Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of silicon carbide whisker dispersion liquid applied to cement-based material
The invention provides a preparation method of a stable-dispersion silicon carbide whisker dispersion liquid applied to a cement-based material, wherein the preparation method comprises the steps: adding silicon carbide whiskers and a polycarboxylic acid water reducer into a calcium hydroxide aqueous solution with the pH value of 9-11, and sequentially carrying out magnetic stirring and ultrasonic dispersion to obtain the silicon carbide whisker dispersion liquid applied to the cement-based material, wherein the mass of the silicon carbide whiskers is 0.2-0.6% of the mass of the calcium hydroxide solution; and the mass of the polycarboxylic acid water reducer is 0.2-0.5% of the mass of the calcium hydroxide solution. The pH value of the silicon carbide whisker dispersion liquid is adjusted by using the component calcium hydroxide contained in the cement, so that the stability and dispersity of the silicon carbide whiskers in the dispersion liquid are improved, and the silicon carbide whiskers are more uniformly dispersed in the cement paste.
本发明提供一种分散稳定的应用于水泥基材料的碳化硅晶须分散液的制备方法，将碳化硅晶须和聚羧酸减水剂加入pH为9‑11的氢氧化钙水溶液中，依次进行磁力搅拌和超声分散，即得到所述应用于水泥基材料的碳化硅晶须分散液；所述碳化硅晶须的质量为所述的氢氧化钙溶液的0.2～0.6％；所述的聚羧酸减水剂的质量为所述的氢氧化钙溶液的0.2～0.5％。本发明利用水泥中包含的成分氢氧化钙来调节碳化硅晶须分散液的pH从而提高分散液中碳化硅晶须的稳定性和分散度，使得碳化硅晶须在水泥浆体中分散更为均匀。
Preparation method of silicon carbide whisker dispersion liquid applied to cement-based material
The invention provides a preparation method of a stable-dispersion silicon carbide whisker dispersion liquid applied to a cement-based material, wherein the preparation method comprises the steps: adding silicon carbide whiskers and a polycarboxylic acid water reducer into a calcium hydroxide aqueous solution with the pH value of 9-11, and sequentially carrying out magnetic stirring and ultrasonic dispersion to obtain the silicon carbide whisker dispersion liquid applied to the cement-based material, wherein the mass of the silicon carbide whiskers is 0.2-0.6% of the mass of the calcium hydroxide solution; and the mass of the polycarboxylic acid water reducer is 0.2-0.5% of the mass of the calcium hydroxide solution. The pH value of the silicon carbide whisker dispersion liquid is adjusted by using the component calcium hydroxide contained in the cement, so that the stability and dispersity of the silicon carbide whiskers in the dispersion liquid are improved, and the silicon carbide whiskers are more uniformly dispersed in the cement paste.
本发明提供一种分散稳定的应用于水泥基材料的碳化硅晶须分散液的制备方法，将碳化硅晶须和聚羧酸减水剂加入pH为9‑11的氢氧化钙水溶液中，依次进行磁力搅拌和超声分散，即得到所述应用于水泥基材料的碳化硅晶须分散液；所述碳化硅晶须的质量为所述的氢氧化钙溶液的0.2～0.6％；所述的聚羧酸减水剂的质量为所述的氢氧化钙溶液的0.2～0.5％。本发明利用水泥中包含的成分氢氧化钙来调节碳化硅晶须分散液的pH从而提高分散液中碳化硅晶须的稳定性和分散度，使得碳化硅晶须在水泥浆体中分散更为均匀。
Preparation method of silicon carbide whisker dispersion liquid applied to cement-based material
一种应用于水泥基材料的碳化硅晶须分散液的制备方法
SHI TAO (Autor:in) / LAN YINGJIA (Autor:in) / ZHENG BINGMIAO (Autor:in)
07.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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