High-glowing-filament high-CTI (comparative tracking index) super-tough flame-retardant PBT/PC (polybutylene terephthalate/polycarbonate) alloy material and preparation method thereof

A high-glow wire and alloy material technology, applied in the field of modified plastic alloys, can solve the problems of low glow wire temperature and poor toughness, achieve high flame retardancy, overcome poor leakage resistance, and low cost

Active Publication Date: 2014-12-24
上海日之升科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the glow wire temperature of the above materials is low, and the toughness is still not very good, so it is urgent to develop a PBT / PC alloy material with high glow wire, high CTI, super toughness and flame retardancy

Method used

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  • High-glowing-filament high-CTI (comparative tracking index) super-tough flame-retardant PBT/PC (polybutylene terephthalate/polycarbonate) alloy material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0027] Embodiment 1 Preparation of PBT / PC alloy material of the present invention (1)

[0028] a) Prepare raw materials according to the following parts by weight: 59 parts of polybutylene terephthalate PBT, 15 parts of polycarbonate PC, 10 parts of compound toughening agent, 13 parts of brominated flame retardant, phosphorus nitrogen flame retardant 6 parts of additives, 3 parts of inorganic flame retardant synergists, 0.3 parts of transesterification inhibitors, 0.3 parts of anti-dripping agent PTFE, 0.5 parts of lubricants, and 0.5 parts of antioxidants;

[0029] Wherein, the composite toughening agent is composed of: 5 parts of ethylene-methyl acrylate-glycidyl methacrylate terpolymer, 5 parts of ethylene-butyl acrylate-glycidyl methacrylate terpolymer The brominated flame retardant consists of: decabromodiphenylethane; the phosphorus nitrogen flame retardant consists of: 2 parts of trihexyl phosphate, 4 parts of melamine; the inorganic flame retardant synergistic The ag...

Embodiment 2

[0031] Example 2 Preparation of PBT / PC alloy material of the present invention (two)

[0032] a) Prepare raw materials according to the following parts by weight: 15 parts of polybutylene terephthalate PBT, 25 parts of polycarbonate PC, 15 parts of compound toughening agent, 20 parts of brominated flame retardant, phosphorus nitrogen flame retardant 3 parts of agent, 5 parts of inorganic flame retardant synergist, 0.1 part of transesterification inhibitor, 0.5 part of anti-dripping agent PTFE, 0.1 part of lubricant, and 0.1 part of antioxidant.

[0033] Wherein, the composite toughening agent is composed of: 10 parts of ethylene-methyl acrylate-glycidyl methacrylate terpolymer, 5 parts of ethylene-butyl acrylate-glycidyl methacrylate terpolymer The brominated flame retardant consists of: 10 parts of decabromodiphenylethane, 10 parts of brominated epoxy; the phosphorus nitrogen flame retardant consists of: 2 parts of sodium phosphinate, 1 part of melamine ; The inorganic fla...

Embodiment 3

[0035] Example 3 Preparation of PBT / PC alloy material of the present invention (3)

[0036]a) Prepare raw materials according to the following parts by weight: 70 parts of polybutylene terephthalate PBT, 10 parts of polycarbonate PC, 25 parts of compound toughening agent, 5 parts of brominated flame retardant, phosphorus nitrogen flame retardant 10 parts of additives, 2 parts of inorganic flame retardant synergists, 0.5 parts of transesterification inhibitors, 0.1 parts of anti-dripping agent PTFE, 0.3 parts of lubricants, and 0.3 parts of antioxidants.

[0037] Wherein, the composite toughening agent is composed of: 10 parts of ethylene-methyl acrylate-glycidyl methacrylate terpolymer, 15 parts of ethylene-butyl acrylate-glycidyl methacrylate terpolymer The brominated flame retardant consists of: decabromodiphenylethane; the phosphorus nitrogen flame retardant consists of: 4 parts of trihexyl phosphate, 6 parts of melamine; the inorganic flame retardant synergistic The age...

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Abstract

The invention relates to a high-glowing-filament high-CTI (comparative tracking index) super-tough flame-retardant PBT/PC (polybutylene terephthalate/polycarbonate) alloy material and a preparation method thereof. The material is prepared from the following raw materials in parts by weight: 15-70 parts of PBT, 10-25 parts of PC, 10-25 parts of compound toughener, 5-20 parts of bromine flame retardant, 3-10 parts of phosphorus-nitrogen flame retardant, 2-5 parts of inorganic flame-retardant synergistic agent, 0.1-0.5 part of ester exchange inhibitor, 0.1-0.5 part of anti-dripping agent PTFE (polytetrafluoroethylene), 0.1-0.5 part of lubricant and 0.1-0.5 part of antioxidant. The PBT/PC alloy material has excellent comprehensive properties; and the ASTM (American Society for Testing and Materials) notch impact strength is greater than 600 J/m, the flame retardancy reaches UL94V-0, the glowing filament temperature GWIT is greater than 850 DEG C, and the CTI is greater than 600V, thereby greatly widening the application range of the PBT/PC alloy material.

Description

technical field [0001] The invention relates to the technical field of modified plastic alloys, in particular to a super-tough flame-retardant PBT / PC alloy material with high glow wire and high CTI and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is a thermoplastic engineering material with a fast crystallization rate. It is easy to achieve high-speed molding and has excellent solvent resistance. However, its product has a large shrinkage rate and notched impact strength. Insufficient rigidity at low and high temperatures. Polycarbonate (PC) is an engineering plastic with excellent comprehensive properties. It has excellent weather resistance, high impact resistance, and good electrical insulation, but it has high melt viscosity, poor fluidity, difficult processing and durability. The disadvantages such as poor solvent, so its scope of application is greatly limited. Blending PBT with PC can not only overcome the shortcomings...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L69/00C08L23/08C08L51/06C08L33/12C08L63/00C08L25/06C08L27/18C08K13/02C08K5/03C08K5/521C08K5/3492C08K3/34C08K3/22C08K3/38C08K3/32
Inventor 朱明源陈晓东杨涛孟成铭王尹杰
Owner 上海日之升科技有限公司
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