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Edible water bottle : ウィキペディア英語版 | Edible water bottle In 2013 three London-based design students created an edible, blob-like water container called Ooho. Rodrigo García González, Guillaume Couche and Pierre Paslier of Skipping Rocks Lab introduced the biodegradable blob as a cheaper, more environmentally friendly alternative to single-serving plastic bottles. Their award-winning creation encloses a small volume of water in a membrane made from brown algae and calcium chloride.The Ooho manufacturing process is covered under a Creative Commons license, making the recipe readily available for anyone to use. == Traditional water containers == Over 50 billion single-use plastic water bottles made of polyethylene terepthalate (PET) are produced and discarded in the United States each year. According to the (National Association for PET Container Resources ), the recycling rate for PET has held steady at 31% since 2013. That equates to more than 4 billion pounds of unrecycled PET bottles in landfills, on roadsides and beaches, or in rivers and oceans. The properties that make PET useful as a packaging material (stability and durability) also make it resistant to breaking down after its useful life is over. Polyesters like PET can be broken down through hydrolytic degradation: the ester linkage is cut by a water molecule. The reaction proceeds differently in acidic or alkaline conditions, but works best at temperatures between 200 - 300 °C. Under environmental conditions the process is undetectably slow. PET is considered to be essentially non-biodegradable, with plastic bottles estimated to take as long as 450 years to decompose. Because of this, other packaging materials are being sought.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Edible water bottle」の詳細全文を読む
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