改性酚醛浸渍树脂的研究  

Preparation of Modified Phenolic Impregnating Resin

作　　者：张乘炫 郝志刚 张南哲[2] Zhang Chengxuan;Hao Zhigang;Zhang Nanzhe(Yanbian University,Yanji 133002,China)

机构地区：[1]延边大学医学院,吉林延吉133002 [2]延边大学工学院,吉林延吉133002

出　　处：《山东化工》2020年第22期40-42,45,共4页Shandong Chemical Industry

基　　金：延边大学大学生创新创业训练计划项目(ydcxcy2018180)。

摘　　要：为了提高建筑木模板用酚醛浸渍树脂的性能,以氢氧化钡为催化剂、三聚氰胺和聚乙烯醇为改性剂,利用正交试验法研究了钡酚醛浸渍树脂的改性。结果表明,当n(甲醛)∶n(苯酚)比为1.9、三聚氰胺/苯酚物质的量比为0.09、PVA为干树脂总量的0.5%以及低温(65℃)缩聚时间45 min时,其静曲强度、弹性模量、聚合时间及稳定性等性能最优,且比未改性钡酚醛树脂显著提高。In order to improve the performance of phenolic impregnating resin for wooden building formworks,barium hydroxide as catalyst,melamine and polyvinyl alcohol as modifier were used to study the modification of barium phenolic impregnated resin by orthogonal test.The results show that when the molar ratio of formaldehyde to phenol is 1.9,the molar ratio of melamine to phenol is 0.09,the PVA is 0.5%of the total dry resin and the condensation time of low temperature(65℃)is 45 min,the static flexural strength,elastic modulus,polymerization time and stability are the best,and the ratio is significantly higher than that of unmodified barium phenolic resin.

关 键 词：酚醛树脂 改性浸渍树脂 正交试验法 极差分析 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]