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Change of polypropylene film surface by chromic acid mixture treatment
Author(s) -
Kato Koichiro
Publication year - 1975
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.1975.070190610
Subject(s) - polypropylene , chromic acid , wetting , materials science , contact angle , polymer , chemical engineering , composite material , polymer chemistry , chemistry , organic chemistry , engineering
Polypropylene films were treated with chromic acid mixture. The change in the treated films was investigated by comparing change in amount of 2,4‐dinitrophenylhydrazones formed in the treated films with their change in wettability with water. Oxidation of the film surface zone, partial breakdown of polymer in the film surface zone, and oxidation of surface zone bared from the film inner zone seemed to occur with increase in treatment time or with increase in treatment temperature.