Gypsum plaster board and preparation method thereof

The invention belongs to the technical field of gypsum boards, and particularly relates to a gypsum plaster board and a preparation method thereof. The gypsum plaster board is prepared from the following components in parts by weight: 60 to 70 parts of desulfurized gypsum, 5 to 15 parts of basalt fiber, 1 to 5 parts of sepiolite fiber, 5 to 10 parts of modified starch, 3 to 7 parts of modified APAO emulsion, 0.1 to 0.5 part of composite foaming agent, 0.03 to 0.05 part of retarder, 0.1 to 0.5 part of water reducing agent, 50 to 75 parts of water and surface protecting paper. The gypsum board prepared by the invention has the properties of high strength, high toughness and water resistance, and the paper surface has no opening condition in the transportation process under the condition of long-time high temperature or low temperature (extreme temperature). 本发明属于石膏板技术领域，具体涉及一种纸面石膏板及其制备方法。本发明的纸面石膏板，按重量份数计包括如下组分：脱硫石膏60-70份、玄武岩纤维5-15份、海泡石纤维1-5份、改性淀粉5-10份、改性APAO乳液3-7份、复合发泡剂0.1-0.5份、缓凝剂0.03-0.05份、减水剂0.1-0.5份、水50-75份