Preparation and Evaluation of Epoxy Resin Prepared from the Liquefied Product of Cotton Stalk

Liquefaction of waste lignocellulosic biomass is a viable technology for replacing fossil fuels and meeting sustainable development goals. In this study, bio-based epoxy resins were prepared from polyhydric-alcohol-liquefied cotton stalk by glycidyl etherification. The was liquefied in polyethylene glycol/glycerol cosolvent under H2SO4 catalysis. Epon 828 cotton-stalk-based could be cured using methylhexahydrophthalic anhydride as the curing agent, process exothermic. thermal properties tensile strength investigated to examine effect adding resin on performance copolymerized resin. Further, liquefied-cotton-stalk-based blended with at different ratios (10, 20, 30 mass%) agent presence 2-methylimidazole catalyst. An increase peak temperature reduction heat activation energy observed increasing content (35.4 MPa) elastic modulus (1.5 GPa) highly crosslinked equivalent those petroleum-based 828.