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《Vacuum》 2008-06
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Effect of RF-induced atomic oxygen exposure on surface properties of PET films

LI Sheng-gang1,ZHANG Dan2,TIAN Xiu-bo1,HUANG Yong-xian1,YANG Shi-qin1(1.State Key Laboratory of Advanced Welding Production Technology,School of Materials Science & Engineering,Harbin University of Technology,Harbin 150001;2.Department of Health Information Management,Shanghai Technical college of SiBo,School of Health and Nursing,Shanghai 203100)  
PET thin film samples were exposed to atomic oxygen(AO) whicn came from radio-frequency discharge for different times.Effects of the AO exposure on the mass loss,surface morphology and contact angle of the samples were investigated with their surface structure analyzed using FTIR before and after the exposure.The results indicated that the sample temperature increases with exposure time and stabilizes after a certain time,and its mass loss and surface roughness also increase with exposure time.Meanwhile,the contact angle decreases first then increases.The FTIR results demonstrated that the amount of such functional groups in film surface as O-C =O and C-O oxygen-radicals decrease after the exposure,and this may be attributed to the oxidation and etching effect induced by AO exposure.
【Fund】: 国家自然科学基金(10775036);; 新世纪优秀人才计划资助项目
【CateGory Index】: TB383.2
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