文献类型：期刊文献

中文题名：酚醛树脂硫化丁腈橡胶的动力学

英文题名：Kinetics of phenolic resin vulcanized butadiene-acrylonitrile rubber

作者：汪大贤[1];陆冲[1];王斌[1];高凡[1];胡晶[1];陆伟鑫[1]

机构：[1]华东理工大学材料科学与工程学院,上海200030

年份：2020

卷号：43

期号：3

起止页码：230

中文期刊名：合成橡胶工业

外文期刊名：China Synthetic Rubber Industry

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；

语种：中文

中文关键词：丁腈橡胶;酚醛树脂;氯化亚锡二水合物;硫化机理;Diels-Alder反应;硫化动力学

外文关键词：butadiene-acrylonitrile rubber;phenolic resin;stannous chloride dihydrate;vulcanization mechanism;Diels-Alder reaction;vulcanization kinetic

摘要：以氯化亚锡二水合物为活性剂制备了酚醛树脂(PF)硫化丁腈橡胶(NBR),考察了氯化亚锡二水合物对PF硫化NBR硫化特性的影响,并探讨了硫化机理。分别采用差减微分法(Freeman–Carroll)、Kissinger法和Ozawa法计算了硫化反应的动力学参数,建立了反应的自催化模型以及n级反应模型,得到了反应的动力学方程。结果表明,所建模型能够反映PF硫化NBR的反应过程,研究体系的n级动力学模型为dα/dt=1.7×10^16 e-133466(1-α)0.95。
Phenolic resin(PF)-vulcanized butadiene-acrylonitrile rubber(NBR)was prepared with stannous chloride dihydrate(SnCl2·2H2O)as active agent.The effect of SnCl2·2H2O on the vulcanization characteristics of PF-vulcanized NBR was investigated and the vulcanization mechanism was discussed.The kinetic parameters of the vulcanization were calculated by Freeman-Carroll,Kissinger method and Ozawa method respectively.The autocatalytic model of the reaction and the n order reaction model were established,and the kinetic equation of the reaction was obtained.The results showed that the addition of SnCl2·2H2O reduced the activation energy of the reaction,which had a significant promotion effect on the vulcanization process,and kinetic model for PF-vulcanized NBR system was dα/dt=1.7×10^16e-133466(1-α)0.95.