文档介绍：第 2 3 卷第 2 期石油化工高等学校学报 Vol .2 3 No .2
2010 年 6 月 JO U RN AL O F PET ROC H EM ICAL U NIV ERSIT IES Jun .2010
文章编号:1006 - 396X (2010 )02 - 0061 - 03
壳聚糖缓释膜的制备及性能研究
蒋珍菊1 , 孙仲2 , 王周玉1
(1 .西华大学生物工程学院,四川成都 610039 ; 2 .辽河石油勘探局国际事业部,辽宁盘锦 124010 )
摘要: 以壳聚糖为原料,采用流延法制备了壳聚糖膜,并与戊二醛交联所制备的膜进行了简单的性能比较,
得出实验条件为:壳聚糖质量分数为 1 % 的溶液,交联温度为 70 ℃以上,交联时间 1 h 以上,自然晾干或 80 ℃烘干,
成膜比较好。结果表明,壳聚糖膜有一定的抗拉强度(最高可达到 9 .92 M Pa )和较好的断裂伸长率(最高可达到
11 .75 % ) ,没有耐酸性。而与戊二醛交联后壳聚糖膜的抗拉强度能达到(96 .64 M Pa )和断裂伸长率能达到
(10 .92 % ) ,耐酸性能也得到了大大提高。
关键词: 壳聚糖; 交联; 膜; 性能
中图分类号: T Q050 .4 文献标识码:A doi :10 .3696 /j .issn .1006 - 396X .2010 .02 .017
1 2 1
(1 . School o f B ioenginee ring , X ihua Unive rsity ,Chengdu S ichuan 610039 ,P .R .China ;
2 . Inte rnational A ff airs Dep artm ent , L iaohe Petroleum Ex p lo ration Bureau , Panj in L iaoning 124010 , P .R .China)
Received 8 J anuary 2009 ; rev ised 11 November 2009 ; acce p ted 10 M arch 2010
Abstract : T he chitosan membrane and crosslineked w ere prepared by docto r - blade casting process w ith chitosan . T he
chitosan solution concentration as w ell as temperature capacity of glutaraldehyde crosslinked chitosan mem branes have been
studied .T he best experimental conditions of cross - linking of chitosan film have been obtained as follow s :the concentration of
chitosan solution is 1 % ,cross linking tem perature w ould be exceeded 70 ℃,cross linking time m