A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a preparation method of low-cost humidifying plastering gypsum, which comprises the following steps: calcining desulfurized gypsum to obtain beta-hemihydrate gypsum, uniformlystirring the beta-hemihydrate gypsum and causticized white sludge, and uniformly stirring the beta-hemihydrate gypsum, the causticized white sludge, hydroxypropyl methyl cellulose, lignocellulose, zinc oxide, Bonite and protein powder with ultrahigh gel degree. According to the low-cost humidifying plastering gypsum, imported rubber powder and a retarder which are high in cost do not need to be added, causticized white mud slag and protein powder with the ultrahigh gel degree are adopted for replacement, the strength of the plastering gypsum can be achieved, the cost is low, and the shrinkagecracking phenomenon cannot be caused. A small amount of Bonite is added, the strength of the plastering gypsum can be effectively improved, a small amount of zinc oxide is added as a catalyst, and humidity adjustment is facilitated.
本发明公开了一种低成本调湿粉刷石膏的制备方法，采用脱硫石膏进行煅烧，得到β型半水石膏与苛化白泥渣搅拌均匀后再与羟丙基甲基纤维素、木质纤维素、氧化锌、博耐特和超高凝胶度蛋白粉，搅拌均匀后即可。本发明的低成本调湿粉刷石膏无需加入成本高昂的进口可在分散胶粉和缓凝剂，而采用苛化白泥渣和超高凝胶度蛋白粉进行替代，不但可以达到粉刷石膏的强度，而且成本低、还不会造成收缩开裂现象。本发明中加入少量的博耐特，不但可以有效提升粉刷石膏的强度，而且加入微量的氧化锌作为催化剂，有利于调节湿度。
The invention discloses a preparation method of low-cost humidifying plastering gypsum, which comprises the following steps: calcining desulfurized gypsum to obtain beta-hemihydrate gypsum, uniformlystirring the beta-hemihydrate gypsum and causticized white sludge, and uniformly stirring the beta-hemihydrate gypsum, the causticized white sludge, hydroxypropyl methyl cellulose, lignocellulose, zinc oxide, Bonite and protein powder with ultrahigh gel degree. According to the low-cost humidifying plastering gypsum, imported rubber powder and a retarder which are high in cost do not need to be added, causticized white mud slag and protein powder with the ultrahigh gel degree are adopted for replacement, the strength of the plastering gypsum can be achieved, the cost is low, and the shrinkagecracking phenomenon cannot be caused. A small amount of Bonite is added, the strength of the plastering gypsum can be effectively improved, a small amount of zinc oxide is added as a catalyst, and humidity adjustment is facilitated.
本发明公开了一种低成本调湿粉刷石膏的制备方法，采用脱硫石膏进行煅烧，得到β型半水石膏与苛化白泥渣搅拌均匀后再与羟丙基甲基纤维素、木质纤维素、氧化锌、博耐特和超高凝胶度蛋白粉，搅拌均匀后即可。本发明的低成本调湿粉刷石膏无需加入成本高昂的进口可在分散胶粉和缓凝剂，而采用苛化白泥渣和超高凝胶度蛋白粉进行替代，不但可以达到粉刷石膏的强度，而且成本低、还不会造成收缩开裂现象。本发明中加入少量的博耐特，不但可以有效提升粉刷石膏的强度，而且加入微量的氧化锌作为催化剂，有利于调节湿度。
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