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Flame-retardant PBT / PC plastic alloy and manufacturing method thereof

A plastic alloy and composite flame retardant technology, which is applied in the field of flame-retardant PBT/PC plastic alloy and its production, can solve the problem that it has not been widely used, the overall performance cannot meet the use requirements, and the application of flame-retardant PBT/PC alloy has started. To solve problems such as lateness, to achieve the effect of highlighting practicability, outstanding comprehensive performance of materials, and excellent processing fluidity

Inactive Publication Date: 2009-04-15
FOSHAN JINKANGYE PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In China, due to the late development and application of flame-retardant PBT / PC alloys, its overall performance has not yet met the requirements for use, so it has not been widely used.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0042] When making, first carry out according to the following requirements,

[0043] The first step is to prepare the main ingredients,

[0044] 1) Weigh polybutylene terephthalate, the mass fraction is 44.0; the intrinsic viscosity of polybutylene terephthalate is 0.75~1.3dl / g, and its intrinsic viscosity is preferably 0.9~1.1dl / g g;

[0045] 2) Weigh polycarbonate, the mass fraction is 29.0; the melt flow rate of polycarbonate is 5~20g / 10min, and its melt flow rate is preferably 10~15g / 10min;

[0046] Bake the weighed polybutylene terephthalate and polycarbonate raw materials at 120°C for 10 hours;

[0047] The second step is to prepare the auxiliary materials:

[0048] 1) compatibilizer, weigh acrylate and glycidyl methacrylate bifunctional ethylene elastomer, the number of parts by mass is 9.7;

[0049] 2) Composite flame retardant: including main flame retardant and auxiliary flame retardant, the main flame retardant is tetrabromobisphenol A polycarbonate oligomer, the...

no. 2 example

[0059] When making, first carry out according to the following requirements,

[0060] The first step is to prepare the main ingredients,

[0061] 1) take polybutylene terephthalate, and the number of parts by mass is 36.8;

[0062] 2) take polycarbonate, and the number of parts by mass is 36.8;

[0063] Bake the weighed polybutylene terephthalate and polycarbonate raw materials at 120°C for 10 hours;

[0064] The second step is to prepare the auxiliary materials:

[0065] 1) compatibilizer, weigh acrylate and glycidyl methacrylate difunctionalized ethylene elastomer, the number of parts by mass is 9.8;

[0066] 2) Composite flame retardant: including main flame retardant and auxiliary flame retardant, the main flame retardant is tetrabromobisphenol A polycarbonate oligomer, the mass fraction is 12.6; the auxiliary flame retardant is ultrafine trioxide Diantimony, the number of parts by mass is 3.2; the composite flame retardant is obtained after mixing the main flame retar...

no. 3 example

[0077] When making, first carry out according to the following requirements,

[0078] The first step is to prepare the main ingredients,

[0079] 1) take polybutylene terephthalate, and the number of parts by mass is 51.5;

[0080] 2) take polycarbonate, and the number of parts by mass is 21;

[0081] Bake the weighed polybutylene terephthalate and polycarbonate raw materials at 120°C for 10 hours;

[0082] The second step is to prepare the auxiliary materials:

[0083] 1) compatibilizer, weigh acrylate and glycidyl methacrylate bifunctional ethylene elastomer, the number of parts by mass is 9.7;

[0084] 2) Composite flame retardant: including main flame retardant and auxiliary flame retardant, the main flame retardant is tetrabromobisphenol A polycarbonate oligomer, the mass fraction is 13.5; the auxiliary flame retardant is ultrafine trioxide Diantimony, the number of parts by mass is 3.5; the composite flame retardant is obtained after mixing the main flame retardant a...

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Abstract

The invention relates to a flame-retardant PBT / PC plastic alloy and a preparation method thereof. The material components of the flame-retardant PBT / PC plastic alloy comprise main materials and auxiliary materials; wherein, the main materials are polybutylene terephthalate and polycarbonate and the auxiliary materials comprise a compatilizer, a composite flame retardant agent and an antioxidant agent. The plastic alloy is characterized in that the auxiliary materials also comprise a lubricating agent, wherein, the parts by weight of all the components are as follows in sequence: (1) the main material: 30.1 parts to 55 parts of polybutylene terephthalate; 2) 20 parts to 40 parts of polycarbonate; and (2) auxiliary materials: 1) 5 parts to 15 parts of compatilizer; 2) composite flame retardant agent: 8 parts to 16 parts of tetrabromobisphemol A polycarbonate oligomer and 1.5 parts to 6 parts of diantimony trioxide; 3) 0.2 part to 0.4 part of antioxidant agent; and 4) o.2 part to 0.6 part of lubricating agent. The invention has the characteristics of high-effective compatibility, good impact toughness, high-effective flame retardance, high degree of environment protection, excellent processing performance and low cost of materials.

Description

technical field [0001] The invention relates to a flame-retardant PBT / PC plastic alloy and a manufacturing method thereof. Background technique [0002] Polybutylene TerephthalateS, PBT for short, is one of the toughest engineering thermoplastic materials. It is an engineering plastic with a fast crystallization speed and is easy to achieve high-speed molding. It has very outstanding chemical resistance, heat resistance and excellent mechanical strength, electrical insulation properties and thermal stability. However, it also has disadvantages such as large molding shrinkage, low notched impact strength, and insufficient rigidity at high temperatures. [0003] Polycarbonate Polycarbonate, referred to as PC, is an amorphous polymer with outstanding impact resistance, dimensional and thermal stability, high gloss, excellent mechanical strength, electrical insulation and flame retardancy. However, due to its molecular rigidity and steric hindrance, its melting temperature is ...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L69/00C08L83/04C08K13/02B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/92B29C2948/92704B29C2948/92895
Inventor 叶常青郝勇杨俊李翠丽
Owner FOSHAN JINKANGYE PLASTIC
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