Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite modifier for gypsum
The invention relates to the technical field of comprehensive utilization of solid wastes, in particular to a composite modifier for gypsum, which is prepared by the following steps: melting a certain amount of calcium sulfate, uniformly mixing the molten calcium sulfate with carbide slag according to the ratio of calcium substances in calcium sulfate crystals to calcium substances in the carbide slag of 1.1-1.4, then adding alkaline papermaking black liquor, fully stirring, adding a small amount of adhesive, fiber, foaming agent, modified starch, polyhydroxy carbohydrate, calcium formate and polymer, blending and stirring to obtain a product A, and adding the treated catalyst according to the mass fraction of 0.6-8% of the use amount of the product A to obtain the composite modifier. Compared with the prior art, the composite modifier has the advantages that the strength of the gypsum product is improved, the damping deflection is reduced, the corner hardness is improved, and as crystals recrystallized on the surface of the catalyst can grow quickly, the plasticizing process can be accelerated, the gypsum product has early strength, the product yield is improved, and the development of the gypsum-based building material industry is greatly promoted.
本发明涉及固体废弃物综合利用技术领域，具体是指一种石膏用复合改性剂，按一定量的硫酸钙，熔融后和电石渣混合均匀，硫酸钙晶和电石渣中钙物质的量比值为1.1～1.4，再加入碱法造纸黑液充分搅拌，加入少量胶粘剂、纤维、泡沫剂、改性淀粉、多羟基碳水化合物、甲酸钙和聚物，共混搅拌生产得A品，将处理过的催化剂按A品用量质量分数比0.6～8％添加，得复合改良剂。本发明与现有技术相比的有点在于：提高了石膏制品强度，降低了受潮挠度，提高了边角硬度，由于在催化剂表面重结晶的晶体能够快速长晶，因此本发明还能加快塑化过程，令石膏制品具有早强性，提高了产品的产出率，对石膏基建材行业的发展起到了极大的促进作用。
Composite modifier for gypsum
The invention relates to the technical field of comprehensive utilization of solid wastes, in particular to a composite modifier for gypsum, which is prepared by the following steps: melting a certain amount of calcium sulfate, uniformly mixing the molten calcium sulfate with carbide slag according to the ratio of calcium substances in calcium sulfate crystals to calcium substances in the carbide slag of 1.1-1.4, then adding alkaline papermaking black liquor, fully stirring, adding a small amount of adhesive, fiber, foaming agent, modified starch, polyhydroxy carbohydrate, calcium formate and polymer, blending and stirring to obtain a product A, and adding the treated catalyst according to the mass fraction of 0.6-8% of the use amount of the product A to obtain the composite modifier. Compared with the prior art, the composite modifier has the advantages that the strength of the gypsum product is improved, the damping deflection is reduced, the corner hardness is improved, and as crystals recrystallized on the surface of the catalyst can grow quickly, the plasticizing process can be accelerated, the gypsum product has early strength, the product yield is improved, and the development of the gypsum-based building material industry is greatly promoted.
本发明涉及固体废弃物综合利用技术领域，具体是指一种石膏用复合改性剂，按一定量的硫酸钙，熔融后和电石渣混合均匀，硫酸钙晶和电石渣中钙物质的量比值为1.1～1.4，再加入碱法造纸黑液充分搅拌，加入少量胶粘剂、纤维、泡沫剂、改性淀粉、多羟基碳水化合物、甲酸钙和聚物，共混搅拌生产得A品，将处理过的催化剂按A品用量质量分数比0.6～8％添加，得复合改良剂。本发明与现有技术相比的有点在于：提高了石膏制品强度，降低了受潮挠度，提高了边角硬度，由于在催化剂表面重结晶的晶体能够快速长晶，因此本发明还能加快塑化过程，令石膏制品具有早强性，提高了产品的产出率，对石膏基建材行业的发展起到了极大的促进作用。
Composite modifier for gypsum
一种石膏用复合改性剂
XU YUN (Autor:in) / ZENG JINGXIANG (Autor:in) / HUANG MINGZHONG (Autor:in) / LI FUYONG (Autor:in) / TANG GANG (Autor:in) / HUANG ANJUN (Autor:in) / ZENG ZHONGDONG (Autor:in)
07.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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