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Polymers and Polymer Composites

Study on effect of surface treating method on mechanical behavior of three plant fiber reinforced polypropylene composites

January 1, 2017 By: Ma L; He L J; Shao S Y Research article

Title: Study on effect of surface treating method on mechanical behavior of three plant fiber reinforced polypropylene composites
Page Range: p.93-102
Author(s): Ma L; He L J; Shao S Y
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 25
Issue No: No.1

Abstract
The surface modification effects of triethoxysilane (KH-550), methacryloxy propyl tri-methoxy silane (KH-570), and maleic anhydride grafted polypropylene (MAPP) on sawdust (SD), wheat straw (WS) and cellulose (CE) were studied by a tensile test, as well as surface morphology observation on reinforced composites. The results revealed that MAPP was the most effective coupling agent, and SD composites performed better than WS and CE. The tensile test results indicated that the optimum conditions for coupling agents were 1 wt.% for silane coupling agents and 5 wt.% for MAPP. SEM studies confirmed the tensile test results, proving that adhesion was improved with the employment of MAPP. MAPP-treated composite samples presented a prevailed fibre broken pattern which resulted in strong fibre-matrix interface bonding, whereas silane treatments did not provide an obvious enhancement in adhesion between the fibre and the matrix. 28 Refs.

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