高内相乳液模板法制备聚氨酯多孔材料  

Synthesis of porous polyurethane foam via high internal emulsion template method

作　　者：张晓茜 王俊杰 蒋浩谦 张岩悦 罗盛峰 岳冰倩 ZHANG Xiaoqian;WANG Junjie;JIANG Haoqian;LUO Shengfeng;ZHANG Yanyue;YUE Bingqian(Department of Environmental Engineering,North China Institute of Science and Technology,Yanjiao,065201,China)

机构地区：[1]华北科技学院环境工程学院,北京东燕郊065201

出　　处：《华北科技学院学报》2019年第2期90-93,共4页Journal of North China Institute of Science and Technology

基　　金：中央高校基本科研业务费专项(3142017097;3142017065);河北省自然科学基金(E2018508091)

摘　　要：选用反应性乳化剂聚甘油蓖麻醇酯(PGPR),采用高内相乳液模板法成功制备得到了孔径均匀可调的聚氨酯多孔材料,并通过扫面电子显微镜和数码相机等方法研究了异氰酸酯单体与乳化剂匹配性、乳化剂用量、水相含量等因素对体系的影响。分析结果表明,PGPR不仅作为乳化剂,还能与异氰酸酯单体反应,形成高粘度壁垒层,提高了高内相乳液的稳定性;乳化剂含量在50 wt%以内时,可得到孔形貌为球形的多孔聚氨酯材料;随着分散相水含量的增加,聚氨酯孔径逐渐减小且孔壁塌陷较少。By selecting the reactive emulsifier polyglycerol polyricinoleate(PGPR),the porous polyurethane,whose pore diameter was adjustable,was synthesized by high internal emulsion template method.The influence factors,such as reaction monomer isocyanate match with the emulsifier,emulsifier dosage,and water content,were studied by scanning electron microscope and digital camera.The results showed that the PGPR is not only used as emulsifier,but also can react with isocyanate to form high viscosity barrier layer,which improves the stability of high internal phase emulsion.We also found that when the emulsifier dosage was within 50 wt% ,the pore morphology of polyurethane foam was spherical.With the increase of the content of dispersed phase,the pore diameter of polyurethane decreased gradually and the pore wall collapsed less.

关 键 词：聚氨酯 高内相乳液法 多孔结构 反应性乳化剂 

分 类 号：TQ311[化学工程—高聚物工业]