Compression molding of powder impregnating long glass fiber reinforced polypropylene

被引：0

作者：

Zhou, Xiaodong ^{[1
]}

Zhang, Chunguang ^{[1
]}

Pan, Wei ^{[1
]}

Dai, Gance ^{[1
]}

机构：

[1] Polymer Proc. Lab., EastChina Univ. of Sci. and Technol., Shanghai 200237, China

来源：

Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2003年 / 20卷 / 02期

关键词：

Compression molding - Glass fibers - Interfaces (materials) - Mechanical properties - Thermoplastics;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The prepreg of continuous glass fiber reinforced polypropylene (PP) was prepared by using powder impregnation process and cut into the pellets of long fiber reinforced PP. The compression molding process of such a long fiber reinforced PP was investigated. The mechanical properties and their influential factors of the products were also studied. It was found that the parts with an excellent mechanical property could be obtained after the powder impregnating long fiber reinforced PP was compression molded. With the increment in the cut length of the prepreg and the increase of fiber content, the mechanical property increased. The modification of the interfacial adhesion between glass fiber and PP by using functionalized polypropylene grafted polar group (MPP) played a significant role in improving the mechanical properties of the composites, but the impact strength decreased at the time when the MPP content exceeded certain level. The mechanical properties would increase when increasing the molding pressure and the temperature of mould and molding compound during the compression molding processing.

引用

页码：19 / 24