Abstract
The thermal and volumetric change properties of diglycidyl ether of bisphenol A (DGEBA) epoxy resin were studied using two thermal cationic catalysts: benzylquinoxalinium hexafluoroantimonate (BQH) and triphenyl benzyl phosphonium hexafluoroantimonate (TBPH). The cure reactivity and thermal stability of the DGEBA/BQH system were higher than those of the DGEBA/TBPH system; this was because of the slow thermal diffusion rate of the DGEBA/TBPH system induced by the bulky phenyl groups in TBPH. The volumetric change values of DGEBA/BQH and DGEBA/TBPH were −0.17% and 7.95%, respectively.
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Park, SJ., Heo, GY. & Jin, FL. Thermal and cure shrinkage behaviors of epoxy resins cured by thermal cationic catalysts. Macromol. Res. 23, 156–160 (2015). https://doi.org/10.1007/s13233-015-3028-y
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DOI: https://doi.org/10.1007/s13233-015-3028-y