舰船舱底油污水深度处理关乎航行安全和海洋生态环境，但作为处理核心的传统膜材料存在抗污染能力差、稳定性差的瓶颈问题，因而开发高性能油水分离膜材料具有重大的科学价值和战略意义。受仿生自清洁和界面强化的启发，本项目拟以多孔聚丙烯无纺布为基膜，以2D柔性氧化石墨烯(GO)、线性羧甲基纤维素、1D刚性纤维素纳米晶为组装单元，氟碳表面活性剂为改性剂，设计多重界面作用和基元材料协同效应，仿生构筑超疏油/超亲水GO/纤维素基非均相仿贝壳复合膜，研究非均相仿贝壳微界面的自组装机理和调控规律，阐明超疏油/超亲水性膜表面的形成机理，探究界面协同作用、微观拓扑结构与膜表界面稳定性的关系，揭示超疏油/超亲水复合膜的表面化学结构、微观拓扑结构与膜分离性能和抗污自清洁性的构效关系，解释膜表面抗污自清洁机制与膜分离乳化油的机理，建立舰船舱底乳化油深度处理的膜分离方法，为仿生分离膜材料在油水分离领域应用奠定理论和实践基础。

The advanced treatment of oil wastewater in ship bilge involves navigation safety and marine ecological environment, however, traditional membrane materials as the treatment core suffer from the bottleneck problem such as poor anti-pollution performance and low stability. Thus, the development of high-performance oil-water separation membrane material has great scientific value and strategic significance. Inspired by biomimetic self-clean and interface strengthen, superoleophobic and superhydrophilic GO/cellulose-based chemical heterogeneous nacre-like composite membrane will be designed and constructed based on the design multiple interface interaction and synergistic effect of elementary materials, using porous polypropylene non-woven fabric as basement membrane, 2D flexible graphene oxide (GO) nanosheet, linear carboxymethyl cellulose and 1D rigid cellulose nanocrystals as assembly unit, fluorocarbon surfactant as modifier, respectively. The self-assembly mechanism and regulation law of heterogeneous nacre-like micro-interface will be studied. The formation mechanism of superoleophobic and superhydrophilic membrane surface will be clarified. The relationship between interface synergy, micro topological structure and membrane surface stability will be explored. The structure-activity relationship between the surface chemical structure, micro topological structure and membrane separation performance as well as antifouling self-cleaning for GO/cellulose-based heterogeneous nacre-like composite membrane will be revealed. The anti-fouling and self-cleaning mechanism of membrane surface and the mechanism of membrane separation of emulsified oil will be explained. A membrane separation method for the deep treatment of emulsified oil in ship bilge will be established, which will lay a theoretical and practical foundation for biomimetic separation membrane materials to apply in the field of oil-water separation.