화학공학소재연구정보센터
Applied Surface Science, Vol.257, No.11, 4821-4825, 2011
Facile fabrication of superhydrophobic polytetrafluoroethylene surface by cold pressing and. sintering
A series of superhydrophobic polytetrafluoroethylene (PTFE) surfaces were prepared by a facile cold pressing and sintering method, and their microstructures and wetting behaviors could be artificially tailored by altering sintering temperature and using different masks. Specifically, the microstructures mainly depended on the sintering temperature, whereas the wetting behaviors, water contact angle (WCA) and sliding angle (SA), greatly hinged on both the sintering temperature and mask. Then a preferable superhydrophobic surface with WCA of 162 +/- 2 degrees and SA of 7 degrees could be obtained when the sintering temperature was 360 degrees C and the 1000 grit abrasive paper was used as a mask. In addition, it was worth noting that the as-prepared surfaces exhibited excellent stability under UV illumination, which was the most key factor for them toward practical applications. (c) 2010 Elsevier B.V. All rights reserved.