Abstract
Abstract : In this paper, we reported on the effect of a polyethylene glycol-block-polypropylene glycol-block- polyethylene glycol (EO-PPO-EO) triblock copolymer (TBCP) on phase separation, mechanical properties of Epoxy based on bisphenol F-(epichlorohydrin) and hardener(1-methylethyl-1,1'-biphenyl) (izoforon diamine) system. In this work TBCP content used at 3%,6%,9%and 12%wt for epoxy matrix. The optimal TBCP concentration was discovered to be 3%wt in order to produce a good balance of mechanical characteristics. Also The comparative study of morphology and mechanical properties of two systems tungsten carbide (WC) reinforced epoxy resin and WC /triblock (TBCP) /epoxy nanocomposites has been examined. WC added at two systems in three different weight proportions (1%, 2% and 3%). Specimens were fabricated by hand layup technique by pouring epoxy resin and reinforcement mixture into silicon molds .The addition of nanoparticles had no effect on the miscibility of the copolymer on the resin. Tensile ,impact and weaer tests were performed to ASTM standards. From results it was observed that WC reinforcement in epoxy resin results in high tensile strength and modulus also increase impact strength and wear resistance compared to neat epoxy.