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A kind of high temperature and high humidity 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 high production efficiency, low production cost, and convenient control

Active Publication Date: 2021-10-15
东莞市东翔塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As an essential energy supply device for electric vehicles, charging piles put forward higher requirements for the use of charging pile cables, such as requiring higher CTI values ​​(above 600V) and higher mechanical stability under the conditions of 85% humidity and 85°C temperature And high flame retardant stability, but the existing polyester composite materials are difficult to meet this requirement

Method used

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  • A kind of high temperature and high humidity resistant halogen-free flame retardant polyester composite material and preparation method thereof
  • A kind of high temperature and high humidity resistant halogen-free flame retardant polyester composite material and preparation method thereof
  • A kind of high temperature and high humidity resistant halogen-free flame retardant polyester composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

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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Abstract

The invention relates to the technical field of polyester materials for charging piles, in particular to a high-temperature and high-humidity resistant halogen-free flame-retardant polyester composite material and a preparation method thereof. The halogen-free flame-retardant polyester composite material includes the following raw materials in parts by weight: 40-60 parts of polyester resin, 2-6 parts of compatibilizer, 0.1-0.2 parts of antioxidant, 0.5-1.0 parts of hydrolysis resistance agent, 10-20 parts of phosphinate flame retardant, 0.5 parts of flame retardant synergist ‑1.0 part, 0.5‑1.5 part of transesterification inhibitor, 0.5‑1 part of chain extender, 10‑30 part of glass fiber and 0.5‑1.0 part of other additives. , with high CTI characteristics, the mechanical properties of the material are relatively stable, the flame retardant performance remains unchanged, and there is no precipitate on the surface of the polyester composite material.

Description

technical field [0001] The invention relates to the technical field of polyester materials for charging piles, in particular to a high-temperature and high-humidity resistant halogen-free flame-retardant polyester composite material and a preparation method thereof. Background technique [0002] Comparative Tracking Index (CTI for short) is the highest voltage value at which the surface of an insulating material can withstand 50 drops of electrolyte (0.1wt% ammonium chloride aqueous solution) without forming leakage traces, and the unit is V. That is to say, CTI is the highest voltage value at which 50 drops of conductive liquid are dripped on the surface of insulating plastic without carbonization short circuit under the condition of electrification. Generally speaking, the higher the CTI value of the insulating plastic, the better its leakage resistance. [0003] With the improvement of people's living standards and the continuous pursuit of convenient transportation, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08K13/06C08K9/06C08K7/14B29B9/06
CPCB29B9/06C08L67/02C08L2201/02C08L2201/08C08L2201/22C08L2205/025C08L2205/035C08K13/06C08K9/06C08K7/14
Inventor 陈林梁文辉
Owner 东莞市东翔塑胶有限公司
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