Here is the abstract you requested from the IMAPS_2012 technical program page. This is the original abstract submitted by the author. Any changes to the technical content of the final manuscript published by IMAPS or the presentation that is given during the event is done by the author, not IMAPS.
|Dual hole patterned carbon nanotube composites with super-hydrophobic properties|
|Keywords: Superhydrophobic , Carbon nanotube, Composite|
|We report on a new type carbon nanotube (CNT)-polymer nanocomposites with superior surface properties. Such composites were synthesized through a new methodology for multifunctional nanotube composites, where Nanoimprint Lithography (NIL) techniques for dual hole pattern were used to form super-hydrophobic and scratch durable surface. Different with spray methods or chemical etching methods for conducting and super-hydrophobic coating layer, our strategy directly imprint super-hydrophobic pattern on the surface of nanocomposites through stamping hard (or soft) mold into a soft material. Therefore, it contains bulk properties (such as mechanical, electrical and microwave properties) and enhanced surface properties at one material. Such composite, e.g., CNT-PDMS (Polydimethylsiloxane), incorporate good dispersion of nanotubes and Nil techniques, yielding outstanding electrical properties (over 500 S/m for DC conductivity) with super-hydrophobic properties (contact angle ~ 167 degree) and microwave shielding efficiency, SE (over 100 dB) for electromagnetic interference (EMI) applications. In addition, dual hole pattern on nanocomposite surface enable long-term endurance against environment exposure while existing super-hydrophobic pattern are easily fragile. The above achievements are expected to lay a strong foundation for the widespread use of CNT composites for a whole of applications including electromagnetic interference shielding, microwave absorbing material, reinforce materials for vehicle, ship and structure unit, sensor device and solar cell electrodes.|
Samsung Advanced Institute of Technology