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首页> 外文期刊>Journal of Applied Polymer Science >Modification of a two-component system by introducing an epoxy-reactive diluent: Construction of a time-temperature-transformation (TTT) diagram
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Modification of a two-component system by introducing an epoxy-reactive diluent: Construction of a time-temperature-transformation (TTT) diagram

机译：通过引入环氧反应性稀释剂来修改两组分系统：构造时间-温度-转变（TTT）图

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摘要

Curing reactions of a three-component system consisting of an epoxy resin diglycidyl ether of bisphenol A (DGEBA n = 0), 1,2-diaminecyclohexane as curing agent, and vinylcyclohexene dioxide as a reactive diluent were studied to calculate a time-temperature-transformation isothermal cure diagram for this system. Differential scanning calorimetry (DSC) was used to calculate the vitrification times. DSC data show a one-to-one relationship between T-g and fractional conversion alpha, independent of cure temperature. As a consequence, T-g can be used as a measure of conversion. The activation energy for the polymerization overall reaction was calculated from the gel times obtained using the solubility test (58.5 +/- 1.3 kJ/mol). This value was similar to the results obtained for other similar epoxy systems. (C) 2004 Wiley Periodicals, Inc. [References: 37]
机译：研究了由双酚A的环氧树脂二缩水甘油醚（DGEBA n = 0），1,2-二胺环己烷作为固化剂和乙烯基环己烯二氧化物作为反应性稀释剂的三组分体系的固化反应，以计算时间-温度-该系统的变换等温固化图。差示扫描量热法（DSC）用于计算玻璃化时间。 DSC数据显示了T-g与分数转化率α之间的一对一关系，与固化温度无关。结果，T-g可以用作转化的量度。由使用溶解度测试获得的胶凝时间（58.5 +/- 1.3 kJ / mol）计算聚合整体反应的活化能。该值类似于从其他类似的环氧体系获得的结果。 （C）2004 Wiley Periodicals，Inc. [参考：37]

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