摘要
利用傅-克烷基化反应将丁腈橡胶与苯酚连接,再与甲醛进行聚合制得丁腈橡胶改性的酚醛树脂,并对工艺进行优化。最优化工艺为:甲醛和苯酚的摩尔比(F/P)=0.75,傅-克烷基化反应温度为130℃,反应时间为4 h,以氢氟酸为催化剂,催化剂用量为1.0%,所得改性酚醛树脂聚速为66 s,软化点为103.8℃。
The phenolic resin modified by nitrile rubber was prepared by connecting nitrile rubber with phenol by F-C alkylation reaction and then polymerization with formaldehyde,and the process was optimized.The optimum conditions of the process were as follows:the molar ratio(F/P)of formaldehyde and phenol=0.75,the reaction temperature of F-C alkylation was 130℃,the reaction time was 4 h,the hydrofluoric acid was used as the catalyst,,the amount of catalyst was 1.0%,and the polymerization rate of the modified phenolic resin was 66 s,and the softening point was 103.8℃.
作者
陆倩颖
缪程平
杨凌伟
何朝阳
杜宁肖
王嘉俊
LU Qian-ying;MIAO Cheng-ping;YANG Ling-wei;HE Chao-yang;DU Ning-xiao;WANG Jia-jun(College of Biological and Chemical Engineering,Jiaxing University,Jiaxing,Zhejiang 314001,China;Key Laboratory of Clean Chemical Process of Jiaxing,Jiaxing,Zhejiang 314001,China)
出处
《浙江化工》
CAS
2020年第6期25-27,共3页
Zhejiang Chemical Industry
基金
嘉兴学院重点SRT项目(8517192022)。
