中国造纸学报2025，Vol.40Issue(2)：78-87,10.DOI:10.11981/j.issn.1000-6842.2025.02.78
超高强度再生纤维素纳滤膜制备及其对溶剂回收性能的研究
Preparation of Super High-strength Regenerated Cellulose Nanofiltration Membrane and Its Solvent Recovery Performance
摘要
Abstract
To address the issues of low mechanical strength and non-biodegradability in traditional nanofiltration membranes,regenerated cel-lulose membranes(RCMs)were first prepared via the phase inversion process to serve as the support layer.Subsequently,a series of super-strength regenerated cellulose nanofiltration membranes(RC-NFs)were fabricated using interfacial polymerization for the recovery of ionic liquids(ILs).The recovery performance of RC-NFs for ILs was evaluated by optimizing the type of anti-solvent,analyzing the surface mor-phology,thermal stability,wettability,and mechanical strength of the RC-NFs,and adjusting interfacial polymerization conditions such as the mass fractions of piperazine(PIP)and 1,3,5-benzenetricarbonyl trichloride(TMC),as well as the polymerization time.The results indi-cated that the RC-NFs possessed hydrophilicity,high thermal stability,and excellent tensile mechanical strength(128 MPa).As the mass fractions of PIP and TMC,and the polymerization time increased,the water flux of RC-NFs gradually decreased,while the ILs rejection rate generally increased.Under the conditions of PIP mass fraction at 0.50%,TMC mass fraction at 0.30%,and polymerization time of 3 min,the prepared RC-NF-6 achieved a ILs rejection rate of 26.18%and a water flux of 4.30 L/(h·m2),exhibiting an optimal recovery perfor-mance for ILs.关键词
再生纤维素/纳滤膜/离子液体回收/超高强度/界面聚合Key words
regenerated cellulose/nanofiltration membrane/ionic liquid recovery/super high strength/interfacial polymerization分类
轻工业引用本文复制引用
郑文秋,马英翔,杨晓刚,王小宇,程春祖,张国炎,许凤..超高强度再生纤维素纳滤膜制备及其对溶剂回收性能的研究[J].中国造纸学报,2025,40(2):78-87,10.基金项目
国家重点研发计划(2023YFD2201903) （2023YFD2201903）
国家自然科学基金面上项目(22178028). （22178028）
