纳米相改性环氧树脂固化动力学研究
A Study on Curing Kinetics of Nano-Phase Modified Epoxy Resin.
作者信息
Ma Hailing, Zhang Xin, Ju Feifei, Tsai Sang-Bing
机构信息
School of Mathematics and Physics, Jinggangshan University, Ji'an, 343009, China.
State Key Laboratory of Coal Mine Disaster Dynamics and Control, College of Resource and Environmental Sciences, Chongqing University, Chongqing, 400030, China.
出版信息
Sci Rep. 2018 Feb 14;8(1):3045. doi: 10.1038/s41598-018-21208-0.
In this paper, DSC curves at different heating rates were measured by DSC, the characteristic curing temperature was determined, and the optimum curing conditions were obtained. The KAS method, Friedman method and FWO method were used to analyze the DSC curves respectively. The kinetic parameters and the reaction mechanism function of the curing system were obtained, and the results of different analytical methods were compared and analyzed. Result from fitting and verification of the curing kinetic model for the curing system of the nano-phase modified epoxy resin further demonstrates that the nano-particle could play a catalytic role in the curing reaction of the epoxy resin and could reduce the apparent activation energy of the system, thus it is considered as a breakthrough in the field of resin research.
本文采用差示扫描量热法（DSC）测定了不同升温速率下的DSC曲线，确定了特征固化温度，得到了最佳固化条件。分别采用KAS法、Friedman法和FWO法对DSC曲线进行分析，获得了固化体系的动力学参数和反应机理函数，并对不同分析方法的结果进行了比较和分析。纳米相改性环氧树脂固化体系固化动力学模型的拟合与验证结果进一步表明，纳米粒子在环氧树脂固化反应中可起到催化作用，能降低体系的表观活化能，因此被认为是树脂研究领域的一项突破。
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