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有机硅改性的环氧树脂热焓松弛非线性拟合
Nonlinear curve fitting of the enthalpy relaxation of polysiloxane modified epoxy resins
【摘要】 用差示热分析方法研究反应性和非反应性有机硅改性的环氧树脂(DGEBA)热焓松弛行为,并用Kohlransch-Williams-Watts方程拟合.结果表明,除了自由体积之外,分子链柔顺性是影响物理老化速率的重要因素.
【Abstract】 The enthalpy relaxation behavior of active and non-active polysiloxane modified epoxy resins has been studied by DSC method, and has been curve fitted Kohlransch-Williams-Watts function. The results indicate that besides free volume, flexibility of the Wham plays an important role in influencing the rate of physical ageing.
【关键词】 环氧树脂;
有机硅;
物理老化;
热焓松弛;
曲线拟合;
【Key words】 epoxy resins; polysiloxane; physical ageing; enthalpy relaxation; curve fitting;
【Key words】 epoxy resins; polysiloxane; physical ageing; enthalpy relaxation; curve fitting;
- 【文献出处】 复旦学报(自然科学版) ,JOURNAL OF FUDAN UNIVERSITY , 编辑部邮箱 ,1997年01期
- 【分类号】O633.13
- 【被引频次】1
- 【下载频次】167