Experimental Investigation Of Mechanical Properties On Polymer Matrix Composites

摘要

In recent years enormous interest was paid in the development of natural fiber reinforced composite materials. Much attention was given to concerns with environment, cost competitiveness and concerns around the sustainability of materials production. Natural fibers have significant potential as they are environmental friendly alternatives to reinforcements such as glass fibers. Many natural fibers have been identified which have many advantages such as light weight, non-abrasive, non toxic, low cost and biodegradable properties. Despite their numerous advantages, they suffer from low modulus of electricity, low specific strength and stiffness and poor moisture resistance compared with synthetic fiber reinforced composites. Hybrid composite materials that contain two or more different types of fibers in which one type of fiber could complement with what are lacking in the other. Hybridization of natural fiber with stronger and high corrosion resistance synthetic fibers like glass can improve the various properties such as strength, stiffness etc. The present work consists of mechanical properties of natural fiber reinforced (NFR) hybrid composites consisting of polyester resin matrix reinforced with broom grass root particulate and glass fiber mat. The fabrication method was by simple mechanical stirring and hand layup method and with washed natural fiber. The objective of this work is to develop and fabricate of a new class of polyester based hybrid composites reinforced with short glass fiber mat and broom grass root particulate fibers, Evaluation of mechanical properties such as tensile strength, compression strength, impact strength and hardness for these composites and water absorption behaviour and also to study the influence of particulate content on the mechanical behaviour of the composites.