Published : 2021-01-15

Mechanical strength of epoxy/organoclay/carbon fiber hybrid composites

Abstract

The influence of organoclay (bentonite BS) modified with quaternary ammonium (QAS) and phosphonium salts (QPS) on the mechanical properties of epoxy/organoclay/carbon fiber hybrid composites was investigated. The longitudinal flexural strength of the composites containing 1 wt % ­BSQAS and BSQPS increased by 4 and 10 %, respectively, compared to the reference sample (epoxy resin/carbon fiber). Moreover, there was also a significant improvement, up to 13 %, of Young's modulus and transverse elastic modulus for the composites with modified bentonites. On the basis of the atomic force microscopy cross-section analysis (AFM), it was found that the composites with matrix containing the modified bentonites were characterized with larger interfacial surface, about 50 %, than that of unmodified matrix (epoxy resin/carbon fiber).


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Oliwa, R., Heneczkowski, M., Oliwa, J., & Oleksy, M. (2021). Mechanical strength of epoxy/organoclay/carbon fiber hybrid composites. Polimery, 62(9), 658–665. https://doi.org/10.14314/polimery.2017.658