caa a22 4500 388022566 CHVBK 20180307124928.0 cr unu---uuuuu 161130e199805 xx s 000 0 eng 10.1557/JMR.1998.0193 doi S0884291400044290 pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0193 Enhancing adhesion between metals or epoxy and polytetrafluoroethylene by ion assisted reaction [Elektronische Daten] Ion irradiation on polytetrafluoroethylene (PTFE) has been carried out to improve adhesions to metals and to adhesive cements. Argon ions were irradiated on the polymer, by varying the amount of Ar+ from 1 × 1014 ions/cm2 to 1 × 1017 ions/cm2 at 1 keV, and 4 ml/min of oxygen gas flowed near the polymer surface during the ion irradiation. The wetting angle of water on the PTFE surface was changed from 100° to 70-150°, depending on the ion beam condition. The changes of the wetting angle and effects of Ar+ irradiation in oxygen environment were explained by the changes in surface morphology due to the ion beam irradiation onto PTFE, and formation of a hydrophilic group due to a reaction between the irradiated polymer chain and the blown oxygen. Strongly enhanced adhesion is explained by interlock mechanism, formation of electron acceptor groups on the modified PTFE, and interfacial chemical reactions between the irradiated surface and the deposited materials. Copyright © Materials Research Society 1998 Koh S. K. Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea Seok J. W. Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea Choi S. C. Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea Choi W. K. Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea Jung H. J. Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea Journal of Materials Research Cambridge University Press 13/5(1998-05), 1363-1367 0884-2914 13:5<1363 1998 13 JMR https://doi.org/10.1557/JMR.1998.0193 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0193 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Koh S. K. Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea NATIONALLICENCE 700 1- Seok J. W. Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea NATIONALLICENCE 700 1- Choi S. C. Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea NATIONALLICENCE 700 1- Choi W. K. Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea NATIONALLICENCE 700 1- Jung H. J. Division of Ceramics, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/5(1998-05), 1363-1367 0884-2914 13:5<1363 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge