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Preparation of Recycled Polycarbonate/Acrylonitrile-Butadiene-Styrene Composites

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:
[email protected], University of Massachusetts Lowell, Plastics Engineering, One University Ave, Lowell, MA, 01854, United States, 978-453-2426
Nathan Tortorella
Affiliation:
[email protected], University of Florida, Materials Science and Engineering, United States
Charles L. Beatty
Affiliation:
[email protected], University of Florida, Materials Science and Engineering, United States
Stephen P. McCarthy
Affiliation:
[email protected], University of Massachusetts Lowell, Plastics Engineering, United States
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Abstract

The front cover of Motorola cellular phone housings were ground to the same size as original particles prior to use by a knife mill. The mixtures contained 15.2 wt% metals, 1.9 wt% foams, 1.4 wt% rubbers and 81.4 wt% thermoplastics where the major component was a polycarbonate (PC)/acrylonitrile-butadiene-styrene (ABS) blend. The separation of the thermoplastic scraps was performed using the sink-float process in water and salt solution. The impact modification of all housing containing six thermoplastic parts was carried out by the addition of a polyolefin elastomer called as the functionalized polyethylene (PE). Unprinted glass fiber reinforced epoxy circuit boards were size reduced and pulverized using the knife mill and hammer mill. The ground epoxy circuit boards were then classified with a set of testing sieves using Gyro sifter, and their mean diameters were calculated by means of particle size distribution analysis. Izod impact strengths at two temperatures, tensile tests, scanning electron microscopy (SEM) on the fracture surfaces, and dynamic mechanical spectroscopy were performed to characterize the alloys and mixtures compounded by a batch mixer and a twin screw extruder.

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-G05-06
Copyright
Copyright © Materials Research Society 2006

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