Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thickening water-retaining agent with branched network structure and preparation method of thickening water-retaining agent
The invention relates to a thickening water-retaining agent with a branched network structure and a preparation method of the thickening water-retaining agent, and the thickening water-retaining agent is prepared from the following raw materials in parts by weight: 10 parts of unsaturated acid monomer; 5 to 40 parts of acrylamide; 1-5 parts of an unsaturated amide monomer; 3-10 parts of an unsaturated sulfonate monomer; 2-5 parts of a workability adjusting monomer; 0.5-2 parts of an oxidizing agent; 0.5-6 parts of a polymerizable reducing agent; and water. According to the prepared thickening water-retaining agent with the branched network structure, in the hydration process of cement, through the hydrolysis effect of amide groups, the branched structure is continuously added, and free water is continuously and slowly released to supplement free water consumed in the hydration process, so that the requirement of the fluidity of the concrete aging thickening water-retaining agent is met; the problems that in the prior art, a thickening water-retaining agent cannot meet the thickening water-retaining performance and the flowing performance of initial and lost concrete at the same time, and storage stability exists are solved.
本发明涉及一种具有支化网络结构的增稠保水剂及其制备方法，以重量份数计，制备原料包括：不饱和酸单体10份；丙烯酰胺5～40份；不饱和酰胺单体1～5份；不饱和磺酸盐单体3～10份；和易性调节单体2～5份；氧化剂0.5～2份；可聚合还原剂0.5～6份；以及水。本发明制备的具有支化网络结构的增稠保水剂，在水泥的水化过程中，通过酰胺基团的水解效应，不断的瓦加支化结构，不断的缓慢释放出自由水补充水化过程中消耗的自由水，满足混凝土经时增粘保水剂流动性的需求，解决了现有技术中存在的增稠保水剂无法同时满足初始和损失后混凝土增稠保水性能和流动性能、存在储存稳定性的问题。
Thickening water-retaining agent with branched network structure and preparation method of thickening water-retaining agent
The invention relates to a thickening water-retaining agent with a branched network structure and a preparation method of the thickening water-retaining agent, and the thickening water-retaining agent is prepared from the following raw materials in parts by weight: 10 parts of unsaturated acid monomer; 5 to 40 parts of acrylamide; 1-5 parts of an unsaturated amide monomer; 3-10 parts of an unsaturated sulfonate monomer; 2-5 parts of a workability adjusting monomer; 0.5-2 parts of an oxidizing agent; 0.5-6 parts of a polymerizable reducing agent; and water. According to the prepared thickening water-retaining agent with the branched network structure, in the hydration process of cement, through the hydrolysis effect of amide groups, the branched structure is continuously added, and free water is continuously and slowly released to supplement free water consumed in the hydration process, so that the requirement of the fluidity of the concrete aging thickening water-retaining agent is met; the problems that in the prior art, a thickening water-retaining agent cannot meet the thickening water-retaining performance and the flowing performance of initial and lost concrete at the same time, and storage stability exists are solved.
本发明涉及一种具有支化网络结构的增稠保水剂及其制备方法，以重量份数计，制备原料包括：不饱和酸单体10份；丙烯酰胺5～40份；不饱和酰胺单体1～5份；不饱和磺酸盐单体3～10份；和易性调节单体2～5份；氧化剂0.5～2份；可聚合还原剂0.5～6份；以及水。本发明制备的具有支化网络结构的增稠保水剂，在水泥的水化过程中，通过酰胺基团的水解效应，不断的瓦加支化结构，不断的缓慢释放出自由水补充水化过程中消耗的自由水，满足混凝土经时增粘保水剂流动性的需求，解决了现有技术中存在的增稠保水剂无法同时满足初始和损失后混凝土增稠保水性能和流动性能、存在储存稳定性的问题。
Thickening water-retaining agent with branched network structure and preparation method of thickening water-retaining agent
一种具有支化网络结构的增稠保水剂及其制备方法
ZHONG LINA (Autor:in) / FANG YUNHUI (Autor:in) / KE YULIANG (Autor:in) / LIN ZEYU (Autor:in) / LI DIANQUAN (Autor:in)
09.01.2024
Patent
Elektronische Ressource
Chinesisch
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