膜科学与技术

Position：Home >> Abstract

Research on the method of highly hydrophobic surface of polyvinylidene fluoridehollow fiber membrane

Authors： ZHANG Ruyi,LV Xiaolong*,WANG Yang,WU Chunrui,CHEN Huayan,JIA Yue,WANG Xuan,GAO Qijun

Units： State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Institution of Biological and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China)

KeyWords： polyvinylidene fluoride; phase conversion;hydrophobic modification; contact angle; hydrophobic membrane

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2015,35(5):13-17

Abstract：

Dilute solution phase inversion method was used in this paper to prepare nano-size particlesof polyvinylidene fluoride(PVDF), which were then coated on the surface of PVDF hollow fiber membrane to form a highly hydrophobic surface ofPVDF membraneby ultrafiltration.The effects of the composition of the coagulation bath, the temperature ofthe coagulationbath and other conditions of the dilute solution phase separation on the hydrophobicity of modified PVDF membrane were investigated.Theresults showed thatthe surface with a micro and nano structures could be constructed on the support membrane by ultrafiltrating the nano-size particles prepared withthe dilute solution phase inversion method and its property was affected greatly by the composition of the coagulation bath, and when the coagulation bathcomposition was 60% DMAc aqueous solution,the prepared particles had the best nanostructure, the contact angle of hydrophobic membrane prepared with these particles was highest, reaching 144.6 °which was muchhigher than the 80 °contact angle of the support membrane; the gaspermeability coefficientand the water permeability pressure ofthehydrophobic membrane were also affected by the coagulation bath composition, thewaterpermeable pressure increased from 0.24 MPa to 0.28 MPa; the composition of the coagulation bath had noobvious effect on the pore size of the hydrophobic membrane; The contact anglesof the hydrophobic membraneswere an increasing trendwiththe coagulationtemperatureincrease, which were made from the particles prepared with different coagulation temperature.

Funds：

国家自然科学基金项目（21176188，21106100）

AuthorIntro：

张如意（1988-），男，河北衡水人，硕士，从事膜材料研究.*通讯作者，E-mail：luxiaolong@263.net

Reference：

[1] Shirtcliffe N J, McHale G, Atherton S, et al. An introduction to superhydrophobicity [J]. Advances in Colloid and Interface Science, 2010, 161:124-138.
[2] Wang S, Li Y P, Fei X L, et al. Preparation of a durable superhydrophobic membrane by electrospinning poly(vinylidene fluoride) (PVDF) mixed with epoxy–siloxane modified SiO2 nanoparticles: A possible route to superhydrophobic surfaces with low water sliding angle and high water contact angle[J]. Journal of Colloid and Interface Science, 2011, 359:380–388.
[3] 谢永元, 周勇亮, 俞小眷, 等. 以砂纸为模板制作聚合物超疏水表面[J]. 高等化学学报, 2007, 28(8):1577-1580.
[4] Huang W H, Lin C S. Robust superhydrophobic transparent coatings fabricated by alow-temperature sol–gel process [J]. Applied Surface Science, 2014, 305:702-709.
[5] Sasan R, Iraj M, Rostam M,et al. One-step chemical vapor deposition and modification of silica nanoparticles atthe lowest possible temperature and superhydrophobic surface fabrication[J] . Chemical Engineering Journal, 2014, 252:11-16.
[6] Manas KS, Kausik B, Fuen H,et al. Design of an outstanding super-hydrophobic surface by electro-spinning[J]. Applied Surface Science, 2011, 257:7003-7009.
[7] Jisr R M, Rmaile H H, Schlenoff J B. Hydrophobic and Ultrahydrophobic Multilayer Thin Films from Perfluorinated Polyelectrolytes[J]. Angewandte ChemieInternational Edition. 2005, 44(5):782-785.
[8] 卓震. 聚偏二氟乙烯（PVDF）特性及其在过程工业中应用[J]. 腐蚀科学与防护技术, 2004, 16(2):118-120.
[9] Kang G D, Cao Y M. Application andmodification of poly(vinylidene fluoride)(PVDF) membranes–A review[J]. Journal of Membrane Science, 2014, 463:145-165.
[10] 林汉阳, 武春瑞, 吕晓龙. 聚偏氟乙烯膜的超疏水改性研究[J]. 膜科学与技术, 2010, 30(2):39-44.
[11] 王贤荣, 吕晓龙, 刘嘉铭, 等. 聚偏氟乙烯超疏水分离膜的制备[J]. 功能材料, 2013, 43(8):1056-1060.
[12] 刘嘉铭, 吕晓龙, 武春瑞, 等. 聚偏氟乙烯中空纤维膜表面疏水化制备方法研究[J]. 功能材料, 2013, 44(14):2101-2105.
[13]吕晓龙. 中空纤维多孔膜性能评价方法探讨[J]. 膜科学与技术, 2011, 31(2): 1-6.

Service：

【Download】【Collect】

《膜科学与技术》编辑部 Address: Bluestar building, 19 east beisanhuan road, chaoyang district, Beijing; 100029 Postal code; Telephone：010-80492417/010-80485372; Fax：010-80485372 ; Email：mkxyjs@163.com