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Polycarboxylic acid high-performance water reducing agent and preparation method thereof

A high-performance, polycarboxylic acid technology, applied in the field of concrete additives, can solve the problems of many types of raw materials, complicated preparation methods, and long time, and achieve the effect of less types, simple preparation methods, and short time

Inactive Publication Date: 2018-09-28
云南圣比奥建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the existing polycarboxylate high-performance water reducer is prepared, many kinds of raw materials are required for preparation, and the preparation method is complicated and takes a long time, resulting in high cost of the prepared polycarboxylate high-performance water reducer

Method used

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  • Polycarboxylic acid high-performance water reducing agent and preparation method thereof

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Effect test

Embodiment 1

[0021] The polycarboxylate high-performance water reducer in the present invention comprises, by weight, 200 parts of methallyl polyoxyethylene ether, 150 parts of deionized water, 100 parts of A liquid, and 85 parts of B liquid. Wherein liquid A comprises 150 parts of acrylic acid and 50 parts of water by weight percentage. Liquid B includes 3 parts of mercaptopropionic acid, 1 part of VC and 150 parts of water by weight percentage.

[0022] The preparation method of above-mentioned polycarboxylate high-performance water reducing agent comprises the steps:

[0023] Step S1. Weigh 150 parts of acrylic acid and 50 parts of water according to parts by weight, add water to acrylic acid and stir evenly, add liquid A dropwise into the tank to obtain liquid A; weigh 3 parts of mercaptopropionic acid and 1 part of VC according to parts by weight 150 parts of water, completely dissolve VC and water, add mercaptopropionic acid, stir evenly, add B liquid into a tank to obtain B liquid;...

Embodiment 2

[0028] The polycarboxylate high-performance water reducer in the present invention comprises, in parts by weight: 250 parts of methallyl polyoxyethylene ether, 200 parts of deionized water, 125 parts of A liquid, and 93 parts of B liquid. Wherein liquid A comprises 180 parts of acrylic acid and 70 parts of water by weight percentage. Liquid B comprises 4 parts of mercaptopropionic acid, 2 parts of VC and 180 parts of water by weight percentage.

[0029] The preparation method of above-mentioned polycarboxylate high-performance water reducing agent comprises the steps:

[0030] Step S1. Weigh 180 parts of acrylic acid and 70 parts of water according to parts by weight, add water to acrylic acid and stir evenly, add liquid A dropwise into the tank to obtain liquid A; weigh 4 parts of mercaptopropionic acid and 2 parts of VC according to parts by weight 1. 180 parts of water, completely dissolve VC and water, add mercaptopropionic acid, stir evenly, add B liquid into a tank to o...

Embodiment 3

[0035] The polycarboxylate high-performance water reducer in the present invention comprises, by weight: 300 parts of methallyl polyoxyethylene ether, 250 parts of deionized water, 150 parts of A liquid, and 100 parts of B liquid. Wherein liquid A comprises 200 parts of acrylic acid and 100 parts of water by weight percentage. Liquid B comprises 5 parts of mercaptopropionic acid, 3 parts of VC and 200 parts of water by weight percentage.

[0036] The preparation method of above-mentioned polycarboxylate high-performance water reducing agent comprises the steps:

[0037] Step S1. According to the parts by weight, weigh 200 parts of acrylic acid and 100 parts of water, add water to the acrylic acid and stir evenly, add liquid A dropwise into the tank to obtain liquid A; weigh 5 parts of mercaptopropionic acid and 3 parts of VC according to the parts by weight 1. 200 parts of water, completely dissolve VC and water, add mercaptopropionic acid, stir evenly, add B liquid into a ta...

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Abstract

The invention discloses a polycarboxylic acid high-performance water reducing agent which comprises the following components in parts by weight: 200-300 parts of methallyl polyoxyethylene ether, 150-250 parts of deionized water, 100-150 parts of a liquid A and 85-100 parts of a liquid B. The invention further discloses a preparation method of the polycarboxylic acid high-performance water reducingagent. The polycarboxylic acid high-performance water reducing agent disclosed by the invention is small in raw material type, simple in preparation method, short in time and low in temperature; in addition, the prepared water reducing agent is relatively high in water reduction rate and excellent in property, and construction of multiple projects can be met.

Description

technical field [0001] The invention relates to the technical field of concrete additives, in particular to a polycarboxylate high-performance water reducer and a preparation method thereof. Background technique [0002] High-performance water reducer is an indispensable component for the preparation of high-performance concrete. The high performance of the water reducing agent means that it not only has a high water reducing rate and the performance of maintaining the slump of concrete for a long time, but also makes the configured concrete have good mechanical properties and excellent durability. The improvement of the performance of the water reducing agent can not only improve the mechanical properties of concrete to a large extent, but also further improve the construction performance. [0003] Polycarboxylate high-performance water reducer represents the future development direction of concrete admixture due to its excellent performance and environmental protection ch...

Claims

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Application Information

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IPC IPC(8): C04B24/32C04B103/30
CPCC04B40/0039C04B2103/302C04B24/32C04B24/04C04B24/16C04B24/06
Inventor 杨勇
Owner 云南圣比奥建材有限公司