壳聚糖的制备、成膜及其影响因素的研究  

PROCESS AND AFFECTING FACTORS IN CHITOSAN PREPARATION AND MEMBRANE FORMATION

作　　者：叶菊招[1] 冯冰凌[1] 郎雪梅[1] 张宜珍[1] 刘晖[1] 

机构地区：[1]华南理工大学化工学院

出　　处：《高分子材料科学与工程》1997年第S1期140-144,共5页Polymer Materials Science & Engineering

基　　金：广东省自然科学基金

摘　　要：用甲壳素为原料在一定条件下脱去乙酰基制得壳聚糖，壳聚糖溶于２％醋酸溶液，在一定条件下加入一定量的添加剂和交联剂Ｈ２ＳＯ４，让其在０．４５μｍ孔径的醋酸纤维支撑体上流延成膜。结果表明，本实验条件下制得的ＣＳ膜对浓度ｎｍｇ／Ｌ酸性红染料的脱色率达９７％，可用于印染废水或其它溶液的脱色分离。he article reports the process of preparing chitosan (CS) and then forming a membrane. After being deacetylated, under certain conditions, chitin changes into CS. CS is dissolved in 2% acetic solution to which additives and crosslinking agent H2SO4 added quantitatively. Then the CS solution is speaded on the CA supported with 0.45 μm aperture and membrane is formed once solidifing. It was shown that CS membrane produced under the experiment conditions was used in decolorization of n mg/L acidred dyeing waste water, in which the decolorizing effeciency arrived to 97%. CS membrane can be used for separation and decolorization of dyeing waste water and other solutions.

关 键 词：天然高分子 壳聚糖 微孔滤膜 支撑体 

分 类 号：O636.1[理学—高分子化学]