COMPOSITON OF GYPSUM BOARD HAVING THE HUMIDIFYING FUNCTION

摘要

PURPOSE: A composition for humidity-control gypsum board is provided to secure hygroscopic performance by including 0.1cm^3/g or more pore volume of porous material. CONSTITUTION: A composition for humidity-control gypsum board comprises 5-30 parts by weight of porous material and 0.01-2 parts by weight of decomposer based on 100.0 parts by weight of gypsum board composition. The porous material has specific surface area of 50m/g and pore volume of 0.1cm/g or greater. The porous material is a mixture of 1type or 2types which are selected from activated clay, diatomaceous earth, zeolite, and bentonite. The decomposer is 1type which is selected from the following mixture: metallic deodorant, amide-based liquid decomposer, or a mixture thereof. The composition for humidity-control gypsum board additionally includes 1-10 parts by weight of strength enhancer based on 100.0 parts by weight of the composition for humidity-control gypsum board. The strength enhancer is 1kind which is selected from silica fume, fly ash, or a mixture thereof.