季戊四醇接枝三聚氰胺甲醛树脂的制备及性能  

Preparation and Properties of Melamine Formaldehyde Resin Grafted with Pentaerythritol

作　　者：唐敏 朱鑫 苏淑倩 孙明媚 唐林生[1] TANG Min;ZHU Xin;SU Shuqian;SUN Mingmei;TANG Linsheng(College of Chemical Engineering,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学化工学院,山东青岛266042

出　　处：《青岛科技大学学报（自然科学版）》2021年第3期39-44,共6页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金项目(21878165);山东省重点研发计划项目(2018GGX107007)。

摘　　要：以三聚氰胺(MEL)、多聚甲醛和季戊四醇(PER)为原料,通过羟甲基化、醚化和缩聚合成了一种新型的大分子三嗪成炭剂-季戊四醇接枝三聚氰胺甲醛树脂(MF-MPER),其较好的合成条件:n(MEL)∶n(PER)∶n(甲醛)=1∶4.5∶7.5,羟甲基化的pH为9,温度为75℃,时间为1 h;醚化及缩聚的pH为1.5,温度为75℃,时间为4 h。在以上条件下,MF-MPER的质量产率为32.50%,水中的溶解度为0.194 g·(100 g)^(-1)。热重分析和阻燃试验表明,MF-MPER的热稳定性、成炭性和阻燃作用远好于季戊四醇。此外,MF-MPER具有合成工艺简单,合成过程中三废排放量少,原料便宜易得,产品不含氯,难溶于水等优点。A novel macromolecular triazine charring agent-melamine formaldehyde resin grafted with pentaerythritol(MF-MPER)was prepared using melamine,paraformaldehyde and pentaerythritol as raw materials through hydroxymethylation,etherification and polycondensation.When the preparation condition is n(melamine)∶n(PER)∶n(formaldehyde)=1∶4.5∶7.5,the pH of hydroxymethylation is 9,heated to 75℃and maintained for 1 h;the pH of etherification and polycondensation is 1.5,keep the temperature at 75℃for 4 h,the reaction result is better.Under the above conditions,the mass yield of MF-MPER is 32.50%,the water-solubility is 0.194 g·(100 g)^(-1).Thermogravimetric analysis(TGA)and flame retardant test showed that MF-MPER exhibits better thermal stability,charring property and flame retardancy than pentaerythritol.Besides,MF-MPER has some advantages such as simple synthesis process,less emissions of three wastes in the synthesis process,cheap and available raw materials,chlorine-free and insoluble in water.

关 键 词：季戊四醇接枝三聚氰胺甲醛树脂 成炭剂 稳定性 阻燃作用 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]