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

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Chinese Science Bulletin

Abstract

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 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.

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Correspondence to Li Ru.

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Li, R., Chen, J. Surface modification of poly (vinyl chloride) by long-distance and direct argon RF plasma. CHINESE SCI BULL 51, 615–619 (2006). https://doi.org/10.1007/s11434-006-0615-5

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  • DOI: https://doi.org/10.1007/s11434-006-0615-5

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