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A platform for research: civil engineering, architecture and urbanism
Powder defoaming agent for self-leveling cement
The invention discloses a powder defoaming agent for self-leveling cement, and belongs to the technical field of cement defoaming agents. The preparation method comprises the following steps: uniformly pre-mixing 10-30% of polyether modified polysiloxane A, 10-30% of polyether B, 5-20% of environment-friendly plasticizer C and 0.1-5% of anionic surfactant D to obtain a mixture M, then adding the mixture M into 50-70% of silicon dioxide E, and stirring and mixing to obtain a powdery defoaming agent product. When the prepared powder defoaming agent is used in cement, the slurry density is high, and the number of pores and oil spots is small after the cement is hardened. The hardened cement slurry is good in compressive strength and aesthetic degree, and has a wide industrial application prospect.
本发明公开了一种自流平水泥用粉末消泡剂，属于水泥消泡剂的技术领域。将10～30％聚醚改性聚有机硅氧烷A、10～30％聚醚B、5～20％环保增塑剂C、0.1～5％阴离子表面活性剂D预先混合均匀得到混合物M，然后将混合物M加入到50～70％二氧化硅E中搅拌混合即得粉末型消泡剂产品。本发明制备得到的粉末消泡剂在水泥中使用时浆料密度较高、水泥硬化后气孔和油斑数量少。水泥浆料硬化后的抗压强度和美观度均较好，具有广泛的工业应用前景。
Powder defoaming agent for self-leveling cement
The invention discloses a powder defoaming agent for self-leveling cement, and belongs to the technical field of cement defoaming agents. The preparation method comprises the following steps: uniformly pre-mixing 10-30% of polyether modified polysiloxane A, 10-30% of polyether B, 5-20% of environment-friendly plasticizer C and 0.1-5% of anionic surfactant D to obtain a mixture M, then adding the mixture M into 50-70% of silicon dioxide E, and stirring and mixing to obtain a powdery defoaming agent product. When the prepared powder defoaming agent is used in cement, the slurry density is high, and the number of pores and oil spots is small after the cement is hardened. The hardened cement slurry is good in compressive strength and aesthetic degree, and has a wide industrial application prospect.
本发明公开了一种自流平水泥用粉末消泡剂，属于水泥消泡剂的技术领域。将10～30％聚醚改性聚有机硅氧烷A、10～30％聚醚B、5～20％环保增塑剂C、0.1～5％阴离子表面活性剂D预先混合均匀得到混合物M，然后将混合物M加入到50～70％二氧化硅E中搅拌混合即得粉末型消泡剂产品。本发明制备得到的粉末消泡剂在水泥中使用时浆料密度较高、水泥硬化后气孔和油斑数量少。水泥浆料硬化后的抗压强度和美观度均较好，具有广泛的工业应用前景。
Powder defoaming agent for self-leveling cement
一种自流平水泥用粉末消泡剂
ZHU HONGDA (author)
2024-01-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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