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Curing kinetics, mechanical properties and thermomechanical analysis of carbon fiber/epoxy resin laminates with different ply orientations

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Abstract

A carbon fiber/epoxy resin prepreg was tested by DSC, and the phenomenological nth-order and autocatalytic reaction curing kinetic models of the prepreg were established. On this basis, the optimum curing process of the prepreg was obtained. In addition, in order to explore the effect of ply parameters on the mechanical properties of the laminates, the thermomechanical and mechanical properties of the laminates of [0]10, [+ 45/ − 45]5s and [0/90]5s, prepared by compression molding, were investigated. The results show that the autocatalytic reaction model agrees well with the DSC curves obtained from the experimental data. The curing process of the carbon fiber/epoxy resin prepreg is 130 °C /60 + 160 °C/30 min. The flexural and impact strength of [0]10 laminates are higher than that of [+ 45/ − 45]5s and [0/90]5s laminates. The glass transition temperature (Tg) of the laminates is 142–146 °C, and the loss factor of [0]10 laminate is significantly higher than that of [+ 45/ − 45]5s and [0/90]5 s laminates. The great differences in the mechanical properties of the laminates are mainly due to the different amounts of 0° fibers, which lead to the different bearing and deformation capacity of the laminates under external force.

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Acknowledgements

This work was supported by the Natural Science Foundation of Shandong Province (ZR2020QE075), the Shandong Province key research and development projects (2019JMRH0213) and the Zibo City & School Integrated Development Plan Project (2018ZBXC005).

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Authors and Affiliations

  1. College of Materials Science and Engineering, Shandong University of Technology, Zibo, 255049, China

    Chenglin Zhang, Guohua Gu, Shuhua Dong, Zhitao Lin, Chuncheng Wei & Hongsheng Tan

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  1. Chenglin Zhang
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  2. Guohua Gu
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  3. Shuhua Dong
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  4. Zhitao Lin
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  5. Chuncheng Wei
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Correspondence to Shuhua Dong.

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Zhang, C., Gu, G., Dong, S. et al. Curing kinetics, mechanical properties and thermomechanical analysis of carbon fiber/epoxy resin laminates with different ply orientations. Iran Polym J 30, 1297–1308 (2021). https://doi.org/10.1007/s13726-021-00977-y

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  • DOI: https://doi.org/10.1007/s13726-021-00977-y

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