海藻酸钙冻干多孔膜的制备研究(英文)  

Preparation of Porous Ca-alginate Films by Using Rreeze-drying Method

作　　者：郝晓丽[1] 夏延致[1] 纪全[1] 孔庆山[1] 隋坤艳[1] 

机构地区：[1]青岛大学纤维新材料与现代纺织国家重点实验室培育基地,青岛266071

出　　处：《科学技术与工程》2010年第11期2800-2802,共3页Science Technology and Engineering

基　　金：国家自然科学基金(50673046)资助

摘　　要：采用冷冻干燥法制备海藻酸钙多孔膜,考察海藻酸钠的浓度和交联时间对多孔膜的形貌和吸水性能的影响。结果表明:冷冻干燥法制备的海藻酸钙多孔膜具有贯通、开放的多孔结构。在试验范围内,质量百分比浓度为2%的海藻酸钠经质量百分比浓度5%的氯化钙交联10min得到的多孔膜孔结构最为理想,对蒸馏水的吸水率高达1123%。The porous films of Ca-alginate were produced by freeze-drying method successfully..Different parameters, such as Na-alginate concentrations and cross-linked time were studied. The pore size and mieromorphology were investigated by scanning electron microscopy （SEM）. The water absorbency were explored to confirm the applicability of the porous films as a wound dressing material. Results show that the optimum film is formed when 2% Na-alginate cross-linked for 10min by 5% Calcium. The film possesses uniformly interconnected pore structure and its absorbency up to 1 123% for distilled water.

关 键 词：海藻酸钙 冷冻干燥 多孔膜 吸水性能 

分 类 号：TQ432.74[化学工程]