Abstract

In this one of the work a hybrid composites materials were prepared which
consist polymer blend – Phenol formaldehyde – Novolac type and epoxy resins
reinforced by silica, alumina powder and asbestos fibers with two volume
fractions (30%, 40%), six hybrids prepared. Bending test was done in order to
determine the Young's modulus in different temperatures and different chemical
solutions. the result show that Young's modulus decreases with increasing
temperatures and with increasing the immersion times in different chemical
solutions , and the result show that the samples H6 (Volume fraction 40%) gives
high values of young modulus while the samples H1 (Volume fraction 30%) gives
low values of young modulus