Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11032197 | Polymer Testing | 2018 | 24 Pages |
Abstract
This study proves the ability of polyvinyl butyral (PVB) nanofiber to improve the mode I and mode II interlaminar fracture toughness of out of autoclave phenolic-based composites. For investigation fracture behavior of glass-phenolic composites, a mode-I and mode II fracture test were carried out standard UD laminated and nanoweb interleaved specimens. PVB nanoweb with 25â¯Î¼m thickness was placed in the laminate mid-planes which was subsequently subjected to a double cantilever beam and end-notched flexure tests. It was found that PVB nanofiber thanks to its excellent adhesion property with phenolic resin and unique features of nanoscales, has a tunable effect on improving mode I and mode II interlayer fracture toughness. PVB nanoweb provided the best all-round performance with fracture toughness improvements of 61% and 34.5% mode I and mode II, respectively; while, the maximum bending load has been improved.
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Authors
P. Kheirkhah Barzoki, A.M. Rezadoust, M. Latifi,