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Improvement of adhesive properties of plastics by radiation graft polymerization
Author(s) -
Manaka Kazuo,
Tomioka Tamotsu
Publication year - 1965
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.1965.070091113
Subject(s) - epoxy , materials science , polytetrafluoroethylene , polyethylene , glycidyl methacrylate , adhesive , polymerization , polymer chemistry , irradiation , composite material , polyamide , grafting , polymer , physics , layer (electronics) , nuclear physics
Epoxy compounds such as allyl glycidyl ether, phenyl glycidyl ether, and Epicote 812, which are not polymerizable by irradiation, were irradiated by γ‐rays to a total dose of 1 × 10 7 −2 × 10 8 r, and decomposition of epoxy radicals was examined. The result showed that epoxy radicals are more or less radiation‐resistant and for the greater part remain unchanged. Methacryl glycidyl ester, which is polymerizable by irradiation, was radiation‐grafted to polyethylene and to polytetrafluoroethylene by simultaneous irradiation with γ‐rays, and the degree of grafting was checked. Two sheets of radiation‐graft polyethylene or polytetrafluoroethylene were bonded with epoxy resin adhesives containing polyamide hardener, and bond strength was examined. This showed that the bond strength of grafted polymer is larger than that of the nongrafted one.