Study of Mechanical Properties of Composites Based on Wool Fibers With Unsaturated Polyester Resin

摘要

Wool fiber is very popular for textile garment purpose. The major engineering application of these fiber has been for thermal insulations in Apparel applications. Composites are even prepared in textiles as blended material in multi strand yarn as thread and woven or knitted in fabric form. Mechanical properties were not considered relevant for cloth applications. Considerable research has been conducted with natural cellulosic fibers as a source of reinforcement for composite but very little work being conducted as natural protein fibers although the physical properties of wool fiber supports for good tensile strength and elongation. The crimp or scales of the wool fiber can be additive advantage in impact strength of composites. This research is an attempt to produce wool in sliver and Noil form composites with unsaturated polyester resin to test the mechanical behavior of wool fiber of different form in composites and also to identify the impact of these on Mechanical properties of composite. The tensile strength at 10 % loading of wool (noil) and at 10 % loading of wool (sliver) was found to be 250.09 kg/ cm2 and 405 cm2 respectively. While the elongation was found to be 11.11 % and 16.66 % at 8 % loading of wool (noil) and wool (sliver). The flexural strength was found to be 132.85 kg/ cm2 and 116.90 cm2 at 10 % loading of wool (noil) and wool (sliver). Whereas the izod impact strength was found to be 3.26 kg.m/inch and 3.89 kg.m/inch at 10 % loading of wool (noil) and wool (sliver).