High-temperature-resistant high-moisture-resistant halogen-free flame-retardant polyester composite material, and preparation method thereof
A technology of flame-retardant polyester and composite materials, applied in the field of polyester materials for charging piles, to achieve the effects of improving stability, high temperature resistance and high humidity resistance, and improving processing stability and mechanical properties
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Embodiment 1
[0035] A high-temperature and high-humidity-resistant halogen-free flame-retardant polyester composite material, comprising the following raw materials in parts by weight:
[0036]
[0037]
[0038] The polyester resin is formed by mixing polybutylene terephthalate and polyethylene terephthalate at a weight ratio of 2:1. The intrinsic viscosity of polybutylene terephthalate is 0.9 dL / g, and the intrinsic viscosity of polyethylene terephthalate is 1.1 dL / g.
[0039] The compatibilizer is a mixture of glycidyl methacrylate grafted polyolefin elastomer and styrene-acrylonitrile-glycidyl methacrylate copolymer in a weight ratio of 3:1.5, and the relative The molecular weight is 8.5×10 4 . The chain extender is an acrylic-styrene copolymer containing epoxy groups; the acrylic-styrene copolymer containing epoxy groups is acrylic acid-styrene-glycidyl methacrylate copolymer.
[0040] The antioxidant is formed by mixing a hindered phenolic primary antioxidant and a sulfide se...
Embodiment 2
[0052] A high-temperature and high-humidity-resistant halogen-free flame-retardant polyester composite material, comprising the following raw materials in parts by weight:
[0053]
[0054]
[0055] The polyester resin is formed by mixing polybutylene terephthalate and polyethylene terephthalate at a weight ratio of 3:1. The intrinsic viscosity of polybutylene terephthalate is 0.7 dL / g, and the intrinsic viscosity of polyethylene terephthalate is 1.2 dL / g.
[0056] The compatibilizer is formed by mixing glycidyl methacrylate grafted polyolefin elastomer and styrene-acrylonitrile-glycidyl methacrylate copolymer in a weight ratio of 3:1. Molecular weight at 5×10 4 . The chain extender is an acrylic-styrene copolymer containing epoxy groups; the acrylic-styrene copolymer containing epoxy groups is a methacrylic acid-styrene-glycidyl methacrylate copolymer.
[0057] The antioxidant is formed by mixing a hindered phenolic primary antioxidant and a sulfide secondary antioxi...
Embodiment 3
[0069] A high-temperature and high-humidity-resistant halogen-free flame-retardant polyester composite material, comprising the following raw materials in parts by weight:
[0070]
[0071] The polyester resin is formed by mixing polybutylene terephthalate and polyethylene terephthalate at a weight ratio of 1:1. The intrinsic viscosity of polybutylene terephthalate is 1.2 dL / g, and the intrinsic viscosity of polyethylene terephthalate is 0.7 dL / g.
[0072] The compatibilizer is formed by mixing glycidyl methacrylate grafted polyolefin elastomer and styrene-acrylonitrile-glycidyl methacrylate copolymer in a weight ratio of 3:2, and the relative Molecular weight at 1×10 5 . The chain extender is an acrylic-styrene copolymer containing epoxy groups; the acrylic-styrene copolymer containing epoxy groups is acrylic acid-styrene-glycidyl methacrylate copolymer and methyl Acrylic acid-styrene-glycidyl methacrylate copolymer is mixed at a weight ratio of 1:1.
[0073] The antio...
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