可发性钡酚醛泡沫树脂的合成与表征  

Synthesis and Characterization of Foaming Barium Phenolic Foam Resin

作　　者：耿刚强[1] 苗鹏[1] 王宏震[1] 赵诚斌[1] 张超[1] 赵永芳[1] 许洋[1] 

机构地区：[1]长安大学材料科学与工程学院,陕西西安710064

出　　处：《高分子材料科学与工程》2014年第7期20-23,共4页Polymer Materials Science & Engineering

基　　金：横向攻关课题

摘　　要：以Ba（OH）2·8H2O为催化剂,通过逐步升温滴加甲醛的方法合成了低游离酚可发性钡酚醛泡沫树脂。探索了反应原料摩尔比、催化剂用量、反应时间、反应温度对可发性甲阶酚醛树脂游离酚和羟甲基含量的影响。确定合适的合成工艺为F/P为1∶1.3-1.6、反应温度80℃-85℃、反应时间2 h、催化剂用量5%,最终钡酚醛泡沫树脂游离酚含量为3%,残炭达44.3%,固含量为78%~85%,氧指数（LOI）为54.9,并通过红外光谱分析和热失重分析测试表征。Using Ba（OH）2· 8H20 as catalyst, low free formaldehyde barium phenolic foam resin was synthesized by gradually warming dropping. The effect of different mole ratio of F/P, catalyst amount, reaction time, reaction temperature on the free phenol and methylol content of foaming barium phenolic foam resin was explored. The appropriate synthetic processes was determined, such as the mole ratio of F/P 1 ： 1.3 to 1.6, the reaction temperature 80 ℃ to 85 ℃, reaction time 2h, the catalyst amount of 5 %. The free phenol content of final barium phenolic foam resin is 3%, carbon residue is 44.3%, solid content is from 78% to 8596, the oxygen index （LOI） is 54.9, analyzed by FT-IR and TG characterization.

关 键 词：游离酚 钡酚醛泡沫树脂 羟甲基 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]