Design of multi-functional dual hole patterned carbon nanotube composites with superhydrophobicity and durability  

作　　者：Sung-Hoon Park Eun-Hyoung Cho Jinseung Sohn Paul Theilmann Kunmo Chu Sunghee Lee Yoonchul Sohn Dongouk Kim Byunghoon Kim 

机构地区：[1]Samsung Advanced Institute of Technology, Yong-in, 446-712, R. O. Korea [2]Department of Electrical Engineering, University of California, San Diego, La Jolla, California 92093, USA

出　　处：《Nano Research》2013年第6期389-398,共10页纳米研究（英文版）

摘　　要：Most current research on nanocomposites has focused on their bulk attributes, i.e., electrical, microwave, thermal, and mechanical properties. In practical applications, surface properties such as robustness against environmental contamination are critical design considerations if intrinsic properties are to be maintained. The aim of this research is to combine the bulk properties of nanocomposites with the superhydrophobic surface properties provided by imprinting techniques to create a single multi-functional system with enhanced bulk properties. We report the development of a highly conductive superhydrophobic nanotube composite, which is directly superimposed with a durable dual hole pattern through imprinting techniques. The dual hole pattern avoids the use of high slenderness ratio structures resulting in a surface which is robust against physical damage. Its stable superhydrophobic properties were characterized both theoretically and experimentally. By incorporating high aspect ratio carbon nanotubes （CNTs）, the dual patterned composites can also be effectively used for anti-icing and deicing applications where their superhydrophobic surface suppresses ice formation and their quick electric heating response at low voltage eliminates remaining frost. In addition, superior electromagnetic interference （EMI） shielding effectiveness （SE） was attained, with one of the highest values ever reported in the literature.关于 nanocomposites 的最当前的研究集中了于他们的体积属性，即，电，微波，热、机械的性质。在实际应用，如果内在的性质将被坚持说，象对环境污染的坚韧性那样的表面性质是批评设计考虑。这研究的目的是把 nanocomposites 的体积性质与 superhydrophobic 表面性质由印技术与提高的体积性质创造一个单个多功能的系统提供了相结合。我们报导高度传导性的 superhydrophobic nanotube 的发展合成，它直接通过印技术与一个持久的双洞模式被附加。双洞模式避免导致对物理损坏柔韧的表面的高苗条比率结构的使用。它的稳定的 superhydrophobic 性质理论上并且试验性地被描绘。由合并高方面比率碳 nanotubes (CNT ) ，双有图案的 composites 能有效地也为在低电压的形成和他们的快电的加热反应消除仍然是霜的他们的 superhydrophobic 表面压制冰的反糖衣和除去的应用被使用。另外，防护有效性(SE ) 的优异电磁的干扰(EMI ) 被达到，与曾经在文学报导的最高的价值之一。

关 键 词：dual hole nanoimprint lithography SUPERHYDROPHOBIC arbon nanotube durability multifunction 

分 类 号：TB332[一般工业技术—材料科学与工程] TB383