The Effect Of Temperatures and Chemical Solutions on The Elasticity Modulus Of Hybrid Composite Materials
Dr. Ali H. Rsan , Dr.Balkees M. Dheyaa , Dr. Salam H. Ali

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 .