Preparation and Investigation of Super2Hydrophobic Nanoscale Interfacial Materials
Online published: 2005-01-15
Supported by
supported by the National Natural Science Foundation of China (20125102) and the State Key Project Fundamental Research (G1999064504)
制备并研究了几种超疏水性纳米界面材料，具体包括 :(1)以多孔氧化铝为模板，通过一种新的模板挤压法制备了聚丙烯腈纳米纤维，该纤维表面在没有任何低表面能物质修饰时即具有超疏水性，与水的接触角可高达 1 73 8°。(2)利用亲水性聚合物聚乙烯醇制备了具有超疏水性的表面，打破了传统上只有利用疏水材料才能得到超疏水性表面的局限性，扩大了制备材料的应用范围。研究表明，这种特殊的现象是由于聚乙烯醇分子在纳米结构表面发生重排，使得疏水基团向外，分子间氢键向内，从而导致整个体系的表面能降低引起的。(3)将聚丙烯腈纳米纤维通过典型的热解过程，得到了具有类石墨结构的纳米结构碳膜，该膜表面在广泛pH值范围内都具有超疏水的特征，在基因传输、无损失液体输送、微流体等方面具有更广阔的应用前景。(4)利用喷涂 干燥技术制备了一种新型的同时具有超疏水及超亲油性的油水分离网膜。研究表明，网膜表面特殊的微米与纳米尺寸相结合的粗糙结构导致这种特殊的性质，该网膜具有很高的油水分离效率，具有极其广阔的应用前景。
冯琳 , 江雷 . 超疏水性纳米界面材料的制备与研究[J]. 中国科学院大学学报, 2005 , 22(1) : 106 -109 . DOI: 10.7523/j.issn.2095-6134.2005.1.017
Various super-hydrophobic nanoscale interfacial materials have been prepared and investigated , including : the synthesis of super-hydrophobic surface from hydrophobic material without any fluorinated compounds modification ,the creation of super-hydrophobic surface from amphiphilic polymer , the formation of nanostructured carbon films in a wide range of pH values , and the fabrication of a novel coating mesh filmwith both super-hydrophobic and super-oleophilic properties for the separation of oil and water.
[1] Feng L , Li SH , Li YS , et al . Super2hydrophobic surfaces : from natural to artificial . Adv. Mater. ,2002 , 14 :1857～1860
[2] Feng L , Li SH , Li HJ , et al . Super2hydrophobic surface of aligned polyacrylonitrile nanofibers. Angew. Chem. Int . Ed. , 2002 ,41 :1221～1223
[3] Feng L , Song YL , Zhai J , et al . Creation of a super2hydrophobic surface from an amphiphilic polymer. Angew. Chem. Int . Ed. , 2003 ,42 :800～802
[4] Feng L , Yang ZL , Zhai J , et al . Super2hydrophobicity of nanostructured carbon films in a wide range of pH values. Angew. Chem. Int . Ed. ,2003 ,42 :4217～4220
[5] Feng L , Zhang Z, Mai Z, et al . A super2hydrophobic and super2oleophilic coating mesh film for the separation of oil and water. Angew. Chem.Int . Ed. , 2004 ,43 :2012～2014
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