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High-performance reinforced flame-retardant PBT material and preparation method thereof

A high-performance, PBT resin technology, applied in the field of modified engineering plastics, can solve the problems of poor impact resistance, low tracking index, low glow wire ignition temperature, etc., and achieve high tracking index and impact resistance. superior effect

Inactive Publication Date: 2019-09-13
横店集团得邦工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pure polybutylene terephthalate material has a low glow wire ignition temperature, poor impact resistance, and low tracking index, which cannot meet the current industrial needs.

Method used

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  • High-performance reinforced flame-retardant PBT material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh 50 parts by weight of PBT resin, 10 parts by weight of PET resin, 16 parts by weight of compound flame retardant (10 parts by weight of bromotriazine, 6 parts by weight of melamine cyanurate), flame retardant synergist (antimony trioxide ) 2 parts by weight, 1 part by weight of ethylene elastomer of acrylate and glycidyl ester difunctionalization, 0.6 part by weight of antioxidant, 0.9 part by weight of lubricant, 0.2 part by weight of nucleating agent, as described in the preparation method of the present invention Sequentially added to the high mixer and mixed evenly, added to the twin-screw extruder through the main feeding hopper, and at the same time, 25 parts by weight of glass fiber fillers that were surface-impregnated with silane coupling agents with epoxy groups or amino functional groups were passed through The glass fiber port is added, melted, kneaded, extruded, and granulated by a twin-screw extruder to obtain high-performance reinforced flame-retarda...

Embodiment 2

[0030] Weigh 50 parts by weight of PBT resin, 10 parts by weight of PET resin, 18 parts by weight of compound flame retardant (wherein 9 parts by weight of bromotriazine, 6 parts by weight of melamine cyanurate, magnesium hydroxide treated by silane chain coupling agent on the surface 2 parts by weight), flame retardant synergist (antimony trioxide) 2 parts by weight, acrylate and glycidyl ester bifunctional vinyl elastomer 1 part by weight, antioxidant 0.6 parts by weight, lubricant 0.9 parts by weight , 0.2 parts by weight of nucleating agent, according to the order described in the preparation method of the present invention, join in the high mixer and mix evenly, join in the twin-screw extruder through the main feeding hopper, and simultaneously use 25 parts by weight of epoxy group or amino The glass fiber filler with functional group silane coupling agent for surface infiltration treatment is added through the glass fiber port, melted, kneaded, extruded, and granulated by...

Embodiment 3

[0032] Weigh 50 parts by weight of PBT resin, 10 parts by weight of PET resin, 18 parts by weight of compound flame retardant (wherein 9 parts by weight of bromotriazine, 6 parts by weight of melamine cyanurate, the surface is processed by silane chain coupling agent Magnesium hydroxide 2 parts by weight), 3 parts by weight of flame retardant synergist (1 part by weight of antimony trioxide, 2 parts by weight of zirconium phosphate), 1 part by weight of acrylate and glycidyl ester bifunctional vinyl elastomer, antioxidant 0.6 parts by weight, 0.9 parts by weight of lubricant, 0.2 parts by weight of nucleating agent, according to the order described in the preparation method of the present invention, join in the high mixer and mix evenly, join in the twin-screw extruder through the main feeding hopper, and simultaneously 25 Parts by weight The glass fiber filler that uses the silane coupling agent of the epoxy group or the amino functional group to carry out the surface impregna...

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Abstract

The invention relates to the field of modified engineering plastics, and discloses a high-performance reinforced flame-retardant PBT material and a preparation method thereof. The high-performance reinforced flame-retardant PBT material of the invention comprises (by weight): 50 to 65 parts of PBT resin, 5 to 15 parts of PET resin, 10 to 20 parts of a flame retardant, 1 to 5 parts of a flame retardant synergist, 20 to 30 parts of a filler, 1 to 2 parts of a toughening agent, 0.1 to 0.8 part of an antioxidant, 0.9 to 1.2 parts of a lubricant, 0.1 to 0.3 part of a nucleating agent, and 0.5 to 1.5 parts of a plasticizer. The high-performance reinforced flame-retardant PBT material achieves a high glow-wire initiation temperature and a high tracking index through the combination of the flame retardant and the synergist, and combustion performance and mechanical property of the PBT material are improved by using low-cost talcum powder as the nucleating agent.

Description

technical field [0001] The invention relates to the field of modified engineering plastics, in particular to a high-performance reinforced flame-retardant PBT material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is a thermoplastic engineering plastic with excellent comprehensive properties, which has high mechanical strength, outstanding chemical resistance, heat resistance and good electrical insulation properties. At the same time, the crystallization speed is fast, the fluidity is good, the molding cycle is short, and the injection molding processing performance is good, and it is widely used in the fields of automobiles, electronic appliances, and machinery manufacturing. However, the simple polybutylene terephthalate material glow wire has a low ignition temperature, poor impact resistance, and low tracking index, which cannot meet the current industrial needs. Contents of the invention [0003] The purpose of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K13/06C08K9/06C08K7/14C08K5/3492C08K3/22C08K3/32
CPCC08K2003/2224C08K2003/328C08L67/02C08L2201/02C08L2205/025C08L2205/03C08K13/06C08K9/06C08K7/14C08K5/34924C08K5/3492C08K3/2279C08K3/22C08K3/32
Inventor 卢勇卜和安李登科易发有陈晓锋
Owner 横店集团得邦工程塑料有限公司
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