Influence of lignin on thermo-mechanical behavior of modified novolac resins

J. D. MARTÍNEZ, C. GÓMEZ AND P. GAÑÁN

Rio de Janeiro Brazil

Congreso; 11 International conference of advanced materials; 2009

Phenolic resins are considered an attractive area for commercial lignin applications because of its chemical reactivity. Lignin is available, less toxic and less expensive raw material than phenol. In this study, two unmodified novolac resins and three lignin modified resins were analyzed. The influence of type of lignin on the curing process and thermo-mechanical behavior of modified novolac-resins were studied. According with FTIR analysis of curing processes, reductions on the final conversion were registered of modified resins respect to unmodified resins. Overall, this same trend was present in the thermal and mechanical behavior between these two groups of resins.