Rational Design of Self-Healing Tough Hydrogels: A Mini Review.
Rational Design of Self-Healing Tough Hydrogels: A Mini Review.
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DOI：
10.3389/fchem.2018.00497
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发表时间：
2018
影响因子：
5.5
通讯作者：
Zeng H
中科院分区：
文献类型：
--
作者：
Wang W;Narain R;Zeng H
水凝胶是三维交联的聚合物网络，可以吸收和保留大量的水。作为具有可调化学、物理和生物特性的代表性软材料，水凝胶具有不同的功能，在组织工程和软机器人等领域得到了广泛的应用。然而，传统的水凝胶力学性能较弱，在机械力作用下容易变形或损坏。损伤的累积可能导致水凝胶的永久性结构变化和功能特性的丧失。因此，为了延长其在各种应用中的使用寿命，开发具有自主自愈特性的机械坚固的水凝胶是很重要的。在这篇综述中，我们重点讨论了水凝胶网络的适当分子设计，以实现自修复和优异的力学性能，以及相应的自修复和增韧机制。最后，我们对该领域的剩余挑战以及对未来发展的建议进行了展望。
Hydrogels are three-dimensional cross-linked polymer networks which can absorb and retain large amount of water. As representative soft materials with tunable chemical, physical and biological properties, hydrogels with different functions have been developed and utilized in a broad range of applications, from tissue engineering to soft robotics. However, conventional hydrogels usually suffer from weak mechanical properties and they are easily deformed or damaged when they are subjected to mechanical forces. The accumulation of the damage may lead to the permanent structural change and the loss of the functional properties of the hydrogels. Therefore, it is important to develop mechanically robust hydrogels with autonomous self-healing property in order to extend their lifespan for various applications. In this mini review, we focus on the discussion about the appropriate molecular design of the hydrogel network for achieving self-healing and excellent mechanical properties, respectively as well as the corresponding self-healing and toughening mechanisms. We conclude with perspectives on the remaining challenges in the field as well as the recommendations for future development.
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DOI：
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发表时间：
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期刊：
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