A major benefit of the material is its biodegradability.Plastic’s toughness and flexibility represented a revolution in materials science during the 1950s and 60s.Decades later,however,plastics very durability(耐用性) is raising questions about how appropriate it is for one-time products such as plastic bags,or short-lived consumer goods,used in the home for a few years and then cast into a landfill where they will degrade for centuries.What is the point of making something that lasts 1,000 years?
Shrilk not only will degrade in a landfill, but its basic components are used as fertilizer (肥料), and so will enrich the soil.
Shrilk has great potential,the inventors said.Materials from which it is made are plentiful in nature,found in everything ranging from shrimp shells,insect bodies to living plants.That makes shrilk low cost,and its mass production possible should it be used for products demanding a lot of material.
Work on shrilk is continuing in the lab.The inventors said the material becomes flexible when wet,so theyre exploring ways to use it in wet environments.They’re also developing simpler production processes,which could be used for non-medical products,like for computer cases and other products inside the home.Theyre even exploring combining it with other materials like carbon fibers,to give it new properties.
【语篇导读】 本文是一篇说明文。文章主要介绍了一种在将来某一天可能会替代塑料的环保材料。这种材料的原材料在大自然中很容易获得,
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