Novel water reducer containing phosphate group, and preparation method thereof

A phosphoric acid-based, water-reducing agent technology, applied in the field of concrete admixtures, can solve the problems of rapid concrete slump loss, general water-reducing rate, and affecting the early strength of concrete, so as to achieve good water-reducing effect and solve slump loss big effect

Active Publication Date: 2019-02-01
ZHENJIANG SOBUTE NEW MATERIAL CO LTD +2
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As the representative of the second generation of water reducing, naphthalene series is currently one of the largest and most widely used water reducing agents in China. Its cement adaptability is good and the price is cheap. However, due to its general water redu

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel water reducer containing phosphate group, and preparation method thereof
  • Novel water reducer containing phosphate group, and preparation method thereof
  • Novel water reducer containing phosphate group, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] Example: A novel phosphoric acid group-containing water reducer and its preparation method. The structure of the phosphoric acid group-containing novel water reducer conforms to the general formula (I); the preparation method of the phosphoric acid group-containing novel water reducer consists of Phosphate-based monomers, and then polycondensed with polyether side chain-containing fused ring compounds and formaldehyde; the molar ratio of phosphoric acid-based monomers, polyether side-chain-containing condensed ring compounds, and formaldehyde is 1:1.3 : 1.4.

[0023]

[0024] wherein m=integer of 1-40; l=integer of 1-60; n=integer of 1-30; k=2, 4, 6, 8; wherein M=Na, K or H.

[0025] The preparation method of a novel phosphoric acid group-containing water reducer according to the present invention, the specific steps are as follows: 1 mol of phosphoric acid group-containing monomers and 1.3 mol of polyether side chain-containing condensed ring compounds are placed in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technical field of concrete admixtures, and especially relates to a novel water reducer containing a phosphate group, and a preparation method thereof. The preparation method of the novel water reducer containing the phosphate group comprises the following steps: preparing a monomer containing the phosphate group, and carrying out a polycondensation reaction on the monomer and a fused ring compound containing a polyether side chain in order to obtain the novel water reducer containing the phosphate group. The obtained novel water reducer containing the phosphate group has a much better water reducing effect than traditional naphthalene-based water reducers, also has a strong slump retaining performance, and greatly improves the state of the concrete.

Description

technical field [0001] The invention belongs to the technical field of concrete admixtures, in particular to a novel phosphoric acid group-containing water reducer and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy and the continuous improvement of infrastructure facilities, the demand for additives is increasing. Concrete water reducer is an indispensable admixture for high-performance concrete. It refers to an additive that can reduce the amount of mixing water when the amount of concrete and cement remains unchanged. It is the largest and most widely used concrete admixture. It can reduce water consumption, improve concrete strength and durability, and improve concrete workability and fluidity. [0003] As the representative of the second generation of water reducing, naphthalene series is currently one of the largest and most widely used water reducing agents in China. Its cement adaptability is good and th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08G61/02C04B24/30C04B103/30
CPCC04B24/30C04B2103/302C08G61/02C08G2261/122C08G2261/1424C08G2261/147C08G2261/228C08G2261/314C08G2261/3326C08G2261/352
Inventor 吴井志乔敏冉千平高南箫陈健单广程朱伯淞
Owner ZHENJIANG SOBUTE NEW MATERIAL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap