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Rheology of Epoxy/Thermoplastic Blends

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Handbook of Epoxy Blends

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Abstract

Epoxy–thermosets hold value in many industrial applications, owing to their favorable characteristics including excellent adhesion, ease of processing, and thermal and chemical stability. Despite these benefits, the high cross-linking density of epoxy–thermosets also results in a brittleness that limits utility in many high-performance structures that are subject to high impact, such as aerospace and automotive applications. The inclusion of thermoplastics within the epoxy can improve toughness and impact resistance. Rheological analysis of epoxy–thermoplastic blends serves as a critical analytical technique for evaluating the viscoelastic properties during the pre-cure formulating stage and during the cure. Chemorheology is useful to characterize the distinct viscoelastic changes that occur during the cure of epoxy–thermoplastics, which involve phase separation, epoxy gelation, and vitrification. Through rheological modeling, the behavior during cure can be further evaluated to predict flow behavior and mechanisms of phase separation. Importantly, rheology meets the analytical demands in industrial applications, where details concerning preprocessing conditions, quality control, and cure cycle design are crucial.

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Authors and Affiliations

  1. Advanced Materials and System Integration, Research Triangle Institute (RTI) International, 3040 Cornwallis rd, Research Triangle Park, NC, 27709, USA

    Leah M. Johnson & Nicolas D. Huffman

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  1. Leah M. Johnson
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  2. Nicolas D. Huffman
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Correspondence to Leah M. Johnson or Nicolas D. Huffman .

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Editors and Affiliations

  1. Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi, India

    Jyotishkumar Parameswaranpillai

  2. Institute for Frontier Materials, Deakin University, Geelong, Victoria, Australia

    Nishar Hameed

  3. Leibniz-Institut für Polymerforschung Dresden e.V., Dresden, Germany

    Jürgen Pionteck

  4. Department of Chemical Engineering, National Cheng Kung University, Taiwan, China

    Eamor M. Woo

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Johnson, L.M., Huffman, N.D. (2017). Rheology of Epoxy/Thermoplastic Blends. In: Parameswaranpillai, J., Hameed, N., Pionteck, J., Woo, E. (eds) Handbook of Epoxy Blends. Springer, Cham. https://doi.org/10.1007/978-3-319-40043-3_21

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