氧化石墨烯/聚偏二氟乙烯复合纤维过滤膜的制备及其过滤性能
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摘要
为得到高过滤效率、低过滤阻力的空气过滤材料,将氧化石墨烯掺入以聚偏二氟乙烯(PVDF)为基体,N,N-二甲基甲酰胺与丙酮为混合溶剂的纺丝液中,利用静电纺丝技术制备高性能氧化石墨烯/PVDF复合纤维过滤膜。研究不同聚偏二氟乙烯质量分数、氧化石墨烯质量分数、静电纺丝电压、接收距离等参数对复合纳米纤维过滤膜外观形态、过滤效率、过滤阻力的影响。结果表明:聚偏二氟乙烯质量分数为16%,氧化石墨烯质量分数为1. 0%,静电纺丝电压为29. 0 k V,接收距离为16 cm时,制备的复合纤维过滤膜形貌较好,纤维连续且均匀,过滤效率为99. 99%,过滤阻力为11. 53 Pa/μm,具有良好的过滤性能。
In order to obtain high-filtration efficiency low-filtration resistance materials for air filtration,high performance graphene oxide/polyinglidene fluoride( PVDF) composite filtration membrane were prepared by blending graphene oxide particles into spinning solution using N,N-dimethylformamide/acetone as mixed solvents and PVDF as matrix,and electrospinning. The effects of PVDF concentration,graphene oxide concentration,electrospinning voltage and receiving distance on the morphology,filtration efficiency and filter resistance properties of high performance graphene oxide filtration membrane were discussed. The results show that under the conditions of PVDF mass fraction of 16%,graphene oxide mass fraction of 1. 0%,electrospinning voltage of 29. 0 kV and receiving distance of 16 cm,the prepared composite filtration membrane has good morphology and continuous and uniform fiber. The filtration efficiency of the composite filtration membrane is 99. 99%,and the filtration resistance is 11. 53 Pa/μm.The composite membrane has good filtering performance.
In order to obtain high-filtration efficiency low-filtration resistance materials for air filtration,high performance graphene oxide/polyinglidene fluoride( PVDF) composite filtration membrane were prepared by blending graphene oxide particles into spinning solution using N,N-dimethylformamide/acetone as mixed solvents and PVDF as matrix,and electrospinning. The effects of PVDF concentration,graphene oxide concentration,electrospinning voltage and receiving distance on the morphology,filtration efficiency and filter resistance properties of high performance graphene oxide filtration membrane were discussed. The results show that under the conditions of PVDF mass fraction of 16%,graphene oxide mass fraction of 1. 0%,electrospinning voltage of 29. 0 kV and receiving distance of 16 cm,the prepared composite filtration membrane has good morphology and continuous and uniform fiber. The filtration efficiency of the composite filtration membrane is 99. 99%,and the filtration resistance is 11. 53 Pa/μm.The composite membrane has good filtering performance.
引文
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[2] ZINADINI S,ZINATIZADEH A A,RAHIMI M,et al.Preparation of a novel antifouling mixed matrix PES membrane by embedding graphene oxide nanoplates[J].Journal of Membrane Science,2014,453(1):292-301.
[3]张梅,贾紫璇,孙小娟,等.石墨烯纤维的湿法纺制及其性能[J].纺织学报,2018,39(1):1-5.ZHANG Mei, JIA Zixuan, SUN Xiaojuan,et al.Preparation and properties of wet-spinning graphene fibers[J]. Journal of Textile Research,2018,39(1):1-5.
[4]毕银萍,田恩玲,肖萍,等.静电纺丝法制备聚间苯二甲酰间苯二胺/氧化石墨烯复合纳米纤维膜及其性能研究[J].化工新型材料,2018,46(3):103-106.BI Yinping, TIAN Enling, XIAO Ping, et al.Preparation and characterization of PAIM/GO composite nanofibrous membrane by electrospinning[J]. New Chemical Materials,2018,46(3):103-106.
[5] DUAN X,LIEBER C M. General synthesis of compound semiconductor nano wires[J]. Advanced Material,2000,20(4):298-302.
[6] XU L,SONG H W,DONG B,et al. Preparation and bifunctional gas sensing properties of porous In2O3-Ce O2binary oxide nano tubes[J]. Inorganic Chemistry,2010,49(22):10590-10597.
[7] WANG Z,YAN F,PEI H,et al. Antibacterial and environmentally friendly chitosan/polyvinyl alcohol blend membranes for air filtration[J]. Carbohydrate Polymers,2018,198:241-248.
[8] GAO H,YANG Y,AKAMPUMUZA O,et al. A low filtration resistance three-dimensional composite membrane fabricated via free surface electrospinning for effective PM2. 5capture[J]. Environmental Science:Nano,2017,4(4):864-875.
[9] JING L, SHIM K, TOE C Y, et al. Electrospun polyacrylonitrile-ionic liquid nanofibers for superior PM2. 5capture capacity[J]. ACS Applied Materials&Interfaces,2016,8(11):7030-7036.
[10]李岩,仇天宝,周治南,等.静电纺丝纳米纤维的应用进展[J].材料导报,2011(17):84-88.LI Yan,QIU Tianbao,ZHOU Zhinan,et al. Application development of electro spun nanofibers[J]. Materials Review,2011(17):84-88.
[11]刘呈坤,贺海军,孙润军,等.静电纺制备多孔纳米纤维材料的研究进展[J].纺织学报,2017,38(3):168-173.LIU Chengkun, HE Haijun, SUN Runjun, et al.Research development for preparation of porous electrospun nanomaterials[J]. Journal of Textile Research,2017,38(3):168-173.
[12] LALIA B S,GUILLEN-BURRIEZA E,ARAFAT H A,et al. Fabrication and characterization of polyvinylidene fluoride-co-hexafluoropropylene(PVDF-HFP)electro spun membranes for direct contact membrane distillation[J]. Journal of Membrane Science,2013,428(2):104-115.
[13] FONG H,CHUN I,RENEKER D H. Beaded nanofibers formed during electrospinning[J]. Polymer,1999,40(16):4585-4592.
[14] LIU Y,GUO L. Homogeneous field intensity control during multi-needle electrospinning via finite element analysis and simulation[J]. Journal of Nanoscience and Nanotechnology,2013,13(2):843-847.
[15] LI D,FREY M W, JOO Y L. Characterization of nanofibrous membranes with capillary flow porometry[J]. Membrane Science,2006,286(12):104-114.
[16]王哲,潘志娟.静电纺聚乳酸纤维的孔隙结构及其空气过滤性能[J].纺织学报,2014,35(11):6-12.WANG Zhe,PAN Zhijuan. Porous structure and air filtration performance of electrospun PLA fibers[J].Journal of Textile Research,2014,35(11):6-12.
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