Curing kinetics and mechanical properties of bio-based epoxy composites comprising lignin-based epoxy resins

Fatemeh Ferdosian; Yongsheng Zhang; Zhongshun Yuan; Mark Anderson; Chunbao (Charles) Xu

doi:10.1016/j.eurpolymj.2016.07.014

Curing kinetics and mechanical properties of bio-based epoxy composites comprising lignin-based epoxy resins

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Overview

132 Scopus Citations

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Author(s)

Fatemeh Ferdosian
Yongsheng Zhang
Zhongshun Yuan
Mark Anderson
Chunbao (Charles) Xu

Detail(s)

Original language	English
Pages (from-to)	153-165
Journal / Publication	European Polymer Journal
Volume	82
Publication status	Published - 1 Sept 2016
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.eurpolymj.2016.07.014 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84978861877&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(55526004-c2e0-4538-9ce2-04f882380748).html

Abstract

Lignin-based epoxy resins derived from de-polymerized Kraft/organosolv lignins were blended with a conventional bisphenol A (BPA)-based epoxy resin at various percentages to prepare bio-based epoxy systems as polymer matrices for manufacturing of fiber-reinforced plastics (FRPs) and coatings. The curing process of epoxy composites was studied using DSC and the activation energy was calculated by isoconversional methods. Epoxy composites comprising a low percentage (25 wt%) of lignin-based epoxy resin can be cured faster than the pure BPA-based epoxy resin used in particular at the early stage of curing. However, blending a large amount (>50 wt%) of lignin-based epoxy resin with the BPA-based epoxy resin retarded the curing process particularly at the late stage of curing. Tensile and flexural strengths of the prepared FRPs using bio-based epoxy composites were found to be superior or comparable to those of the FRP with the pure BPA-based epoxy resin when the lignin-based epoxy resin blending ratio is less than 50–75 wt%. Furthermore, the bio-based epoxy films comprising up to 50 wt% of DOL-based epoxy resin were exhibited high adhesion strength on a metal substrate. © 2016 Elsevier Ltd

Research Area(s)

Coating, Curing kinetics, Fiber-reinforced plastic, Lignin-based epoxy resin, Mechanical properties

Bibliographic Note

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