Recycling Process for Cellular Phones and Surface Relief Grating » książka
Recycling Process for Cellular Phones and Surface Relief Grating
ISBN-13: 9783639098266 / Angielski / Miękka / 2008 / 176 str.
Cellular phone housing was ground to make original particulates using knife mill. Foams and adhesives with the lighter density than water were removed using sink-float process in water, and residual metals and wires were separated from desired materials composed of 7 thermoplastics using the sink-float process in salt. Improved impact strength and high tensile strength of the polymer mixture were achieved by adding glycidyl methacrylate by reactive process. Aniline-based azopolymers were synthesized with N, N-diglycidyl aniline and aniline reacted with amino benzonitrile or nitroaniline by azo coupling reactions. The precursors of epoxy-based azopolymers synthesized with diglycidyl ether of bisphenol A and aniline or 3-hydroxyl aniline were coupled with hydroxyl nitroaminobenzene. Polyurethane-based azopolymers synthesized by the reaction of toluene-2,4-diisocyanate with disperse orange 17 showed better diffractive efficiency than the epoxy- or aniline-based azopolymers with nitro group substituents
Cellular phone housing was ground to make original particulates using knife mill. Foams and adhesives with the lighter density than water were removed using sink-float process in water, and residual metals and wires were separated from desired materials composed of 7 thermoplastics using the sink-float process in salt. Improved impact strength and high tensile strength of the polymer mixture were achieved by adding glycidyl methacrylate by reactive process. Aniline-based azopolymers were synthesized with N,N-diglycidyl aniline and aniline reacted with amino benzonitrile or nitroaniline by azo coupling reactions. The precursors of epoxy-based azopolymers synthesized with diglycidyl ether of bisphenol A and aniline or 3-hydroxyl aniline were coupled with hydroxyl nitroaminobenzene. Polyurethane-based azopolymers synthesized by the reaction of toluene-2,4-diisocyanate with disperse orange 17 showed better diffractive efficiency than the epoxy- or aniline-based azopolymers with nitro group substituents.
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