Mode II fracture toughening and healing of composites using supramolecular polymer interlayers

作者: V. Kostopoulos , A. Kotrotsos , A. Baltopoulos , S. Tsantzalis , P. Tsokanas

DOI: 10.3144/EXPRESSPOLYMLETT.2016.85

关键词:

摘要: This study focuses on the transfer of healing functionality supramolecular polymers (SP) to fibre reinforced composites through interleaving. SPs exhibiting self-healing based hydrogen bonds were formed into films and successfully incorporated carbon composites. The effect SP interleaves in-plane fracture toughness subsequent capability hybrid investigated under mode II loading. showed considerable increase since maximum load (P max ) composite approximately doubled, consequently interlaminar energy (G IIC exhibited an reaching nearly 100% compared reference composite. component was activated using external heat. P G recovery after activation measured, a efficiency first cycle close 85% for , eventually dropping 80% while retained around even fourth cycle. Acoustic Emission activity during tests monitored found be strongly reduced due presence SP.

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