Surface modification of poly(vinyl chloride)by long-distance and direct argon RF plasma  

作　　者：LI Ru CHEN Jierong 

机构地区：[1]College of Environmental and Chemical Engineering, Xi'an Jiaotong University, Xi'an 710049, China [2]College of Environmental and Chemical Engineering, Xi'an University of Engineer Science &Technology, Xi'an 710048, China

出　　处：《Chinese Science Bulletin》2006年第5期615-619,共5页

基　　金：supported by the National Natural Science Foundation of China(Grant No.20174030);the specialized research Fund for the Doctoral Program of Higher Education(20010698007);the Scientific Research Star Fund for the Study Abroad Returnee and the Key Scientific Technique Item of Shaanxi Province(2001[345]).

摘　　要：This paper reports the effects of long- distance and direct argon radio frequency (RF) plasma surface treatment on polyvinyl chloride (PVC) films in terms of changes in surface wettability and surface chemistry. The surface properties are char- acterized by the water contact angle measurement, X-ray photoelectron spectroscopy (XPS) and scan- ning electron microscopy (SEM). The mechanism is further analyzed and the role of all kinds of active species, e.g. electrons, ions and free radicals in- volved in plasma surface modification is further evaluated. Results show that the long-distance and direct RF plasma treatments modify the PVC surface in morphology and composition, and both modifica- tions cause surface oxidation of PVC films, in the forming of functional groups enhancing polymer wet- tability. The effect of the long-distance argon RF plasma is more notable. This suggests that long-distance argon RF plasma could restrain the ion and electron eroding effect and enhance free radical reaction.This paper reports the effects of longdistance and direct argon radio frequency （RF） plasma surface treatment on polyvinyl chloride （PVC） films in terms of changes in surface wettability and surface chemistry. The surface properties are characterized by the water contact angle measurement, X-ray photoelectron spectroscopy （XPS） and scanning electron microscopy （SEM）. The mechanism is further analyzed and the role of all kinds of active species, e.g. electrons, ions and free radicals involved in plasma surface modification is further evaluated. Results show that the long-distance and direct RF plasma treatments modify the PVC surface in morphology and composition, and both modifications cause surface oxidation of PVC films, in the forming of functional groups enhancing polymer wettability. The effect of the long-distance argon RF plasma is more notable. This suggests that long-distance argon RF plasma could restrain the ion and electron eroding effect and enhance free radical reaction.

关 键 词：聚氯乙烯 表面改性 远距离射频氩等离子体 表面处理 X射线光电子光谱学 扫描电子显微术 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业] TQ316.6