In a previous paper (Zhang et al., 2020), we have demonstrated an adhesive of high fatigue threshold $\sim$300 J/m² using an as-prepared hydrogel of long-chain polymer network. In most applications, however, hydrogel adhesives are in contact with water. The long-chain hydrogel swells and reduces the fatigue threshold. Here we demonstrate a type of swell-tolerant and fatigue-resistant hydrogel adhesive: a long-chain polymer network in topological entanglement with short-chain microgels. The short-chain microgels restrict swell, and the long-chain network retains the high fatigue threshold. After the hydrogel adhesives swell in water to equilibrium, the fatigue threshold is 61 J/m${}^2$ for an adhesive of a long-chain network without microgels, and is 262 J/m² for an adhesive of a long-chain network with microgels.

在以前的论文中（Zhang等，2020），我们已经证明了具有高疲劳阈值的胶粘剂。 $〜$使用制备好的长链聚合物网络水凝胶，可达到300 J / m ²。然而，在大多数应用中，水凝胶粘合剂与水接触。长链水凝胶溶胀并降低了疲劳阈值。在这里，我们演示了一种耐溶胀和抗疲劳的水凝胶粘合剂：与短链微凝胶在拓扑缠结中的长链聚合物网络。短链微凝胶限制膨胀，而长链网络保留高疲劳阈值。水凝胶粘合剂在水中溶胀至平衡后，疲劳阈值为61 J / m${}^2$对于没有微凝胶的长链网络粘合剂来说，为262 J / m ^2；对于没有微凝胶的长链网络粘合剂来说，为262 J / m ²。