以醋酸纤维素(CA)为膜阻隔层,聚羟基丁酸/戊酸酯共聚物(PHBV)作为膜支撑层,利用静电纺丝法制备出复合膜.研究了醋酸纤维素质量分数、溶剂配比、电压,以及CA与PHBV复合比(体积比)对纤维形态及复合膜性能的影响,并通过扫描电镜表征了CA纤维膜的表面形貌.研究结果表明,当CA的质量分数为12％,溶剂丙酮与N,N-二甲基乙酰胺(DMAc)体积比为1/1,纺丝电压为14 kV时,CA纤维膜形态均匀,并呈现独特的双纤维直径交错结构.这种结构的膜材料有利于在提高水通量的同时,保持其较好的截留率.同时,当CA/PHBV的复合比为10/10时,复合膜的水通量能达到104数量级,截留率可以达到87％.
参考文献
| [1] | Chanchan Wang;Fenglin Yang;Hanmin Zhang .Fabrication of non-woven composite membrane by chitosan coating for resisting the adsorption of proteins and the adhesion of bacteria[J].Separation and Purification Technology,2010(3):358-365. |
| [2] | Kulpinski P .Cellulose nanofibers prepared by the N-methylmorpholine-N-oxide method[J].Journal of Applied Polymer Science,2005(4):1855-1859. |
| [3] | Seong Ok Han;Ji Ho Youk;Kyung Dan Min;Yun Ok Kang;Won Ho Park .Electrospinning of cellulose acetate nanofibers using a mixed solvent of acetic acid/water: Effects of solvent composition on the fiber diameter[J].Materials Letters,2008(4/5):759-762. |
| [4] | Son WK.;Youk JH.;Lee TS.;Park WH. .Electrospinning of ultrafine cellulose acetate fibers: Studies of a new solvent system and deacetylation of ultrafine cellulose acetate fibers[J].Journal of Polymer Science, Part B. Polymer Physics,2004(1):5-11. |
| [5] | Mazalevska, O.;Struszczyk, M.H.;Krucinska, I. .Design of vascular prostheses by melt electrospinning - Structural characterizations[J].Journal of Applied Polymer Science,2013(2):779-792. |
| [6] | Olsson, C.;Westman, G. .Wet spinning of cellulose from ionic liquid solutions-viscometry and mechanical performance[J].Journal of Applied Polymer Science,2013(6):4542-4548. |
| [7] | Ye Tian;Min Wu;Ruigang Liu .Electrospun membrane of cellulose acetate for heavy metal ion adsorption in water treatment[J].Carbohydrate Polymers: Scientific and Technological Aspects of Industrially Important Polysaccharides,2011(2):743-748. |
| [8] | 赵晓燕,赵晓画,周大成,纪俊玲.PHBV/PVA复合膜的制备及其性能研究[J].应用化工,2013(07):1185-1188. |
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