| 摘要 |
PROBLEM TO BE SOLVED: To provide an adhesive member having relatively strong direction dependency with respect to adhesion power.SOLUTION: There is provided an adhesive member 201 adhering to an adherend 203 by power between surfaces. Strain energy release percentage at a first detachment location 207 of an adhesive member is G1and adhesive energy at the first detachment location is Δγ1when power 209 is applied in a first direction 205 parallel to an adhesive surface 202. Strain energy release percentage at a second detachment location 208 of the adhesive member is G2and adhesive energy at the second detachment location is Δγ2when power 210 having the same size as power applied in the first direction is applied in a second direction 206 which is opposite direction from the first direction. Elastic modulus and/or poisson ratio of the adhesive member is made ununiform so as to satisfy G1/Δγ1≠G2/Δγ2.SELECTED DRAWING: Figure 2 |
