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The vacuum thermal Solution processing waste PCB ( WPCB ) with respect to the existing mechanical physical method can achieve WPCB the separation and recovery of the advantages of the full composition (metals, organic polymer resin , an inorganic glass fiber material ) , and is therefore considered is the most promising approach . The vacuum pyrolysis WPCB Treatment of the metal recovery more utilization , while the glass fiber (GF) in WPCB Recycling very little . Therefore, this paper focuses on the vacuum pyrolysis residue , WPCB GF recycling . First, the use of self-designed vacuum pyrolysis unit WPCB vacuum the pyrolysis test and GF separation and purification of . Pyrolysis conditions affect the results of the pyrolysis , crushing conditions on the grain size distribution of the pulverized product , screening and winnowing copper removal and calcination conditions on GF purity . Determine the optimal parameters of the pyrolysis , the grain size distribution of the pyrolysis products , optimum calcination conditions of the copper removal conditions and non-metallic component . The final preparation of the more pure GF . Followed as a filler material prepared by the GF / polypropylene (PP) composites (GF / PP), a detailed study of the injection molding process conditions , GF surface modification conditions , the added amount of the PP grafted with maleic anhydride , GF dosage recovered GF and length of GF / PP performance . Determine the optimal injection molding process parameters , the best coupling agents , the best grafted PP added amount , the best GF amount and length . Under the optimum conditions , with the tensile strength compared to pure PP, GF / PP , flexural strength and impact strength were increased by 46%, 65 % and 82% , Vicat softening temperature reached 159.2 ° C , to improve 4.6 ° C . Finally, the use of scanning electron microscopy , melt index determination and differential scanning calorimetry , and other means , the characterization of GF / PP observe the morphology of the GF / PP cross section studies the GF / PP melt flow properties with GF content changes PP crystallization caused by the change of GF filled . The research results show that recovered from WPCB GF and to fill PP preparation of GF / PP composites is feasible and The GF can significantly enhance the performance of PP .
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