详细信息
氰酸酯树脂改性热固性丁苯树脂的固化及其动力学
Curing-Reaction and Kinetics of Cyanate Ester Resin Modified Thermosetting Butadiene-Styrene Resin
文献类型:期刊文献
中文题名:氰酸酯树脂改性热固性丁苯树脂的固化及其动力学
英文题名:Curing-Reaction and Kinetics of Cyanate Ester Resin Modified Thermosetting Butadiene-Styrene Resin
作者:兰琨[1];周权[1];倪礼忠[1]
机构:[1]华东理工大学材料科学与工程学院,特种功能高分子材料及相关技术教育部重点实验室,上海200237
年份:2011
卷号:24
期号:1
起止页码:60
中文期刊名:功能高分子学报
外文期刊名:Journal of Functional Polymers
收录:CSTPCD;;北大核心:【北大核心2008】;CSCD:【CSCD2011_2012】;
语种:中文
中文关键词:热固性丁苯树脂;氰酸酯;固化动力学
外文关键词:thermosetting butadiene-styrene resin; cyanate ester; curing kinetics
摘要:利用傅里叶变换红外光谱法(FT-IR)和差示扫描量热法(DSC)研究了氰酸酯树脂改性热固性丁苯树脂的固化反应特性及其动力学。以温度-升温速率外推法计算得到固化反应起始温度(Ti0)、峰顶温度(Tp0)和终止温度(Tf0)分别为414.2、444.54、60.6 K,对改性树脂的固化过程进行优化。采用Freeman-Carroll模型计算得出不同升温速率(β)下的反应级数和反应活化能,结果表明:当β<5 K/min时,固化反应级数和反应活化能分别为1.2和155.1 kJ/mol;当β≥5 K/min时,固化平均反应级数和反应活化能分别为2和188.7 kJ/mol。
The character and kinetics of curing reaction were studied by means of FT-IR and differential scanning calorimetry(DSC) for cyanate ester resin modified thermosetting butadiene-styrene resin.The extrapolating temperature-heating rate method was used to determine the initial temperature(T_(i0)),peak temperature(T_(p0)) and terminal temperature(T_(f0)) of the resin,which are 414.2,444.5 and 460.6 K,(respectively,) in(order) to optimize the curing process of the modified resin.The reaction order and the appa-(rent) activation(energy) with different scanning rates were estimated according to Freeman-Carroll's method.(Result shows) that while the scanning rate is less than 5 K/min,the(reaction) order and the apparent(activation) energy are 1.2 and 155.1 kJ/mol,respectively.While the scanning rate is equal to or greater than 5 K/min,reaction order and apparent activation energy are 2 and 188.7 kJ/mol,respectively.
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