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Self-healing Rubber

机译:自愈橡胶

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Rubber bands may stretch to several times their initial size and snap back into their original shape, but if they are cut or broken, they cannot reseal -unless they are made of a new type of rubber developed by French researchers. Instead of using the chemically linked long-chain molecules found in traditional rubbers, Ludwik Leibler and his colleagues at the Centre National de la Recherche Scientifique in Paris thought they could make stretchy materials from much smaller building blocks that associate with each other in a network. They started with fatty acids, the chemicals found in vegetable oils, and joined them to other molecules. In the resulting mixture, each molecule has two or three sticking points that allow it to connect reversibly to other molecules in the system.
机译:橡皮筋可能会拉伸到其初始尺寸的几倍,并恢复为原始形状,但是如果将其切割或折断,它们将无法重新密封-除非它们由法国研究人员开发的新型橡胶制成。巴黎国家化学中心的卢德维克·莱布利尔(Ludwik Leibler)和他的同事们没有使用传统橡胶中的化学键合的长链分子,而是认为它们可以用相互连接的,体积更小的建筑材料制造可拉伸的材料。他们从脂肪酸(植物油中发现的化学物质)开始,然后将它们与其他分子结合在一起。在生成的混合物中,每个分子都有两个或三个粘着点,使它们可逆地连接到系统中的其他分子。

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