Five-layer co-extrusion laminated board for sanitary ware and preparation method thereof
A composite board and sanitary ware technology, applied in the direction of chemical instruments and methods, lamination, layered products, etc., can solve the problems of structural incompatibility, board crack resistance, chemical corrosion resistance and poor hot water circulation resistance, etc., to achieve Not easy to fade, good hot water cycle resistance, stable color effect
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[0032] a. Stir the raw materials with a ratio of 0.1% of benzotriazole ultraviolet absorber (UV) and polymethyl methacrylate (PMMA) as the balance in the mixing hopper, and carry out the process at a temperature of 80°C at the same time. After 3 hours of drying, the resin is melted and plasticized at 200-250°C by one of the extruders, and extruded into the first and fifth flow channels of the distributor;
[0033] b. Stir the raw materials with a ratio of benzotriazole ultraviolet absorber (UV) 0.1%, titanium dioxide color masterbatch 4%, PMMA 40, and ABS in the mixing hopper evenly in a mixing hopper at a temperature of 80° C. Dry for 3 hours within the range, melt and plasticize the resin at 200-240°C by the second rod extruder, and extrude it into the second and fourth flow channels of the distributor;
[0034] c. Mix the raw materials with a ratio of 5% titanium dioxide color masterbatch and ABS as the balance, and stir them evenly in the mixing hopper, and at the same tim...
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