Environment-friendly sand-streak polyester weather-resistant powder paint
A powder coating, polyester technology, applied in powder coatings, polyester coatings, coatings, etc., can solve the problems of poor bending resistance, impact resistance and adhesion, etc., and achieve high bending resistance.
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[0025] The preparation method of the environment-friendly sand pattern polyester weather-resistant powder coating comprises the following steps:
[0026] S1: Put matrix resin, pigments and fillers, curing agent, degassing agent, dispersant, sanding agent, toughening agent, brightening agent, wetting agent, preservative, antioxidant, light stabilizer into the mixing tank Mix for 4-6min to obtain a homogeneous mixture;
[0027] S2: Melt and extrude the homogeneous mixture prepared in step S1 through an extruder at 108-115° C., and pass through a tablet crushing machine to tablet, and obtain a tablet after cooling;
[0028] S3: cutting the flakes prepared in step S2 with a cutter to obtain pellets;
[0029] S4: crush the pellets prepared in step S3 and pass through a 60-300 mesh sieve to obtain an environmentally friendly sand texture polyester weather-resistant powder coating.
Embodiment 1
[0031] An environment-friendly polyester weather-resistant powder coating with sand texture, including the following raw materials in units of weight: 120 parts of matrix resin, 60 parts of pigment and filler, 30 parts of curing agent, 6 parts of degassing agent, 2 parts of dispersing agent, sand texture agent 0.6 part, 0.4 part of toughening agent, 0.4 part of brightening agent, 0.3 part of wetting agent, 0.2 part of preservative, 0.2 part of antioxidant, 0.2 part of light stabilizer; the matrix resin is polyester resin; the pigment and filler It is a metal pigment and an extender pigment; the metal pigment is silver powder; the extender pigment is white carbon black; the curing agent is an amino resin; the degassing agent is benzoin; the dispersant is a dispersant POLYRON; The graining agent is polytetrafluoroethylene; the toughening agent is styrene-butadiene thermoplastic elastomer; the brightening agent is brightening agent gz-56; the wetting agent is wetting agent BYK; T...
Embodiment 2
[0038] An environment-friendly sand grain polyester weather-resistant powder coating, which includes the following raw materials in units of weight: 200 parts of matrix resin, 120 parts of pigments and fillers, 60 parts of curing agent, 10 parts of degassing agent, 4 parts of dispersant, sanding agent 1.2 parts, 0.6 parts of toughening agent, 0.5 parts of brightening agent, 0.5 parts of wetting agent, 0.5 parts of preservative, 0.4 parts of antioxidant, 0.4 parts of light stabilizer; the matrix resin is polyester resin; the pigment and filler It is a metal pigment and an extender pigment; the metal pigment is silver powder; the extender pigment is white carbon black; the curing agent is an amino resin; the degassing agent is benzoin; the dispersant is a dispersant POLYRON; The graining agent is polytetrafluoroethylene; the toughening agent is styrene-butadiene thermoplastic elastomer; the brightening agent is brightening agent gz-56; the wetting agent is wetting agent BYK; The...
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