Charging Behavior of Chopped Carbon fibers under High Intensity Electric Fields

Min Park; Junkyung Kim; Soon Ho Lim; Moon Bae Ko; Chul Rim Choe; Vladimir Sergeyevich Mironov

Korea Polymer Journal, Vol.8, No.1, 6-11, February, 2000

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Charging Behavior of Chopped Carbon fibers under High Intensity Electric Fields

Min Park^†, Junkyung Kim , Soon Ho Lim , Moon Bae Ko, Chul Rim Choe , and Vladimir Sergeyevich Mironov¹

Polymer Hybrid Research Center, Division of material Research, Korea Institute of Science and Technology, P.O.Box 131, Cheongryang, Seoul 130-650, Korea
¹V.A. Belyi Metal-Polymer Research Institute, National Academy of Science of Belarus, 32-a Kirov Street, Gomel, 246652, Republic Belarus

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In this study, we examined the charging behavior of chopped fibers during electroflocking process which is one of the dey processes of the novel technique for fabricating conductive polymer composite films. Short carbon fibers(CF) during electroflocking were electrically charged by the combined effect of contact charging, corona charging and tribocharging. The specific charge built on CF surface was measured by using Faraday cup method. Specific charge increased not only with increasing electric field strength and potential impressed to mesh electrode as expected from theoretical considerations in literature, but with decreasing mesh opening size due to the improved contact charging condition. However, CF length was found unexpectedly to influence the amount of CF specific charge due to the agglomerated nature of CF flocks leading to the change in charging conditions.

[References]

Popkov VI, Higher Electric Fields in Technological Processes: Electron Ion Technology, Energiya, Moscow, 1969 (In Russian) (1969)
Dovgyalo VA, Yurkevich OR, Polymer Composites and Coatings Based on Dispersed Polymers, Science and Technics, Minsk, 1992 (In Russian) (1992)
Drzal LT, Padaki S, Vyakarnam MN, Fernandes JF, Polymer Powder Technology, M. Narkis and N. Rosenzweig, Eds., J. Wiley & Sons, New York, 1995, pp 511-530 (1995)
Muzzy JD, Colton JS, Advanced Composites Manufacturing, T.G. Gutowski, Ed., J. Wiley & Sons, New York, 1997, pp 81-114 (1997)
Voronezhcev YI, Goldade VA, Pinchuk LS, Snezhkov VV, Electric and Magnetic Fields in Polymer Composite Technology, Science and Technics, Minsk, 1990 (In Russian) (1990)
Mironov VS, Skryabin OB, Yurkevich OR, Advances in Materials and Processing Technologies, M.S.J. Hashmi, Ed., Dublin City Univ., 1993, Vol. 1, pp 435-441 (1993)
Mironov VS, Park M, Compos. Sci. Technol., in press
Sugino M, Kino Zairyo, 19(5), 5 (1999)
Kozo K, Kogyo Zairyo, 47(3), 39 (1999)
Bershev EN, Physical Fundamentals of Electroflocking Technology, Leningrad State University (In Russian) (1984)
Popkov VI, Glazov MI, Kinetics of Charging and Dynamics of Fibers in Electric Field, Moscow (In Russian) (1976)
Lebel V, Shuman V, Luhmuller O, Static Electrification at Chemical Fibers Processing, Light Industry, Moscow (Russian translation) (1966)
Leb L, Static Electrification, Gosenergoatomizdat, Moscow-Leningrad (Russian translation) (1963)

[Referenced By]

[Related Articles]

[1] Popkov VI, Higher Electric Fields in Technological Processes: Electron Ion Technology, Energiya, Moscow, 1969 (In Russian) (1969)

[2] Dovgyalo VA, Yurkevich OR, Polymer Composites and Coatings Based on Dispersed Polymers, Science and Technics, Minsk, 1992 (In Russian) (1992)

[3] Drzal LT, Padaki S, Vyakarnam MN, Fernandes JF, Polymer Powder Technology, M. Narkis and N. Rosenzweig, Eds., J. Wiley & Sons, New York, 1995, pp 511-530 (1995)

[4] Muzzy JD, Colton JS, Advanced Composites Manufacturing, T.G. Gutowski, Ed., J. Wiley & Sons, New York, 1997, pp 81-114 (1997)

[5] Voronezhcev YI, Goldade VA, Pinchuk LS, Snezhkov VV, Electric and Magnetic Fields in Polymer Composite Technology, Science and Technics, Minsk, 1990 (In Russian) (1990)

[6] Mironov VS, Skryabin OB, Yurkevich OR, Advances in Materials and Processing Technologies, M.S.J. Hashmi, Ed., Dublin City Univ., 1993, Vol. 1, pp 435-441 (1993)

[7] Mironov VS, Park M, Compos. Sci. Technol., in press

[8] Sugino M, Kino Zairyo, 19(5), 5 (1999)

[9] Kozo K, Kogyo Zairyo, 47(3), 39 (1999)

[10] Bershev EN, Physical Fundamentals of Electroflocking Technology, Leningrad State University (In Russian) (1984)

[11] Popkov VI, Glazov MI, Kinetics of Charging and Dynamics of Fibers in Electric Field, Moscow (In Russian) (1976)

[12] Lebel V, Shuman V, Luhmuller O, Static Electrification at Chemical Fibers Processing, Light Industry, Moscow (Russian translation) (1966)

[13] Leb L, Static Electrification, Gosenergoatomizdat, Moscow-Leningrad (Russian translation) (1963)