Hostname: page-component-848d4c4894-8bljj Total loading time: 0 Render date: 2024-06-24T15:42:06.244Z Has data issue: false hasContentIssue false
  • English
  • Français

Grinding and Separation of The Cellular Phone Housing

Published online by Cambridge University Press:  26 February 2011

Woo-Hyuk Jung ,
Nathan Tortorella ,
Charles L. Beatty  and
Stephen P. McCarthy
Woo-Hyuk Jung
Affiliation:
woohyuk.jung@gmail.com, University of Massachusetts Lowell, Plastics Engineering, One University Ave, Lowell, MA, 01854, United States, 978-453-2426
Nathan Tortorella
Affiliation:
fraser1@ufl.edu, University of Florida, Materials Science and Engineering, United States
Charles L. Beatty
Affiliation:
cbeat@ufl.edu, University of Florida, Materials Science and Engineering, United States
Stephen P. McCarthy
Affiliation:
Stephen_McCarthy@uml.edu, University of Massachusetts Lowell, Plastics Engineering, United States
Get access

Abstract

The front covers of Motorola cellular phone housings, which were composed of 62.2 wt% of polycarbonate (PC) /acrylonitrile-butadiene-styrene (ABS), were ground and separated from the undesired materials using sink-float methods. The sink-float methods in water and salt were used to remove the floating materials such as the adhesive strips and the foams, and to separate the metal parts where the recovery ratios were 92.8 and 40.5 %, respectively. The separation of residual wires and button rubbers, which could not be done by the sink-float process in water, was preformed using V-Stat Triboelectric Separator (Outokumpu Technology) of a roll separator that also provided the effective methods to separate the ground metals that had existed in the printed circuit boards where the recovery weight ratio of metal parts was 19 wt%. The separated PC/ABS’s could be compounded with the ground circuit boards or the thermoplastic elastomer called Engage®, or the reactive species of glycidyl methacrylate (GMA).

Keywords

extrusionenvironmentally benigncomposite
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 895: Symposium G – Life-Cycle Analysis Tools for “Green” Materials and Process Selection , 2005 , 0895-G05-05
Copyright
Copyright © Materials Research Society 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Preiss, J., US Patent 5,566,889, 1996.Google Scholar
2. Stahl, and Kleffmann, U. K., in Recycling and Recovery of Plastics, edited by. Brandrup, J., et al. (Hanser Publishers, New York, 1996) pp. 265–273.Google Scholar
3. Super, M. S., Enick, R. M. and Beckman, E. J., in Emerging Technologies in Plastics Recycling, edited by Andrews, G. D. and Subramanian, P. M. (ACS Symposium Series 513, American Chemical Society, Washington, D.C. 1992) pp.172–185.Google Scholar
4. Outokumpu Technology, Physical Separation Division 6100 Phillips Hwy Jacksonville, Florida USA 32216.Google Scholar
5. Bitter, M. and Bletsch, S., in Recycling and Recovery of Plastics, edited by Brandrup, J. et al. (Hanser Publishers, New York, 1996) pp.278–280.Google Scholar