采用流延成型法制备明胶/聚乙烯醇(Gel/PVA)复合膜,并以乙二醛为交联剂通过溶液交联法制备乙二醛交联的Gel/PVA复合膜,采用红外光谱(FTIR)、X-射线衍射(XRD)、差示扫描量热(DSC)、热重(TG)等表征交联前后复合膜的结构与性能,研究了交联剂用量对Gel/PVA复合膜力学性能及溶解性能的影响.结果表明,随着乙二醛用量的增加,Gel/PVA复合膜的拉伸强度呈先增加后逐渐降低的趋势,而断裂伸长率和溶解率则逐渐降低；乙二醛交联可提高复合膜的熔融温度及热稳定性；乙二醛交联显著影响Gel/PVA复合膜中分子间的氢键和化学结构.
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