Functionalization of HDPE powder by CF4 plasma surface treatment in a fluidized bed reactor

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The surface of HDPE polymer powder was fluorinated by CF4 plasma in a fluidized bed reactor. Plasma is generated by an inductively coupled electrode at 13.56 MHz (rf) frequency, connected to an auto matching network and an rf power generator. In plasma surface fluorination, the CF, gas is diluted with He gas. The experimental variables are treatment time and rf power. The chemical property of the modified powder has been determined by using ESCA and FTIR. Plasma surface fluorination with the powder in a fluidized bed reactor results from the formation of CHF-CH2, CHF-CHF and CF2 groups. These fluorine functionalities and the fluorine atomic ratio on the surface increase with the treatment time and rf power. It has been found that the composite parameter is a good measure for determining the effect of total energy input on the plasma surface treatment of polymer powder in a fluidized bed reactor.
Publisher
Springer
Issue Date
1999-01
Language
English
Article Type
Article
Keywords

POLYMERS; DISCHARGE; POLYETHYLENE; FLUORINE; MODEL; FILMS; BULK; GAS

Citation

KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.16, no.6, pp.731 - 736

ISSN
0256-1115
URI
http://hdl.handle.net/10203/70214
Appears in Collection
CBE-Journal Papers(저널논문)
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