The Coca-Cola Co. is making impressive environmental improvements in its bottles. As reported here, Coke is the first company to introduce a beverage bottle made with recycled plastic. Earlier this year, Coca-Cola opened the world’s largest plastic bottle-to-bottle recycling plant in Spartanburg, SC. Now Coke has announced the “PlantBottle”, which is made from a blend of petroleum-based materials and up to 30 percent plant-based materials. The feedstock, presumably ethylene glycol via glucose, is made from sugar cane and molasses, a by-product of sugar production. Coca-Cola said it is also exploring the use of other plant materials for future generations of the bottle. A life-cycle analysis conducted by Imperial College London indicates the “PlantBottle” with 30 percent plant-base material reduces carbon emissions by up to 25 percent, compared with petroleum-based PET.
Another advantage to the “PlantBottle” is that, unlike other plant-based plastics, it can be processed through existing manufacturing and recycling facilities without contaminating traditional PET. Coca-Cola North America will pilot the “PlantBottle” with Dasani and sparkling brands in select markets later this year and with vitaminwater in 2010
“The ‘PlantBottle’ represents the next step in evolving our system toward the bottle of the future,” said Scott Vitters, director of Sustainable Packaging of Coca-Cola. “This innovation is a real win because it moves us closer to our vision of zero waste with a material that lessens our carbon footprint and is also recyclable.”
The company that brought you 3D-printed eyeglasses has launched both an improved clear polymer material for 3D printing optical components and a high-speed, precision, 3D-printing process for making small- and medium-sized batches in a few days.
We've found an amazing variety of robot hands & arms in medicine, space, and service robots, as well as R&D and assembly. Some are based on industrial designs modified for speed or dexterity, while others more closely emulate human movements, as well as human size and shape.
To give engineers a better idea of the range of resins and polymers available as alternatives to other materials, this Technology Roundup presents several articles on engineering plastics that can do the job.
The first photos made with a 3D-printed telescope are here and they're not as fuzzy as you might expect. A team from the University of Sheffield beat NASA to the goal. The photos of the Moon were made with a reflecting telescope that cost the research team £100 to make (about $161 US).
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