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Surface modification of aromatic polyamide film by plasma graft copolymerization of glycidylmethacrylate for epoxy adhesion
Author(s) -
Inagaki N.,
Tasaka S.,
Inoue T.
Publication year - 1998
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/(sici)1097-4628(19980808)69:6<1179::aid-app15>3.0.co;2-o
Subject(s) - copolymer , materials science , adhesive , epoxy , glycidyl methacrylate , adhesion , composite material , polyamide , polymer chemistry , layer (electronics) , polymer
The graft copolymerization of glycidyl methacrylate, GMA, onto poly( p ‐phenylene terephthalamide), PPTA, film surfaces was investigated to improve adhesion between the PPTA film and epoxy adhesives. The graft copolymerization of GMA was carried out in two steps; a peroxide formation by a combination of argon plasma irradiation and air exposure, and the polymerization reactions of GMA. XPS analyses showed the graft copolymerization of GMA on the PPTA film surface, and only 31–40% of the PPTA film surface was covered with the GMA graft polymers. The graft copolymerization of GMA improved the adhesion between the PPTA film and the epoxy adhesive. The adhesion strength was improved 2.7 times by the graft copolymerization. The failure from the adhesive joint occurred in the epoxy adhesive layer rather than at the interface between the PPTA film and the epoxy adhesive layer. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 1179–1185, 1998