Asymmetric reverse osmosis membranes of cellulose acetate (CA) in presence of chitosan nanoparticles as anti-biofouling material were prepared using the phase-inversion technique. The effect of some preparation parameters on the membrane properties, e.g. polymer composition, evaporation time and annealing temperature were studied. FTIR, TGA, SEM and Contact angle were carried out to characterize the produced membranes. The water flux and salt rejection of the membranes were assessed using 35 g/L Nacl in a dead end filtration system. The results revealed that the addition of chitosan nanoparticles increased the water flux from 6 L/m².h for blank (CA-0) to about 18 L/m².h for (CA-2) membrane containing 2% chitosan nanoparticles with increment of salt rejection from 89 to 94%. For membrane with proper salt rejection it should be annealed at 80 °C prior to filtration test. The static adhesion test indicated enhancement in fouling resistance of the membrane containing chitosan nanoparticles to bacterial attack.

使用相转化技术制备了壳聚糖纳米颗粒作为抗生物污垢材料的醋酸纤维素（CA）的不对称反渗透膜。研究了一些制备参数对膜性能的影响，例如聚合物组成，蒸发时间和退火温度。进行FTIR，TGA，SEM和接触角来表征所生产的膜。在死角过滤系统中使用35 g / L Nacl评估膜的水通量和盐分截留率。结果表明，壳聚糖纳米粒子的添加使空白（CA-0）的水通量从6 L / m ² .h增加到约18 L / m ²对于包含2％壳聚糖纳米颗粒的（CA-2）膜，.h的脱盐率从89％增加到94％。对于具有适当脱盐性能的膜，应在过滤测试前于80°C进行退火。静态粘附试验表明，含有壳聚糖纳米颗粒的膜对细菌侵袭的抗污性增强。