Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 158, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2022.106982
Keywords
Debonding; Delamination; Fracture toughness; Electro-spinning
Funding
- Turkish Scientific and Technical Research Council - TUBITAK [214M110]
- Turkish Scientific and Technical Research Council
Ask authors/readers for more resources
Interleaving fiber reinforced layered composites with thermoplastic veils can activate different toughening mechanisms. The blend composition plays a crucial role in activating these mechanisms.
Interleaving fiber reinforced layered composites with thermoplastic veils is a strategy that has been examined by using electrospun fibers of homopolymers as well as their physical mixtures. Separate toughening mechanisms were activated by the individual presence of the physically mixed fibers in previous studies. Here, we show that it is possible to initiate a concerted action of these mechanisms by interleaving electrospun fiber veils based on blends of PCL and PA6 (80/20, 60/40 and 40/60). Blend composition was pivotal in activating different toughening mechanisms. Fiber debonding was unobstructed in PA6 interleaves in mode I; whereas PCL toughened the interfaces by plasticizing the epoxy. Debonding and effective bridging along the strong axes of fibers was only possible at a certain blend composition that permitted penetration of PCL into the epoxy matrix upon melting during curing and allowed these regions to retard debonding.
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