Research on the Elasticity Modulus of Short Glass Fiber/ Thermoplastic Polyurethane (SGF-TPU) Composites

摘要

Based on fiber length, fiber orientation distribution and fraction volume, the Halpin-Tsai' elasticity modulus prediction equation were modified and the elasticity modulus of SGF/TPU composites was experimentally studied. The relationship between the structure and elasticity modulus of SGF/TPU composites was discussed. Results showed that the elasticity modulus of GF-TPU composite rapidly increased as the increasing of fiber volume fraction (V_f) and the increasing of the fiber length at the range of 0%-20%F_f. The modified prediction equation of the elasticity modulus fits the test result quite well.