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PBT/ASA alloy material and preparing method thereof

A technology of alloy materials and compatibilizers, applied in the field of polymer composite engineering materials, can solve the problems of reduced impact resistance, difficulty in satisfying flame retardancy and impact resistance at the same time, insufficient flame retardancy, etc. Lifting, high melt index effect

Active Publication Date: 2017-04-26
GUANGZHOU KEYUAN INNOVATIVE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing PBT / ASA alloy materials have the defect of insufficient flame retardancy
For automotive interior and exterior decorations such as horn covers, grilles, etc., the products need to meet the requirements of flame retardancy and high temperature resistance. Generally, when flame retardants and glass fibers are added to PBT / ASA alloy materials, the impact resistance of the materials will be significantly improved. It is difficult for PBT / ASA alloy materials to meet the requirements of flame retardancy and impact resistance at the same time

Method used

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  • PBT/ASA alloy material and preparing method thereof
  • PBT/ASA alloy material and preparing method thereof
  • PBT/ASA alloy material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047]A PBT / ASA alloy material, its formula is as follows: 65kg PBT 1100-211M, 20kg ASA PW-957, 10kg glass fiber, 15kg flame retardant, 5kg compatibilizer styrene-acrylonitrile-glycidyl methacrylate copolymer material, 1kg compatibilizer bisphenol A epoxy resin, 0.1kg titanate coupling agent, 0.5kg flow aid SAN EMI-200, 0.5kg lubricant EBS, 0.5kg lubricant PETs, 0.1kg antioxidant 1010, the flame retardant is compounded from 10kg of decabromodiphenylethane and 5kg of sodium antimonate.

[0048] The preparation method of described PBT / ASA alloy material comprises the steps:

[0049] S1. Dry PBT at 110°C for 2 hours, and dry ASA resin at 90°C for 2 hours;

[0050] S2. Mix PBT, ASA, and coupling agent in a high-speed mixer evenly, then add other powder materials into it, continue to stir and mix evenly at a high speed, and send it to a twin-screw extruder for melting, mixing, and extrusion. While extruding, it is added from the twin-screw side to the forced feeding system, and t...

Embodiment 2

[0052] A PBT / ASA alloy material, its formula is as follows: 20kg PBT1100-211M, 50kg ASAPW-957, 35kg glass fiber, 25kg flame retardant, 0.5kg compatibilizer styrene-maleic anhydride copolymer, 3kg compatibilizer bis Phenol A type epoxy resin, 1kg titanate coupling agent, 5kg flow aid SAN EMI-200, 0.3kg lubricant EBS, 0.3kg antioxidant 1010, 0.2kg antioxidant 168, described flame retardant consists of It is compounded with 20kg decabromodiphenylethane and 5kg sodium antimonate.

[0053] The preparation process is the same as in Example 1.

Embodiment 3

[0055] A PBT / ASA alloy material, its formula is as follows: 50kg PBT1100-211M, 30kg ASA PW-957, 25kg glass fiber, 18kg flame retardant, 4kg compatibilizer styrene-maleic anhydride copolymer, 2kg compatibilizer bis Phenol A type epoxy resin, 0.2kg titanate coupling agent, 2kg flow aid SANEMI-200, 0.3kg lubricant EBS, 0.3kg antioxidant 1076, 0.2kg antioxidant 168, described flame retardant consists of 14kg brominated polystyrene compounded with 4kg sodium antimonate.

[0056] The preparation process is the same as in Example 1.

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Abstract

The invention discloses a PBT / ASA alloy material and a preparing method thereof. The alloy material is prepared from, by weight, 20-65 parts of PBT resin, 20-50 parts of ASA resin, 10-35 parts of glass fiber, 15-25 parts of fire retardant, 0.5-5.0 parts of first compatilizer, 1.0-3.0 parts of second compatilizer, 0.5-5.0 parts of a flow promoting agent and 0.1-3.0 parts of auxiliary, wherein the fire retardant is compounded by main fire retardant brominated polystyrene and fire retardant synergist sodium antimonite according to a mass ratio of (10-20):(4-5), the first compatilizer is a styrene copolymer, and the second compatilizer is bisphenol A type epoxy resin with an epoxy value of 0.5-1.5. The prepared PBT / ASA alloy material has the functions of both flame retardancy and resistance to shocks at the same time, and the material is not prone to warpage and good in comprehensive mechanical performance.

Description

technical field [0001] The invention relates to the field of polymer composite engineering materials, and more specifically, the invention relates to a PBT / ASA alloy material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is a semi-crystalline polymer with excellent performance. It has the characteristics of high strength, good electrical properties, stable size, good heat resistance, low water absorption and easy molding process. It is widely used Used in automobiles, electronic appliances and machinery manufacturing industries, it has become the fifth largest engineering plastics. However, the notched impact strength of PBT resin is low and the molding shrinkage is large, which limits the development and application of PBT resin in some fields to a certain extent. [0003] In order to overcome the problem of low strength of PBT resin, it is often reinforced and modified with glass fiber, which can significantly improve its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L51/04C08L25/14C08L63/00C08L25/12C08L25/18C08L35/06C08K13/04C08K7/14C08K5/03C08K3/24
CPCC08K2201/004C08L51/04C08L67/02C08L2201/02C08L2205/02C08L2205/035C08L2205/05C08L2205/08C08L25/14C08L63/00C08L25/12C08K13/04C08K7/14C08K5/03C08K3/24C08L35/06C08L25/18
Inventor 熊平张扬欧德培陈玉平针涛
Owner GUANGZHOU KEYUAN INNOVATIVE MATERIALS
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