Thermal Degradation of Bisphenol A Type Novolac Epoxy Resin Cured with 4,4′-Diaminodiphenyl Sulfone
作者： Yanfang Liu , Zhongjie Du , Chen Zhang , Hangquan Li
DOI: 10.1080/10236660600750224
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摘要: Abstract The curing reaction of bisphenol A type novolac epoxy resin (bis-ANER) with 4,4′-diaminodiphenyl sulfone (DDS) was investigated Fourier-transform infrared (FTIR) spectroscopy. It found that the obvious structure changes involve disappearance epoxide groups and increase hydroxyls. Thermal degradation bis-ANER/DDS network studied thermogravimetry in both dynamic air nitrogen atmospheres. takes place two steps but only one step nitrogen. FTIR measurement carried out to identify during at different steps. In addition, thermal mechanism Coats-Redfern method showed kinetic model function obeys Avrami-Erofeev equation, is, g(α) = [−ln(1 − α)]2/3.
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