Studying the Effects of Degassing Treatment and Adding Coupling Agent on Flexural Properties of Milled Fiber/Epoxy Composites

It the current work, different composite samples have been fabricated through mixing and stirring 1wt.% of milled E-glass, S-glass, and high strength carbon fibers with a commercial hot-cure epoxy resin. The effects of performing a medium pressure degassing treatment and integral blending of a silane coupling agent were evaluated based on the flexural properties of the samples. After conducting the three-point bend tests, the fractured surfaces were investigated by a Scanning Electron Microscope (SEM) to find the involved toughening mechanisms. According to the results, interface de-bonding, fiber pull-out, and fish-bone mechanisms were activated in numerous sites. Furthermore, the flexural properties of the silane-modified and degassed epoxy reinforced with the milled E-glass fiber were improved more than that of the other composite samples and the pure epoxy.

کلیدواژه های Studying the Effects of Degassing Treatment and Adding Coupling Agent on Flexural Properties of Milled Fiber/Epoxy Composites:

Coupling agent ، Degassing treatment ، Flexural properties ، Milled fiber