Self-Healing Materials Based on Disulfide Links
Self-Healing Materials Based on Disulfide Links
复制标题
DOI：
10.1021/ma2001492
复制
发表时间：
2011-04-26
期刊：
影响因子：
5.5
通讯作者：
Klumperman, Bert
中科院分区：
文献类型：
--
作者：
Canadell, Judit;Goossens, Han;Klumperman, Bert
损伤的自主愈合是生物体中的常见现象，但在合成材料中几乎从未遇到过。二硫化物化学用于在共价交联的橡胶中引入自修复能力。在中等温度下，切口会自动愈合，并导致机械性能完全恢复。这一结果是通过在网络中引入能够交换的二硫化物基团来实现的，从而导致跨受损表面的交联的更新。愈合过程可以重复多次。其独特的自修复性能和对各种聚合物的适用性相结合，使这种方法成为涂料的理想选择。
Autonomous healing of damage is a common phenomenon in living organisms but is hardly ever encountered in synthetic materials. Disulfide chemistry is used to introduce a self-healing ability in a covaleritly cross-linked rubber. Autonomous healing of a cut takes place at moderate temperatures and leads to full recovery of mechanical properties. This result is achieved by introducing disulfide groups in the network that are able to exchange, leading to renewal of cross-links across the damaged surfaces. The healing process can be repeated many times. The combination of their unique self-healing properties and applicability for a large variety of polymers makes this approach ideal for coatings.