Title: Interfacial and mechanical properties of continuous fiber-reinforced pp via pre impregnated winding
Page Range: p.23-28
Author(s): Jiuqiang Song; Yan Qin; Jia Chen; Siwen Qin
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 25
Issue No: No.1
Abstract
In this paper, a continuous glass fibre-reinforced polypropylene prepreg was prepared by fibre treatment with a silane coupling agent and MAH-g-PP resin. Continuous glass fibre-reinforced polypropylene sheets were made from prepreg and PP mats by hot-pressing; they displayed exceptional performance. This paper studies the effects of maleic anhydride grafting on the polypropylene crystallinity and MAH-g-PP content in the prepreg, and the mechanical properties of the composites. The results showed that modifying PP with maleic anhydride decreased the tacticity of the polypropylene molecular chain, which reduced the crystallinity and melting point. An excellent interface formed between the polypropylene and fibre after the glass fibre was treated with a silane coupling agent and MAH-g-PP resin. The mechanical properties of the polymer materials displayed more favourable properties as MAH-g-PP content increased; the ideal MAH-g-PP content was 50%. 20 Refs.
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