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High-strength heatproof PBT-PP alloy having advantages of high efficiency and environmental protection and preparation method thereof

A high-strength, heat-resistant technology, applied in the field of new energy and environmental protection and energy saving, can solve the problems of low electrical performance and water absorption, aging resistance, dimensional stability and processing performance, poor dimensional stability, and poor aging resistance. Achieve the effects of mass production, low cost, dimensional stability and remarkable processing performance

Inactive Publication Date: 2017-01-18
GUILIN HAOXIN TECH SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, PP also has some disadvantages, such as high low temperature brittleness, poor aging resistance and poor dimensional stability.
[0003] There is no material in the existing market that can satisfy high heat resistance, high mechanical properties, chemical resistance, weather resistance, excellent electrical properties and low water absorption and high aging resistance, Dimensional stability and processability

Method used

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  • High-strength heatproof PBT-PP alloy having advantages of high efficiency and environmental protection and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An efficient and environmentally friendly high-strength heat-resistant PBT-PP alloy, comprising the following parts by weight: the PBT is 75 parts by weight, the PP is 45 parts by weight, the glass fiber is 30 parts by weight, and the compatibilizer is 10 parts by weight, the dibutyl phthalate is 20 parts by weight, the benzylidene acetone is 15 parts by weight, the lubricant is 1.5 parts by weight, and the disulfide is 8 parts by weight.

Embodiment 2

[0020] An efficient and environmentally friendly high-strength heat-resistant PBT-PP alloy, comprising the following parts by weight: the PBT is 80 parts by weight, the PP is 50 parts by weight, the glass fiber is 35 parts by weight, and the compatibilizer is 13 parts by weight, the dibutyl phthalate is 23 parts by weight, the benzylidene acetone is 18 parts by weight, the lubricant is 1.8 parts by weight, and the disulfide is 10 parts by weight.

Embodiment 3

[0022] An efficient and environmentally friendly high-strength heat-resistant PBT-PP alloy, comprising the following parts by weight: the PBT is 90 parts by weight, the PP is 60 parts by weight, the glass fiber is 45 parts by weight, and the compatibilizer is 15 parts by weight, the dibutyl phthalate is 25 parts by weight, the benzylidene acetone is 20 parts by weight, the lubricant is 2 parts by weight, and the disulfide is 15 parts by weight. Wherein, the intrinsic viscosity of the PBT is 0.8-1.3dl / g, and the compatibilizer is EVA and / or EVA-g-MAH, the PBT and the compatibilizer of the above content can better increase the overall high strength The mechanical properties of the heat-resistant PBT-PP alloy, the glossiness of the surface of the high-strength heat-resistant PBT-PP alloy can be improved by adding benzylidene acetone.

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Abstract

The invention relates to a high-strength heatproof PBT-PP alloy having advantages of high efficiency and environmental protection and a preparation method thereof. The high-strength heatproof PBT-PP alloy comprises the following components in parts by weight: 75-90 parts of PBT, 45-60 parts of PP, 30-45 parts of glass fiber, 10-15 parts of a compatilizer, 20-25 parts of dibutyl phthalate, 15-20 parts of benzalacetone, 1.5-2 parts of a lubricant, and 8-15 parts of disulfide. The technical scheme can satisfy high hear resistance, high mechanical propertiesm, chemical reagent-resistance, weatherability, excellent electrical property, low water absorption, high aging resistance, size stability, obvious processing property, good warping degree and surface fineness through reasonable proportion and combination of the components, the alloy has high surface gloss and warping degree, and the preparation technology has the advantages of simple process and low cost.

Description

technical field [0001] The invention belongs to the technical field of new energy and environmental protection and energy saving, and in particular relates to a highly efficient and environmentally friendly high-strength heat-resistant PBT-PP alloy and a preparation method thereof. Background technique [0002] PBT (polybutylene terephthalate) is a semi-crystalline thermoplastic engineering plastic with high heat resistance, high mechanical properties, chemical resistance, weather resistance, excellent electrical properties and water absorption rate is low. The enhanced and modified PBT has better mechanical properties and is widely used in the fields of electronics, automobiles, machinery and equipment. However, due to the high rigidity of the PBT molecular chain, it is sensitive to the gap, and the gap impact is low. PP (polypropylene) is one of the most widely used general-purpose plastics. It is a semi-crystalline material with light weight, good electrical insulation,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/12C08L23/08C08L51/06C08K13/04C08K7/14C08K5/12C08K5/07C08K5/372
CPCC08L67/02C08L2201/08C08L2205/02C08L2205/03C08L2205/035C08L23/12C08L23/0853C08L51/06C08K13/04C08K7/14C08K5/12C08K5/07C08K5/372
Inventor 钟传新冯玉国黄恒
Owner GUILIN HAOXIN TECH SERVICE