Mechanical and thermal transmission properties of carbon nanofiber-dispersed carbon/phenolic multiscale composites

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Abstract

The present article reports the development and characterization of carbon nanofiber (CNF)-incorporated carbon/phenolic multiscale composites. Vapor-grown CNFs were dispersed homogeneously in to phenolic resin using an effective dispersion route, and carbon fabrics were subsequently impregnated with the CNF-dispersed resin to develop carbon fiber/CNF/phenolic resin multiscale composites. Mechanical and thermal transmission properties of multiscale composites were characterized. Elastic modulus and thermal conductivity of neat carbon/phenolic and multiscale composites were predicted and compared with the experimental results. It was observed that incorporation of only 1.5 wt % CNF resulted in 10% improvement in Young's modulus, 12% increase in tensile strength, and 36% increase in thermal conductivity of carbon/phenolic composites. Fracture surface of composite samples revealed the formation of stronger fiber/matrix interface in case of multiscale composites than neat carbon/phenolic composites. Enhancement of above properties through CNF addition has been explained, and the difference between the predicted values and experimental results has been discussed. Copyright © 2013 Wiley Periodicals, Inc.

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Bhattacharyya, A., Rana, S., Parveen, S., Fangueiro, R., Alagirusamy, R., & Joshi, M. (2013). Mechanical and thermal transmission properties of carbon nanofiber-dispersed carbon/phenolic multiscale composites. Journal of Applied Polymer Science, 129(5), 2383–2392. https://doi.org/10.1002/app.38947

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