南京理工大学学报（自然科学版）2011，Vol.35Issue(5)：726-730,5.
膜吸收工艺中溶液对聚丙烯膜结构和形态的影响
Effects of Solution on Structure and Morphology of Polypropylene Membrane in Membrane Absorption Process
摘要
Abstract
In order to study the effects of solutions on structure and morphology of polypropylene membrane in natural solution surroundings, aqueous monoethanolamine ( MEA), aqueous potassium glycinate(GLY) .aqueous potassium hydroxide(KOH) and water are selected to test the changes of surface structure and morphology of polypropylene ( PP) membrane in the solutions and water surroundings by using the micro-weighing, scanning electron microscope ( SEM ) infrared spectrum (IR)and dipping method. Effects of species and concentrations of the solutions and dipping time on swelling rate, configuration and surface chemical composition of PP membrane are studied. The results show that the three solutions significantly influence the swelling rates of PP membrane. Effect of MEA on the swelling rate is the largest and that of water is the smallest. The effect order is: MEA> GLY> KOH > H2O. Effect of MEA concentration on the swelling rate rapidly increases and then decreases with the increase of the concentration. The results of SEM indicate that MEA solution makes membrane micropore sizes enlarge obviously. Effects of CLY and KOH solutions on micropore sizes are smaller. The longer the dipping time, the larger the effects are. The results of IR demonstrate that changes of surface properties of the membrane are the greatest in the MEA solution and the changes in amide solution are larger than that in hydroxyl solution.关键词
聚丙烯微孔膜/膜吸收/溶液/膜结构/膜形态Key words
polypropylene micropore membrane/membrane absorption/solution/membrane structure/membrane morphology分类
化学化工引用本文复制引用
陆建刚,花爱春,刘士鑫,刘聪,樊璠..膜吸收工艺中溶液对聚丙烯膜结构和形态的影响[J].南京理工大学学报（自然科学版）,2011,35(5):726-730,5.基金项目
江苏省高校自然科学研究计划(09KJB610003) （09KJB610003）
南京信息工程大学教改基金(11CX046) （11CX046）
