以纳米二氧化钛(TiO2)和有机硅改性聚氨酯为原料,乙酸乙酯为分散剂,通过简单的喷涂法,制备了TiO2/PU微-纳米复合结构的超疏水涂层.涂层表面水的静态接触角为156°,滚动角为3°.经紫外光照射后,涂层表面变为超亲水表面,接触角为3°.用扫描电镜对涂层表面形貌进行了表征,研究了TiO2与PU的质量比、光照时间对涂层表面润湿性转变的影响.结果表明,涂层表面与荷叶表面有相似的微-蚋米结构,当TiO2与PU的质量比在3∶5至4∶5之间,光照时间为3～4 h时,涂层表面润湿性转变明显.
参考文献
| [1] | 石彦龙,冯晓娟,杨武,王永生.超疏水二氧化钛薄膜的制备及其经紫外光照射引发的超亲水性研究[J].无机化学学报,2010(12):2209-2214. |
| [2] | Teisala, H.;Tuominen, M.;Stepien, M.;Haapanen, J.;M?kel?, J.M.;Saarinen, J.J.;Toivakka, M.;Kuusipalo, J. .Wettability conversion on the liquid flame spray generated superhydrophobic TiO_2 nanoparticle coating on paper and board by photocatalytic decomposition of spontaneously accumulated carbonaceous overlayer[J].Cellulose,2013(1):391-408. |
| [3] | F. Arianpour;M.Farzaneh;S.A. Kulinich .Hydrophobic and ice-retarding properties of doped silicone rubber coatings[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2013(Jan.15):546-552. |
| [4] | Xia Zhang;Yonggang Guo;Zhijun Zhang;Pingyu Zhang .Self-cleaning superhydrophobic surface based on titanium dioxide nanowires combined with polydimethylsiloxane[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2013(Nov.1):319-323. |
| [5] | Yuekun Lai;Yuxin Tang;Jiaojiao Gong .Transparent superhydrophobic/superhydrophilic TiO2-based coatings for self-cleaning and anti-fogging[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2012(15):7420-7426. |
| [6] | Qian Feng Xu;Yang Liu;Fang-Ju Lin .Superhydrophobic TiO2-Polymer Nanocomposite Surface with UV-Induced Reversible Wettability and Self-Cleaning Properties[J].ACS applied materials & interfaces,2013(18):8915-8924. |
| [7] | Yuanyi Wang;Jian Xue;Qingjun Wang .Verification of Icephobic/Anti-icing Properties of a Superhydrophobic Surface[J].ACS applied materials & interfaces,2013(8):3370-3381. |
| [8] | 喻华兵,汪存东,李瑞丰.仿生超疏水二氧化硅/聚氨酯复合涂层的制备及性能[J].高分子材料科学与工程,2014(01):136-140. |
| [9] | 方艳芬,黄应平,陈和春,罗光富,刘香玲,刘立明.二氧化钛光催化体系中的羟基自由基的测定[J].分析化学,2006(z1):83-86. |
| [10] | Kim, K.-D.;Seo, H.O.;Sim, C.W.;Jeong, M.-G.;Kim, Y.D.;Lim, D.C. .Preparation of highly stable superhydrophobic TiO_2 surfaces with completely suppressed photocatalytic activity[J].Progress in Organic Coatings: An International Review Journal,2013(4):596-600. |
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%