To provide a moisture absorbing/releasing sheet and a moisture absorbing/releasing structure which maintain extremely high moisture absorbing/releasing performance without damaging the excellent moisture absorbing/releasing characteristics of amorphous aluminum silicate, are less degraded in the moisture absorbing/releasing performance by use over a long period of time, and are incombustible, and to provide a method of manufacturing them.
The moisture absorbing/releasing sheet and the moisture absorbing/releasing structure include the amorphous aluminum silicate whose Si/Al is 0.7-1.0 and which has a peak near -78 ppm and -87 ppm in a 29Si solid NMR spectrum and water-soluble silicate. Further, the moisture absorbing/releasing sheet and the moisture absorbing/releasing structure carry hygroscopic salt. Also, in the method of manufacturing the moisture absorbing/releasing sheet and the moisture absorbing/releasing structure, a sheet and a honeycomb-shaped structure carrying the amorphous aluminum silicate and the water-soluble silicate are fired at a firing temperature of 920°C or lower.
FUJITA REI
KITO MASATOSHI
SUZUKI MASAYA
TSUKIMURA KATSUHIRO
NAT INST OF ADVANCED IND SCIEN
Koshiro Tsukuda
Fusayuki Saito
Hidemi Kawada