Abstract

Plant fiber reinforced polymer composites are experiencing rapid growth in terms of applications where they may be subject to corrosion and wear. The present work explores the possibility of reinforcing polyvinyl chloride (PVC)/sorghum straw (SS) composites with micro-silica (MS) and poly(acrylonitrile-styrene-acrylate) (ASA) for developing a new corrosion and wear-resistant material. Sea water (salinity 3.5%, temperature 55 °C) and acid rain (pH 2.5, temperature 55 °C) were utilized to simulate extreme cyclic corrosion conditions. The results revealed that the wear and corrosion resistance of the PVC/SS composites was significantly enhanced by the addition of 6 wt% MS (particle size 2.6 μm) and 34% ASA, which was attributed to that the MS and ASA could render the PVC matrix with the improved toughness, strength, and heat resistance.

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