Polymer-filled macroporous hydrogel for low friction
Polymer-filled macroporous hydrogel for low friction
复制标题
DOI：
10.1016/j.eml.2020.100742
复制
发表时间：
2020-07-01
影响因子：
4.7
通讯作者：
Suo, Zhigang
中科院分区：
文献类型：
--
作者：
Mu, Ruojun;Yang, Jiawei;Suo, Zhigang
本文证明了填充有移动的聚合物链的大孔水凝胶显著降低摩擦。我们通过冷冻和解冻制备大孔水凝胶，将大孔水凝胶浸泡在移动的聚合物链的水溶液中，并将聚合物填充的大孔水凝胶相对于玻璃滑动。与具有或不具有移动的聚合物链的纯水凝胶和具有水（没有移动的聚合物链）的大孔水凝胶相比，聚合物填充的大孔水凝胶降低了摩擦。此外，聚合物填充的大孔水凝胶在长时间滑动后保持低摩擦。聚合物填充的大孔水凝胶模拟滑膜关节中孔和移动的聚合物之间的劳动分工。移动的聚合物链和大孔都有助于低摩擦。(C)2020爱思唯尔有限公司保留所有权利。
This paper demonstrates that macroporous hydrogels, filled with mobile polymer chains, markedly reduce friction. We fabricate a macroporous hydrogel by freeze and thaw, soak the macroporous hydrogel in an aqueous solution of mobile polymer chains, and slide the polymer-filled macroporous hydrogel against glass. The polymer-filled macroporous hydrogel reduces friction compared to a neat hydrogel with or without mobile polymer chains, and to a macroporous hydrogel with water (no mobile polymer chains). Furthermore, the polymer-filled macroporous hydrogel maintains low friction after long-time sliding. The polymer-filled macroporous hydrogel mimics a division of labor between the pores and mobile polymers in a synovial joint. Both the mobile polymer chains and the macropores contribute to low friction. (C) 2020 Elsevier Ltd. All rights reserved.