In previous years natural fibers are frequently used to reinforce materials. The biodegradability is the
main advantage of natural fibers. The disadvantage of using natural fibers in polymer composite material is their
poor adhesion ability with a polymeric matrix which affects the various physical and mechanical properties of the
composite material. To overcome this disadvantage, the surface of the natural fibers needs to be modified so that
a good fiber-matrix adhesion can be established. The various treatment methods such as physical treatment and
chemical treatment methods for the improvement of fiber-matrix adhesion have been discussed in this paper. So
the overall objective of this review paper is to highlight the previous and recent studies related to the surface
treatment of natural fibers and their reinforcement in thermoplastic polymer matrix composites. The improvement
in various properties specifically mechanical properties by reinforcing these fibers into thermoplastic polymer
matrix composites has also been reported in this paper.
Keywords: Fibers, surface modification, composites, polyethylene, polypropylene & PVC.
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