- 专利标题： REINFORCED POLYPROPYLENE MATERIAL AND PREPARATION METHOD THEREOF
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申请号： EP20932283.3申请日： 2020-11-19
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公开(公告)号： EP4119613A1公开(公告)日： 2023-01-18
- 发明人: LU, Zhanquan , HUANG, Xianbo , YE, Nanbiao , CHENG, Shuwen , GUAN, Annan , LIU, Lewen , YANG, Xiaoyun
- 申请人： Kingfa Sci. & Tech. Co., Ltd.
- 申请人地址： CN Guangzhou, Guangdong 510663 Huang, Shifang No.33 Kefeng Road Science City Guangzhou Hi-Tech Industrial Development Zone
- 代理机构： dompatent von Kreisler Selting Werner - Partnerschaft von Patent- und Rechtsanwälten mbB
- 优先权： CN202010311842 20200420
- 国际公布： WO2021212820 20211028
- 主分类号： C08L53/00
- IPC分类号： C08L53/00 ; C08L23/12 ; C08L23/14 ; C08L51/06 ; C08K13/04 ; C08K7/14 ; C08K7/10 ; C08K3/22 ; C08J5/04
摘要：
The present invention discloses a reinforced polypropylene material comprising in parts by weight:
a, 10 to 90 parts of a polypropylene resin;
b, 0.5 to 25 parts of a compatilizer;
c, 5 to 60 parts of reinforcing fibers;
d, 0.1 to 20 parts of low-hardness colorant powder;
wherein the reinforcing fibers comprise a component I, a component II and a component III:
the component I is composed of reinforcing fibers with a length of 0.1 mm - 0.6 mm, accounting for 35% - 50% of a number of reinforcing fibers;
the component II is composed of reinforcing fibers with a length of 0.7 mm - 1.3 mm, accounting for 35% - 45% of the number of reinforcing fibers;
the component III is composed of reinforcing fibers with a length of 1.4 mm - 2.0 mm, accounting for 5% - 20% of the number of reinforcing fibers.
By adjusting the length and content distribution of the reinforcing fibers in the formulas of reinforced polypropylene material, greatly retaining the length of reinforcing fibers in the reinforced polypropylene material, and by combining a specific amount of low-hardness colorant powder and supplementing with a specific amount of compatilizer, the obtained reinforced polypropylene material would have obviously improved low-temperature tenacity and long-term weathering resistance.
a, 10 to 90 parts of a polypropylene resin;
b, 0.5 to 25 parts of a compatilizer;
c, 5 to 60 parts of reinforcing fibers;
d, 0.1 to 20 parts of low-hardness colorant powder;
wherein the reinforcing fibers comprise a component I, a component II and a component III:
the component I is composed of reinforcing fibers with a length of 0.1 mm - 0.6 mm, accounting for 35% - 50% of a number of reinforcing fibers;
the component II is composed of reinforcing fibers with a length of 0.7 mm - 1.3 mm, accounting for 35% - 45% of the number of reinforcing fibers;
the component III is composed of reinforcing fibers with a length of 1.4 mm - 2.0 mm, accounting for 5% - 20% of the number of reinforcing fibers.
By adjusting the length and content distribution of the reinforcing fibers in the formulas of reinforced polypropylene material, greatly retaining the length of reinforcing fibers in the reinforced polypropylene material, and by combining a specific amount of low-hardness colorant powder and supplementing with a specific amount of compatilizer, the obtained reinforced polypropylene material would have obviously improved low-temperature tenacity and long-term weathering resistance.
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