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Grinding aid as well as preparation method and application thereof

A grinding aid and unsaturated technology, applied in the field of grinding aid and its preparation, can solve the problems of high cost of grinding aid, difficulty in taking into account early strength and late strength, and difficulty in large-scale promotion and use.

Active Publication Date: 2021-09-07
HUNAN ZHONGYAN BUILDING MATERIAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regarding the improvement of early strength, the industry can achieve it by increasing the proportion of alcohol amine substances in grinding aids, but because of the high price of alcohol amine substances, this method makes grinding aids costly and difficult to promote on a large scale use
Other methods of improving the early strength of cement through grinding aids are difficult to balance the early strength and later strength
[0004] To sum up, the existing methods of improving the early strength of cement through grinding aids are either costly or not effective enough

Method used

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  • Grinding aid as well as preparation method and application thereof
  • Grinding aid as well as preparation method and application thereof
  • Grinding aid as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The present embodiment has prepared a kind of grinding aid, and concrete process is:

[0044] S1. Weigh 10 g of sodium thiosulfate, 5 g of sodium chloride, 10 g of calcium nitrate, and 43 g of water, add them to the reaction vessel, stir for 10 min to dissolve;

[0045] S2. Add 18 g of diethanol monoisopropanolamine, 10 g of polymeric polyol and 4 g of itaconic acid to the system obtained in step S1, perform low-frequency ultrasonic oscillation for 5 min (frequency is 50-80 Hz), and form a uniform mixed solution, which is the aid Abrasives.

[0046] Comparative examples 1~9 prepared a kind of grinding aid respectively, and the difference of concrete process and embodiment 1 is:

[0047] (1) The specific components of the raw materials are different, and the specific components are shown in Table 1.

[0048]The raw material composition of grinding aid in table 1 embodiment 1 and comparative examples 1~9

[0049]

[0050] Wherein, the unfilled cells represent no add...

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Abstract

The invention discloses a grinding aid as well as a preparation method and application thereof, and belongs to the technical field of building materials. The grinding aid is prepared from the following raw materials: diethanolisopropanolamine, polymeric polyol, unsaturated polycarboxylic acid, water-soluble thiosulfate, water-soluble chlorine salt and water-soluble calcium salt. According to the grinding aid provided by the invention, through matching of the raw material components, when the grinding aid is applied to cement preparation, the early strength of the obtained cement can be improved on the premise of ensuring the grinding efficiency.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a grinding aid and its preparation method and application. Background technique [0002] With the continuous development of the basic construction industry, the application of grinding aids in the cement industry is becoming more and more extensive. At present, the grinding aids used in cement plants are mainly to improve the grinding situation and reduce energy consumption. The traditional way to reduce energy consumption is to carry out technical transformation of cement production process and equipment, but this way has huge initial construction investment, and it is difficult to recover the cost in a short period of time, resulting in low enthusiasm of cement enterprises, and the use of cement grinding aids to save energy and reduce costs Therefore, the development and research of cement grinding aids has become the first choice for energy saving and e...

Claims

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Application Information

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IPC IPC(8): C04B7/52C04B7/38
CPCC04B7/52C04B7/38Y02P40/10
Inventor 贺任幸余彬钟康岳健霍小伟
Owner HUNAN ZHONGYAN BUILDING MATERIAL TECH CO LTD
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