A few days ago, the team of Zhang Lei and Yang Jing of Tianjin University successfully developed the "all-weather self-healing material", which has reached the international leading level of performance and can self-heal quickly under extreme conditions such as severe cold, deep sea and strong acid and alkali. Detector and "super electronic skin" of various high-tech equipment under extreme conditions. Related achievements have been published in the international authoritative journal Nature.
Self-healing materials are synthesized using advanced supramolecular technology. As the name suggests, it can imitate human skin tissue to self-repair without the help of external energy, and significantly improve the service life and safety of the material. However, existing self-healing materials do not perform well under extreme conditions, and urgently need to overcome the relevant technical bottlenecks.
In this regard, the team of Zhang Lei and Yang Jing used the hydrophilic groups and disulfide groups of different properties to successfully synthesize elastomer materials that can self-heal quickly under various extreme conditions. Experimental results show that this new type of self-healing material can heal quickly within 10 minutes at room temperature, and can withstand weights more than 500 times its own weight after healing. Under the low temperature of minus 40 degrees Celsius, super-cooled high-concentration salt water, and even in a strong acid and alkaline environment, it exhibits high-efficiency self-healing performance, which is called "all-weather" self-healing material.
"Next, we plan to apply the material to electronic skin sensors to allow robots in extreme environments to sense surface pressure, water flow, temperature, etc., to create a true'smart skin' for advanced electronic devices." Zhang Lei said.
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