高邻位热固性酚醛树脂的合成与工艺优化
Synthesis and process optimization of high-ortho thermosetting phenolic resin
戴赟 1陆奇 2王芳 1刘敏 1周权1
作者信息
- 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
- 2. 浙江晨诺高分子材料有限公司,浙江 嘉兴 314204
- 折叠
摘要
通过研究不同二价金属离子催化剂对高邻位热固性酚醛树脂(HOPF)的邻位诱导效应,优选醋酸锌(Zn(Ac)2)催化制备了 HOPF,并对HOPF的结构进行了表征分析.通过正交试验方法研究催化剂用量、反应时间和醛/酚比(F/P)三个因素对HOPF邻/对位羟甲基比(O/P)、游离醛含量、凝胶时间及固化特性的影响.结果表明:使用Zn(Ac)2合成的HOPF树脂邻位羟甲基含量高(羟甲基指数HI为0.47),固化速度快(150℃下凝胶时间为202 s).经过正交试验分析得到HOPF最佳合成工艺为:反应时间240 min,醛/酚比1.1,催化剂质量分数3％.
Abstract
The proximity induction effect of different divalent metal ion catalysts on high-ortho phenolic resin(HOPF)was studied,and the HOPF was prepared using zinc acetate(Zn(Ac)2)as catalyst,and the structure of HOPF was characterized and analyzed.The effects of catalyst dosage,reaction time and aldehyde/phenol ratio(F/P)on the ortho/para-hydroxymethyl ratio(O/P),free aldehyde content,gel time and curing characteristics of HOPF were studied by orthogonal experiments.The results showed that the ortho-hydroxymethyl content of HOPF resin synthesized by Zn(Ac)2 was high(hydroxymethyl index was 0.47)and the curing speed was fast(gel time was 202 seconds at 150 ℃).The optimal synthesis process of HOPF was as follows:reaction time 240 min,aldehyde/phenol ratio 1.1,and catalyst dosage 3％.
关键词
酚醛树脂/热固性/高邻位/合成/催化剂/醋酸锌/正交试验Key words
procephenolic resin/thermosetting/high-ortho/synthesis/catalyst/zinc acetate/orthogonal experiment引用本文复制引用
基金项目
中央高校基本科研业务费专项资金资助(JKD01231701)
出版年
2024
NETL
NSTL
万方数据