抄録
Ozone treatment of polypropylene films of homopolymer, random copolymer and block copolymer (with ethylene) was investigated as a means of modifying their surface properties. The chemical and physical characteristics of the surfaces of the treated films were then studied by contact angle measurement, ATR IR spectrometry, and SEM observation. Ozone treatment was shown to be effective in improving the wettablity of polypropylene surfaces at water-contact angle of up to 67°C. Furthermore, ultrasonic cleaning with organic solvents was shown to be effective in removing from the surface the degraded fragments formed by ozone treatment.
