Consider specialty compounds to take advantage of growing interest in molded liquid silicone rubber. Advantages of silicone rubbers include flexibility, thermal stability over a broad temperature range, resistance to solvents, and excellent biocompatibility. Silicones are increasingly being selected by design engineers for valve seats or hoses in autos and aircraft, where their resistance to solvents can be boosted through incorporation of fluorosilicones. Polyurethane is added to improve tear strength for some medical applications. New developments in specialty compounding were reviewed by Mary Krenceski, a research scientist at Extreme Molding in Watervliet, NY at Molding 2008.
Plastic bags can become useful as either raw materials for plastics or feedstock for fuel. It's when they're not recycled that they become a major problem. That's what California's bag ban will prevent.
NASA's JPL and Caltech have achieved the mind-boggling feat of 3D printing multiple metals in a single end-part, grading from one alloy to another. They've also developed a method for combining metals with carbon fiber composites in end-production parts.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.