Thermal stability of superhydrophobic, nanostructured surfaces

Title
Thermal stability of superhydrophobic, nanostructured surfaces
Authors
차성철허은규고태준김성진노현철이광렬오규환문명운
Keywords
DLC; high temperature stability; wetting angle; hydrophobic
Issue Date
2013-02
Publisher
Journal of colloid and interface science
Citation
VOL 391, 152-157
Abstract
The thermal stability of superhydrophobic, nanostructured surfaces after thermal annealing was explored. Flat surfaces coated with hydrophobic diamond-like carbon (DLC) via plasma polymerization of hexamethyldisiloxane (HMDSO) showed a gradual decrease in the water contact angle from 90o to 60o while nanostructured surfaces maintained superhydrophobicity with more than 150° for annealing temperatures between 25 and 300 °C. It was also found that surfaces with nanostructures having an aspect ratio of more than 5.2 may maintain superhydrophobicity for annealing temperatures as high as 350 °C; above this temperature, however, the hydrophobicity on surfaces with lower aspect ratio nanostructures gradually degraded. It was observed that regardless of the aspect ratios of the nanostructure, all superhydrophobic surfaces became superhydrophilic after annealing at temperatures higher than 500 °C.
URI
http://pubs.kist.re.kr/handle/201004/46165
ISSN
00219797
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE