文献类型：期刊文献

中文题名：桐油改性双环戊二烯不饱和树脂的固化研究

英文题名：Study on the cuing of tung oil modified dicyclopentadiene unsaturated polyester

作者：崔竞方[1] 谭卫红[1] 刘承果[1] 周永红[1]

第一作者：崔竞方

机构：[1]中国林业科学研究院林产化学工业研究所

年份：2013

卷号：28

期号：2

起止页码：13-17

中文期刊名：热固性树脂

外文期刊名：Thermosetting Resin

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD_E2013_2014】；

基金：国家十二五科技支撑计划(2012BAD32B05);中国林业科学研究院林业新技术研究所所长基金(CAFINT2011C02)资助

语种：中文

中文关键词：不饱和聚酯;桐油;双环戊二烯;固化特性;固化动力学

外文关键词：unsaturated polyester; tung oil; dicyclopentadiene; curing characteristics; curing kinetics

分类号：TQ323.42

摘要：采用红外光谱(FT-IR)和示差扫描量热法(DSC)对桐油改性DCPD-UPR的固化特性和固化动力学进行了研究。利用Kissinger方程和Crane方程计算得到桐油改性DCPD-UPR的表观活化能94.03 kJ/mol,反应级数为0.94,指前因子为2.185×1012。利用T-β外推法确定了桐油改性DCPD-UPR的固化温度为107.28℃,后处理温度为120.65℃。较未改性的DCPD-UPR,桐油改性DCPD-UPR的固化放热曲线平缓,放热峰温度低,固化时间长,可以避免树脂固化成型时翘曲、开裂等现象的发生。
The curing characteristics and curing kinetics of tung oil modified dicyclopentadiene unsaturated polyester（DCPD-UPR） were investigated by FT-IR and DSC.The apparent activation energy,reaction order and pre-exponential factor were 94.03 kJ/mol,0.94 and 2.185×1012,respectively,calculated by Kissinger equation and Crane equation.The curing temperature of the tung oil-modified DCPD-UPR was 107.28 °C determined by T-β extrapolation and post-processing temperature was 120.65 °C.The tung oil-modified DCPD-UPR had more gentle curing exothermic curve,lower exothermic peak temperature and longer curing time than that of unmodified DCPD-UPR and could avoid the occurrence of phenomena such as warping and cracking in the curing molding.