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).
A composite based on a high-performance PEEK-like resin we told you about two years ago when it was still in R&D has now been licensed by the US Naval Research Laboratory (NRL) for commercial manufacturing.
Microsoft, HP, Dassault, and other industry heavyweights in 3D printing have launched a new 3DP file format, 3MF. The consortium says the spec will more fully describe a 3D model and will be interoperable with multiple applications, platforms, services, and printers.
NASA's been working on several different ongoing projects for 3D-printed rocket engine components in metals and now it's reached another first in aerospace 3D printing: a full-scale, 3D-printed rocket engine component made of copper.
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