[1]王 磊,王 磊 王 欣,黄丹曦,等.PVA含量对PVDF/PVA改性膜抗污染性的影响研究[J].西安建筑科技大学学报:自然科学版,2015,47(02):272-275.[doi:DOI：10.15986/j.1006-7930.2015.02.022]
　WANG Lei,WANG Lei,WANG Xin,et al.Study of the effect of PVA content on the antifouling property of PVDF/PVA modified membrane by different organic matters[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2015,47(02):272-275.[doi:DOI：10.15986/j.1006-7930.2015.02.022]
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PVA含量对PVDF/PVA改性膜抗污染性的影响研究()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
47
期数:
2015年02期
页码:
272-275
栏目:
出版日期:
2015-04-28

文章信息/Info

Title:
Study of the effect of PVA content on the antifouling property of PVDF/PVA modified membrane by different organic matters
文章编号:
1006-7930(2015)02-0272-04
作者:
王 磊1;  王 磊1; 2 王 欣1;  黄丹曦1;  王旭东1
(1.西安建筑科技大学环境与市政工程学院,陕西 西安 710055;2. 筑博设计股份有限公司, 广东 深圳 518040)
Author(s):
WANG Lei1;  WANG Lei1; 2;  WANG Xin1;  HUANG Danxi1;  WANG Xudong1
(1.School of Environmental and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China 2. Zhubo Design Corporation, Shenzhen 518040, China)
关键词:
聚乙烯醇（PVA）; 膜污染; 粘附力; 有机物; 原子力显微镜（AFM）
Keywords:
polyvinyl alcohol (PVA);  membrane fouling;  adhesion force;  organic matter;  atomic force microscopy (AFM)
分类号:
TU991.24
DOI:
DOI：10.15986/j.1006-7930.2015.02.022
文献标志码:
A
摘要:
通过原子力显微镜（AFM）以及自制的PVDF胶体探针测量膜与不同有机物，即牛血清蛋白（BSA）、腐殖酸（HA）以及海藻酸钠（SA）之间的粘附力，从而研究不同PVA含量对PVDF/PVA改性膜抗污染性的影响．研究发现，随着PVA含量的增加，BSA以及HA污染膜的初期通量衰减幅度都呈先减小后增大趋势，而相应的通量恢复幅度都呈先增大后减小趋势．由于PVA的水合作用，改性膜-污染物之间的粘附力随着PVA含量的增加都呈减小趋势，因而其粘附力变化与相应污染膜的初期通量衰减幅度以及通量恢复率之间并不呈正相关性；而随着PVA含量的增加，SA污染膜的通量衰减幅度与通量恢复率都呈增大趋势，而改性膜-SA之间的粘附力呈减小趋势，与SA污染膜的通量衰减幅度以及通量恢复率之间呈良好的相关性．
Abstract:
To determine the effect of PVA content on the antifouling property of PVDF/PVA modified membrane by different organic matters, atomic force microscopy (AFM) combined with self-made PVDF colloidal probe was applied to measure the adhesion force between modified ultrafiltration membrane and different organic matters such as bovine serum albumin (BSA), humic acid (HA) and sodium alginate (SA) . The results indicate that with the increase of PVA content , there was a transition from decrease to increase for the permeate flux decline extent of BSA, SA-fouled membrane in the initial filtration stage but a transition from increase to decrease for corresponding flux recovered rate of BSA- and HA-fouled membranes after cleaning. Due to the hydration effect of PVA, the adhesion forces of modified membrane-BSA and -HA decreased as PVA content increased, which displayed no correlation with corresponding flux decline trends and flux recovered rates during fouling experiments, respectively. As the PVA content increased, both of the permeate flux decline extent in the initial filtration stage and flux recovered rate of SA-fouled membrane increased, but the modified membrane-SA adhesion force decreased as the PVA content increased, displaying good correlation with corresponding flux decline trend and flux recovered rate during fouling experiments

参考文献/References:

参考文献       References
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备注/Memo

备注/Memo:
收稿日期：2014-05-13； 修改稿日期：2015-04-14
基金项目：国家自然科学基金项目（51178378，51278408）收稿日期：2014-05-13； 修改稿日期：2015-04-14
作者简介：王磊 (1971-)，男，工学博士, 教授, 从事水的膜处理理论与技术研究．E-mail：wl0178@126.com274 西 安 建 筑 科 技 大 学（自然科学版） 第47卷 王磊，等：PVA含量对PVDF/PVA改性膜抗污染性的影响研究
更新日期/Last Update: 2015-09-25