CARBON NANOTUBE ARRAY HAVING SELF-CLEANING ABILITY AND DURABILITY, WHICH SATISFIES L<=πDσcosθ/P

摘要

PURPOSE: A carbon nanotube array is provided to improve its self-cleaning ability and durability, thereby embodying the antifouling and highly water repellent surface. CONSTITUTION: The carbon nanotube array(13) is formed on a substrate(11) in a way that a plurality of carbon nanotubes(13a, 13b) having a certain diameter(D) satisfies the following equation, when a certain fluid having a certain surface tension(σ) and a certain hydraulic pressure(P) is contacted with the surface of the carbon nanotubes at a certain contact angle(&thgr;): L<=πDσcos&thgr;/P, wherein L is an interval between carbon nanotubes, and other symbols are as defined above. The height(H) of the carbon nanotube is not less than 1/200 and not more than 1/20 compared to the interval(L).