Injection Molding Competition
Competition will always exist among processes and among materials as they vie for their share of the worldwide market. For over a century plastics have successfully competed with other materials (steel, aluminum, wood, etc.) in both old and new applications, providing cost and performance advantages. In fact within the plastics industry itself different plastics compete against each other. There are many examples, including thermoplastic elastomers versus thermoset rubbers and clear film LLDPE versus LDPE and PVC. This competition will continue and expand as is evident by the new plastics being developed. New material developments have been made with, for example, the metallocene catalyst systems (Chap. 6) of DuPont. This iron and cobalt single-site catalyst system can make HDPE with higher melting points while incorporating adhesion and enhanced barrier performance as well.
KeywordsImpact Strength Injection Molding Mold Cavity Compression Molding Product Liability
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