Weather-resistant PBT/AES alloy and preparation method thereof

A technology of weather resistance and PBT resin, which is applied in the field of high-strength impact resistance and weather resistance PBT/AES alloy and its preparation, can solve the problems of insufficient weather resistance of PBT resin, fast crystallization speed of PBT, large shrinkage of PBT, etc. Effects of shrinkage rate, increase in flexural modulus, and reduction in color difference
CN104098876AActive Publication Date: 2014-10-15HEFEI GENIUS NEW MATERIALS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI GENIUS NEW MATERIALS
Publication Date
2014-10-15

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Abstract

The invention provides a weather-resistant PBT / AES alloy and a preparation method thereof. The PBT / AES alloy is prepared from PBT resin, AES resin, calcium carbonate, a silane coupling agent, a compatilizer and an anti-oxidant according to a weight ratio. According to the invention, the AES resin is used as a weather-resisting agent for the alloy, so weatherability of the PBT resin is improved; a calcium carbonate particle is added, so the flexural modulus of the PBT / AES alloy is increased, injection molding shrinkage of the PBT resin is reduced, and the PBT / AES alloy is allowed to be more adaptive to unfavorable environments like an outside ultraviolet ray environment, a wet environment, a raining environment, an illumination environment and an ozone environment.
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Description

[0001] technical field

[0002] The invention relates to the field of polymer material modification, in particular to a high-strength impact-resistant and weather-resistant PBT / AES alloy and a preparation method thereof.

[0003] Background technique

[0004] Polybutylene terephthalate (PBT for short), which belongs to thermoplastic polyester series, is formed by polycondensation of 1.4-pbt butanediol and terephthalic acid (PTA) or terephthalate (DMT) , and a milky white translucent to opaque, crystalline thermoplastic polyester resin made through a kneading process. PBT is one of the toughest engineering thermoplastic materials. It is a semi-crystalline material with very good chemical stability, mechanical strength, electrical insulation properties and thermal stability. Due to these excellent properties, PBT resins are widely used in automotive interiors, motorcycle outer cushions, electric tools and refrigerator casing materials. However, the shrinkage rate of PBT is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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