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Eggshell Nanoparticles Are Missing Ingredient

机译:蛋壳纳米颗粒缺少成分

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Eggshells are both marvels and afterthoughts. Placed on end, they are as strong as the arches supporting ancient Roman aqueducts. Yet, they readily crack in the middle and, once that happens, we discard them without a second thought. However, researchers at Tuskegee (Ala.) University have found that adding tiny shards of eggshell to bioplastic could create a flrst-of-its-kind biodegradable packaging material that bends but does not break easily. Worldwide, manufacturers produce about 300,000,000 tons of plastic annually. Almost 99% of it is made with crude oil and other fossil fuels. Once it is discarded, petroleum-based plastics can last for centuries without breaking down. If burned, these plastics release carbon dioxide into the atmosphere, which can contribute to global climate change.
机译:蛋壳既是奇迹,也是事后的想法。它们放置在末端,就像支撑古代罗马渡槽的拱门一样坚固。但是,它们很容易在中间裂开,一旦发生,我们便不加考虑就丢弃了它们。但是,阿拉巴马州塔斯基吉大学的研究人员发现,在生物塑料中添加微小的蛋壳碎片可能会产生一种首屈一指的可生物降解包装材料,这种包装材料会弯曲但不易破裂。在全球范围内,制造商每年生产约3亿吨塑料。其中将近99%由原油和其他化石燃料制成。一旦丢弃,石油基塑料可以持续使用多个世纪而不会分解。如果燃烧,这些塑料会将二氧化碳释放到大气中,这可能导致全球气候变化。

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    《USA today》 |2016年第2853期|10-11|共2页
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