Biodegradable cellulose acetate (CA) membranes were prepared via phase inversion induced by immersion precipitation method. Acetic acid and deionized water were used as solvent and non‐solvent, respectively. The modifying effect of gelatin and zinc oxide (ZnO) nanoparticles additives was investigated on the membranes in terms of water flux, protein rejection percentage, and fouling ability during two hours of bovine serum albumin separation from aqueous solution. Specimens were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), tensile test, contact angle technique, and porosity measurement. The incorporation of gelatin and ZnO nanoparticles into the CA matrix increased the porosity coefficient and hydrophilicity. Moreover, gelatin improved the tensile properties of the membrane.

中文翻译：

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明胶和纳米氧化锌对醋酸纤维素水膜性能和性能的影响

通过浸没沉淀法诱导的相转化制备了可生物降解的醋酸纤维素膜。乙酸和去离子水分别用作溶剂和非溶剂。研究了明胶和氧化锌（ZnO）纳米粒子添加剂在牛血清白蛋白从水溶液中分离两个小时后的水通量，蛋白质截留率和结垢能力对膜的改性作用。通过扫描电子显微镜（SEM），傅立叶变换红外光谱（FTIR），拉伸试验，接触角技术和孔隙率测量来表征样品。将明胶和ZnO纳米颗粒掺入CA基质中可提高孔隙率系数和亲水性。此外，明胶改善了膜的拉伸性能。