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以聚乳酸(PLA)为基膜材料,通过静电纺丝技术制备聚乳酸纤维基膜,Si-69为改性剂进行处理的硅橡胶作为涂敷层,制备聚乳酸/硅橡胶复合富氧膜.利用傅里叶红外光谱(FTIR)分析、X-射线衍射(XRD)分析对制备的复合膜的结构及两相间距进行分析.探究了不同Si-69用量对聚乳酸/硅橡胶复合膜力学性能及透氧性能的影响.结果表明,最佳交联剂Si-69用量为5%,此时交联效果最好,PLA、PDMS和PDMS、PDMS相间距明显减小,PLA/PDMS复合富氧膜断裂伸长率为125%,同时表现出更好的透气性能,其氮氧分离系数高达4.2,比硅橡胶富氧膜提高281%.

参考文献

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