A Study on Charging Properties and Triboelectric Series of Plastic by Tribo-charging

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2006 Vol.43, Issue 6 Preview Page Next Page

A Study on Charging Properties and Triboelectric Series of Plastic by Tribo-charging 마찰하전에 의한 플라스틱의 하전특성 및 대전서열 정립에 관한 연구: 박철현, 전호석, 박재구
Chul Hyun Park, Ho Seok Jeon and Jai Koo Park

31 December 2006. pp. 560-569

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Abstract

The triboelectrostatic separation system is composed of tribo-charging of materials and separation of charged material in an electric field. The selective charging and optimum charge density of materials are most important for separation efficiency. In this study, we developed a new charger that moves vertically and the charging materials, and measured charge polarity and charge density of plastics using a Faraday cage. The results were then used to estimate the work function of plastics and to establish the triboelectric series of plastics. Also, we investigated effects of various factors on the charge polarity and the charge efficiency, and obtained a basic data that can be used for effective separation of waste plastics.

Keywords

Tribo charging

Work function

Triboelectric series

Waste plastic

Recycle

마찰하전형정전선별법을 이용한 혼합플라스틱의 재질분리 시스템은 마찰하전과 하전된 물질의 전기장 내에서의 분리로 대별된다. 특히 마찰하전은 재질의 선택적 하전과 최적 하전량 구현이 무엇보다 중요하다. 이를 위해 본 연구에서는 기존의 하전방식 이외의 새로운 수직 왕복형 하전장치와 하전물질들을 개발하였으며, faraday cage로 플라스틱의 하전극성과 하전량을 측정하였다. 금속의 일함수 값과 각 플라스틱 하전량의 관계를 이용하여 범용 플라스틱의 일함수 값을 산정하였으며, 플라스틱의 종류별 하전극성과 대전의 크기를 비교하여 대전서열을 정립하였다. 또한 하전극성과 하전효율에 영향을 미치는 여러 가지 인자들의 하전특성을 조사하여 산지별 폐플라스틱 재질분리를 예측할 수 있는 자료를 확보하였다.

키워드

마찰하전

일함수

대전서열

하전특성

폐플라스틱

재활용

References

김도균, 조희찬, 전호석, 2002, “폐플라스틱 정전분리를 위한 하전특성에 관한 연구” 한국자원리싸이클링학회지, Vol. 11, No. 3, pp. 37-45.
박철현, 전호석, 김완태, 박재구, 2005, “정전선별법을 이용한 폐전선 피복 플라스틱 재질분리,” 한국폐기물학회지, Vol. 22, pp. 138-144.
전호석, 박철현, 김병곤, 박재구, 2006, “생활계 폐플라스틱 재활용을 위한 정전선별 기술개발,” 한국자원리싸이클링학회지, Vol. 15, No. 1, pp38-36.
Brandrup, J., Bittner, M., 1996, “Recycling and recovery of plastics,” Hanser Publishers.
Davies, D. K., 1970, “Charge generation on solids”, Adv. Stat. Electrification, Vol. 1, pp. 10-21.
Diaza, A.F., 2004, “A semi-quantitative tribo-electric series for polymeric materials :the influence of chemical structure and properties,” Journal of Electrostatics, Vol. 62, pp. 277-290.
Dodbiba, G., Shibayama, A., 2002, “Electrostatic separation of the shredded plastic mixtures using a tribo cyclone,” Magnetic and Electrical Separation, Vol. 11, No.1-2, pp. 63-92.
Duke, C. B. and Fabish, T. J. 1978, “Contact electrification of polymers: Aquantitative model,” Journal of Applied Physics, Vol. 49, pp. 315-321.
Erno Nemeth, Victoria Albrecht, Gert Schubert, 2002, “Polymer tribo-electric charging: dependence on thermodynamic surface properties and relative humidity,” Journal of Electrostatics, Vol. 58, pp. 3-16.
Fasso, L., Chao, B. T. and Soo, S. L., 1982, “Measurement of electrostatic charges and concentration of particles in the freeboard of a fluidized bed,” Powder Technology, Vol. 33, pp. 211-221.
Higashiyama, Y., Ujiie, Y. and Asano, K., 1997, “Triboelectrification of plastic particles on a vibrating feeder laminated with a plastic film,” Journal of Electrostatics, Vol. 42, No.1-2, pp. 63-68.
Ho-Seok Jeon, Chul-Hyun Park, Bung-Kon Kim, Jai-Koo Park, 2006, “Development of Triboelectrostatic Separation Technique for Recycling of Final Waste Plastic,” Geosystem Engineering, Vol. 9, No. 1, pp. 21-24.
Inculet, I.I., Castle, G.S.S., 1994, “Tribo-Electrification System for Electrostatic Separation of Plastics,” IEEE Trans. IAS, pp. 1397-1399.
Kelly, E. G. and Sottiswood, D. J., 1988, “The theory of electrostatic separations : a Review, Part.Ⅰ, Fundamentals,” Minerals Engineering, Vol.2, No.1, pp. 33-46.
Lowell, J. and Rose-Innes, A. C., 1980, “Contact electrification,” Advances In Physics, Vol. 29, No. 6, pp. 947-1023.
Michaelson, H.B., 1996, “In CRC Handbook of chemistry and physics”, pp. 12-122. Boca Raton: CRC Press.
Mukherjee, A, 1987, “Surface charge of illinois coal for electrostatic cleaning,” paper preprinted in ACS Division of Fuel Chemistry.
Pearse, I. J. and Hickey, T. J., 1978, “The separation of mixed plastics using a dry triboelectric technique,” Resource Recovery and Conservation, Vol. 3, pp. 179-190.
Rose-Innes, A. C., 1980, “Contact charging of dielectric solid 1980,” Bristol, Great Britain: The Institute of Physics, pp. 123-132.
Yanar,D.K., Kwetkus, B.A., 1995, “Electrostatic separation of polymer powders,” Journal of Electrostatics, Vol. 35, pp. 257-266.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society for Geosystem Engineering
Journal Title(Ko) :한국지구시스템공학회지
Volume : 43
No :6
Pages :560-569

[1] 김도균, 조희찬, 전호석, 2002, “폐플라스틱 정전분리를 위한 하전특성에 관한 연구” 한국자원리싸이클링학회지, Vol. 11, No. 3, pp. 37-45.

[2] 박철현, 전호석, 김완태, 박재구, 2005, “정전선별법을 이용한 폐전선 피복 플라스틱 재질분리,” 한국폐기물학회지, Vol. 22, pp. 138-144.

[3] 전호석, 박철현, 김병곤, 박재구, 2006, “생활계 폐플라스틱 재활용을 위한 정전선별 기술개발,” 한국자원리싸이클링학회지, Vol. 15, No. 1, pp38-36.

[4] Brandrup, J., Bittner, M., 1996, “Recycling and recovery of plastics,” Hanser Publishers.

[5] Davies, D. K., 1970, “Charge generation on solids”, Adv. Stat. Electrification, Vol. 1, pp. 10-21.

[6] Diaza, A.F., 2004, “A semi-quantitative tribo-electric series for polymeric materials :the influence of chemical structure and properties,” Journal of Electrostatics, Vol. 62, pp. 277-290.

[7] Dodbiba, G., Shibayama, A., 2002, “Electrostatic separation of the shredded plastic mixtures using a tribo cyclone,” Magnetic and Electrical Separation, Vol. 11, No.1-2, pp. 63-92.

[8] Duke, C. B. and Fabish, T. J. 1978, “Contact electrification of polymers: Aquantitative model,” Journal of Applied Physics, Vol. 49, pp. 315-321.

[9] Erno Nemeth, Victoria Albrecht, Gert Schubert, 2002, “Polymer tribo-electric charging: dependence on thermodynamic surface properties and relative humidity,” Journal of Electrostatics, Vol. 58, pp. 3-16.

[10] Fasso, L., Chao, B. T. and Soo, S. L., 1982, “Measurement of electrostatic charges and concentration of particles in the freeboard of a fluidized bed,” Powder Technology, Vol. 33, pp. 211-221.

[11] Higashiyama, Y., Ujiie, Y. and Asano, K., 1997, “Triboelectrification of plastic particles on a vibrating feeder laminated with a plastic film,” Journal of Electrostatics, Vol. 42, No.1-2, pp. 63-68.

[12] Ho-Seok Jeon, Chul-Hyun Park, Bung-Kon Kim, Jai-Koo Park, 2006, “Development of Triboelectrostatic Separation Technique for Recycling of Final Waste Plastic,” Geosystem Engineering, Vol. 9, No. 1, pp. 21-24.

[13] Inculet, I.I., Castle, G.S.S., 1994, “Tribo-Electrification System for Electrostatic Separation of Plastics,” IEEE Trans. IAS, pp. 1397-1399.

[14] Kelly, E. G. and Sottiswood, D. J., 1988, “The theory of electrostatic separations : a Review, Part.Ⅰ, Fundamentals,” Minerals Engineering, Vol.2, No.1, pp. 33-46.

[15] Lowell, J. and Rose-Innes, A. C., 1980, “Contact electrification,” Advances In Physics, Vol. 29, No. 6, pp. 947-1023.

[16] Michaelson, H.B., 1996, “In CRC Handbook of chemistry and physics”, pp. 12-122. Boca Raton: CRC Press.

[17] Mukherjee, A, 1987, “Surface charge of illinois coal for electrostatic cleaning,” paper preprinted in ACS Division of Fuel Chemistry.

[18] Pearse, I. J. and Hickey, T. J., 1978, “The separation of mixed plastics using a dry triboelectric technique,” Resource Recovery and Conservation, Vol. 3, pp. 179-190.

[19] Rose-Innes, A. C., 1980, “Contact charging of dielectric solid 1980,” Bristol, Great Britain: The Institute of Physics, pp. 123-132.

[20] Yanar,D.K., Kwetkus, B.A., 1995, “Electrostatic separation of polymer powders,” Journal of Electrostatics, Vol. 35, pp. 257-266.

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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