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Issue 99, 2014
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Hardening process and properties of an epoxy resin with bio-based hardener derived from furfural

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Abstract

The development of bio-based plastics is an important research area because of its contribution to environmental preservation. Herein, we evaluated the properties of a bio-based epoxy resin synthesised using 2,2-bis(4-glycidyloxyphenyl)propane as the epoxy monomer and oxabicyclodicarboxylic anhydride (OBCA) as a bio-based hardener derived from furfural. The major hardening process of the resin at 130 °C, manifested in an exponential increase in the storage modulus, was complete within an hour, which was longer than that for a commercially available petroleum-based epoxy resin hardened using cis-cyclohexane dicarboxylic anhydride (CDCA). This indicated that OBCA was less reactive than CDCA, which has a similar structure. The bio-based epoxy resin showed excellent transparency in the visible light region and was thermally stable, with 5% weight loss at temperatures exceeding 270 °C. Glass transition temperatures were above 100 °C, and mechanical properties were moderately better than those of the commercially available epoxy resin. Moreover, the bio-based carbon content ranged from 21% to 53%, depending on the amount of OBCA added. Thus, the bio-based OBCA is a good hardener for a bio-based epoxy resin that can be used as a value-added material in industrial applications.

Graphical abstract: Hardening process and properties of an epoxy resin with bio-based hardener derived from furfural

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Publication details

The article was received on 01 Oct 2014, accepted on 20 Oct 2014 and first published on 21 Oct 2014


Article type: Paper
DOI: 10.1039/C4RA11636D
Author version available: Download Author version (PDF)
Citation: RSC Adv., 2014,4, 55723-55731
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    Hardening process and properties of an epoxy resin with bio-based hardener derived from furfural

    Y. Tachibana, J. Torii, K. Kasuya, M. Funabashi and M. Kunioka, RSC Adv., 2014, 4, 55723
    DOI: 10.1039/C4RA11636D

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