Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Gypsum plaster board and preparation method thereof
The invention provides a gypsum plaster board which comprises a board core and surface protection paper. The raw materials of the board core comprise gypsum clinker and expanded silica gel. Raw materials of the board core can further comprise modified natural fibers, a binding agent, a dispersing agent, modified starch, a foaming agent and a water reducing agent. The preparation method of the expanded silica gel comprises the following steps of: calcining silica gel to prepare nanoscale silica gel microspheres; continuously and slowly heating and calcining the nanoscale silica gel microspheres; and cooling an obtained product to room temperature so as to obtain the expanded silica gel. The preparation method of the gypsum plaster board comprises the following steps of: uniformly stirring the modified starch, water, the gypsum clinker, the expanded silica gel, the modified natural fiber, the binder, the dispersing agent, the foaming agent and the water reducing agent to prepare gypsum slurry; pouring the gypsum slurry on the surface protection paper, performing lap joint, firm adhesion and forming to obtain a wet board; and making the wet board enter a drying machine after solidifying the wet board, and a dried wet board being the gypsum plaster board. The gypsum plaster board is low in density, excellent in strength and heat preservation performance, simple in preparation process and convenient to produce on a large scale.
本发明提供了一种纸面石膏板，包含板芯及护面纸，所述板芯的原料包含石膏熟料及膨胀硅胶。所述板芯的原料还可以包含改性天然纤维、粘结剂、分散剂、改性淀粉、发泡剂和减水剂。所述膨胀硅胶的制备方法为将硅胶凝胶煅烧制备纳米级硅胶微球，再继续缓慢升温煅烧，后冷却至室温即可。所述纸面石膏板的制备方法包括如下步骤：首先将改性淀粉、水、石膏熟料、膨胀硅胶、改性天然纤维、粘结剂、分散剂、发泡剂和减水剂搅拌均匀，制得石膏浆料；其次将石膏料浆浇筑在护面纸上，搭接粘牢成型，制成湿板；最后，待湿板凝固后，进入干燥机，经过干燥后的湿板即为纸面石膏板，该纸面石膏板密度低，并且强度及保温性能优良，制备工艺简单，便于大规模生产。
Gypsum plaster board and preparation method thereof
The invention provides a gypsum plaster board which comprises a board core and surface protection paper. The raw materials of the board core comprise gypsum clinker and expanded silica gel. Raw materials of the board core can further comprise modified natural fibers, a binding agent, a dispersing agent, modified starch, a foaming agent and a water reducing agent. The preparation method of the expanded silica gel comprises the following steps of: calcining silica gel to prepare nanoscale silica gel microspheres; continuously and slowly heating and calcining the nanoscale silica gel microspheres; and cooling an obtained product to room temperature so as to obtain the expanded silica gel. The preparation method of the gypsum plaster board comprises the following steps of: uniformly stirring the modified starch, water, the gypsum clinker, the expanded silica gel, the modified natural fiber, the binder, the dispersing agent, the foaming agent and the water reducing agent to prepare gypsum slurry; pouring the gypsum slurry on the surface protection paper, performing lap joint, firm adhesion and forming to obtain a wet board; and making the wet board enter a drying machine after solidifying the wet board, and a dried wet board being the gypsum plaster board. The gypsum plaster board is low in density, excellent in strength and heat preservation performance, simple in preparation process and convenient to produce on a large scale.
本发明提供了一种纸面石膏板，包含板芯及护面纸，所述板芯的原料包含石膏熟料及膨胀硅胶。所述板芯的原料还可以包含改性天然纤维、粘结剂、分散剂、改性淀粉、发泡剂和减水剂。所述膨胀硅胶的制备方法为将硅胶凝胶煅烧制备纳米级硅胶微球，再继续缓慢升温煅烧，后冷却至室温即可。所述纸面石膏板的制备方法包括如下步骤：首先将改性淀粉、水、石膏熟料、膨胀硅胶、改性天然纤维、粘结剂、分散剂、发泡剂和减水剂搅拌均匀，制得石膏浆料；其次将石膏料浆浇筑在护面纸上，搭接粘牢成型，制成湿板；最后，待湿板凝固后，进入干燥机，经过干燥后的湿板即为纸面石膏板，该纸面石膏板密度低，并且强度及保温性能优良，制备工艺简单，便于大规模生产。
Gypsum plaster board and preparation method thereof
一种纸面石膏板及其制备方法
LIU WENJUN (Autor:in) / CHEN HONGXIA (Autor:in) / ZHANG XIAOFEI (Autor:in) / GE JUNQIAO (Autor:in) / YANG XIAO (Autor:in) / ZHOU QUANGUANG (Autor:in) / RAN XIUYUN (Autor:in) / YANG ZHENGBO (Autor:in)
01.09.2020
Patent
Elektronische Ressource
Chinesisch
Composition for gypsum board, gypsum plaster board and preparation method of gypsum plaster board
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