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A kind of modified triethanolamine grinding aid

A technology of triethanolamine and triethanolamine salt, which is applied in the field of cement grinding aids, can solve the problems of rising production costs of grinding aids, insignificant strength growth, and high raw material prices, and achieve the elimination or weakening of aggregation and adhesion, solubility and Good stability and the effect of preventing particle agglomeration

Active Publication Date: 2019-11-01
GUILIN HUAYUE ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Commercially available cement grinding aids use triethanolamine as the main raw material. Triethanolamine has a good grinding aid effect on cement powder, but its raw material price is high, and the production cost of grinding aids continues to rise. Triethanolamine grinding aid effect and early strength The effect is good, but the strength increase is not obvious in the later stage, and the dust is relatively large during use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: make modified triethanolamine grinding aid

[0023] The formula is: a modified triethanolamine grinding aid, which is composed of the following components by weight: 10 parts of the first modified triethanolamine, 20 parts of the second modified triethanolamine, 6 parts of molasses, 4 parts of emulsified silicone oil, 2 parts of sodium pyrophosphate, 80 parts of water, the first modified triethanolamine is characterized by improving the later strength of cement, and the second modified triethanolamine is characterized by improving the compatibility of cement and water reducing agent.

[0024] The above-mentioned emulsified silicone oil is composed of the following components by weight: 20 parts of methyl polysiloxane, 2 parts of isopropanol, 6 parts of sodium lauryl sulfate, 2,6-di-tert-butyl-4-methylphenol 10 parts, 0.5 parts of emulsifier, and 70 parts of deionized water are emulsified; the preparation of emulsified silicone oil includes the following st...

Embodiment 2

[0032] Embodiment 2: make modified triethanolamine grinding aid

[0033] The formula is: a modified triethanolamine grinding aid, which is composed of the following components by weight: 15 parts of the first modified triethanolamine, 30 parts of the second modified triethanolamine, 8 parts of molasses, 7 parts of emulsified silicone oil, 5 parts of sodium pyrophosphate and 100 parts of water, the first modified triethanolamine is characterized by improving the later strength of cement, and the second modified triethanolamine is characterized by improving the compatibility between cement and water reducing agent.

[0034] The above-mentioned emulsified silicone oil is composed of the following components by weight: 25 parts of methyl polysiloxane, 3 parts of isopropanol, 8 parts of sodium lauryl sulfate, 2,6-di-tert-butyl-4-methylphenol 15 parts, 0.8 parts of emulsifier, and 80 parts of deionized water are emulsified; the preparation of emulsified silicone oil includes the fol...

Embodiment 3

[0042] Embodiment 3: make modified triethanolamine grinding aid

[0043] The formula is: a modified triethanolamine grinding aid, which is composed of the following components by weight: 12 parts of the first modified triethanolamine, 24 parts of the second modified triethanolamine, 7 parts of molasses, 5 parts of emulsified silicone oil, 3 parts of sodium pyrophosphate, 90 parts of water, the first modified triethanolamine is characterized by improving the later strength of cement, and the second modified triethanolamine is characterized by improving the compatibility of cement and water reducing agent.

[0044] The above-mentioned emulsified silicone oil is composed of the following components by weight: 23 parts of methyl polysiloxane, 2.5 parts of isopropanol, 7 parts of sodium lauryl sulfate, 2,6-di-tert-butyl-4-methylphenol 12 parts, 0.6 parts of emulsifier, and 76 parts of deionized water are emulsified; the preparation of emulsified silicone oil includes the following ...

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Abstract

The invention relates to a modified triethanolamine grinding aid. The modified triethanolamine grinding aid comprises the following components: first modified triethanolamine, second modified triethanolamine, molasses, silicone emulsion, sodium pyrophosphate and water. The modified triethanolamine grinding aid is absorbed on surfaces of solid particles, changes the structural property of particlesurfaces, prevents particle agglomeration, improves the flowability of materials, can effectively prevent closure of new cracks, accelerates expansion of material cracks, can rapidly eliminate or weaken aggregation and adhesion among particles, and ensures that the grinding efficiency is improved by 12 percent or more, the 3d strength is improved by greater than or equal to 5MPa, 28d strength is improved by greater than or equal to 6MPa, the initial setting time is greater than or equal to 200min, and the final setting time is smaller than or equal to 300min.

Description

technical field [0001] The invention relates to a cement grinding aid, in particular to a modified triethanolamine grinding aid. Background technique [0002] In the grinding process of cement clinker, adding a small amount of additional substances (liquid or solid substances) can significantly improve the grinding efficiency or reduce energy consumption without damaging the performance of cement. The chemical additives are commonly referred to as: Cement grinding aid. Cement grinding aid is a chemical additive that improves the grinding effect and performance of cement. It can significantly increase the output of cement table, the strength of cement of all ages, and improve its fluidity. Cement grinding aids can greatly reduce the phenomenon of electrostatic adsorption and ball formation during the grinding process, and can reduce the tendency of re-agglomeration of ultrafine particles formed during the grinding process. Cement grinding aids can also significantly improve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/42C04B103/52
CPCC04B40/0046C04B2103/52C04B24/122C04B24/166C04B24/26C04B24/16C04B24/10C04B22/16C04B22/002C04B24/42C04B24/02C04B2103/0068
Inventor 黄煌
Owner GUILIN HUAYUE ENVIRONMENTAL PROTECTION TECH CO LTD
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