Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing water-resistant gypsum board
The invention discloses a method for preparing a water-resistant gypsum board. The method comprises the following steps: step 1, crushing gypsum, silica fume, borax, activated carbon and cement to obtain mixed powder; step 2, mixing the mixed powder obtained in the step 1 with a stearic acid emulsion, and conducting stirring and mixing to obtain an emulsion system A; step 3, adding aluminum oxide and hydroxypropyl methyl cellulose into the emulsion system A under a stirring condition, and continuing stirring after the aluminum oxide and the hydroxypropyl methyl cellulose are added so as to obtain an emulsion system B; step 4, adding polyacrylamide into the emulsion system B under a stirring condition, continuing stirring after the polyacrylamide is added, and performing natural cooling to room temperature; step 5, centrifugally separating the cooled system to obtain a water-resistant gypsum emulsion; step 6, spraying a release agent into a wallboard mold, pouring the waterproof gypsum emulsion into the wallboard mold, and successively conducting leveling, rolling at a temperature of 20-30 DEG C, and standing for 1-2 days; and step 7, drying the leveled wallboard mold, and carrying out demolding to obtain the water-resistant gypsum board.
本发明公开了一种制备耐水石膏板的方法，所述方法包括以下步骤：步骤一、将石膏、硅灰、硼砂、活性炭、水泥粉碎，得到混合粉体；步骤二、将步骤一所述混合粉体和硬脂酸乳液混合，搅拌混合，得到乳液体系A；步骤三、搅拌条件下，将氧化铝和羟丙基甲基纤维素加入到乳液体系A中，加入完毕继续搅拌，得到乳液体系B；步骤四、搅拌条件下，将聚丙烯酰胺加入到乳液体系B中，加入完毕后继续搅拌，自然冷却至室温；步骤五、将冷却后体系离心分离，得到耐水性石膏乳液；步骤六、向墙板模具中喷涂脱模剂，将耐水性石膏乳液浇筑到墙板模具中，校平，在20℃～30℃条件下滚压，静养1天～2天；步骤七、将校平后墙板模具烘干，脱模，得到耐水石膏板。
Method for preparing water-resistant gypsum board
The invention discloses a method for preparing a water-resistant gypsum board. The method comprises the following steps: step 1, crushing gypsum, silica fume, borax, activated carbon and cement to obtain mixed powder; step 2, mixing the mixed powder obtained in the step 1 with a stearic acid emulsion, and conducting stirring and mixing to obtain an emulsion system A; step 3, adding aluminum oxide and hydroxypropyl methyl cellulose into the emulsion system A under a stirring condition, and continuing stirring after the aluminum oxide and the hydroxypropyl methyl cellulose are added so as to obtain an emulsion system B; step 4, adding polyacrylamide into the emulsion system B under a stirring condition, continuing stirring after the polyacrylamide is added, and performing natural cooling to room temperature; step 5, centrifugally separating the cooled system to obtain a water-resistant gypsum emulsion; step 6, spraying a release agent into a wallboard mold, pouring the waterproof gypsum emulsion into the wallboard mold, and successively conducting leveling, rolling at a temperature of 20-30 DEG C, and standing for 1-2 days; and step 7, drying the leveled wallboard mold, and carrying out demolding to obtain the water-resistant gypsum board.
本发明公开了一种制备耐水石膏板的方法，所述方法包括以下步骤：步骤一、将石膏、硅灰、硼砂、活性炭、水泥粉碎，得到混合粉体；步骤二、将步骤一所述混合粉体和硬脂酸乳液混合，搅拌混合，得到乳液体系A；步骤三、搅拌条件下，将氧化铝和羟丙基甲基纤维素加入到乳液体系A中，加入完毕继续搅拌，得到乳液体系B；步骤四、搅拌条件下，将聚丙烯酰胺加入到乳液体系B中，加入完毕后继续搅拌，自然冷却至室温；步骤五、将冷却后体系离心分离，得到耐水性石膏乳液；步骤六、向墙板模具中喷涂脱模剂，将耐水性石膏乳液浇筑到墙板模具中，校平，在20℃～30℃条件下滚压，静养1天～2天；步骤七、将校平后墙板模具烘干，脱模，得到耐水石膏板。
Method for preparing water-resistant gypsum board
一种制备耐水石膏板的方法
25.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
High-fluorine-content gypsum water-resistant gypsum plaster board
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