利用喷涂沉淀法对聚偏氟乙烯(PVDF)膜进行表面改性,考察了喷涂液中纳米粒子(NP)的浓度和纳米粒子与胶粘剂(PDMS)的质量比对聚偏氟乙烯改性膜性能的影响.测定了改性前后聚偏氟乙烯膜的表面接触角以及膜的结构变化,并研究了膜的抗润湿和抗污染性能.结果表明,当喷涂液中纳米粒子的质量浓度为1％,纳米粒子与胶粘剂的质量比为4:5时,膜表面接触角从102°提高到156°.在直接接触式膜蒸馏实验中,改性膜的抗润湿性能和抗污染性能均较改性前有较大的提高.
参考文献
| [1] | El-Bourawi MS;Ding Z;Ma R;Khayet M .A framework for better understanding membrane distillation separation process[J].Journal of Membrane Science,2006(1/2):4-29. |
| [2] | Lawson K W;Lloyd D R .Membrane distillation[J].Journal of Membrane Science,1997,124(01):1-25. |
| [3] | Alklaibi A M;Lior N .Membrane-distillation desalination:status and potential[J].DESALINATION,2004,171(02):111-131. |
| [4] | Dongliang Wang;K. Li;WK. Teo .Porous PVDF asymmetric hollow fiber membranes prepared with the use of small molecular additives[J].Journal of Membrane Science,2000(1/2):13-23. |
| [5] | Zhenyu Song;Minghao Xing;Jing Zhang.Determination of phase diagram of a ternary PVDF/y-BL/DOP system in TIPS process and its application in preparing hollow fiber membranes for membrane distillation[J].Separation and Purification Technology,2012:221-230. |
| [6] | Yan L L;Wang Ke;Ye Lin .Super hydrophobic property of PVDF/CaCO3 nanocomposite coatings[J].Journal of Materials Science Letters,2003,22(23):1713-1717. |
| [7] | Zheng Z R;Gu Z Y;Huo R T et al.Superhydropho bic poly (vinylidene fluoride) film fabricated by alkali treatment enhancing chemical bath deposition[J].Applied Surface Sinence,2010,256(07):2061-2065. |
| [8] | Minghao Gu;Jun Zhang;Xiaolin Wang;Haijun Tao;Litian Ge .Formation of poly(vinylidene fluoride)(PVDF)membranes via thermally induced phase separation[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2006(1/3):160-167. |
| [9] | Lakshmi, R.V.;Bharathidasan, T.;Bera, P.;Basu, B.J. .Fabrication of superhydrophobic and oleophobic sol-gel nanocomposite coating[J].Surface & Coatings Technology,2012(19/20):3888-3894. |
| [10] | Surapit Srisurichan;Ratana Jiraratananon;A.G.Fane .Humic acid fouling in the membrane distillation process[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2005(1):63-72. |
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%