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High-temperature-resistant pbt material

A technology of high temperature resistance and raw materials, applied in the field of materials, can solve the problems of large molding shrinkage and low notched impact strength, and achieve the effects of good thermal stability, enhanced high temperature resistance, and improved safety performance.

Active Publication Date: 2014-11-12
CHUZHOU YOUSHENG HIGH POLYMER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the notched impact strength is low and the molding shrinkage is large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of high temperature resistant PBT material, it is made up of the raw material of following parts by weight (kg):

[0022] Polybutylene terephthalate 90, sodium citrate 1, zirconium tetrafluoride 0.1-0.3, butyl methacrylate 2, zinc ricinoleate 0.7, polyether ether ketone 3, ammonium metavanadate 2, Trimethylhexamethylenediamine 1, diisodecyl phthalate 2, casein 1, aluminum dihydrogen phosphate 0.8, polysorbate 80 0.4, processing aid 3;

[0023] Described processing aid is made up of the raw material of following weight part:

[0024] Tricalcium silicate 1, tamarind gum 2, silicone masterbatch 1, dioctyl sebacate 3, oyster shell powder 3, ammonium tungstate 0.3, 8-hydroxyquinoline 0.4, polydimethylsiloxane 2 ;

[0025] Mix oyster shell powder and silicone masterbatch, stir evenly, add dioctyl sebacate, heat and mix at 60°C for 4 minutes, add polydimethylsiloxane, stir and disperse at 300 rpm for 10 minutes to obtain premix;

[0026] Tricalcium silicate and ammo...

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Abstract

The invention discloses a high-temperature-resistant pbt material. The high-temperature-resistant pbt material is composed of, by weight, 83-90 parts of polybutylene terephthalate, 1-2 parts of sodium citrate, 0.1-0.3 part of zirconium tetrafluoride, 1-2 parts of butyl methacrylate, 0.7-1 part of zinc diricinoleate, 2-3 parts of poly(ether-ether-ketone), 1-2 parts of ammonium vanadate, 1-2 parts of trimethyl hexamethylene diamine, 2-4 parts of didecyl phthalate, 1-2 parts of casein, 0.8-1 part of aluminum dihydrogen phosphate, 0.4-1 part of polysorbate 80 and 2-3 parts of processing agents. The raw materials added in the pbt material play a role in increasing high temperature resistance and enable a finished product to be good in heat stability, fire resistance and electric insulation performance, and the high-temperature-resistant pbt material is particularly suitable for an outer shell of an electric appliance and an outer shell of a contactor, and can obviously improve safety of the outer shells.

Description

technical field [0001] The invention mainly relates to the field of materials, in particular to a high temperature resistant PBT material. Background technique [0002] Polybutylene terephthalate has low weather resistance and water absorption rate of only 0.1%. It still maintains various physical properties (including electrical properties) and electrical insulation in a humid environment, but its volume resistance and dielectric loss are large. Resistant to hot water, alkalis, acids, oils, but easily corroded by halogenated hydrocarbons, poor hydrolysis resistance, rapid crystallization at low temperature, good formability. The disadvantage is that the notched impact strength is low and the molding shrinkage is large. Therefore, most of them are reinforced by glass fiber or modified by inorganic filling, the tensile strength and bending strength can be more than doubled, and the heat distortion temperature is also greatly increased. It can work at 140°C for a long ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K13/06C08K3/32C08K5/12C08K5/17C08K5/098C08K3/16
Inventor 孟勇
Owner CHUZHOU YOUSHENG HIGH POLYMER MATERIAL