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A kind of concrete defoamer and preparation method thereof

A defoamer and concrete technology, applied in the field of building admixtures, can solve the problems of complicated preparation process of solid silicone defoamer, complicated preparation process, limitation of concrete defoamer, etc. Simple, low-cost effects

Active Publication Date: 2021-05-28
KZJ NEW MATERIALS GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN103028275 A discloses a solid silicone defoamer, using triethanolamine and n-octanol as surface modifiers, the preparation process of the solid silicone defoamer is complicated, and the prepared defoamer has certain irritation; CN102350097 A Disclosed is a silicon polyether defoamer and a preparation method thereof. The modified silicone oil is prepared by using dimethyl silicone oil, polyether modified silicone oil, emulsifier, dispersant, thickener, regulator, stabilizer, etc., Modified silicone oil is prepared from modified polyether A, modified polyether B and polyether C. The preparation process is complex and cumbersome, the raw materials are cost-effective, and the preparation process is complicated, which limits the application of concrete defoamers.

Method used

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  • A kind of concrete defoamer and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In parts by weight, take 25 parts of polyoxyethylene lauryl ether phosphate, 5 parts of isomeric decanol random polyether TPE-1000, 4 parts of propylene glycol random polyether PPE-1500, and take glycerol random polyether 4 parts of GPE-3000, 3 parts of polyoxyethylene (9) lauryl silicate LAE-9, 3 parts of polyoxyethylene laurylamine, in a stirred tank, at a temperature of 80 ° C, stirred for 5 hours; propylene glycol alginate Put 2 parts of ester, 1 part of polyethylene glycol distearate, and 2 parts of oleic acid in a reactor, and stir for 2 hours at a temperature of 50°C; take 1 part of sodium dioctyl succinate sulfonate, sulfobutyl Add 1 part of dioctyl sodium dioate and 44 parts of water to the prepared material in turn, stir at 30°C for 2 hours to prepare a concrete defoamer.

Embodiment 2

[0027] In parts by weight, 15 parts of isomeric decanol polyoxyethylene ether phosphate, 4 parts of butanol random polyether BRE-1500, 6 parts of lauryl alcohol random polyether CPE-1500, 3 parts of polyoxyethylene oleate 4 parts, 4 parts of polyoxyethylene stearate, in a stirred tank, stirred for 4 hours at a temperature of 90 ° C; 1 part of cross glue, 3 parts of sodium polyacrylate, 2 parts of hexanediol, at a temperature of 60 ° C Stir for 1.5 hours; take 1 part of di-isooctyl sodium sulfosuccinate, 1 part of fatty amide N-methyl taurate sodium, and 50 parts of water in turn, add to the prepared material, stir at 40 ° C for 2 hours to prepare concrete defoaming agent.

Embodiment 3

[0029] In parts by weight, 18 parts of isooctyl alcohol polyoxyethylene ether phosphate, 10 parts of isotridecyl polyoxyethylene ether phosphate, 3000 parts of glycerol random polyether GPE-3000 parts, butanol random polyether BRE 4 parts of -1500, 5 parts of lauryl alcohol random polyether CPE-1500, 3 parts of diol distearate, 4 parts of propylene glycol monostearate in a stirring tank, stirring for 3 hours at a temperature of 100°C; 0.5 parts of polyacrylamide, 1 part of polyethylene glycol distearate, 2 parts of oxalic acid, in the reactor, stirred at 75°C for 1 hour; take 0.5 parts of ethylene glycol monobutyl phosphate sodium , 1 part of dihydroxytetramethyldecyne, and 48 parts of water were sequentially added to the prepared material, and stirred at 50°C for 1 hour to prepare a concrete defoamer.

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Abstract

The invention discloses a concrete defoamer and a preparation method thereof. The raw materials are composed of the following components by weight: 15-30 parts by weight of fatty alcohol polyoxyethylene ether phosphate, 8-15 parts by weight of random polyether, 5-10 parts by weight of emulsifier, 1-2 parts by weight of wetting agent, 1-5 parts by weight of thickener, 1-2 parts by weight of compounding agent and 35-55 parts by weight of water. The fatty alcohol phosphate introduced into the concrete defoamer of the present invention has the excellent properties of nonionic surfactants, anionic surfactants and phosphate ester surfactants, has good compatibility and stability, and makes defoaming The chemical properties of the agent are stable, there is no precipitation, and it is not easy to separate, and it can maintain stability for a long time.

Description

technical field [0001] The invention belongs to the technical field of building admixtures, and in particular relates to a concrete defoamer and a preparation method thereof. Background technique [0002] In industrial production and daily life, a lot of foam will be produced due to various reasons. Professor Zhao Guoxi, a famous physicist, believes that foam is a dispersion system in which gas is dispersed in liquid. Gas is a dispersed phase (discontinuous phase), and liquid is a dispersion medium (continuous phase). The bubbles in the liquid rise to the liquid surface and form a small amount of liquid. A collection of gas bubbles separated by a liquid film. Foam itself is a thermodynamically unstable system. The existence of foam will directly affect production efficiency, cause waste of raw materials and products, affect product quality, and sometimes cause serious consequences. A defoamer is a substance that suppresses foam generation or eliminates foam that has alrea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38C04B24/32C04B103/50
CPCC04B40/0039C04B2103/50C04B24/243C04B24/32C04B24/38C04B24/085C04B24/16C04B24/2641C04B24/026C04B24/2652C04B24/04
Inventor 李格丽方云辉林艳梅钟丽娜林添兴
Owner KZJ NEW MATERIALS GROUP CO LTD