分别采用等离子体及乙醇浸润法对微滤膜进行预处理以改善聚多巴胺对聚丙烯微滤膜表面及孔道的改性效果,并对比了两种方法对聚多巴胺沉积量、膜纯水通量及表面形貌的影响.沉积密度和水通量测试表明,相对于等离子体法,乙醇预浸润法可以更好地改善聚多巴胺在微孔膜内的沉积行为.表面衰减全反射红外(ATR/FT-IR)、X射线光电子能谱(XPS)和场发射扫描电镜(FESEM)结果证实聚多巴胺可有效改性乙醇预浸润膜.能量色散X射线光谱(EDX)分析显示聚多巴胺完整且均匀地分布于膜孔道中.改性膜在为期27天的测试中表现出了较好的稳定性.此外,动态蛋白过滤实验表明,改性后膜的抗污染性能得到显著提升.
参考文献
| [1] | Haeshin Lee;Shara M. Dellatore;William M. Miller;Phillip B. Messersmith .Mussel-Inspired Surface Chemistry for Multifunctional Coatings[J].Science,2007(5849):426-430. |
| [2] | 徐又一,蒋金泓,朱利平,朱宝库.多巴胺的自聚-附着行为与膜表面功能化[J].膜科学与技术,2011(03):32-38. |
| [3] | Martin E. Lynge;Rebecca van der Westen;Almar Postma .Polydopamine-a nature-inspired polymer coating for biomedical science[J].Nanoscale,2011(12):4916-4928. |
| [4] | Qian Ye;Feng Zhou;Weimin Liu .Bioinspired catecholic chemistry for surface modification[J].Chemical Society Reviews,2011(7):4244-4258. |
| [5] | Haeshin Lee;Norbert F. Scherer;Phillip B. Messersmith .Single-molecule mechanics of mussel adhesion[J].Proceedings of the National Academy of Sciences of the United States of America,2006(35):12999-13003. |
| [6] | Lu Q Y;Danner E;Waite J H et al.Adhesion of mussel foot proteins to different substrate surface[J].JOURNAL OF THE ROYAL SOCIETY INTERFACE,2012,79(10):6651-6658. |
| [7] | 陈刚,林亚凯,王晓琳,张军.聚合物微滤膜亲水化研究进展[J].水处理技术,2007(02):4-8. |
| [8] | Wan, LS;Liu, ZM;Xu, ZK .Surface engineering of macroporous polypropylene membranes[J].Soft matter,2009(9):1775-1785. |
| [9] | Tu CY;Liu YL;Lee KR;Lai JY .Surface grafting polymerization and modification on poly (tetrafluoroethylene) films by means of ozone treatment[J].Polymer: The International Journal for the Science and Technology of Polymers,2005(18):6976-6985. |
| [10] | Xi Z Y;Xu Y Y;Zhu L P et al.A facile method of surface modification for hydrophobic polymer membranes based on the adhesive behavior of poly(DOPA) and poly(dopamine)[J].Journal of Membrane Science,2009,327:244-253. |
| [11] | Kasemset S;Lee A;Miller D J et al.Effect of polydopamine deposition conditions on fouling resistance,physical properties,and permeation properties of reverse osmosis membranes in oil/water separation[J].Journal of Membrane Science,2013,425-426:208-216. |
| [12] | McCloskey BD;Park H B;Ju H et al.A bioinspired fouling-resistant surface modification for water purification membranes[J].Journal of Membrane Science,2012,413-414:82-90. |
| [13] | McCloskey, B.D.;Park, H.B.;Ju, H.;Rowe, B.W.;Miller, D.J.;Chun, B.J.;Kin, K.;Freeman, B.D. .Influence of polydopamine deposition conditions on pure water flux and foulant adhesion resistance of reverse osmosis, ultrafiltration, and microfiltration membranes[J].Polymer: The International Journal for the Science and Technology of Polymers,2010(15):3472-3485. |
| [14] | Cheng C;Li S;Zhao W F et al.The hydrodynamic permeability and surface property of polyethersulfone ultrafiltration membranes with mussel-inspired polydopamine coatings[J].Journal of Membrane Science,2012,417-418:228-236. |
| [15] | Pan F S;Jia H P;Qiao S Z et al.Bioinspired fabrication of high performance composite membranes with ultrathin defect-free skin layer[J].Journal of Membrane Science,2009,341:279-285. |
| [16] | Molisak-Tolwinska H.;Figaszewski Z.;Wencel A. .The effect of hydrophilization of polypropylene membranes with alcohols on their transport properties[J].Journal of Macromolecular Science. Pure and Applied Chemistry,1998(5):857-865. |
| [17] | Yun-Feng Yang;Ling-Shu Wan;Zhi-Kang Xu .Surface Engineering of Microporous Polypropylene Membrane for Antifouling: A Mini-Review[J].Journal of Adhesion Science and Technology: The International Journal of Theoredtical and Basic Aspects of Adhesion Science and Its Applications in All Areas of Technology,2011(1/3):245-260. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%