Fabrication of Woven Jute Fiber Epoxy Bio-Composites through the Epoxy/Thiol-Ene Photopolymerization Technique

An eco-friendly epoxy/thiol-ene photopolymerization (ETEP) process was employed to prepare epoxy bio-composites using a commercial biobased epoxy resin and a woven jute fabric as reinforcement. In this process the components of the thiol-ene system, an allyl-functionalized ditertiary amine curing ag...

Full description

Saved in:
Bibliographic Details
Published in:Polymers 2022-12, Vol.15 (1), p.60
Main Authors: Acosta Ortiz, Ricardo, Yañez Macías, Roberto, Ku Herrera, José de Jesús, García Valdez, Aida Esmeralda
Format: Article
Language:English
Subjects:
Cellulose
Cellulose fibers
Chemical bonds
Composite materials
Curing
Curing agents
Epoxy resins
Jute
Methods
Modulus of rupture in bending
Photoinitiators
Photopolymerization
Plant fiber industry
Polymerization
Radiation
Thiols
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An eco-friendly epoxy/thiol-ene photopolymerization (ETEP) process was employed to prepare epoxy bio-composites using a commercial biobased epoxy resin and a woven jute fabric as reinforcement. In this process the components of the thiol-ene system, an allyl-functionalized ditertiary amine curing agent, a multifunctional thiol and a radical photoinitiator, were added to the epoxy resin to produce a polyether-polythioether crosslinked co-network. Moreover, the jute fibers were functionalized with thiol groups using the 3-mercaptopropyl (trimethoxysilane) with the purpose of creating a chemically bonded polymeric matrix/fiber system. The obtained bio-composites prepared with the thiol-functionalized cellulose fibers exhibited an increase up to 52% and 40% in flexural modulus and strength with respect to the non-functionalized counterparts. Under the three-point bending loadings, the composites displayed higher deformation at break and toughness due to the presence of polythioethers in the co-network. The prepared bio-composites developed in this work are excellent candidates to extend the use of cellulose fibers for structural applications.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym15010060