Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
MAGNETIC GYPSUM COMPOSITION, MAGNETIC GYPSUM BOARD, AND CONSTRUCTING METHOD USING MAGNETIC GYPSUM COMPOSITION
To provide a gypsum board secured in thermal insulation properties and sound insulation properties, preventing rusts on a surface layer thereof from occurring, and adsorbing a permanent magnet thereon, by arranging a magnetic gypsum layer on one surface or both surfaces of the gypsum board, wherein the magnetic gypsum layer is formed with a composition in which a mixed powder mainly comprising an iron powder and a zinc powder, both having a specific average particle diameter and a specific part by weight, is dispersed in a gypsum binder.SOLUTION: A magnetic gypsum layer is formed with a composition in which a mixed powder mainly comprising 100 pts.wt. of iron powder having an average particle diameter of 20 μm or more and 5-30 pts.wt. of zinc powder having an average particle diameter of 2 μm or more but 1/10 or lower the average particle diameter of the iron powder is dispersed in a gypsum binder. The magnetic gypsum layer is arranged on one surface or both surfaces of the gypsum board. The iron powder is a reduced iron powder, the weight of iron powder being 2-6 times the weight (in terms of half-water gypsum) of the gypsum binder. At least one magnetic powder selected from the group consisting of a hard ferrite powder, soft ferrite powder, and triiron tetraoxide powder may be added in the composition.SELECTED DRAWING: Figure 1
【課題】特定の平均粒子径と特定の重量部をもつ鉄粉及び亜鉛粉とを主成分とする混合粉体を石こうバインダーに分散した組成物からなる磁性石こう層を、石こうボードの片面又は両面に具備することにより、断熱性や遮音性を確保すると共に、表面層の錆が抑制され且つ永久磁石が吸着する石こうボードを提供する。【解決手段】平均粒子径が２０μｍ以上の鉄粉１００重量部と、平均粒子径が２μｍ以上かつ前記鉄粉の平均粒子径の１／１０以下の亜鉛粉５〜３０重量部とを主成分とする混合粉体を石こうバインダーに分散した組成物からなる磁性石こう層が、石こうボードの片面又は両面に具備されている。鉄粉は還元鉄粉、鉄粉の重量は石こうバインダーの重量（半水石こう換算）の２〜６倍とする。組成物はハードフェライト粉、ソフトフェライト粉、四三酸化鉄粉の群から選ばれる１種または複数の磁性粉が添加されても良い。【選択図】図１
MAGNETIC GYPSUM COMPOSITION, MAGNETIC GYPSUM BOARD, AND CONSTRUCTING METHOD USING MAGNETIC GYPSUM COMPOSITION
To provide a gypsum board secured in thermal insulation properties and sound insulation properties, preventing rusts on a surface layer thereof from occurring, and adsorbing a permanent magnet thereon, by arranging a magnetic gypsum layer on one surface or both surfaces of the gypsum board, wherein the magnetic gypsum layer is formed with a composition in which a mixed powder mainly comprising an iron powder and a zinc powder, both having a specific average particle diameter and a specific part by weight, is dispersed in a gypsum binder.SOLUTION: A magnetic gypsum layer is formed with a composition in which a mixed powder mainly comprising 100 pts.wt. of iron powder having an average particle diameter of 20 μm or more and 5-30 pts.wt. of zinc powder having an average particle diameter of 2 μm or more but 1/10 or lower the average particle diameter of the iron powder is dispersed in a gypsum binder. The magnetic gypsum layer is arranged on one surface or both surfaces of the gypsum board. The iron powder is a reduced iron powder, the weight of iron powder being 2-6 times the weight (in terms of half-water gypsum) of the gypsum binder. At least one magnetic powder selected from the group consisting of a hard ferrite powder, soft ferrite powder, and triiron tetraoxide powder may be added in the composition.SELECTED DRAWING: Figure 1
【課題】特定の平均粒子径と特定の重量部をもつ鉄粉及び亜鉛粉とを主成分とする混合粉体を石こうバインダーに分散した組成物からなる磁性石こう層を、石こうボードの片面又は両面に具備することにより、断熱性や遮音性を確保すると共に、表面層の錆が抑制され且つ永久磁石が吸着する石こうボードを提供する。【解決手段】平均粒子径が２０μｍ以上の鉄粉１００重量部と、平均粒子径が２μｍ以上かつ前記鉄粉の平均粒子径の１／１０以下の亜鉛粉５〜３０重量部とを主成分とする混合粉体を石こうバインダーに分散した組成物からなる磁性石こう層が、石こうボードの片面又は両面に具備されている。鉄粉は還元鉄粉、鉄粉の重量は石こうバインダーの重量（半水石こう換算）の２〜６倍とする。組成物はハードフェライト粉、ソフトフェライト粉、四三酸化鉄粉の群から選ばれる１種または複数の磁性粉が添加されても良い。【選択図】図１
MAGNETIC GYPSUM COMPOSITION, MAGNETIC GYPSUM BOARD, AND CONSTRUCTING METHOD USING MAGNETIC GYPSUM COMPOSITION
磁性石こう組成物、磁性石こうボード及び磁性石こう組成物を用いた施工方法
MAEHASHI KIYOSHI (Autor:in) / ABE MASAHARU (Autor:in) / TSUDA ERI (Autor:in)
06.06.2019
Patent
Elektronische Ressource
Japanisch
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