PROCESSED FLY ASH AS A FILLER IN PLASTICS

摘要

Fly ash generated from low NOX burners at American Electric Power's Glen Lyn facility was beneficiated to remove residual carbon, magnetic particles, and cenospheres. The clean fly ash has a mean particle size of about 30 microns. The clean fly ash is classified to separate the clean fly ash into its coarse and fine fractions. The resulting fine fraction has a mean particle size of less than about 10 microns. The clean fine ash is coated with a silane coupling agent and added to polypropylene, low density polyethylene, and high density polyethylene at various levels. These mixtures are in turn used to make articles by injection molding.