Title:
PBT/PET ALLOY, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/160155
Kind Code:
A1
Abstract:
Provided is a PBT/PET alloy comprising the following components in parts by weight: 30-50 parts of PBT resin; 13-35 parts of PET resin; 8-15 parts of brominated flame retardant; 2-5 parts of antimonous oxide, and 10-50 parts of glass fiber. On the basis of the total weight of the PBT/PET alloy, each gram of PBT/PET alloy contains 150-400 micrograms of acetaldehyde. The antimonous oxide is utilized to degrade PET (with the content of acetaldehyde controlled by controlling the content of the components, a temperature setting in a melt extrusion process, and the retention time of the melt in a screw), and meanwhile, a transesterification reaction of two resins, PBT/PET, during melt processing can be utilized to promote the degradation of the PET resin to generate acetaldehyde with specific content. When a resin matrix contains a specific amount of acetaldehyde, the fluidity of the alloy is improved, and the polarity is stronger to promote the infiltration and coating of the glass fiber, so that floating fiber defects are reduced and the smoothness of the surface is improved, resulting in a significant increase in the glossiness.
Inventors:
ZHU WEN (CN)
CHEN PINGXU (CN)
YE NANBIAO (CN)
MO WENJIE (CN)
FU XUEJUN (CN)
CHEN PINGXU (CN)
YE NANBIAO (CN)
MO WENJIE (CN)
FU XUEJUN (CN)
Application Number:
PCT/CN2022/139532
Publication Date:
August 31, 2023
Filing Date:
December 16, 2022
Export Citation:
Assignee:
KINGFA SCIENCE & TECHNOLOGY CO (CN)
International Classes:
C08L67/02; C08K3/22; C08K7/14
Domestic Patent References:
| WO2011162145A1 | 2011-12-29 |
Foreign References:
| CN114561089A | 2022-05-31 | |||
| CN103781846A | 2014-05-07 | |||
| CN102070884A | 2011-05-25 | |||
| CN112592566A | 2021-04-02 | |||
| CN102850730A | 2013-01-02 |
Attorney, Agent or Firm:
GUANGZHOU WISON I.P. LAW FIRM (CN)
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