| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9559771 | Polymer | 2005 | 6 Pages |
Abstract
Polydimethylsiloxane (PDMS) materials show the unique phenomenon that when exposed to electrical discharge, such as corona discharge, their hydrophobic surface becomes hydrophilic. However, after a certain relaxation time they gradually regain their hydrophobicity. In this study the adhesive force obtained by AFM force distance measurements using a hydrophilic Si3N4 probe is used to track the recovery of the hydrophobicity. The time constant of the recovery can be determined by measuring the adhesive force as a function of the recovery time after corona exposure. It is shown how these time constants can be used to monitor the recovery rate as a function of corona treatment time for both filled and unfilled PDMS compounds.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
M. Meincken, T.A. Berhane, P.E. Mallon,