连续式平板刮膜机的制备及应用研究
作者:余常友1,王建明2,宋宏臣2,杜如虚2,胡小芳1
单位: 1. 华南理工大学,机械与汽车工程学院,广州 510641 ;
关键词: 平板刮膜机;聚偏氟乙烯;高性能;超滤膜
出版年,卷(期):页码: 2014,34(5):102-108

摘要:
应用非溶剂致相法,通过自主设计研发的平板刮膜机制备聚偏氟乙烯(PVDF)成品膜。为提高PVDF超滤膜的综合性能,本研究以聚乙二醇(PEG)为成孔剂,以二氧化钛(TiO2)为添加剂,系统研究了PVDF固含量、成孔剂种类和含量以及TiO2纳米颗粒对PVDF超滤膜的微观形态以及通量和截留率的影响。结果表明,当PVDF固含量为22wt.%,PEG-6000含量为17.5wt.%,并且添加0.5wt.%TiO2所制备的成品膜具有较高的综合性能,其纯水通量可达1030L/(m^2?h?bar),对胃蛋白酶的截留率可达76%。
With Non-solvent induced phase method, poly (vinylidene fluoride) (PVDF) membranes were made by self-designed Flat Membrane Casting Equipment.In order to improve the comprehensive performance of the PVDF ultrafiltration membranes, this research used polyethylene glycol and titanium dioxide nanoparticles as additive, and studied the microstructure morphology, flux and pepsin resistance of PVDF ultrafiltration membranes with different doses of PVDF, PEG and TiO2 as the modifier.According to the results, the excellent membrane can be get with 22wt. % PVDF, 17.5wt.% PEG-6000 and 0.5wt.% TiO2 nanoparticles as additive, which flux and pepsinresistance have reached 1030(L/m2•h•bar) and 76.0%.
余常友(1988-),男,湖北武汉人,硕士研究生,主要从事TiO2改性超滤膜制备技术研究;*通讯联系人:宋宏臣,副研究员,E-mail: hc.song@giat.ac.cn

参考文献:
[1]王倩,王铎,娄红瑞,等.新型聚醚砜超滤膜的制备与表征 [J].膜科学与技术,2008,28(6):9-13.
[2 ]陆晓峰,卞晓锴.超滤膜的改性及研究 [J].膜科学与技术,2003,23(4):97-102.
[ ]陆茵,胡少媚,顾熙棠,等.科研用平板刮膜机 [J].膜科学与技术,2002,22(2):54-56.
[ ]贠延滨,刘丽英,马润宇.聚偏氟乙烯膜的研究进展 [J].膜科学与技术,2003,23(2):57-61.
[ ]Abed MRM, Kumbharkar SC, Groth AM, et al.Ultrafiltration PVDF hollow fibre membranes with interconnected bicontinuous structures produced via a single-step phase inversion technique [J]. Journal of Membrane Science.2012, 407: 145-154.
[ ] Pezeshk N, Rana D, Narbaitz RM, et al. Novel modified PVDF ultrafiltration flat-sheet membranes [J].Journal of Membrane Science.2012, 389: 280-286.
[ ] Wei Y,ChuHQ, DongBZ, et al. Effect of TiO2nanowire addition on PVDF ultrafiltration membrane performance [J]. Desalination, 2011, 272:90-97.
[ ]Shi FM, Ma YX, Ma J, et al. Preparation and characterization of PVDF/TiO2 hybrid membranes with different dosage of nano-TiO2 [J]. Journal of Membrane Science.2012, 389: 522-531.
[ ]Alaoui OT,Nguyen QT, Mbareck C, et al. Elaboration and study of poly(vinylidene fluoride)–anatase TiO2 composite membranes in photocatalytic degradation of dyes [J]. Applied Catalysis A:General.2009, 358: 13-20.
[ ]林华香,王绪绪,付贤智.TiO2表面羟基及其性质 [J].化学进展,2007,19(5):665-670.
[ ] 孙秀丽,李伟英,文晨. TiO2对PVDF超滤膜结构与性能的影响 [J]. 膜科学与技术,2011,31(4):17-21.
[ ] Liu F,Hashim NA, Liu YT, et al. Progress in the production and modification of PVDF membranes [J].Journal of Membrane Science.2011, 375: 1-27.
 

服务与反馈:
文章下载】【加入收藏

《膜科学与技术》编辑部 地址:北京市朝阳区北三环东路19号蓝星大厦 邮政编码:100029 电话:010-64426130/64433466 传真:010-80485372邮箱:mkxyjs@163.com

京公网安备11011302000819号