水溶性壳聚糖改性天然胶乳的性能研究  

Properties of Water-soluble Chitosan Modified Natural Rubber Latex

作　　者：高徐必[1] 田晓慧[1] 孙金煜[1] 元以中[1] 

机构地区：[1]华东理工大学材料科学与工程学院,上海200237

出　　处：《橡胶工业》2012年第11期659-664,共6页China Rubber Industry

基　　金：上海市基础研究重点项目(09JC1404300);国家"863"计划项目(2009AA035002)

摘　　要：采用乙酰化反应制备的水溶性壳聚糖改性天然胶乳(NRL),并对其性能和结构进行研究。结果表明:当pH值小于11时,水溶性壳聚糖在水中能够获得最佳溶解度。水溶性壳聚糖改性NRL胶膜的表面平整,致密性和耐溶剂性能优于纯NRL胶膜。当水溶性壳聚糖用量为1.5份时,NRL胶膜的综合物理性能最佳。水溶性壳聚糖赋予了NRL胶膜良好的生物相容性,达到了改善过敏性的目的,在医疗卫生领域具有广阔的应用前景。The water-soluble chitosan prepared by acetylation was used to modify natural rubber latex（NRL）,and the properties and structure of the modified NRL were investigated.The results showed that,the optimal pH value to dissolve water-soluble chitosan in water was less than 11.The surface of modified NRL film was smooth,and the film compactness and solvent resistance were better than those of unmodified NRL film.When the addition level of water-soluble chitosan was 1.5 phr,the optimum comprehensive physical properties of the NRL film were obtained.The modified NRL film possessed better biocompatibility,caused fewer allergies and had more application prospects in medical service domain.

关 键 词：水溶性壳聚糖 天然胶乳 改性 

分 类 号：TQ331.2[化学工程—橡胶工业] TQ330.387