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Improvement of adhesive properties of plastics by radiation graft polymerization

✍ Scribed by Kazuo Manaka; Tamotsu Tomioka

Publisher: John Wiley and Sons
Year: 1965
Tongue: English
Weight: 679 KB
Volume: 9
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1965.070091113

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✦ Synopsis

Epoxy compounds such as ally1 glycidyl ether, phenyl glycidyl ether, and Epicote 812, which are not polymerieable by irradiation, were irradiated by -prays to a total dose of 1 X 107-2 X lo+, 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 polymerieable by irradiatian, was radiation-grafted to polyethylene and to polytetrafluoroethylene by simultaneous irradiation with Y-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.

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