Abstract
Glass fibre reinforced polyester (GFRP) plates are treated using a 50-Hz dielectric barrier discharge at peak-to-peak voltage of 30 kV in helium at atmospheric pressure with and without ultrasonic
irradiation to study adhesion improvement. The ultrasonic waves at the fundamental frequency of around 30 kHz with the sound pressure level of approximately 155 dB were introduced vertically to the GFRP surface through a cylindrical waveguide. The polar component of the surface energy was almost unchanged after the plasma treatment without ultrasonic irradiation, but drastically increased
approximately from 20 mJ m-2 up to 80 mJ m-2 with ultrasonic irradiation. The plasma treatment with ultrasonic irradiation also introduced oxygen and nitrogen containing functional groups at the GFRP surface. These changes would improve the adhesion properties of the GFRP plates.
irradiation to study adhesion improvement. The ultrasonic waves at the fundamental frequency of around 30 kHz with the sound pressure level of approximately 155 dB were introduced vertically to the GFRP surface through a cylindrical waveguide. The polar component of the surface energy was almost unchanged after the plasma treatment without ultrasonic irradiation, but drastically increased
approximately from 20 mJ m-2 up to 80 mJ m-2 with ultrasonic irradiation. The plasma treatment with ultrasonic irradiation also introduced oxygen and nitrogen containing functional groups at the GFRP surface. These changes would improve the adhesion properties of the GFRP plates.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 30th International Conference on Phenomena in Ionized Gases |
| Number of pages | 4 |
| Publisher | Queen's University Belfast |
| Publication date | 2011 |
| Pages | D13 |
| Publication status | Published - 2011 |
| Event | 30th International Conference on Phenomena in Ionized Gases - Belfast, United Kingdom Duration: 28 Aug 2011 → 2 Sept 2011 Conference number: 30 |
Conference
| Conference | 30th International Conference on Phenomena in Ionized Gases |
|---|---|
| Number | 30 |
| Country/Territory | United Kingdom |
| City | Belfast |
| Period | 28/08/2011 → 02/09/2011 |