| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminate that has a function as a piezoelectric element, wherein moisture degradation is prevented although an aliphatic polyester film is used as a piezoelectric material.SOLUTION: A laminate according to the present invention comprises a film (A) formed from aliphatic polyester-based resin, and a transparent conductive film (B) disposed on one side or both sides of the film (A). A water vapor transmittance of the transparent conductive film (B) at a temperature of 40°C and a humidity of 90%RH is lower than 45 g/m/day. |
