Gypsum plaster board and preparation method thereof

The invention relates to a gypsum plaster board and a preparation method thereof. The gypsum plaster board comprises a layer A, a layer B and a layer B from top to bottom, wherein the layer A is prepared from the following raw materials in parts by weight: 100 parts of desulfurized gypsum clinker, 5...

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Bibliographische Detailangaben
Hauptverfasser: WANG YING, TAN DANJUN, YIN DONGJIE
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to a gypsum plaster board and a preparation method thereof. The gypsum plaster board comprises a layer A, a layer B and a layer B from top to bottom, wherein the layer A is prepared from the following raw materials in parts by weight: 100 parts of desulfurized gypsum clinker, 50-75 parts of water, 0.02-0.1 part of glass fiber, 0.1-2 parts of a foaming agent, 0.05-0.5 part of a retarder, 0.2-2 parts of starch and 0.01-0.5 part of a water reducing agent; the layer B is prepared from the following raw materials in parts by weight: 100 parts of desulfurized gypsum clinker, 60 to 80 parts of water, 0.5 to 5 parts of silicon dioxide aerogel particles, 10 to 30 parts of reinforced emulsion, 0.05 to 0.2 part of glass fiber, 0.2 to 1 part of retarder and 0.2 to 1 part of starch. Silicon dioxide aerogel particles are wrapped in emulsion to prepare middle-layer gypsum slurry, and glass fibers and other components are added into the upper-layer gypsum slurry and the lower-layer gypsum slurry, so tha