科研人员巧妙设计材料结构，制备的复合材料在零下60摄氏度下情况依然能够实现自修复愈合。参考文献如下：
Sustainable self-healing at ultra-low temperatures in structural composites incorporating hollow vessels and heating elements,
Yongjing Wang, Duc Truong Pham, Zhichun Zhang, Jinjun Li, Chunqian Ji, Yanju Liu, Jinsong Leng，
Published 14 September 2016.DOI: 10.1098/rsos.160488
Abstract
Self-healing composites are able to restore their properties automatically. Impressive healing efficiencies can be achieved when conditions are favourable. On the other hand, healing might not be possible under adverse circumstances such as very low ambient temperature. Here, we report a structural composite able to maintain its temperature to provide a sustainable self-healing capability—similar to that in the natural world where some animals keep a constant body temperature to allow enzymes to stay active. The composite embeds three-dimensional hollow vessels with the purpose of delivering and releasing healing agents, and a porous conductive element to provide heat internally to defrost and promote healing reactions. A healing efficiency over 100% at around −60°C was obtained. The effects of the sheets on the interlaminar and tensile properties have been investigated experimentally. The proposed technique can be implemented in a majority of extrinsic self-healing composites to enable automatic recovery at ultra-low temperatures.
微信回复“自修复”可阅读更多。