正交试验法研究改性酚醛浸渍树脂  

Research on modified phenolic impregnating resin by orthogonal experiment

作　　者：张南哲[1] 郝志刚 张乘炫 ZHANG Nanzhe;HAO Zhigang;ZHANG Chengxuan(College of Engineering,Yanbian University,Yanji 133002,China;College of Medical,Yanbian University,Yanji 133002,China)

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

出　　处：《延边大学学报（自然科学版）》2021年第4期314-318,共5页Journal of Yanbian University（Natural Science Edition）

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、三聚氰胺为增强剂、聚乙烯醇为增韧剂,用二次升温缩聚的方法制备了改性钡酚醛浸渍树脂,并且利用正交试验法分析讨论了浸渍树脂的配方和合成工艺.结果表明,在最优合成条件(甲醛/苯酚摩尔比为1.8、三聚氰胺/苯酚摩尔比为0.09、低温(65℃)缩聚时间为45 min)下合成的改性钡酚醛树脂的聚合时间、弹性模量、静曲强度、抗冲击强度等性能均显著优于未改性钡酚醛树脂.该实验方法及结果可为提高浸渍树脂的性能和木模板的生产效率提供参考.In order to improve the performance of phenolic impregnating resin for building wood formworks,first,the modified barium phenolic impregnated resin was prepared by the secondary warning condensation polymerization method with barium hydroxide as catalyst,melamine as enhancer and polyvinyl alcohol as toughening agent;then,the resin formula and the synthetic process were analyzed and discussed by orthogonal experiment.The results showed that the polymerization time,elastic modulus,static flexure strength and impact strength of modified barium phenolic resin were obviously better than those of unmodified,under the optimal syntheti conditions(the molar ratio of formaldehyde to phenol is 1.8,the molar ratio of melamine to phenol is 0.09,the low temperature is 65℃,and the polycondensation time is 45 min).The experimental methods and results can provide reference to improve the performance of impregnating resin and the production efficiency of wood formworks.

关 键 词：酚醛浸渍树脂 正交试验法 极差分析 方差分析 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]