Unlock instant, AI-driven research and patent intelligence for your innovation.

Aliphatic water reducer and preparation method thereof

An aliphatic water reducer, water reducer technology, applied in the field of water reducer, can solve the problems of low production efficiency, easy to mildew, etc., to achieve the effect of enhancing mildew resistance

Inactive Publication Date: 2018-05-18
萧县沃德化工科技有限公司
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the water-reducing agent provided by the prior art has the advantages of high water-reducing rate and good fluidity, which can obviously improve the fluidity and workability of concrete, it still has the defects of easy mildew and low production efficiency.

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
  • Aliphatic water reducer and preparation method thereof
  • Aliphatic water reducer and preparation method thereof
  • Aliphatic water reducer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An aliphatic water reducer, the water reducer is made of the following raw materials in parts by weight: 5 parts of cyclohexanone, 6 parts of sodium sulfite, 10 parts of acrolein, 0.5 parts of styrenesulfonic acid, 4 parts of sodium nitrite, concentrated sulfuric acid 2 parts, 3 parts of calcium hydroxide, 3 parts of citric acid, 4 parts of hydrogen peroxide, 2 parts of ferric sulfite, appropriate amount of water.

[0021] The preparation method of this water reducer comprises the following steps:

[0022] (1) Add sodium sulfite and styrene sulfonic acid into the reaction flask, add water five times the mass of sodium sulfite, heat to 40°C for hydrolysis for 30 minutes, add 1 / 3 of acrolein under the condition of magnetic stirring at a rotational speed of 100r / min, After reacting for 1 h, adjust the pH to 10 with calcium hydroxide;

[0023] (2) Add 1 / 3 of acrolein and cyclohexanone dropwise to the product obtained in step (1), and control the dropwise addition time to 2...

Embodiment 2

[0027] An aliphatic water reducer, which is made of the following raw materials in parts by weight: 10 parts of cyclohexanone, 12 parts of sodium sulfite, 20 parts of acrolein, 2 parts of styrenesulfonic acid, 9 parts of sodium nitrite, concentrated sulfuric acid 6 parts, 8 parts of calcium hydroxide, 7 parts of citric acid, 11 parts of hydrogen peroxide, 6 parts of ferric sulfite, appropriate amount of water.

[0028] The preparation method of this water reducer comprises the following steps:

[0029] (1) Add sodium sulfite and styrene sulfonic acid into the reaction flask, add water five times the mass of sodium sulfite, heat to 45°C for hydrolysis for 30 minutes, add 1 / 3 of acrolein under magnetic stirring at a rotational speed of 150r / min, After reacting for 1 hour, adjust the pH to 11 with calcium hydroxide;

[0030] (2) Add dropwise 1 / 3 of acrolein and cyclohexanone to the product obtained in step (1), and control the dropwise addition time to 30 minutes. Magnetic stirr...

Embodiment 3

[0034] An aliphatic water reducer, the water reducer is made of the following raw materials in parts by weight: 6 parts of cyclohexanone, 8 parts of sodium sulfite, 12 parts of acrolein, 1 part of styrenesulfonic acid, 5 parts of sodium nitrite, concentrated sulfuric acid 3 parts, 4 parts of calcium hydroxide, 4 parts of citric acid, 6 parts of hydrogen peroxide, 3 parts of ferric sulfite, appropriate amount of water.

[0035] The preparation method of this water reducer comprises the following steps:

[0036] (1) Add sodium sulfite and styrene sulfonic acid into the reaction flask, add water five times the mass of sodium sulfite, heat to 41°C for 30 minutes for hydrolysis, add 1 / 3 of acrolein under magnetic stirring at a rotational speed of 110r / min, After reacting for 1 h, adjust the pH to 10 with calcium hydroxide;

[0037] (2) Add 1 / 3 of acrolein and cyclohexanone dropwise to the product obtained in step (1), and control the dropwise addition time to 25 min. Magnetic stir...

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 relates to the field of water reducers, in particular to an aliphatic water reducer and a preparation method thereof. The water reducer is prepared from, by weight, 5-10 parts of cyclohexanone, 6-12 parts of sodium sulfite, 10-20 parts of acrolein, 0.5-2 parts of styrene sulfonic acid, 4-9 parts of sodium nitrite, 2-6 parts of concentrated sulfuric acid, 3-8 parts of calcium hydroxide, 3-7 parts of citric acid, 4-11 parts of hydrogen peroxide, 2-6 parts of ferric sulfate and an appropriate amount of water. To some extent, the water reducer effectively overcomes the defects that an existing water reducer is prone to mildewing and low in production efficiency.

Description

technical field [0001] The invention relates to the field of water reducers, in particular to an aliphatic water reducer and a preparation method thereof. Background technique [0002] Water reducer is a concrete admixture that can reduce the amount of mixing water while maintaining the slump of concrete. Most of them belong to anionic surfactants, such as lignosulfonate, naphthalenesulfonate formaldehyde polymer, etc. After being added to the concrete mixture, it can disperse the cement particles, improve its workability, reduce the unit water consumption, and improve the fluidity of the concrete mixture; or reduce the unit cement consumption and save cement. [0003] In the Chinese published patent application CN104119021B, an aliphatic water reducer is obtained by mixing the following raw materials in parts by weight: β-naphthalenesulfonate formaldehyde condensate 50-60, polyethylene glycol monomethyl ether methyl Acrylate 20-30, calcium lignosulfonate 15-25, ethylene o...

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): C08G8/04C08K3/28C04B24/30
Inventor 马丽涛崔岩王硕
Owner 萧县沃德化工科技有限公司