以质量分数为1.0％的魔芋葡甘聚糖水溶液为原料,质量分数为3.0％的氢氧化钠乙醇溶液为凝固浴,采用冷冻诱导相分离的方法制备了能够大量吸收水分而不溶解的海绵材料.研究结果表明,该海绵的表面和内部具有均匀、连通的孔隙结构,孔径大小为400 μm左右,孔隙率为93.87％,透气率为45.30％,对人造血浆的吸液量和保液量分别为25.98g/g和3.36 g/g,海绵的厚度为3 mm,表观密度为25.15 mg/cm3,拉伸强度为0.43 MPa.各项性能均优于或接近市售的海藻酸钙争粘胶非织造布创面敷料的水平,可用于治疗手术伤口、烧烫伤创面等各种类型的皮肤创伤.
参考文献
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