海藻酸钠/魔芋葡甘露聚糖复合海绵材料的制备及性能  

Preparation and performance of sodium alginate/KGM sponge

作　　者：张珂[1] 隋淑英[1] 朱平 董朝红 刘杰 张晓云 ZHANG Ke;SUI Shuying;ZHU Ping;DONG Chaohong;LIU Jie;ZHANG Xiaoyun(College of Textile & Clothing,Qingdao University,Qingdao 266071,Shandong,China;Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles of Shandong Province,Qingdao 266071,Shandong,China;Growing Base for State Key Laboratory of New Fiber Materials and Modern Textile,Qingdao 266071,Shandong,China)

机构地区：[1]青岛大学纺织服装学院,山东青岛266071 [2]山东省海洋生物质纤维材料及纺织品协同创新中心,山东青岛266071 [3]纤维新材料与现代纺织国家重点实验室培育基地,山东青岛266071

出　　处：《化工进展》2017年第11期4176-4181,共6页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金项目(5107312)

摘　　要：采用冷冻干燥法,利用海藻酸钠(SA)和魔芋葡甘露聚糖(KGM)共混溶液,制备了一种多糖类复合海绵材料,测定了不同配比中复合海绵材料的孔隙率、吸湿保湿性及力学性能,讨论了甘油的添加量对复合海绵材料柔软性及透气性的影响,并用红外光谱(FTIR)、扫描电镜(SEM)对复合海绵材料的结构进行了表征。研究结果表明,制备的复合海绵材料孔径为100~200μm,气孔为圆形或扁长形,具有良好的连通性和均匀性;SA和KGM通过物理共混的方式共存,并没有发生化学反应。SA和KGM的最佳质量分数比为2.0∶0.9,甘油的最佳添加量为4%,此时制备的复合海绵材料具有良好的透气性、吸湿保湿性和较好的力学性能,同时保持了天然多糖优良的生物相容性能,在生物医用材料领域具有潜在的应用价值。A novel polysaccharide sponge was prepared from mixed aqueous solution of sodium alginate(SA)and konjac glucomannan(KGM)using the freeze-drying method.The porosity,moisture absorption and mechanical properties of the composite sponge material with different proportions were determined in this paper.The effects of the addition of glycerol on the softness and permeability of the composite sponge were discussed as well.The structure of composite sponge material was characterized by Fourier transform infrared spectroscopy(FTIR)and scanning electron microscopy(SEM).The result showed that the pore diameters were between100-200μm,and the pores were with good connectivity and homogeneity and round or elliptical in shape.SA and KGM coexisted by physical blending and no chemical reaction occurred.The optimum ratio of SA and KGM was2.0∶0.9,and the best addition amount of glycerol was4%.The sponge prepared under such conditions showed excellent biological compatibility of natural polysaccharide.In addition,the porosity,moisture absorption,moisture retention and mechanical properties of sponge are also very good,which renders it great potential in the area of biological materials and medical materials.

关 键 词：海藻酸钠 魔芋葡甘露聚糖 海绵 制备 力学性能 

分 类 号：TS190[轻工技术与工程—纺织化学与染整工程]