| 摘要 |
<p>Device with a hydrophobic and/or lipophobic surface formed of a carpet of nanofibers (20) that are totally sheathed in a hydrophobic and/or lipophobic continuous polymer film and the surface (22) between the nanofibers is covered with a layer of the same polymer, where the nanofibers are grown by depositing a catalyst on the surface, heating it to form droplets and adding a hydrocarbon precursor, the nanofibers grow where the droplets are and are then coated with polymer, is new. An independent claim is also included for making such a device, by depositing nanofibers onto a surface of the device, then sheathing the nanofibers with a hydrophobic and/or lipophobic polymer by a dry physical deposit method or by electro-grafting. This is done in the following stages: deposit of the carbon nanofibers onto one surface of a piece by depositing a catalyst by a PVD method, a target made of a catalytic material bombarded with a flow of ionized argon, the atoms of the target which are ejected cover the surface. The piece is then put into a CVD oven under vacuum to make the carbon nanofiber deposit. The catalyst is made into droplets under the effect of the rising temperature, a hydrocarbon precursor is introduced into the vessel, the nanofibers are grown at the points where the catalyst is in a droplet. The nanofibers are then coated with a hydrophobic polymer using a PECVD technique or by electro-grafting.</p> |
