Low-density, high-flame retardation and high-weatherability bulk molding compound and application thereof
A slug molding compound, high flame retardant technology, used in high flame retardant, high weather resistance slug molding compound, low density field, can solve the problem of immature composition control synthesis technology, unable to put into mass production, not suitable for molding process, etc. problem, to achieve the effect of high strength, high weather resistance and low density
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[0017] Example 1:
[0018] A low-density, high flame-retardant, high weather-resistant bulk molding compound, prepared from the following parts by weight of raw materials, specifically: 65 parts of isophthalic resin, 35 parts of low shrinkage agent PVAc / St copolymer, curing agent TBPB 1.0 part, curing agent TBPO 0.5 part, liquid release agent W9020 5 parts, hollow ceramic beads 40 parts, antioxidant 6263 parts, antioxidant UV absorber UV-531 3 parts, color paste 5 parts, inorganic flame retardant Mineral filler 250 parts of aluminum hydroxide, 100 parts of 12mm glass fiber.
Example Embodiment
[0019] Example 2:
[0020] A low-density, high flame-retardant, high weather-resistant bulk molding compound, prepared from the following parts by weight of raw materials, specifically: 52 parts of isophthalic resin, 48 parts of low shrinkage PVAc / St copolymer, curing agent TBPB 1.0 part, curing agent TBPO 0.5 part, liquid release agent W9020 5 parts, hollow ceramic beads 30 parts, antioxidant 6263 parts, antioxidant UV absorber UV-531 3 parts, color paste 5 parts, inorganic flame retardant Mineral filler 250 parts of aluminum hydroxide, 100 parts of 12mm glass fiber.
Example Embodiment
[0021] Example 3:
[0022] A low-density, high flame-retardant, high weather-resistant bulk molding compound, prepared from the following parts by weight of raw materials, specifically: 70 parts of isophthalic resin, 30 parts of low shrinkage agent PVAc / St copolymer, curing agent TBPB 1.0 part, curing agent TBPO 0.5 part, liquid mold release agent W9020 5 parts, hollow ceramic beads 55 parts, antioxidant 6263 parts, antioxidant UV absorber UV-531 3 parts, color paste 5 parts, inorganic flame retardant Mineral filler 250 parts of aluminum hydroxide, 100 parts of 12mm glass fiber.
[0023] The formula of Example 1 above was prepared into a mass molding compound by the following method, and the specific steps are as follows:
[0024] (1) Surface treatment of hollow ceramic beads: mix the silane coupling agent h-151 into an aqueous solution at a weight ratio of 1:1, stir it evenly and drop it into the dried hollow ceramic beads, and stir for 40- Allow the treating agent to fully coat t...
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