Some natural fibers used in polymer composites and their extraction processes: A review

Natural fibers are used as reinforcing materials for more than 2000 years. The need for natural fibers has been emerged due to its weight saving, cost effective, and environmentally superior alternatives to synthetic fibers in composites. The interest in natural fiber reinforced polymer composites has been increased rapidly, due to high performance in mechanical properties, significant processing advantages, and it also provides a solution to environmental pollution. The main objective of this paper is to review and discuss the natural fibers like banana, aloe vera, kenaf, and sisal fibers and their extraction processes.