Polycarboxylic acid high-performance water reducer

A high-performance, water-reducing agent technology, applied in the field of concrete admixtures, to achieve the effect of high water-reducing rate, easy operation, and low dosage

Inactive Publication Date: 2014-07-16
SHANDONG DAYUAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the prior art, although the composition and preparation methods of the above-mentioned polycarboxylate superplasticizers are different, they have the characteristics of stable performance, improved conversion rate of reaction, and reduced cost of synthetic materials. However, the majority of users and friends still expect Looking forward to the emergence of new low-cost, high-performance admixtures

Method used

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  • Polycarboxylic acid high-performance water reducer

Examples

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Effect test

Embodiment 1

[0029] A polycarboxylate high-performance water reducer, prepared from the following raw materials in parts by weight: 25 parts of acrylic acid, 10 parts of thioglycolic acid, 30 parts of prenol polyoxyethylene ether, 1 part of hydrogen peroxide, and 1 part of vitamin C , 1 part of white sugar, 0.5 part of sodium lauryl sulfate, and 25 parts of water. Its preparation method is as follows: First, put prenol polyoxyethylene ether and water into a stirring tank and stir evenly, then add acrylic acid, thioglycolic acid, hydrogen peroxide, vitamin C, liquid caustic soda, sugar, ten Sodium dialkyl sulfonate, after stirring and mixing evenly, prepare high-performance polycarboxylate water reducer.

Embodiment 2

[0031] A polycarboxylic acid high-performance water reducer, prepared from the following raw materials in parts by weight: 35 parts of acrylic acid, 20 parts of thioglycolic acid, 50 parts of prenol polyoxyethylene ether, 10 parts of hydrogen peroxide, and 10 parts of vitamin C , 5 parts of white sugar, 2 parts of sodium lauryl sulfate, 60 parts of water. Its preparation method is as follows: First, put prenol polyoxyethylene ether and water into a stirring tank and stir evenly, then add acrylic acid, thioglycolic acid, hydrogen peroxide, vitamin C, liquid caustic soda, sugar, ten Sodium dialkyl sulfonate, after stirring and mixing evenly, prepare high-performance polycarboxylate water reducer.

Embodiment 3

[0033] A polycarboxylic acid high-performance water reducer, prepared from the following raw materials in parts by weight: 30 parts of acrylic acid, 15 parts of thioglycolic acid, 40 parts of prenol polyoxyethylene ether, 5 parts of hydrogen peroxide, and 5 parts of vitamin C , 3 parts of white sugar, 1.5 parts of sodium lauryl sulfate, and 45 parts of water. Its preparation method is as follows: First, put prenol polyoxyethylene ether and water into a stirring tank and stir evenly, then add acrylic acid, thioglycolic acid, hydrogen peroxide, vitamin C, liquid caustic soda, sugar, ten Sodium dialkyl sulfonate, after stirring and mixing evenly, prepare high-performance polycarboxylate water reducer.

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Abstract

The invention relates to a polycarboxylic acid high-performance water reducer. The poly polycarboxylic acid high-performance water reducer is prepared from the following raw materials in parts by weight: 25-35 parts of acrylic acid, 10-20 parts of mercaptoacetic acid, 30-50 parts of isopentenol polyoxyethylene ether, 1-10 parts of hydrogen peroxide, 1-10 parts of vitamin C, 1-5 parts of white sugar, 0.5-2 parts of sodium dodecyl sulphate and 25-60 parts of water. The polycarboxylic acid high-performance water reducer has excellent performance, high water-reducing rate, low mixing amount, small slump gradual loss, good adaptability and good gel material adaptability, a production process is easy in operation, heating is not needed, purified water is not needed, energy consumption is low, and the polycarboxylic acid high-performance water reducer is green.

Description

technical field [0001] The invention relates to the technical field of concrete admixtures, in particular to a polycarboxylate high-performance water reducer. Background technique [0002] At present, there are many kinds of polycarboxylate superplasticizers on the market. For example, the Chinese invention patent application "Preparation method of polycarboxylate superplasticizer" with publication number CN102504132A is prepared by the following process: allyl ether Dissolve in deionized water, then add acrylic acid and vinyl acetate, heat up and stir to 60°C, add hydrogen peroxide, heat up to 80°C, then start to drop the solution made of sodium bisulfite formaldehyde + deionized water at the same time, For the solution made of maleic anhydride + acrylic acid + deionized water, heat up to 87°C after dripping, then keep it warm for 1 hour, then cool down to 60-80°C, add liquid caustic soda for neutralization, add deionized water after stirring to adjust the concentration, O...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/16C04B103/30
Inventor 季龙泉季冠祥季元升
Owner SHANDONG DAYUAN IND
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