Radiation Modification of Adhesion Properties of Waste Plastics

Changes in the adhesive characteristics of polyethylene, polypropylene, polystyrene, polyethylene terephthalate, polyvinyl chloride, and polycarbonate films and powders as a result of irradiation with 3-MeV electrons in air have been studied. Radiolytic oxidation forms polar groups on the surface of...

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Bibliographic Details
Published in:High energy chemistry 2021-07, Vol.55 (4), p.295-299
Main Authors: Vcherashnyaya, A. S., Mikhailova, M. V., Shapagin, A. V., Poteryaev, A. A., Stepanenko, V. Yu, Ponomarev, A. V.
Format: Article
Language:English
Subjects:
Adhesion
Chemistry
Chemistry and Materials Science
Contact angle
Oxidation
Physical Chemistry
Polyethylene
Polyethylene terephthalate
Polypropylene
Polystyrene resins
Polyvinyl chloride
Radiation
Radiation Chemistry
Radiation effects
Surface energy
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Summary:Changes in the adhesive characteristics of polyethylene, polypropylene, polystyrene, polyethylene terephthalate, polyvinyl chloride, and polycarbonate films and powders as a result of irradiation with 3-MeV electrons in air have been studied. Radiolytic oxidation forms polar groups on the surface of the plastics and thus increases the surface hydrophilicity. At a dose of 100 kGy, the contact angle decreases by 6° for polyvinyl chloride and by 20° for polyethylene. The radiation-induced improvement in adhesion is mainly due to an increase in the polar component of surface energy. For polypropylene, the adhesion increases by a factor of 2.5. The use of irradiated polypropylene powder in epoxy compositions improves their stress–strain characteristics.
ISSN:0018-1439
1608-3148
DOI:10.1134/S0018143921040159