and mix evenly to obtain graphene slurry, then mix graphene slurry with 16 parts of diisocyanate, 5 parts of diisocyanate, and 5 parts of diisocyanate Azodicyanovaleric acid, 15 parts of filler, and 3 parts of leveling agent are mixed uniformly to make a premix; the resulting premix is dispersed with 30 parts of trimethylolpropane triacrylate and 30 parts of water-based alkyd resin polyol body and 5 parts of carbon black are co-extruded through an extruder, cooled, pulverized and sieved to obtain the ultra-high gloss black plastic powder coating.
[0032] Wherein, the filler is composed of activated calcium carbonate and fumed silica powder in a mass ratio of 1:3; the dispersant is a mixture of isopropanol and azanitrodimethylformamide, and isopropanol and azanitrodimethylformamide The mass ratio of base formamide is 1:1; the leveling agent is polyether...
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