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Composite cement enhanced grinding aid containing amide polyamine polycarboxylic acids and preparation method therefor

A technology containing amide polyamine polycarboxylic acid and amide polyamine polycarboxylic acid is applied in the field of composite cement reinforced grinding aid and its preparation, and can solve the problems that surface active groups are difficult to achieve multiple complementarity, and comprehensive performance is not ideal. To achieve the effect of improving cement reinforcement and grinding aid, increasing the output per hour, and good adaptability

Active Publication Date: 2015-06-10
史才军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of the chemical structure of polycarboxylic acid unsaturated monomer raw materials, it is difficult for the surface active groups to achieve multi-complementation, so its comprehensive performance is not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The composite cement reinforced grinding aid AC1 containing amide polyamine polycarboxylic acid in this embodiment is made of the following mass percentages of raw materials: 25% amide polyamine polycarboxylic acid with a solid content of 27.5%, triethanolamine 7%, triiso Propanolamine 5%, diethanol monoisopropanolamine 5%, diethylene glycol 2%, sodium lignin sulfonate 2%, sodium lauryl sulfate 4%, waste molasses 3%, water 47%.

[0020] The preparation method includes the following steps:

[0021] (1) Inject amide polyamine polycarboxylic acid and water into the reactor according to the predetermined mass percentage, stir and heat to 40°C, then add sodium lignosulfonate according to the predetermined mass percentage, and stir for 15 minutes;

[0022] (2) Add sodium lauryl sulfate according to the predetermined mass percentage, stir for 8 minutes, and then add waste molasses according to the predetermined mass percentage and stir for 20 minutes;

[0023] (3) Cool the resulting s...

Embodiment 2

[0025] The composite cement reinforced grinding aid AC2 containing amide polyamine polycarboxylic acid in this embodiment is made of the following mass percentages of raw materials: amide polyamine polycarboxylic acid 30% solid content 27.5%, triethanolamine 6%, triiso Propanolamine 4%, diethanol monoisopropanolamine 5%, diethylene glycol 2%, sodium lignin sulfonate 2%, sodium lauryl sulfate 4%, waste molasses 3%, water 44%.

[0026] The preparation method is the same as in Example 1.

Embodiment 3

[0028] The composite high-efficiency cement reinforced grinding aid AC3 containing amide polyamine polycarboxylic acid in this embodiment is made of the following mass percentages of raw materials: solid content 27.5% of amide polyamine polycarboxylic acid 35%, triethanolamine 6%, three Isopropanolamine 4%, diethanol monoisopropanolamine 4%, diethylene glycol 2%, sodium lignosulfonate 2%, sodium lauryl sulfate 4%, waste molasses 3%, water 40%.

[0029] The preparation method is the same as in Example 1.

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Abstract

Provided are a composite cement enhanced grinding aid containing amide polyamine polycarboxylic acids and a preparation method therefor. The composite cement enhanced grinding aid is prepared from the following raw materials, by weight, 20-60% of amide polyamine polycarboxylic acids, 4-15% of triethanolamine, 2-12% of triisopropanolamine, 2-10% of diethanolisopropanolamine, 1.5-8.0% of diglycol, 1-6% of sodium lignosulfonate, 2.5-10.0% of sodium lauryl sulfate, 1-8% of waste molasses and 20-60% of water. The invention also comprises a preparation method for the composite cement enhanced grinding aid containing amide polyamine polycarboxylic acids. The obtained composite cement enhanced grinding aid has obvious effects at aspects of raising the machine-hour output, increasing fluidity of materials in grinding and increasing cement strength, and has good adaptability with concrete admixtures.

Description

technical field [0001] The invention relates to a composite cement reinforced grinding aid and a preparation method thereof, in particular to a composite cement reinforced grinding aid containing amide polyamine polycarboxylic acid and a preparation method thereof. Background technique [0002] The use of cement grinding aids can improve the grinding efficiency of the ball mill and the mill output per unit time, reduce the energy consumption and loss of the mill, so as to achieve the purpose of reducing the cost of cement production. There are two types of cement grinding aids widely used at home and abroad, liquid and powder. Most of their basic components belong to organic surface active substances, mainly including amines, alcohols, alcohol amines, lignosulfonates, fatty acids, etc. This kind of compound grinding aid has good grinding aid and strengthening effect, but its performance stability is poor and it is sensitive to the change of dosage. With the increasing scarc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38C04B24/12C04B103/52
Inventor 史才军龙兰
Owner 史才军