ADHESIVE MEMBER

摘要

Provided is an adhesive member whose adhesive force has relatively strong directional dependency. Specifically, provided is an adhesive member, which is configured to adhere to an adherend through an intersurface force, wherein when a strain energy release rate is defined as G1c and G2c and an adhesive energy is defined as Δγ1c and Δγ2c respectively, the Δγ1c and the Δγ2c differ from each other so that G1c/Δγ1c≠G2c/Δγ2c is satisfied.

主权项

1. An adhesive member, which is configured to adhere to an adherend through an intersurface force, wherein when a strain energy release rate at a first peeling site of the adhesive member and an adhesive energy at the first peeling site in a case where a force is applied in a first direction parallel to an adhesive surface thereof are defined as G1c and Δγ1c, respectively, and a strain energy release rate at a second peeling site of the adhesive member and an adhesive energy at the second peeling site in a case where a force having the same magnitude as that of the force applied in the first direction is applied in a second direction opposite to the first direction are defined as G2c and Δγ2c, respectively, the Δγ1c and the Δγ2c differ from each other so that G1c/Δγ1c≠G2c/Δγ2c is satisfied.