Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 68, Issue 3-4, Pages 987-994Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2007.07.010
Keywords
carbon fiber; polymer-matrix composite; nanofibrous membrane; fracture toughness; microstructure
Categories
Ask authors/readers for more resources
A novel approach for toughening carbon fiber/epoxy composite using electrospun polysulfone (PSF) nanofibrous membranes was performed. As-received membranes were composed of nanofibers with random orientation, and were directly electrospun onto layers of carbon fiber/epoxy prepregs to toughen the composites. According to the random dispersed nanofibers in the membranes, the inhornogeneous phase separation of polysulfone, which was generated in situ along the nanofibers direction during the curing of epoxy matrix, was proposed. Owing to the aligned PSF spheres, excellent mechanical properties of composites were obtained. Mode I interlaminar fracture toughness (G(IC)) increased 158%, 261% and 28 No by loading 1 wt%, 3 wt% and 5 wt% nanofibrous membranes, which was far higher than those of the same content PSF films toughened composites. DMTA tests revealed good compatibility between nanofibrous membranes and epoxy matrix. And the flexural properties increased slightly compared to untoughened composite. (c) 2007 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available