Clay inhibitor as well as preparation method and application thereof

A clay inhibitor and compound technology, which is applied in the field of preparation of concrete superplasticizer additives, can solve the problems of low cost performance and high dosage, and achieve the effects of inhibiting hydration expansion, simple preparation process, and preventing adsorption

Active Publication Date: 2015-04-29
JIANGSU SOBUTE NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because it is compounded with small molecular compounds, the dosage is obviously higher, and the cost performance is lower

Method used

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  • Clay inhibitor as well as preparation method and application thereof
  • Clay inhibitor as well as preparation method and application thereof
  • Clay inhibitor as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation of embodiment 1 organic cationic compound A

[0032]In a 1L glass round bottom flask equipped with a thermometer, a stirrer, and a dropping funnel, add 49.6g of water and 32.9g of ethylenediamine, stir and mix evenly, keep the temperature at 20°C, and then add 330.5g of 2,3-epoxypropylene A mixed solution composed of trimethylammonium chloride and 491.6g of water was continuously added dropwise to the round bottom flask at a constant speed for 4 hours. After the dropwise addition was completed, the temperature was raised to 60°C, and the stirring was continued for 4 hours to obtain An aqueous solution of organic cationic compound A-1 with a solid content of 40%.

Embodiment 2

[0033] The preparation of embodiment 2 organic cationic compound A

[0034] In a 1L glass round-bottomed flask equipped with a thermometer, a stirrer, and a dropping funnel, add 58.8g of water and 25.1g of diethylenetriamine, stir and mix evenly, keep the temperature at 60°C, and then add 229.4g of 3-chloro-2- The mixed solution composed of hydroxypropyltrimethylammonium chloride and 536.2g of water was continuously added dropwise to the round bottom flask at a constant speed for 6 hours. After the dropwise addition was completed, the temperature was raised to 90°C, and the stirring was continued for 1 hour. That is, an aqueous solution of organic cationic compound A-2 with a solid content of 30% was obtained.

Embodiment 3

[0035] The preparation of embodiment 3 organic cationic compound A

[0036] In a 1L glass round bottom flask equipped with a thermometer, a stirrer, and a dropping funnel, add 61.1g of water and 61.1g of triethylenetetramine, stir and mix evenly, keep the temperature at 45°C, and then add 378.9g of 2,3-epoxy The mixed solution composed of propyltrimethylammonium chloride and 378.9g water was continuously added dropwise to the round bottom flask at a constant speed for 4 hours. After the dropwise addition was completed, the temperature was raised to 60°C, and the stirring was continued for 3 hours at a constant temperature. An aqueous solution of organic cationic compound A-3 with a solid content of 50% was obtained.

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Abstract

The invention provides a clay inhibitor which is prepared by uniformly mixing an organic cationic compound A and a polyol amine compound B in a mass ratio of (1-5):1 at normal temperature. The invention also provides a preparation method of the clay inhibitor and an application of the clay inhibitor in inhibiting clay side effects. The clay inhibitor is simple in preparation process, is convenient to use and is low in cost; and the organic cationic compound and the polyol amine compound contained in the clay inhibitor achieve a synergistic effect, so that the negative impact of clay on the performance of a polycarboxylic acid water reducer is effectively reduced.

Description

technical field [0001] The invention belongs to the field of preparation of concrete superplasticizer additives, and in particular relates to a clay inhibitor for suppressing side effects of clay and a preparation method thereof. Background technique [0002] In recent years, the scale of my country's infrastructure projects has been huge, and high-speed railways, highways, large bridges, hydropower projects, and urbanization have advanced rapidly, and the amount of concrete used has accounted for more than half of the world's total. However, with the rapid development of engineering construction, the consumption of sand and gravel aggregates is huge, and high-quality natural sand and gravel resources are increasingly scarce; especially in remote and arid areas, sand and gravel aggregates cannot be effectively cleaned, making sand and gravel aggregates in some areas The mud content gradually increased. Therefore, machine-made sand has gradually been widely used in concrete,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12
Inventor 冉千平杨勇刘加平刘浩周栋梁毛永琳
Owner JIANGSU SOBUTE NEW MATERIALS
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