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Advanced isoconversional cure kinetic analysis of epoxy/poly(furfuryl alcohol) bio‐resin system
Author(s) -
Mohajeri Sahar,
Vafayan Mehdy,
Ghanbaralizadeh Roza,
Pazokifard Shahla,
Zohuriaan Mehr Mohammad Jalal
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.45432
Subject(s) - furfuryl alcohol , diglycidyl ether , epoxy , differential scanning calorimetry , materials science , polymer chemistry , autocatalysis , kinetics , bisphenol a , chemistry , organic chemistry , composite material , catalysis , physics , quantum mechanics , thermodynamics
Furfuryl alcohol as a biomass‐derived monomer was used for synthesizing poly(furfuryl alcohol). A diglycidyl ether of bisphenol A (DGEBA) epoxy resin along with 3% and 15% by weight of the poly(furfuryl alcohol) was cured using an aliphatic amine hardener. The cure kinetics of the DGEBA/poly(furfuryl alcohol)/amine systems were investigated by nonisothermal differential scanning calorimetry. The kinetic triplets [ E α , A α , and f (α)] were computed by using an integral isoconversional method. Based on the E α ‐dependency results a single‐step autocatalytic model was suggested for the reactions mechanism, however, the A α ‐dependency and f (α) analysis did not confirm the suggested model. Detailed kinetics analysis revealed that the cure reaction mechanism of the DGEBA did not change due to the presence of the poly(furfuryl alcohol) in the degree of conversion range < 0.75, nevertheless, it dramatically changed in the degree of conversion range > 0.75 due to the presence of 15 wt % poly(furfuryl alcohol). © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 45432.