Fabrication and study the mechanical properties of alkaline unidirectional long kenaf fiber without any filler reinforced polymer composites

The Tensile stress, Bending stress and Hardness of Alkaline kenaf fabric reinforced composites were evaluated and compared with those normal polyester resin and observe the improvements in the properties. The test samples were fabricated using the Hand layup process and the specimens were out in accordance with the ASTM standards. The kenaf fiber was added in steps of 10%, 20%, 30%, 40% and 50%. It was found that the mechanical property increased with increasing content. Maximum value was determined. Addition of Alkaline and kenaf fiber shows an improvement in the tensile strength, hardness, Bending strength of fabric-reinforced polyester composites.