Injection Molding with Recycled Polypropylene from Shredder Residue Into a Structural Support Battery Bracket

摘要

A new, commercially viable method for recovering plastics from shredder residue has been developed for processing shredder residue. Salyp NV located in Belgium, Europe developed this technology and equipment needed to process shredder residue, and 21st Century Polymers & Associates is the exclusive agent to market and sell Salyp's equipment and technology in North America. This process leads the way for metal recyclers to create a low cost high volume stream of recycled plastics that can be re-used in automotive and durable goods industries at significant cost savings compared to virgin plastics. One of the plastics that can be recovered using the Salyp process is polypropylene. 21st Century, working with Mayco Plastics, compounded this material, tested and trial-molded a production part application. Because of the structural requirements on the selected production part, glass fibers were added in the injection molding process to enhance the physical properties. This process is also required with the virgin plastic material application. An explanation of Salyp's technology, equipment and processes, together with the molding trial of a battery bracket using recycled plastics, is presented in this paper. The favorable economics of these processes will also be discussed.