异辛酸镧对半硬质聚氨酯泡沫材料的影响  

Effect of Lanthanum(Ⅲ) 2-Ethylhexanoate on Performance of Semi-rigid Polyurethane Foam Materials

作　　者：蓝平[1] 乔磊磊[1] 廖安平[1] 蓝丽红[1] 黄巧嫦 张森华[1] 韦飞阳 覃小玲[1] 

机构地区：[1]广西民族大学化学化工学院广西高校化学与生物转化过程新技术重点实验室,广西南宁530006

出　　处：《塑料》2015年第5期116-119,共4页Plastics

基　　金：广西高校人才小高地建设创新团队资助计划项目(桂教人201147号);广西自然科学基金重点项目(2011GXNSFD018015);广西高等学校优秀中青年骨干教师培养工程(桂教人201316号);广西民族大学研究生教育创新计划项目(gxun-chx2013098)

摘　　要：半硬质聚氨酯泡沫材料属于较新型的泡沫材料,催化剂对合成聚氨酯整皮泡沫材料的质量起到最为关键的作用,采用"络合萃取"法来制备异辛酸镧稀土,实验条件下,反应时间为30 min,温度控制为70℃,氯化镧料液浓度为120 g/L,氯化镧的转化率最高,可达99%以上。在全水发泡半硬质聚氨酯泡沫体系中添加异辛酸镧,结果表明:异辛酸镧的加入能明显改善泡沫的形态,泡孔尺寸更加均匀,具有更好的形态结构。Semi-rigid polyurethane foam was a new kind of foam material. The catalysts were the most important for the quality of synthesized polyurethane integral skin foam material. Lanthanum （III） 2-ethylhexanoate was prepared by complexation extraction process with reaction time of 30 min, temperature of 70 ℃ , and lanthanum chloride concentration of 120 g/L. The conversion of lanthanum chloride was the best （ more than 99% ） under above conditions. The results showed that the foam morphology was apparently improved and the cell-sizes were more uniform with the addition of lanthanum（III） 2- ethylhexanoate.

关 键 词：异辛酸镧 全水发泡 聚氨酯泡沫 泡孔 稀土 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]