Theory of tack of pressure‐sensitive adhesive. II

Abstract

Abstract When a cylinder is pulled on a pressure‐sensitive adhesive, the bonding and debonding processes proceed simultaneously within the surface of contact. In the previous paper, the theory of rolling friction coefficient of pressure‐sensitive adhesives was proposed for the case where bonding occurs instantaneously. The theory is modified in this paper so as to include both the time‐dependent bonding process and debonding process at the same time. Effect of fiber‐forming on rolling friction is also examined. It is ascertained that the modified theory reproduces quite well the experimentally observed features of the curves of rolling friction coefficient against velocity.