AIR-CONDITIONING MATERIAL EXHIBITING EXCELLENT WATER ABSORPTION BEHAVIOR AT HIGH-HUMIDITY

摘要

PROBLEM TO BE SOLVED: To provide an air-conditioning material which exhibits an excellent water absorption behavior under high-humidity conditions, adsorbs water vapor in an amount of about 200% or higher of its own weight under high humidity conditions of a relative humidity of 90% or higher, can release the most part of adsorbed water vapor under normal humidity conditions of a relative humidity of 90% or lower, and can be repeatedly used.;SOLUTION: This air-conditioning material comprises hollow fibrous aluminum silicate having minute mesopores with a pore radius lower than 5 nm. The method for producing an air-conditioning material exhibiting excellent adsorption behavior under high-humidity conditions comprises subjecting hollow fibrous aluminum silicate synthesized under weakly acidic conditions to hydrothermal synthesis, adding an alkali to the silicate to coagulate a gelatinous substance of the silicate, and drying the silicate at such a temperature as not to thermally decompose the fibers while utilizing a specific solid shape formed by the coagulation.;COPYRIGHT: (C)2002,JPO