以纳米二氧化硅(SiO2)和不同有机硅含量改性的聚氨酯(PU)为原料,以乙酸乙酯为分散剂,采用简单的喷涂工艺,通过仿生的方法制备出与荷叶表面结构相似的SiO2/PU微-纳米复合涂层.用扫描电镜(SEM)对涂层表面进行了表征,研究了SiO2与PU的质量比以及有机硅含量对涂层表面结构及接触角的影响,并考察了涂层结构的稳定性,分析了涂层的形成机理和结构特点.结果表明,涂层表面具有与荷叶表面相似的微-纳米结构,SiO2与PU的质量比在4∶5至3∶5之间,有机硅质量分数大于15％时,涂层的水接触角为158°,滚动角为3°,具有超疏水特性,并且结构稳定,测试胶带剥离6次后,涂层仍具有超疏水特性.
参考文献
| [1] | Ko, J.H.;Kim, J.;Hong, J.;Yoo, Y.;Lee, Y.;Jin, T.L.;Park, H.C.;Goo, N.S.;Byun, D. .Micro/nanofabrication for a realistic beetle wing with a superhydrophobic surface[J].Bioinspiration & biomimetics,2012(1):016011-1-016011-1. |
| [2] | Sung-Gyu Park;Su Yeon Lee;Se Gyu Jang;Seung-Man Yang .Perfectly Hydrophobic Surfaces with Patterned Nanoneedles of Controllable Features[J].Langmuir: The ACS Journal of Surfaces and Colloids,2010(8):5295-5299. |
| [3] | LONG XIE;ZIQIANG SHAO;WENJUN WANG.Superhydrophobicity of CMCAB Fibrous Mats Produced by Electrospinning[J].Integrated Ferroelectrics,2012:55-61. |
| [4] | Accardo, A.;Gentile, F.;Mecarini, F.;De Angelis, F.;Burghammer, M.;Di Fabrizio, E.;Riekel, C. .In situ X-ray scattering studies of protein solution droplets drying on micro-and nanopatterned superhydrophobic PMMA surfaces[J].Langmuir: The ACS Journal of Surfaces and Colloids,2010(18):15057-15064. |
| [5] | Nair, B.P.;Pavithran, C. .Micropatterned surfaces through moisture-induced phase-separation of polystyrene-clay nanocomposite particles[J].Langmuir: The ACS Journal of Surfaces and Colloids,2010(15):12948-12952. |
| [6] | Bhushan, B.;Her, E.K. .Fabrication of superhydrophobic surfaces with high and low adhesion inspired from rose petal[J].Langmuir: The ACS Journal of Surfaces and Colloids,2010(11):8207-8217. |
| [7] | Taurino R;Fabbri E;Messori M;Pilati F;Pospiech D;Synytska A .Facile preparation of superhydrophobic coatings by sol-gel processes[J].Journal of Colloid and Interface Science,2008(1):149-156. |
| [8] | Bharat Bhushan;Yong Chae Jung .Natural and biomimetic artificial surfaces for superhydrophobicity, self-cleaning, low adhesion, and drag reduction[J].Progress in materials science,2011(1):1-108. |
| [9] | 雷海波,罗运军,李晓萌,葛震,王胜鹏,李卓昕,王宝义.有机硅改性聚氨酯的合成及微观结构与性能研究[J].北京理工大学学报,2011(10):1242-1246,1251. |
| [10] | 潘光,黄桥高,胡海豹,刘占一.微观结构对超疏水表面润湿性的影响[J].高分子材料科学与工程,2010(07):163-166. |
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%