T1601-2-5 樹脂転写によるカーボンナノチューブ機能表面を有する3次元構造体の作製([T1601-2]マイクロナノメカトロニクス(2))

概要

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A novel process for fabricating 3-D microscale structures using the vertically aligned carbon nanotubes (CNTs) by controlling the polymer penetration was investigated for application as a micro-reactor. The CNTs were grown by chemical vapor deposition and Poly-di-methyl-siloxane(PDMS) was used as the penetrated polymer. Evaluating of the penetration height as the affinity and viscosity, hydrophilic CNTs and high viscosity of PDMS was prepared. In experiments, the contact angle between CNTs and PDMS, and the size change of a PDMS droplet on the CNTs were measured. In the result, viscosity was dominant factor comparing affinity in the penetration. A 3-D microstructure was fabricated with high viscosity PDMS and hydrophilic CNTs by printing. However, some defects such as crimping and non-uniformity were observed on the tips and corners. We need to control the viscosity and the affinity properly, as well as other factors, such as the lengths of the CNTs, to more accurately form 3-D structures with the CNTs.
一般社団法人日本機械学会の論文
2010-09-04