热致相分离法制备用于湿电子化学品纯化的聚苯硫醚微滤膜  

Preparation of Polyphenylene Sulfide Microfiltration Membrane via TIPS for the Purification of Wet Chemicals

作　　者：曹俊俊 方传杰 朱利平[1] CAO Junjun;FANG Chuanjie;ZHU Liping(MOE Key Laboratory of Macromolecular Synthesis and Functionalization,Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]浙江大学高分子科学与工程学系,高分子合成与功能构造教育部重点实验室,杭州310027

出　　处：《功能高分子学报》2025年第1期42-50,共9页Journal of Functional Polymers

基　　金：浙江省“尖兵”“领雁”计划项目(2023C04036,2024C03134);国家自然科学基金(U21A20302,52373218);浙江省“万人计划”科技创新领军人才项目(2021R52027);中央高校基本科研业务费资助。

摘　　要：采用热致相分离(TIPS)法制备聚苯硫醚(PPS)微滤滤膜,通过改变冷却浴温度实现了膜结构调控,深入分析了冷却浴温度对膜结构与性能的影响,最终显著提高了膜的渗透通量。在20℃的水冷却浴下,所制备PPS膜的正己烷通量达909 L/(m^(2)·h·bar)(1 bar=0.1 MPa)。PPS微滤膜的耐溶剂性优异,对盐酸和N-甲基吡咯烷酮(NMP)14 d的耐溶剂试验表明,其对500 nm颗粒仍有95%以上的截留效果。The particle in wet chemicals is an important factor affecting the quality.The prevention and removal of particles are critical research topics.Packaging with clean materials is an effective but expensive way to ensure the quality of wet chemicals.Polyphenylene sulfide(PPS)stands out as a polymer material with exceptional resistance to high temperatures and various solvents.It is also a potential membrane material that meets the solvent and temperature resistance requirements for the separation and purification of various wet chemicals,particularly in harsh separation environments.The thermally induced phase separation(TIPS)method is employed in the fabrication of PPS membranes.Thanks to a reasonable formula and temperature control,the structures of PPS membranes are prepared through a simple process,which achieves a higher permeation flux eventually.The relationship between the structure and properties of the membranes is explored by changing the temperature of the cooling bath.The microstructure of the membranes varies with the temperature of cooling bath.In addition,a lower cooling temperature results in a higher flux.The membrane cooled in a 20℃water bath,reaches 909 L/(m^(2)·h·bar)(1 bar=0.1 MPa)for hexane flux.After immersing the membrane in hydrochloric acid and N-methylpyrrolidone(NMP)for 14 d,the PPS membrane shows great solvent resistance.The rejection of the membrane still approaches over 95%.Overall,this study highlights the potential application of polyphenylene sulfide membranes in wet chemicals,offering an economical and efficient way to removing particles in harsh environments.Eventually,it focuses on achieving the purification of wet electronic chemicals,solvent recovery,and reducing the costs of production.

关 键 词：膜分离技术 聚苯硫醚 热致相分离 耐溶剂性 湿电子化学品 

分 类 号：O633.3[理学—高分子化学] TQ028.5[理学—化学]