通过流延成膜法制备一系列纤维素/大豆分离蛋白复合膜材料,分别以10%醋酸溶液、5%醋酸和5%乙醇的混合溶液、75%乙醇溶液等3种水溶液及蒸馏水为贮存体系,通过力学性能测试、扫描电镜观察、紫外测试等方法研究了不同贮存条件对纤维素/大豆分离蛋白复合膜结构与性能的影响.结果表明,10%醋酸水溶液贮存纤维素/大豆分离蛋白复合膜30d能够较好地维持其力学性能和微观结构,可作为该复合膜较为适合的贮存体系. A series of cellulose / soy protein isolate composite membrane materials were prepared by casting and filming method. Three kinds of cellulose / soybean protein composite membrane materials were respectively prepared by using 10% acetic acid solution, 5% acetic acid and 5% ethanol mixed solution, 75% ethanol solution and distilled water as storage system , The effects of different storage conditions on the structure and properties of cellulose / soy protein isolate composite membranes were studied by means of mechanical properties test, scanning electron microscope observation and UV test.The results showed that cellulose / soy protein isolate composite membranes were stored in 10% acetic acid aqueous solution 30d can better maintain its mechanical properties and microstructure, as the composite membrane is more suitable storage system.