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High-intensity solubilizing liquid accelerator and preparation method thereof

An accelerator and liquid technology, applied in the field of building materials, can solve the problems of low production concentration, poor stability, easy delamination, etc., and achieve the effects of reducing transportation costs, improving stability, and improving comprehensive strength.

Active Publication Date: 2019-06-14
KZJ NEW MATERIALS GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-strength solubilizing liquid quick-setting agent and its preparation method to solve the problems of existing quick-setting agents such as poor stability, easy stratification and precipitation, and the production concentration cannot be increased.

Method used

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  • High-intensity solubilizing liquid accelerator and preparation method thereof
  • High-intensity solubilizing liquid accelerator and preparation method thereof
  • High-intensity solubilizing liquid accelerator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Preparation of complexing enhancer: 100.00g ethylenediaminetetraacetic acid is added in the reactor, the stirring device is opened, and 24.00g monoethanolamine and 1.20g p-toluenesulfonic acid are added in one go to react at a temperature of 80 At ℃, react for 3 hours to obtain the complexation enhancer;

[0023] (2) Preparation of stabilizer: Add 100.00g of bottom water to the reactor, turn on the stirring device, control the temperature of the reactor to 40°C, and then add 2-fluorocinnamic acid and 3-fluorocinnamic acid dropwise to the reactor respectively. Mixed solution (wherein 2-fluorocinnamic acid is 18.00g, 3-fluorocinnamic acid is 2.00g, water is 20.00g), acrylic acid aqueous solution (wherein acrylic acid is 46.00g, water is 20.00g), ammonium persulfate aqueous solution (wherein Ammonium sulfate is 1.00g, water is 10.00g) and thioglycolic acid aqueous solution (wherein thioglycolic acid is 0.60g, and water is 10.00g), and the dropping time is 2.0h. After t...

Embodiment 2

[0026] (1) Preparation of complexation enhancer: 100.00g of ethylenediaminetetraacetic acid is added to the reaction kettle, the stirring device is turned on, and 36.00g of diethanolamine and 2.00g of concentrated sulfuric acid are added at one time to react at a temperature of 90°C , reacted for 3h to obtain the complexation enhancer;

[0027] (2) Preparation of stabilizer: Add 100.00g of bottom water to the reactor, turn on the stirring device, control the temperature of the reactor to 30°C, and then add 2-fluorocinnamic acid and 4-fluorocinnamic acid dropwise to the reactor respectively. Mixed solution (wherein 2-fluorocinnamic acid is 10.00g, 4-fluorocinnamic acid is 10.00g, water is 20.00g), acrylic acid aqueous solution (wherein acrylic acid is 37.00g, water is 20.00g), ammonium persulfate aqueous solution (wherein Ammonium sulfate is 1.70g, water is 10.00g) and mercaptopropionic acid aqueous solution (ammonium mercaptopropionic acid is 1.00g, water is 10.00g), and the t...

Embodiment 3

[0030] (1) Preparation of complexation enhancer: 100.00g of ethylenediaminetetraacetic acid was added to the reaction kettle, the stirring device was turned on, and 39.00g of triethanolamine and 2.70g of concentrated sulfuric acid were added at one time to react at a temperature of 70°C , reacted for 4h to obtain the complexation enhancer;

[0031] (2) Preparation of stabilizer: Add 100.00g of bottom water to the reactor, turn on the stirring device, control the temperature of the reactor to 50°C, and then add 3-fluorocinnamic acid and 2-(trifluoroform base) cinnamic acid mixed solution (wherein 3-fluorocinnamic acid is 16.00g, 2-(trifluoromethyl)cinnamic acid is 4.00g, water is 20.00g), acrylic acid aqueous solution (wherein acrylic acid is 50.00g, water is 20.00g g), ammonium persulfate aqueous solution (wherein ammonium persulfate is 2.00g, water is 10.00g) and mercaptoethanol aqueous solution (wherein mercaptoethanol is 1.40g, water is 10.00g), the dropping time is 2.0h, a...

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Abstract

The invention belongs to the technical field of a building material, and particularly relates to a high-intensity solubilizing liquid accelerator and a preparation method thereof, wherein the liquid accelerator at least comprises the following preparation raw materials in parts by weight: 30 to 40 parts of aluminum sulfate, 5 to 10 parts of aluminum citrate, 2 to 8 parts of hydroxyethyl cellulose,1 to 10 parts of pH regulators, 5 to 15 parts of complexing enhancers, 0.5 to 3 parts of stabilizing agents and the balance of water. Through the introduction of hydroxyethyl cellulose for synthesizing the liquid accelerator; through the combination of the complexing enhancers, stabilizing agents and the hydroxyethyl cellulose in the solution, a crosslinked reticular structure is formed; the goodsolubilizing effect can be achieved; the product concentration is as high as 80 percent; phenomena of layering and precipitation separation cannot occur; the product dissolution effect is good; the transportation cost of the liquid accelerator can be reduced.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a high-strength solubilizing liquid quick-setting agent and a preparation method thereof. Background technique [0002] Accelerator is a new type of chemical admixture that can quickly set and harden cement concrete. In order to increase the thickness of the first shotcrete sprayed layer, the shotcrete must be mixed with an accelerator, so as to shorten the time interval between two sprays and improve The early strength of shotcrete can reduce the rebound of shotcrete and ensure the stability of project quality. It is mainly used in the anchor shotcrete support, plugging and emergency repair of tunnels, wells, slope protection and other projects. [0003] There are many kinds of accelerators. According to the nature and state of accelerators, they can be roughly divided into four types: alkali powder accelerators, alkali-free powder accelerators, alkali liq...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B103/12
CPCC04B24/38
Inventor 官梦芹郭鑫祺李祥河蒋卓君陈晓彬林添兴郭元强
Owner KZJ NEW MATERIALS GROUP CO LTD
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