The biggest story in materials this year is sustainability. Producers and users alike are looking for plastics made from feedstocks that are not as environmentally damaging as petroleum. I’ve written extensively on ambitious programs in Japan as well as the major DuPont initiative. Now comes another big story: Dow Chemical Co. is building a world-scale polyethylene plant in Brazil using sugarcane-based ethanol as the feedstock. Dow’s partner is Crystalev, a major Brazilian ethanol producer. Expected to begin production in 2011, the facility will have a capacity of 350,000 metric tons annually.
This is a positive development on many fronts. Most importantly, sugar cane is a much more efficient source of biofeedstock than corn, which is used in North America. In fact, sugarcane is eight times more efficient as a feedstock than corn. Widespread use of corn as a plastic or fuel material also puts stress on global food supplies. It also makes no sense from an environmental perspective, given the amount of petroleum required to make ethanol.
On a molecular level, the new sugarcane-based material will be identical to current high-grade PE products made by Dow around he world from petroleum. In other words, it will be a drop-in replacement for applications including pipe, film, membranes and packaging. The new material will also be fully recyclable using current infrastructure. Dow also made pains to point out the new plant will not be built in a rainforest.
A tiny humanoid robot has safely piloted a small plane all the way from cold start to takeoff, landing and coming to a full stop on the plane's designated runway. Yes, it happened in a pilot training simulation -- but the research team isn't far away from doing it in the real world.
Some in the US have welcomed 3D printing for boosting local economies and bringing some offshored manufacturing back onshore. Meanwhile, China is wielding its power of numbers, and its very different relationships between government, education, and industry, to kickstart a homegrown industry.
You can find out practically everything you need to know about engineering plastics as alternatives to other materials at the 2014 IAPD Plastics Expo. Admission is free for engineers, designers, specifiers, and OEMs, as well as students and faculty.
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