Sobute New Materials Co., Ltd

Nanjing Bote New Materials Co., Ltd.

Bote New Materials Taizhou Jiangyan Co., Ltd

Bote Building Materials (Tianjin) Co., Ltd

Jinzhi Liu

Qianping Ran

Jiaping Liu

Yong Yang

Xin Shu

Dongliang Zhou

Jiangang Zhang

Yanwei Wang

Han Yan

Hongxia Zhao

Shentong Li

Xiumei Wang

Cheng Yu

Disclosed are a highly adaptable viscosity-reducing polycarboxylate water reducer and its preparation method and application. The highly adaptable viscosity-reducing polycarboxylate water reducer is composed of a polymer and water, and the polymer accounts for 30-50 wt %; since the main chain of the polymer contains a hydrophobic benzene ring and hydrophilic amine, the polymer has strong rigidity and good solubility in an aqueous solution, and is rich in two adsorption groups of carboxyl group/phosphono group. The highly adaptable viscosity-reducing polycarboxylate water reducer of the present invention has excellent water-reducing and slump retention properties and is suitable for general construction projects and commercial concrete projects. Compared with the conventional polycarboxylate water reducer, the highly adaptable viscosity-reducing polycarboxylate water reducer of the present invention has strong adaptability to concrete materials and can effectively reduce the viscosity of high-strength concrete (C50-C100), thus having bright application prospects in the high-end water reducer market.

High-adaptability viscosity-reducing polycarboxylic acid water reducer, preparation method therefor and use thereof

Disclosed is an amphiphilic multifunctional hybrid nanoparticle. The nanoparticle of the present invention has a detachable hydrophilic organic polymer with both a water-soluble long chain and a hydrophobic long hydrocarbon functional group attached to the surface, wherein the body of the nanoparticle is a silica or an organofunctional group substituted silica or an organofunctional group substituted silicon-oxygen bond network, and the nanoparticle contains a free organosiloxane with hydrophobic long hydrocarbon functional groups and a fatty acid or fatty acid ester or aluminum complex of fatty acid with hydrophobic long hydrocarbon functional groups. The nanoparticle can reduce the water permeability of the cement-based material; the cement-based material has the internal hydration products and interfaces are hydrophobized, further reducing the possibility that the harmful particles erode the cement-based material through moisture penetration; furthermore, Si—Al oxides participate is beneficial to the improvement of its mechanical properties.

Amphipathic multifunctional hybrid nanoparticle, and preparation method therefor and application thereof

The present invention discloses a multitype-adsorptive-group polycarboxylic acid water-reducing agent, consisting of 30-60 wt % of a macromolecule with multitype-adsorptive groups and water, the macromolecule with multitype-adsorptive groups has a polyethylene glycol side chain, and adsorption groups of the polymer backbone include a carboxylic acid group, a sulfonic acid group and a phosphoric acid group, the phosphoric acid group being linked to the backbone of the macromolecule with multitype-adsorptive groups by nucleophilic addition. The water-reducing agent of the present invention has significantly improved adaptability to different cements and aggregates while maintaining a high water reduction efficiency, compared with the conventional polycarboxylic acid water-reducing agent agent. It has a good water reducing efficiency in many different grades of cement, as well as a better resistance to aggregates containing more impurities such as machine-made sand.

Multitype-adsorptive-group polycarboxylic acid water-reducing agent, method for preparing the same and use thereof

A slump retaining polycarboxylic acid superplasticizer. A weight average molecular weight of the superplasticizer is 20,000-80,000. The slump retaining polycarboxylic acid superplasticizer is prepared by performing polymerization reaction on a monomer A, a monomer B, a monomer C and a monomer D in an aqueous solution in the presence of a redox initiator, wherein a molar ratio of (the monomer A+the monomer B):the monomer C:the monomer D is 1:(3-8):(4-12), and a molar ratio of the monomer A to the monomer B is 1:(1-4).

Slump retaining polycarboxylic acid superplasticizer

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Nanjing, China

Jinzhi Liu