|Table of Contents|

Structure Performance Changes of Hydrophobic Polypropylene Membrane in Solution Environment

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2009年06期
Page:
820-823
Research Field:
Publishing date:

Info

Title:
Structure Performance Changes of Hydrophobic Polypropylene Membrane in Solution Environment
Author(s):
LU Jian-gangCHEN Min-dongXU Jian-qiangSONG Yuan-yuan
School of Environmental Science and Engineering,Nanjing University of Information Scienceand Technology,Nanjing 210044,China
Keywords:
hydrophobic polypropylene membrane solutions membrane structure performance characterization membrane technology
PACS:
TQ325.14
DOI:
-
Abstract:
Structure changes of hydrophobic polypropylene membrane are investigated by dipping the hydrophobic polypropylene membrane into different types of solutions.Effects of monoethanolamine(MEA),glycinate(GLY),potassium hydroxide(KOH) and water(H2O) on the structure of hydrophobic polypropylene membrane are characterized by means of element analysis,mechanical intensity and penetration flux determinations.The results show that: the change of element H in the membrane components is the largest after the membrane dipped in the three solutions;the change trend of elements of the membrane components increases with the increase of solution concentrations;the effect order of the solutions from big to small on mechanical intensity of the membrane is MEA,GLY and KOH within the same dipping time.Effects of organic solutions on mechanical intensity are bigger than those of inorganic solutions.Penetration fluxes of the membrane increase after the hydrophobic polypropylene membrane are dipped in solutions.Among the effects on penetration flux,the effect of aqueous MEA on the penetration flux is the largest,and the effect of H2O on the penetration flux is unshown.

References:

[ 1] Atchariyawut S, FengC, WangR, et a.l Effect ofmem-brane structureonmass-transfer inthemembranegas-liq-uidcontacting processusingmicroporousPVDFhollowf-i bers[ J]. JMembr Sc,i 2006, 285(2): 272-281.
[ 2] Lu JG, Wang L J, SunXY, et a.l Absorption of CO 2 into aqueous solutions of methyldiethanolamine andactivatedmethyldiethanolamine froma gasmixture ina hollow fiber contactor[ J]. IndEng ChemRes, 2005, 44( 24): 9230-9238.
[ 3] Garcia-PayoMC, Izquierdo-GilMA, Fernandez-Pine-daC. Wetting study ofhydrophobicmembranesvia liq-uidentry pressure measurementswith aqueous alcohol solutions[ J]. JColloid Interface Sc,i 2000, 230( 2): 420-431.
[ 4] Zheng Q-S, YuY, Zhao Z-H. Effects of hydraulic pressure on the stability and transition of wetting modes of superhydrophobic surfaces[ J]. Langmuir, 2005, 21( 26): 12207-12212.
[ 5] 刘立洵, 李俊伟, 张志谦. 玻璃纤维/聚丙烯复合材料界面研究[ J]. 材料科学与工艺, 2000, 8( 2): 105 -107.
[ 6] 陆建刚, 王连军,刘晓东, 等. 湿润率对疏水性膜接触器传质性能的影响[ J]. 高等学校化学学报, 2005, 26( 5): 912-917.
[ 7] BarbeAM, HoganPA, JohnsonRA. Surfacemor-phology changes during initial usage of hydrophobic, microporouspolypropylene membranes[ J]. JMembr Sc,i 2000, 172( 2): 149-156.
[ 8] DindoreVY, BrilmanDWF, FeronPHM, et a.l Membrane-solvent selection for CO 2 removal using membrane gas-liquid contactors[ J]. JMembr Sc,i 2004, 235( 2): 99-109.
[ 9] 陆建刚,马骏, 王连军. 混合气中CO 2 的膜接触器分离过程[ J]. 南京理工大学学报(自然科学版), 2005, 29( 4): 491-194.

Memo

Memo:
-
Last Update: 2012-11-19