Controllable peeling is one of the core requirements of the adhesive applications needing high-precision detachment. In this paper, the peeling of an elastic strip on a viscoelastic substrate is analyzed theoretically focusing on the controllability of the peeling process, especially the interfacial detaching speed. The effects of the speed dependence of the work of adhesion, the substrate viscoelastic property and the peeling angle on the controllability of the detaching speed are systematically explored. Assuming a constant work of adhesion, the controllable detaching speed range is strongly limited and the maximum controllable speed is independent on the zero-frequency/high-frequency modulus ratio of the substrate as well as the peeling angle. The controllable detaching speed range can be substantially enlarged when a speed dependent work of adhesion is considered, which indicates a great improvement of the controllability of peeling and is of particular significance to applications needing quick detachment. The tunability of the controllable detaching speed range is also significantly improved when considering the speed dependence of the work of adhesion that the maximum controllable speed can be effectively tuned through modulating the viscoelasticity of the substrate as well as the peeling angle. The results presented here help to comprehensively understand the influences of the material properties and loading parameters on the peeling of an elastic strip on a viscoelastic substrate, which can be exploited to precisely control the peeling process in various applications needing high-precision detachment.

可控剥离是需要高精度剥离的粘合剂应用的核心要求之一。本文从理论上分析了弹性条在粘弹性基材上的剥离，重点关注剥离过程的可控性，尤其是界面剥离速度。系统地探讨了粘附功的速度依赖性、基材粘弹性能和剥离角度对剥离速度可控性的影响。假设粘附功恒定，可控剥离速度范围受到很大限制，最大可控速度与基材的零频/高频模量比以及剥离角度无关。考虑到附着力的速度相关功，可大幅度扩大剥离速度可控范围，这表明剥离的可控性有了很大的提高，对需要快速剥离的应用具有特别重要的意义。当考虑到粘附功的速度依赖性时，可控剥离速度范围的可调性也得到显着改善，通过调节基材的粘弹性和剥离角度可以有效地调整最大可控速度。这里给出的结果有助于全面了解材料特性和加载参数对弹性条在粘弹性基材上剥离的影响，