Journal
EUROPEAN POLYMER JOURNAL
Volume 82, Issue -, Pages 153-165Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2016.07.014
Keywords
Lignin-based epoxy resin; Curing kinetics; Mechanical properties; Fiber-reinforced plastic; Coating
Categories
Funding
- NSERC/FPInnovations Industrial Research Chair Program in Forest Biorefinery
- Ontario Research Fund-Research Excellence (ORF-RE) from Ministry of Economic Development and Innovation
- FPInnovations
- Arclin USA
- BioIndustrial Innovation Centre
- CENNATEK
Ask authors/readers for more resources
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. (C) 2016 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available