Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 94, Issue 3, Pages 743-747Publisher
SPRINGER
DOI: 10.1007/s10973-008-9366-7
Keywords
autocatalytic cure rate; clinoptilolite; epoxy
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The cure kinetics of epoxy resin and epoxy resin containing 10 mass% of natural zeolite were investigated using differential scanning calorimetry (DSC). The conformity of the cure kinetic data of epoxy and epoxy-zeolite system was checked with the auto-catalytic cure rate model. The results indicated that the hydroxyl group on the zeolite surface played a significant role in the autocatalytic reaction mechanism. This group was able to form a new transition state between anhydride hardener and epoxide group. The natural zeolite particles acted as catalyst for the epoxy system by promoting its curing rate.
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