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Flame-proof reinforced Valox compound and preparation thereof

The technology of polybutylene terephthalate and compound is applied in the field of environment-friendly flame retardant reinforced polybutylene terephthalate compound and preparation thereof, and achieves good thermal-oxidative aging stability and is not easy to change color. , The effect of not easy to yellow

Inactive Publication Date: 2008-10-01
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of flame-retardant reinforced polybutylene terephthalate compound and preparation method thereof, to overcome the above shortcomings of domestic existing materials

Method used

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  • Flame-proof reinforced Valox compound and preparation thereof
  • Flame-proof reinforced Valox compound and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Preparation of composite masterbatch:

[0033] First, 100.2 kg of auxiliary mineral powder flame retardants, namely wollastonite, zinc oxide, and silicon carbide whiskers, are mixed with 0.6 kg of surface treatment agents in a high mixer at 105°C in a ratio of (parts by weight) 200:300:1. Mix and activate for 20 minutes, the surface treatment agent is 0.3 kg of silane coupling agent, 0.1 kg of high molecular weight silicone oil and 0.2 kg of epoxy resin mixture;

[0034]Mix 100 kg of low-viscosity PBT resin with a viscosity of 0.72, 25 kg of ionic elastomer and 2 kg of compound additives, and then send them into the twin-screw extruder together with 7 kg of surface-treated auxiliary mineral powder flame retardant. Compounding and mixing to obtain composite masterbatch;

[0035] Ionic elastomers are ethylene / methacrylic acid copolymers in which acrylic acid groups are partially neutralized by Zinc ions. The copolymer contains a third acrylate comonomer. What is the ...

Embodiment 2

[0044] (1) Preparation of composite masterbatch:

[0045] First, 100.2 kg of auxiliary mineral powder flame retardant, namely zeolite, zinc borate, and magnesium oxide whiskers, are mixed and activated with 1.5 kg of surface treatment agent in a high mixer at 105°C in a ratio of (parts by weight) 200:300:1 Treat for 20 minutes, the surface treatment agent is 0.6 kg of silane coupling agent, 0.3 kg of high molecular weight silicone oil and 0.6 kg of epoxy resin mixture;

[0046] Mix 100 kg of low-viscosity PBT resin with a viscosity of 0.72, 15 kg of ionic elastomer and 6 kg of compound additives, and then send them into the twin-screw extruder together with 15 kg of surface-treated auxiliary mineral powder flame retardant. Compounding and mixing to obtain composite masterbatch;

[0047] Ionic elastomers are ethylene / methacrylic acid copolymers in which acrylic acid groups are partially neutralized by Zinc ions. The copolymer contains a third acrylate comonomer. What is the de...

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Abstract

The invention discloses a flame retardant intensified polybutylene terephthalate composite and a preparation method thereof; weight portions of the compositions for preparing the flame retardant intensified polybutylene terephthalate composite are: 100 portions of medium viscosity PBT resin, 15 to 30 portions of brominated flame retardants, 10 to 30 portions of composite mother particles, and 15 to 150 portions of fiber glass. The product of the invention has good stability of heat resistance and oxygen aging in the treatment process and good stability of heat resistance and oxygen aging in long-term use at high temperature, so light color and bright color products are difficult to change color during the processing period, and difficult to turn yellow or black under long-term use at high temperature, which can satisfy the application in long-term use at high temperature for electronic and electrical components and appearance parts and large power energy-saving light.

Description

technical field [0001] The invention relates to a flame-retardant reinforced polybutylene terephthalate compound and a preparation method thereof, in particular to an environmentally friendly flame-retardant reinforced polybutylene terephthalate compound with anti-yellowing and rapid prototyping and its Preparation. Background technique [0002] Polybutylene terephthalate, referred to as PBT, is an engineering plastic with excellent comprehensive properties, especially excellent electrical properties; but because PBT is a crystalline material, its thermal deformation temperature is low, and its notch impact sensitivity is strong. Poor dimensional stability, easy to burn, long molding cycle, difficult to process, thus limiting its scope of use. For this reason, extensive modification research has been carried out on PBT at home and abroad, mainly the research on toughening, strengthening, flame retardancy, blending modification and chemical chain extension. The most widely ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/03C08K7/14B29C47/92C08L33/08C08K5/00C08K3/00B29C48/40B29C48/92
CPCB29C47/92B29C48/92B29C2948/92704B29C48/04B29C48/40B29C48/625B29C2948/9259B29C2948/92885
Inventor 吉继亮李翰卿陈大华苏妤陈伟朱文
Owner SHANGHAI KINGFA SCI & TECH
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