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| Effect of Water Content on the Structure and Separation Performance ofRegenerated Cellulose Membrane |
| Received:November 11, 2019 |
| DOI：10.11981/j.issn.1000-6842.2020.02.29 |
| Key Words:water content;regenerated cellulose membrane;structure;performance |
| Fund Project:福建农林大学科技创新发展基金（CXZX2018003）；国家自然科学基金面上项目（31971612）；福建省自然科学基金青年创新（2019J05044）；创新创业教育改革轻化工程（111ZX1601）；福建省自然科学基金（2017J01570）。 |
| Author Name | Affiliation | Postcode | | WANG Dong | College of Materials Engineering，Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350108 | 350108 | | YUAN Hongmei | College of Materials Engineering，Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350108 | 350108 | | CHENG Yutong | College of Materials Engineering，Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350108 | 350108 | | ZHANG Hui | College of Materials Engineering，Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350108 | 350108 | | CHEN Lihui | College of Materials Engineering，Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350108 | 350108 | | HUANG Liulian | College of Materials Engineering，Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350108 | 350108 | | LIN Shan | College of Materials Engineering，Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350108 | 350108 |
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| Abstract: |
| Bamboo cellulose was dissolved by N-methylmorpholine-N-oxide (NMMO) and regenerated cellulose membrane (RCM) was prepared by immersion precipitation inversion method (Loeb-Sourirajan (L-S) phase inversion method). The structure and properties of RCM with different water content were investigated. The results showed that the finger-like pores in the RCM shrank, the average pore size decreased and the membrane structure tended to be uniform and dense along with the decreasing of the water content. Thus, the transmittance, mechanical properties and the rejection rate of bovine serum protein were improved significantly. The transmittance of the RCM was 92.8%, tensile strength was 1.46 MPa, membrane flux was 19.4 L/（m2·h) and rejection rate of bovine serum protein was 96.2% when its water content was 50%. |
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