Effect of fiber treatments on mechanical properties of coir or oil palm fiber reinforced polyester composites

TLDR

Plant fibers used as reinforcement in polyester matrices require addressing compatibility issues, as their hydrophilic surfaces and the hydrophobic polymer lead to poor dispersion and wetting, severely reducing composite mechanical properties. This study investigates the effect of fiber treatments—acetylation, silane, or titanate coupling agents—on the mechanical properties of coir or oil palm reinforced polyester composites. The authors examine how chemical modification of fibers alters fiber–matrix compatibility to improve composite mechanical performance. © 2000 John Wiley & Sons, Inc.

Abstract

The use of plant fibers as a reinforcement in polyester matrices requires the issue of compatibility between the two phases to be addressed. Because plant fibers present hydrophilic surfaces and polyesters are generally hydrophobic, poor fiber–matrix dispersion and wetting of the fibers by the matrix may result. As a consequence, the mechanical properties of the composite are severely reduced. This study considers the effect of fiber treatment by chemical modification of the fibers (acetylation) or the use of silane or titanate coupling agents on the mechanical properties of coir or oil palm reinforced polyester composites. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 1685–1697, 2000