RECYCLING OF XEROGRAPHIC TONERS

摘要

The objective of this research is to find ecologically and economically acceptable routes to utilize excess xerographic toner from manufacturing and returned toner cartridges. This black toner is a polymer composite comprised of a styrene-based copolymer, carbon black and other additives. The mechanical properties of toners are specifically designed to allow attrition to 10-20 μm particles. Thus the bulk mechanical properties are not desirable for load bearing applications typical of consumer plastics. Reactive and non-reactive blending of toner with other polymers have been used to enhance the mechanical properties. The blends and alloys produced exhibit a transition from brittle to ductile behavior as exhibited by impact energy data. Thus a family of polymeric systems of variable properties versus cost compromise can be created.