Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Micro-crosslinking viscosity-reducing mud-resistant polycarboxylic acid water reducer and preparation method thereof
The invention discloses a micro-crosslinking viscosity-reducing mud-resistant polycarboxylic acid water reducer and a preparation method thereof, and solves the technical problems that: a gravel material with high mud content can quickly adsorb a polycarboxylic acid water reducing agent in the prior art in a short time, so that the flowability, slump retaining property and other properties of primarily mixed concrete are severely lost, and the working performance is lost. The micro-crosslinking viscosity-reducing mud-resistant polycarboxylic acid water reducer is prepared from the following raw materials in parts by weight: 180-220 parts of unsaturated polyether macromonomer, 25-35 parts of an unsaturated acid (anhydride) small monomer, 3-9 parts of an unsaturated silane monomer, 4-6 parts of a chain transfer agent, 12-18 parts of a single electron oxidant, and 220-280 parts of water. According to the micro-crosslinking viscosity-reducing mud-resistant polycarboxylic acid water reducer and the preparation method thereof provided by the invention, the viscosity of concrete can be reduced, so that the concrete has more excellent construction performance.
本发明公开了一种微交联降粘抗泥型聚羧酸减水剂及其制备方法，解决了含泥量高的砂石材料对现有技术中的聚羧酸减水剂能短时间迅速吸附，使初拌混凝土流动性、保坍性等性能严重损失而失去工作性能的技术问题。所述微交联降粘抗泥型聚羧酸减水剂的制备包括下述重量份的原料：不饱和聚醚大单体180‑220份；不饱和酸(酐)小单体25‑35份；不饱和硅烷单体3‑9份；链转移剂4‑6份；单电子氧化剂12‑18份；水220‑280份。本发明的。本发明提供的微交联降粘抗泥型聚羧酸减水剂及其制备方法，能使混凝土的粘度降低，使其有更加优异的施工性能。
Micro-crosslinking viscosity-reducing mud-resistant polycarboxylic acid water reducer and preparation method thereof
The invention discloses a micro-crosslinking viscosity-reducing mud-resistant polycarboxylic acid water reducer and a preparation method thereof, and solves the technical problems that: a gravel material with high mud content can quickly adsorb a polycarboxylic acid water reducing agent in the prior art in a short time, so that the flowability, slump retaining property and other properties of primarily mixed concrete are severely lost, and the working performance is lost. The micro-crosslinking viscosity-reducing mud-resistant polycarboxylic acid water reducer is prepared from the following raw materials in parts by weight: 180-220 parts of unsaturated polyether macromonomer, 25-35 parts of an unsaturated acid (anhydride) small monomer, 3-9 parts of an unsaturated silane monomer, 4-6 parts of a chain transfer agent, 12-18 parts of a single electron oxidant, and 220-280 parts of water. According to the micro-crosslinking viscosity-reducing mud-resistant polycarboxylic acid water reducer and the preparation method thereof provided by the invention, the viscosity of concrete can be reduced, so that the concrete has more excellent construction performance.
本发明公开了一种微交联降粘抗泥型聚羧酸减水剂及其制备方法，解决了含泥量高的砂石材料对现有技术中的聚羧酸减水剂能短时间迅速吸附，使初拌混凝土流动性、保坍性等性能严重损失而失去工作性能的技术问题。所述微交联降粘抗泥型聚羧酸减水剂的制备包括下述重量份的原料：不饱和聚醚大单体180‑220份；不饱和酸(酐)小单体25‑35份；不饱和硅烷单体3‑9份；链转移剂4‑6份；单电子氧化剂12‑18份；水220‑280份。本发明的。本发明提供的微交联降粘抗泥型聚羧酸减水剂及其制备方法，能使混凝土的粘度降低，使其有更加优异的施工性能。
Micro-crosslinking viscosity-reducing mud-resistant polycarboxylic acid water reducer and preparation method thereof
一种微交联降粘抗泥型聚羧酸减水剂及其制备方法
ZHANG CHONG (Autor:in) / SI HONGZHEN (Autor:in) / HAN LI (Autor:in) / WU XIAOBO (Autor:in) / QIN SHI (Autor:in) / LI TAO (Autor:in) / LI XUAN (Autor:in) / XU HONGTIAN (Autor:in)
07.12.2021
Patent
Elektronische Ressource
Chinesisch
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