I wrote last year about the potential for growing use of wood-plastic composites in car design. Now comes word that bamboo-reinforced bioplastic may make its commercial debut in the interiors of Mitsubishi’s iMiEV Sport Air electric vehicle in 2010. Mitsubishi would not confirm the roll-out date, which has been rumored on car blogs. It’s no secret though tat Mitsubishi has been working on bamboo-reinforced bioplastic for at least four years. The Japanese OEM cuts bamboos into strips, removing the joints and then crushes them. Then hot steam is used to loosen the fibers, making it fit as a reinforcement. The bamboo will be reinforcing a novel bioplastic called PBS (polybutylene succinate) resins, which is derived from succinic acid and corn starch.
According to Mitsubishi’s tests, PBS/bamboo-fiber compound achieves an estimated 50% reduction in lifecycle carbon dioxide emissions over polypropylene. VOC (volatile organic compounds) levels are also reduced drastically over processed wood hardboards (roughly 85% in testing).
More and more robots are becoming more autonomous all the time. Now Lockheed Martin has completed a demo mission with two completely autonomous robotic vehicles performing resupply, reconnaissance, surveillance, and target acquisition.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Although plastics make up only about 11% of all US municipal solid waste, many are actually more energy-dense than coal. Converting these non-recycled plastics into energy with existing technologies could reduce US coal consumption, as well as boost domestic energy reserves, says a new study.
This year's Dupont-sponsored WardsAuto survey of automotive designers and other engineers shows lightweighting dominates the discussion. But which materials will help them meet the 2025 CAFE standards are not entirely clear.
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