Kingfa Sci.&tech.co., Ltd.

Yanfeng Automotive Trim Systems Co., Ltd.

Zhongfu Luo

Chao Zhang

Xianbo Huang

Peng Wang

Bo Yang

Yonghua Li

Nanbiao Ye

Chao Ding

Jianfeng Hou

Chunhua Chen

Liang Lei

Wenlong Li

Yinghui Zhou

Lan Zhao

Xueyong Zhang

Guangwei Zhang

Li Peng

The present invention discloses a melt impregnation device and a melt impregnation method. Through an impregnation chamber with a corrugated shape, when a resin melt-distributing runner is connected with a peak position of the impregnation chamber, a chamber vertical height of the peak position of the impregnation chamber is larger than a chamber vertical height of a trough position of the impregnation chamber, and when the resin melt-distributing runner is connected with the trough position of the impregnation chamber, the chamber vertical height of the trough position of the impregnation chamber is larger than the chamber vertical height of the peak position of the impregnation chamber. The present invention can balance an impregnating effect of a continuous fiber band, can carry a broken fiber hairiness which is generated during the impregnation out of an impregnation area, avoids a broken yarn, and enhances a production stability and a production efficiency.

Melt impregnation device and melt impregnation method

A polypropylene composition, a preparation method thereof, and a film or a sheet prepared from the polypropylene composition and use thereof. The composition includes 45 parts to 75 parts of a polypropylene, 10 parts to 35 parts of an elastomer, 5 parts to 20 parts of a polyethylene, 0.1 parts to 0.5 parts of an antioxidant, and 0.1 parts to 0.5 parts of a lubricant. A half peak width of a crystallization peak of the polypropylene is 5&#xb0; C. to 10&#xb0; C., and a peak temperature of the crystallization peak of the polypropylene is 105&#xb0; C. to 115&#xb0; C. The polypropylene composition has a good tenacity, especially a&#x2212;30&#xb0; C. low-temperature impact performance. The film or the sheet prepared from the composition and applied to automotive interior parts, can enable the external accessories not only to be less likely to generate sharp fragments while being strongly impacted, but also to have a matte characteristic.

Polypropylene composition and preparation method thereof, and film or sheet prepared from the polypropylene composition and use thereof

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Guangzhou, China

Zhongfu Luo