No more adhesives.
Use of more metals, which are more easily recycleable than plastics.
Use of plastics families, rather than chemically disparate plastics, such as aromatic-based and olefin-based.
More snap fits.
Clear markings indicating types of plastic used.
“Our view of design for disassembly is very much as it is for the design for assembly,” says Winston A. Knight, professor of industrial and systems engineering at the University of Rhode Island and author of several books on industrial design. “If you concentrate on simplifying the overall product by reducing the number if parts then this has just as much impact on disassembly as it does on assembly.”
Recycled polyethylene from HP printer cartridges is compounded with glass fiber, recycled polyethylene terephthalate (PET) from soda bottles and other materials into a plastic that replaces polycarbonate on a piece that holds the light source on optical scanners. “The structural stability of that piece is very important for optical clarity,” say’s HP’s Frey. It’s not only a good environmental move; the cost of the new compound is less than PC. The recycled material is referred to as RPET.
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