Ar+ ion irradiation in oxygen environment for improving wettability of polymethylmethacrylate
- 1 November 1996
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 11 (11) , 2933-2939
- https://doi.org/10.1557/jmr.1996.0371
Abstract
Ion irradiation with various oxygen flow rates has been carried out to improve the wettability of polymethylmethacrylate (PMMA) to water and to enhance the adhesion between Al and the polymer. Ar+ ion and oxygen ion were irradiated on the polymer, and amounts of ions were changed from 5 × 1014 Ar+/cm2 to 5 × 1016 Ar+/cm2 by a broad ion beam source. Oxygen gas from 0 ml/min to 7 ml/min was flowed near the polymer surface during the ion irradiation, and the energy of ions was changed from 500 eV to 1500 eV. The wetting angle was reduced from 68° to 49° with the Ar+ ion irradiation only at 1 keV energy, to 43° with the oxygen ion irradiation, and dropped to 8° with Ar+ ion irradiation with flowing 4 ml/min oxygen gas near the polymer surface. Changes of wetting angle with oxygen gas and Ar+ ion irradiation were explained by a two-step chemical reaction among polymer matrix, energetic ions, and oxygen gas. The effects of Ar+ ion and oxygen ion irradiation were explained by considering formation of hydrophilic groups due to a reaction between irradiated polymer chain by energetic ion irradiation and blown oxygen gas, and enhanced adhesion between Al and PMMA was explained by the formation of electron acceptor groups in polymer and electron donors in metal, and by the chemical reaction in the interface between irradiated polymer surface and deposited metal.Keywords
This publication has 25 references indexed in Scilit:
- Improving wettability of polycarbonate and adhesion with aluminum by Ar+ ion irradiationJournal of Materials Research, 1995
- Improving adhesion between thin chromium film and polyimide substrate by Ar+ irradiationPolymer Engineering & Science, 1992
- Ion beam enhancement of metal-insulator adhesionNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1992
- Mev helium ion beam etching of polytetrafluoroethyleneNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1988
- Surface modification of silicone rubber by ion implantationNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1988
- Surface modifications of polymers with fluorine‐containing plasmas: Deposition versus replacement reactionsPolymer Engineering & Science, 1987
- Chemical bonding and reaction at metal/polymer interfacesJournal of Vacuum Science & Technology A, 1985
- Two types of MeV ion beam enhanced adhesion for Au films in SiO2Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1985
- The use of fast heavy ions to improve thin film adhesionThin Solid Films, 1983
- Surface modification of poly(ethylene terephthalate) by electrical discharge treatmentPolymer, 1980