采用静电纺丝技术制备聚乙烯醇/二氧化钛复合纳米纤维膜,利用戊二醛对复合纳米纤维膜进行改性.分析改性前后材料表面形貌、表面化学基团的变化及其耐水性和热性能.结果表明:复合纳米纤维表面粗糙度随二氧化钛含量的增大而增大.改性后纤维形貌保持不变,纤维间出现粘结,材料表面发生羟醛缩合反应,在1600cm-1处出现-C=C红外特征峰,复合纳米纤维膜耐水性显著提高,材料在190℃处的熔融峰消失.
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