Title:
REINFORCED POLYPROPYLENE MATERIAL AND PREPARATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/212820
Kind Code:
A1
Abstract:
Disclosed is a reinforced polypropylene material, comprising in parts by weight: a, 10-90 parts of polypropylene resin, b, 0.5-25 parts of compatilizer, c, 5-60 parts of reinforced fibers and d, 0.1-20 parts of low-hardness toner. The reinforced fibers comprise a component I, a component II and a component III, where the component I is composed of reinforced fibers with a length of 0.1-0.6mm and accounts for 35-50% of number of reinforced fibers, the component II is composed of reinforced fibers with a length of 0.7-1.3mm and accounts for 35-45% of number of reinforced fibers, and component III is composed of reinforced fibers with a length of 1.4-2.0mm and accounts for 5-20% of number of reinforced fibers. The present invention, by adjusting the length and the content distribution of the reinforced fibers in the reinforced polypropylene material formula, greatly preserves the maintained length of the reinforced fibers in the reinforced polypropylene material, and by combining a specific amount of low-hardness toner and a specific amount of compatilizer, the low-temperature resilience and the long-term weatherability performance of the resulting reinforced polypropylene material are significantly improved.
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Inventors:
LU ZHANQUAN (CN)
HUANG XIANBO (CN)
YE NANBIAO (CN)
CHENG SHUWEN (CN)
GUAN ANNAN (CN)
LIU LEWEN (CN)
YANG XIAOYUN (CN)
HUANG XIANBO (CN)
YE NANBIAO (CN)
CHENG SHUWEN (CN)
GUAN ANNAN (CN)
LIU LEWEN (CN)
YANG XIAOYUN (CN)
Application Number:
PCT/CN2020/130134
Publication Date:
October 28, 2021
Filing Date:
November 19, 2020
Export Citation:
Assignee:
KINGFA SCIENCE & TECHNOLOGY CO (CN)
International Classes:
C08L53/00; C08J5/04; C08K3/22; C08K7/10; C08K7/14; C08K13/04; C08L23/12; C08L23/14; C08L51/06
Foreign References:
| CN111534037A | 2020-08-14 | |||
| CN102504405A | 2012-06-20 | |||
| US20180186999A1 | 2018-07-05 |
Attorney, Agent or Firm:
GUANGZHOU WISON I.P. LAW FIRM (CN)
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