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Permanent inflaming-retarding pbt material

A permanent and raw material technology, applied in the field of materials, can solve the problems of large molding shrinkage rate and low notched impact strength, and achieve the effect of strong mechanical properties, high resistance and simple preparation process

Active Publication Date: 2014-11-12
CHUZHOU YOUSHENG HIGH POLYMER MATERIAL
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  • Summary
  • Abstract
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  • 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 permanent flame-retardant PBT material, which is made up of the following raw materials in parts by weight (kg):

[0022] Polybutylene terephthalate 80, calcium aluminate 1, epichlorohydrin 1, ammonium octamolybdate 3, hydroxystearic acid 2, polyethylene wax 5, ascorbic acid 0.4, N-methylolacrylamide 1 , 2,6-di-tert-butyl-p-cresol 0.7, propylene glycol adipate polyester 2, 2-ethylhexanol 2, sodium metaborate 1, epoxy octyl stearate 1, processing aid 1;

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

[0024] Tricalcium silicate 2, tamarind gum 3, silicone masterbatch 2, dioctyl sebacate 2, 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 sili...

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Abstract

The invention discloses a permanent inflaming-retarding pbt material. The permanent inflaming-retarding pbt material comprises, by weight, 73 parts to 80 parts of polybutylene terephthalate, 1 part to 2 parts of calcium aluminate, 1 part to 2 parts of epoxy chloropropane, 2 parts to 3 parts of ammoniummolybdat, 2 parts to 3 parts of hydroxystearic acid, 3 parts to 5 parts of polyethylene wax, 0.4 part to 1 part of ascorbic acid, 1 part to 2 parts of N-hydroxymethyl acrylamide, 0.7 part to 1 part of 2,6-di-tert-butyl-4-methylphenol, 2 parts to 3 parts of Poly(1,2-propylene glycol adipate), 2 parts to 3 parts of 2-ethyl hexanol, 1 part to 2 parts of sodium metaborate, 1 part to 2 parts of epoxy-2-ethylhexyl stearate and 1 part to 2 parts of processing agents. The permanent inflaming-retarding pbt material has the permanent flame retardance, and is reasonable in raw material compound, good in compatibility, high in finished product mechanical performance, high in resistance, simple in preparation technology and low in cost.

Description

technical field [0001] The invention mainly relates to the field of materials, in particular to a permanent flame-retardant 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 tim...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K13/06C08K3/24C08K3/38C08K5/11C08K5/1515
Inventor 孟勇
Owner CHUZHOU YOUSHENG HIGH POLYMER MATERIAL
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