不同条件对SA/GT/CS三元复合水凝胶微球溶胀性能的影响  

Effect of different conditions on the sodium alginate/gelatin/chitosan blend beads' swelling

作　　者：张琨[1] 赵玉强[1] 易建[1] 张志斌[1] 

机构地区：[1]西南交通大学生物工程学院,成都610031

出　　处：《化工新型材料》2008年第5期66-67,共2页New Chemical Materials

基　　金：国家自然科学基金资助项目(50573061);四川省应用基础研究项目(07JY029-065);西南交通大学科学研究基金资助项目(2006B52)

摘　　要：将海藻酸钠／明胶共混液滴入含有CaC12的壳聚糖醋酸溶液中，制备出SA／CS／GT三元复合水凝胶微球。改变SA／GT的质量配比、盐离子浓度、温度，考察不同条件下对复合微球溶胀度的影响。结果表明：当SA：GT质量比为10：0．6、10：0．8，CaC12浓度为3％～4％，所成微球的溶胀性能较好；随温度的升高，溶胀度不断增大。The compound of sodium alginate（SA） and gelatin（GT） was dropped into chitosan（CS） at ambient temperature. Polymeric blend beads of sodium alginate/gelatin/chitosan were prepared by solidifying with calcium chloride （CaC12）. Effects of variables such as SA/GT ratio, calcium chloride content were discussed by considering the swelling capacity of beads. It was found that a high swelling capacity can be obtained when the SA/GT ratio was 10 ： 0. 6 or 10 ： 0.8, the calcium chloride content was 3 %-4%, and the temperature was higher.

关 键 词：海藻酸钠 壳聚糖 明胶 水凝胶微球 溶胀 

分 类 号：O648.17[理学—物理化学]