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Surface Modification of Polytetrafluoroethylene by Ar+ Irradiation for Improving Adhesion to other Materials

Published online by Cambridge University Press:  03 September 2012

S. K. Koh ,
S. C. Park ,
J. W. Seok ,
S. C. Choi ,
W. K. Choi  and
H. J. Jung
S. K. Koh
Affiliation:
Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul, 130-650, Korea
S. C. Park
Affiliation:
Samyang Group R&D Center, 63-2 Hwaam-Dong, Yusung-Gu, Taejeon, Korea
J. W. Seok
Affiliation:
Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul, 130-650, Korea
S. C. Choi
Affiliation:
Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul, 130-650, Korea
W. K. Choi
Affiliation:
Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul, 130-650, Korea
H. J. Jung
Affiliation:
Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul, 130-650, Korea
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Abstract

Ion Irradiation on polytetrafluoroethylene(PTFE) has been carried out to improve adhesion to metal and to adhesive cement. Argon ion was irradiated on the polymer, and amount of Ar+ was changed from 1014 ions/cm2 to l×1017 ions/cm2 at 1 keV, and 4 ml/min of oxygen gas was flowed near the polymer surface during the ion irradiation. Wetting angle was changed from 100 degree to 70 – 150 degree depending on the ion beam condition. The changes of wetting angle and effects of Ar+ irradiation in oxygen environment were explained in a view of surface morphology due to the ion beam irradiation onto PTFE and formation of hydrophilic group due to a reaction between irradiated polymer chain and the blown oxygen. Strongly enhanced adhesions were explained by interlock mechanism, formation of electron acceptor groups on the modified PTFE, and interfacial chemical reaction between the irradiated surface and the deposited materials.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 438: Symposium A – Materials Modificaton and Synthesis by Ion Beam… , 1996 , 523
Copyright
Copyright © Materials Research Society 1997

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