Provided is a piezoelectric laminated film which does not discolor even under a high-temperature and high-humidity environment. The piezoelectric laminated film includes a piezoelectric film and a transparent adhesive sheet satisfying the following Condition 1. Condition 1: when volatile components obtained from a test piece per 1 cm2 that has been held at 85° C. for 90 minutes are subjected to solid-phase microextraction, adsorbed onto a fiber coated with polydimethylsiloxane, and analyzed by a gas chromatography mass spectrometer, a total amount of organic substances detected after a retention time of 3 minutes is 50 μg or less in terms of weight of 2,2′-azobis(isobutyronitrile).
PIEZOELECTRIC LAMINATED FILM AND METHOD FOR PRODUCING PIEZOELECTRIC LAMINATED FILM
27.06.2024
Patent
Elektronische Ressource
Englisch
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