hosted by Eric R. Larson
some thoughts on selecting plastic materials for the lowest possible manufacturing cost
co-polyester block elastomers are unique materials with some very interesting properties.
better known by the tradename Noryl®, modified PPO is an important engineering material.
polyethylene has good mechanical properties, great chemical resistance, is low in cost, and is easy to process. BTW, it is also the world’s most widely used thermoplastic material (I wonder why?)
polypropylene (PP) offers reasonably good mechanical properties, and provides exceptional chemical resistance at a relatively low cost.
acrylic is a term used to describe a family of plastics technically known as polyacrylates. one of the most important is polymethyl methacrylate (PMMA), better known by the tradename Plexiglas®.
incredibly tough and durable, polycarbonate is a “go to” engineering material, suitable for a wide variety of applications.
ABS is a primary engineering material, suitable for a wide variety of structural applications. It offers a balance of properties, with good strength, good stiffness, good toughness, all at a reasonably low cost.
thermoplastic polyesters are high performance materials with extraordinary properties. while they require special handling, they offer distinct advantages to the design engineer.
stiff and strong, yet ductile and easy to machine. acetal is a unique engineering material that is often overlooked by most design engineers.
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