采用冷冻干燥法制备海藻酸钙-聚乙烯醇半互穿网络多孔膜材料,利用扫描电镜进行了形貌表征,并考察了多孔复合膜的吸水、保水和溶胀性能.结果表明,实验制得的半互穿网络多孔膜具有开放、贯通的多孔结构,孔径范围在40～200μm之间.多孔膜的吸水率和保水率随PVA浓度增大先减小后增大,且生理盐水测试组中的数值偏高于蒸馏水测试组.多孔复合膜的溶胀速率较快,10min内可达溶胀平衡.
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