Hamad, S.F., Farr, N., Fei, T. et al. (5 more authors) (2019) Optimizing size and distribution of voids in phenolic resins through the choice of catalyst types. Journal of Applied Polymer Science, 136 (47). 48249. ISSN 0021-8995
Abstract
Phenolics are widely used for over a century in different industries due to their chemical resistance and thermomechanical properties. However, the presence of voids in phenolic resins has negative effects on the mechanical properties and a conventional approach is to avoid these by utilizing very long cure cycles. Our alternative approach investigates the tailoring of void size and distribution to achieve a better balance between processing time and mechanical properties. Therefore, we produced phenolic resin with a void‐free microstructure by a long cure cycle as a reference. To alter the void size and distributions, we utilized different catalysts and a short cure cycle to obtain phenolic resins and test their flexural properties with respect to the reference. We investigated the fracture surfaces of all materials by SEM, FTIR and compared results to finite element modeling that confirmed the effects of different void size and distributions on the mechanical properties.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 The Authors. Journal of Applied Polymer Science published by Wiley Periodicals, Inc. This is an open access article under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
Keywords: | mechanical properties; microscopy; morphology; porous materials; thermosets |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Funding Information: | Funder Grant number Engineering and Physical Science Research Council (EPSRC) EP/N008065/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 17 Jul 2019 13:49 |
Last Modified: | 08 Dec 2021 10:44 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1002/app.48249 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:148673 |
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