title: Reactive processing of recycled polycarbonate/acrylonitrile butadiene styrene.
abstract: Cellular phone housings were ground to make original particulates using a knife mill. Foams and adhesives with a lighter density than water were removed from ground mixtures using a sink-float process in water; ground metals, button rubbers, and wires were separated from desired materials by using a sink float process in salt All housing materials, consisting of seven thermoplastics included in cellular phone housings, showed better tensile properties than pure housing materials made of polycarbonate/acrylonitrile butadiene styrene, but they only had about half of the impact strength. In contrast, the low impact strength for all housing materials was improved by adding 25 wt % polyethylene elastomer and/or 2.4 wt % ground epoxy circuit boards for batch mixing. Impact strengths, tensile strengths, and the energy absorption ability of all housing materials were improved by adding 5.4wt% glycidyl methacrylate for twin screw extrusion.
authors.affiliation: Nano Materials R&D, Thermolon Korea, Ltd., 16th Floor, Cangen Tower, 6-ga 12, Jungang-dong, Jung-gu, Busan 614-714, Korea.
authors.forename: Woo-Hyuk
authors.initials: WH
authors.lastname: Jung
authors.forename: Yeon-Sil
authors.initials: YS
authors.lastname: Choi
authors.forename: Jung-Min
authors.initials: JM
authors.lastname: Moon
authors.forename: Nathan
authors.initials: N
authors.lastname: Tortorrela
authors.forename: Charles L
authors.initials: CL
authors.lastname: Beatty
authors.forename: Jang-Oo
authors.initials: JO
authors.lastname: Lee
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D002070:Butadienes / Q000737:chemistry*; D003247:Conservation of Natural Resources; D008855:Microscopy, Electron, Scanning; D011076:Polycarboxylate Cement / Q000737:chemistry*; D011137:Polystyrenes / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013718:Tensile Strength
chemical_list: D000180:Acrylic Resins; D002070:Butadienes; D011076:Polycarboxylate Cement; D011137:Polystyrenes; C005506:polycarbonate; C024636:ABS resin