聚芳硫醚PArSOX膜可控分相、多级孔构筑及选择性分离机理研究

As the development of industry, the problem of separation in some harsh environments is highlight, and the corrosive waste liquid treatment has become a bottleneck for sustainable development, especially in the fields of medicine, petrochemical, smelting and so on. The application of polyphenylene sulfide (PPS) and its modified materials in the field of membrane separation is an effective means of extreme environmental treatment. As for the hard dissolving, high viscous flow activation energy and difficult regulation of membrane formation process of PPS, we will synthesize the polyaromatic sulfide (PArSOx) materials, and the interaction parameters between PArSOx and diluent will be regulated by π-π interaction and hydrogen bond, which can significantly improve the PArSOx solubility. The controlled phase separation will be carried out with polysulfone or polyethersulfone as membrane structural regulators in presence of dibutyl sebacate or benzoin. PArSOx membrane formation process will be regulated by porous materials, and the process of membrane channel formation between object materials and subjects PArSOx will be investigated. The modified PArSOx membrane will be prepared through the interfacial polymerization and shipbuilding in bottles, and the cooperative mechanism between the functional layer and the support layer will be studied. Based on the simulation of "spider webs", we will investigate the thermal bonding process of superfine fiber and weave a web at membrane openings to prepare the composite membrane. We will prepare the corrosion resistant PArSOx membrane materials with the low resistance, high interception and good flux. The relationship between membrane structure and membrane properties will be investigated, and the selective filtration mechanism of organic molecules and metal ions and so on in corrosive environment was revealed.

随着过程工业的发展，一些苛刻环境下的分离问题凸显，特别是医药、石化、冶炼等领域的腐蚀性废液处理已成为行业持续发展的瓶颈。将聚苯硫醚（PPS）及其改性材料应用在膜分离领域，是极端环境治理的有效手段。针对PPS难溶，粘流活化能高、成膜过程难以调控等，本课题制备聚芳硫醚（PArSOx）新材料，利用π-π作用和氢键作用等调控PArSOx与稀释剂之间的相互作用参数，改善其溶解性能。以聚砜和聚醚砜等为膜结构调控剂，在安息香或癸二酸二丁酯等参与下，引导可控分相。利用多孔材料调控孔道结构，研究客体多孔材料和主体PArSOx膜之间孔道构建过程。通过界面聚合和瓶中造船等技术改性PArSOx膜，研究功能层和支撑层之间的协同机制。模拟“蜘蛛织网”，探索在膜孔口溶喷超细纤维热粘合成网制膜途径。制备低阻、高截留和高通量的PArSOx膜，研究膜结构和膜性能的关系，揭示有机分子和金属离子等在腐蚀性环境中的选择性过滤机理。

随着过程工业的发展，一些苛刻环境下的分离问题凸显，特别是医药、石化、冶炼等领域的腐蚀性废液处理已成为行业持续发展的瓶颈。将聚苯硫醚（PPS）及其改性材料应用在膜分离领域，是极端环境治理的有效手段。针对PPS难溶，粘流活化能高、成膜过程难以调控等，本课题制备聚芳硫醚（PArSOx）新材料，研究了聚苯硫醚氧化改性技术，并研究了PArSOx新材料的结构、性能和应用等。优化了PArSOx与稀释剂之间的相互作用参数，改善了PArSOx(含PPS)的溶解性能，调控了铸膜液成膜性。筛选了PArSOx或PPS膜结构调控剂，在二苯甲酮、安息香或癸二酸二丁酯等参与下，引导了聚合物可控分相。优化或筛选了多种新型多孔材料，并以多孔材料或纳米材料等调控成膜过程，研究了客体多孔材料和主体PPS膜之间孔道构建过程。通过界面聚合和孔道改性等技术改性PPS和PArSOx膜，研究了功能层和支撑层之间的协同过滤机制。研究了熔喷超细纤维成膜机制，并研究了熔（溶）喷超细纤维热粘合成网制膜途径，探索了纤维聚集体的组合方式，开发了纤维型碱性电解槽隔膜技术。制备了低阻、高截留和高通量的PPS复合膜，研究膜结构和膜性能的关系，揭示有机分子和金属离子等在腐蚀性环境中的选择性过滤机理。