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Surface modification of tetrafluoroethylene–hexafluoropropylene (FEP) copolymer by remote H 2 , N 2 , O 2 , and Ar plasmas
Author(s) -
Park Y. W.,
Tasaka S.,
Inagaki N.
Publication year - 2001
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.2293
Subject(s) - tetrafluoroethylene , hexafluoropropylene , surface modification , copolymer , materials science , adhesion , plasma , copper , polymer chemistry , metal , chemical engineering , composite material , polymer , metallurgy , physics , quantum mechanics , engineering
Tetrafluoroethylene–hexafluoropropylene (FEP) copolymer sheets were modified by remote H 2 , N 2 , O 2 , and Ar plasmas, and the effects of the modification on adhesion between FEP sheets and copper metal were investigated. The four plasmas were able to modify the FEP surfaces' hydrophilicity. Defluorination and oxidation reactions on the FEP surfaces occurred with exposure to the plasma. The hydrophilic modification by H 2 plasma was best, followed by modification by O 2 , Ar, and N 2 plasmas. The surface modification of FEP by all four remote plasmas was effective in improving adhesion with copper metal. The peel strength order of the FEP/Cu adhesive joints was H 2 plasma > Ar plasma > N 2 plasma > O 2 plasma. Mild surface modification is important for the adhesion improvement of FEP with Cu metal. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 1258–1267, 2002