A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of water-resistant gypsum emulsion
The invention discloses a preparation method of a water-resistant gypsum emulsion. The preparation method comprises the following steps: step 1, mixing gypsum, silica fume, borax, activated carbon, cement and a stearic acid emulsion, and conducting stirring and mixing for 1-3 h to obtain an emulsion system A; step 2, adding aluminum oxide and hydroxypropyl methyl cellulose into the emulsion system A obtained in the step 1 under a stirring condition at 60-80 DEG C, and continuing stirring after the aluminum oxide and the hydroxypropyl methyl cellulose are added so as to obtain an emulsion system B; step 3, adding polyacrylamide into the emulsion system B obtained in the step 2 under a stirring condition at 85-95 DEG C, continuing stirring after the polyacrylamide is added, and performing natural cooling to room temperature; and step 4, centrifugally separating the system after cooling in the step 3 to obtain the water-resistant gypsum emulsion. The gypsum emulsion prepared by the method disclosed by the invention has stable and long-lasting water resistance, can be applied to the building industry, is simple in components and low in cost, and can effectively save raw materials and protect the environment.
本发明公开了一种耐水性石膏乳液的制备方法，所述方法包括以下步骤：步骤一、将石膏、硅灰、硼砂、活性炭、水泥和硬脂酸乳液混合，搅拌混合1h～3h，得到乳液体系A；步骤二、在60℃～80℃搅拌条件下，将氧化铝和羟丙基甲基纤维素加入到步骤一所述乳液体系A中，加入完毕继续搅拌，得到乳液体系B；步骤三、在85℃～95℃搅拌条件下，将聚丙烯酰胺加入到步骤二所述乳液体系B中，加入完毕后继续搅拌，自然冷却至室温；步骤四、将步骤三冷却后体系离心分离，得到耐水性石膏乳液。本发明的方法制备的石膏乳液具有稳定且长久的耐水性，能够应用于建筑行业，成分简单，成本低，能够有效节约原料，保护环境。
Preparation method of water-resistant gypsum emulsion
The invention discloses a preparation method of a water-resistant gypsum emulsion. The preparation method comprises the following steps: step 1, mixing gypsum, silica fume, borax, activated carbon, cement and a stearic acid emulsion, and conducting stirring and mixing for 1-3 h to obtain an emulsion system A; step 2, adding aluminum oxide and hydroxypropyl methyl cellulose into the emulsion system A obtained in the step 1 under a stirring condition at 60-80 DEG C, and continuing stirring after the aluminum oxide and the hydroxypropyl methyl cellulose are added so as to obtain an emulsion system B; step 3, adding polyacrylamide into the emulsion system B obtained in the step 2 under a stirring condition at 85-95 DEG C, continuing stirring after the polyacrylamide is added, and performing natural cooling to room temperature; and step 4, centrifugally separating the system after cooling in the step 3 to obtain the water-resistant gypsum emulsion. The gypsum emulsion prepared by the method disclosed by the invention has stable and long-lasting water resistance, can be applied to the building industry, is simple in components and low in cost, and can effectively save raw materials and protect the environment.
本发明公开了一种耐水性石膏乳液的制备方法，所述方法包括以下步骤：步骤一、将石膏、硅灰、硼砂、活性炭、水泥和硬脂酸乳液混合，搅拌混合1h～3h，得到乳液体系A；步骤二、在60℃～80℃搅拌条件下，将氧化铝和羟丙基甲基纤维素加入到步骤一所述乳液体系A中，加入完毕继续搅拌，得到乳液体系B；步骤三、在85℃～95℃搅拌条件下，将聚丙烯酰胺加入到步骤二所述乳液体系B中，加入完毕后继续搅拌，自然冷却至室温；步骤四、将步骤三冷却后体系离心分离，得到耐水性石膏乳液。本发明的方法制备的石膏乳液具有稳定且长久的耐水性，能够应用于建筑行业，成分简单，成本低，能够有效节约原料，保护环境。
Preparation method of water-resistant gypsum emulsion
一种耐水性石膏乳液的制备方法
2021-06-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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