Low velocity impact response and post impact assessment of carbon fiber/epoxy composites modified with Diels-Alder based healing agent. A novel approach
作者： V. Kostopoulos , A. Kotrotsos , A. Geitona , S. Tsantzalis
DOI: 10.1016/J.COMPOSITESA.2020.106151
关键词:
摘要: Abstract Bis-maleimides (BMIs) exhibit healing functionalities on polymer level due to their thermally reversible nature. In the current investigation, BMI self-healing (SH) resin based Diels-Alder (DA) reaction mechanism was integrated into high performance carbon fiber reinforced plastics (CFRPs) by solution electrospinning process (SEP). More precisely, reference and modified CFRPs having [45/0/−45/90]2S stacking sequence, with similar volume fractions have been manufactured tested under low velocity impact (LVI) post behaviour assessed compression tests. According experimental results, it shown that all exhibited comparable damage resistance taking consideration C-scan inspections after impact, while prior LVI revealed no degradation effects agent (SHA) incorporation. Compression (CAI) tests show expected of compressive strength for CFRPs. Finally, activation SHA able fully restore area residual characteristics were significantly improved.
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