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Title of article :
Remote nitrogen plasma treatment of a polyethylene powder Optimisation of the process by composite experimental designs
Author/Authors :
Brigitte Mutel، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
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Abstract :
A coupling between fluidised bed and far cold remote nitrogen plasma technologies is used to treat a polyethylene powder in order to increase its wettability evaluated from capillarity rising measurements. An optimisation of the process is performed thanks to face-centred central composite experimental designs. It is shown that treatment duration and oxygen rate added to nitrogen are the more influent parameters. Electron spin resonance analyses revealed the presence of a mixture of alkyl and allyl radicals on the treated powder. Reactions leading to the incorporations of new chemical functions on the polyethylene surface are proposed.
Keywords :
cold plasma , Polyethylene powder , Wettability , Capillarity rising , Electron spin resonance , Surface modifications
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
Link To Document :