ToF-SIMS investigation of epoxy resin curing reaction at different resin to hardener ratios
Awaja, Firas, van Riessen, Grant, Kelly, Georgina, Fox, Bronwyn and Pigram, Paul J 2008, ToF-SIMS investigation of epoxy resin curing reaction at different resin to hardener ratios, Journal of applied polymer science, vol. 110, no. 5, pp. 2711-2717.
Title
ToF-SIMS investigation of epoxy resin curing reaction at different resin to hardener ratios
Time-of-flight secondary ion mass spectrometry (ToF-SIMS) and principal components analysis (PCA) were used to analyze diglycidyl ether of bisphenol A (DGEBA) and diglycidyl ether of bisphenol F (DGEBF) epoxy resin blend cured with isophorone diamine (IPD) hardener at different resin to hardener ratios. The aim was to establish correlations between the hardener concentration and the nature and progress of the crosslinking reaction. Insights into the cured resin structure revealed using ToF-SIMS are discussed. Three sets of significant secondary ions have been identified by PCA. Secondary showed variance related to the completion of the curing reaction. Relative intensities of CxHyNz+ ions in the cured resin samples are indicative of the un-reacted and partially reacted hardener molecules, and are found to be proportional to the resin to hardener mixing ratio. The relative ion intensities of the aliphatic hydrocarbon ions are shown to relate to the cured resin crosslinking density.
Language
eng
Field of Research
091209 Polymers and Plastics
Socio Economic Objective
860607 Plastic Products (incl. Construction Materials)