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Cement grinding aid and preparation method thereof

A cement grinding aid, water-based technology, applied in the field of cement grinding aid and its preparation, can solve the problems of cement quality and durability, large fluctuations in product performance, insufficient layered settlement, etc., and achieve low price and simple preparation method Easy to operate and improve the effect of powder grinding

Active Publication Date: 2018-11-06
吉林省希普水泥助磨剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects in the prior art, the present invention provides a cement grinding aid and a preparation method thereof. The grinding aid overcomes the more or less large dosage, high price, stratification and settlement of traditional cement grinding aids. Insufficient, the product performance fluctuates greatly, contains harmful and toxic substances to the human body, and the technical problems of cement quality and durability are affected. The grinding strengthening effect is remarkable, and the advantages of safety and environmental protection are used

Method used

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  • Cement grinding aid and preparation method thereof
  • Cement grinding aid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A cement grinding aid is prepared from the following raw materials in parts by weight: 50 parts of water-based polyhydroxy copolymer and 30 parts of modified hyperbranched polyethyleneimine.

[0025] The preparation method of the water-based polyhydroxyl copolymer comprises the following steps: 20 g of triethanolamine oleic acid soap, 10 g of allyl succinimidyl carbonate, 20 g of eugenol rutinoside, and 20 g of bistrimethylsilylated vinyl Dissolve 10g of phosphate ester in 100g of dimethyl sulfoxide to form a solution, then add 2g of azobisisobutyronitrile into the solution, place it in a microwave oven, and carry out microwave polymerization reaction under a nitrogen atmosphere for 10 minutes, take it out after the reaction, and pour it into acetone The polymer was precipitated out, filtered with suction, put into a vacuum oven and baked at 60° C. for 10 hours to obtain a polyhydroxy copolymer; the microwave polymerization polymerization condition was: microwave power 5...

Embodiment 2

[0029] A cement grinding aid is prepared from the following raw materials in parts by weight: 53 parts of water-based polyhydroxy copolymer and 33 parts of modified hyperbranched polyethyleneimine.

[0030] The preparation method of the water-based polyhydroxyl copolymer comprises the following steps: 20 g of triethanolamine oleic acid soap, 10 g of allyl succinimidyl carbonate, 20 g of eugenol rutinoside, and 20 g of bistrimethylsilylated vinyl Dissolve 10 g of phosphate ester in 115 g of N,N-dimethylformamide to form a solution, then add 2.5 g of azobisisoheptanonitrile to the solution, place it in a microwave oven, and carry out microwave polymerization reaction under a helium atmosphere for 11 minutes. After the reaction, take it out, pour it into acetone to precipitate the polymer, filter it with suction, put it in a vacuum oven and dry it at 63°C for 11 hours to obtain a polyhydroxy copolymer; the microwave polymerization polymerization condition is: microwave power 600W....

Embodiment 3

[0034] A cement grinding aid is prepared from the following raw materials in parts by weight: 55 parts of water-based polyhydroxy copolymer and 35 parts of modified hyperbranched polyethyleneimine.

[0035] The preparation method of the water-based polyhydroxyl copolymer comprises the following steps: 20 g of triethanolamine oleic acid soap, 10 g of allyl succinimidyl carbonate, 20 g of eugenol rutinoside, and 20 g of bistrimethylsilylated vinyl Dissolve 10g of phosphate ester in 125g of N-methylpyrrolidone to form a solution, then add 3g of azobisisobutyronitrile into the solution, place it in a microwave oven, and carry out microwave polymerization reaction under neon gas atmosphere for 12 minutes, take it out after the reaction, pour Put the polymer in acetone to precipitate the polymer, filter it with suction, put it in a vacuum drying oven and bake it at 65° C. for 13 hours to obtain a polyhydroxy copolymer; the microwave polymerization polymerization condition is: microwa...

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Abstract

The invention discloses a cement grinding aid. The cement grinding aid is made of the following raw materials by weight: 50-60 parts of aqueous polyhydroxy copolymer and 30-40 parts of modified hyperbranched polyethyleneimine. A preparation method of the cement grinding aid is further disclosed. The preparation method includes the following steps: mixing the raw materials uniformly in proportion,and then grinding to obtain the cement grinding aid. The cement grinding aid has the advantages of low production cost, low dosage, effective improvement of cement lubricity and output per machine, remarkable improvement of grinding aid effects, safety and environmental protection.

Description

technical field [0001] The invention relates to the technical field of cement production, in particular to a cement grinding aid and a preparation method thereof. Background technique [0002] In recent years, with the development of the economy and the improvement of living standards, various high-rise buildings have sprung up like mushrooms after rain. An essential class of base material in the construction of these high-rise buildings is cement. The production and sales volume of cement in my country is huge, and the cement industry, as a high-pollution and high-energy-consuming industry, has attracted much attention for its energy saving and consumption reduction. Among them, the use of cement grinding aids in the cement production process and the promotion of energy-saving cement grinding technologies are important measures to develop green energy-saving cement and build a resource-saving and environment-friendly society. [0003] Cement grinding aid is a chemical add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/24C04B103/52
CPCC04B24/26C04B24/2652C04B24/28C04B24/42C04B40/0039C04B2103/52C08F226/06C08G73/0213C08F230/085
Inventor 程业秀
Owner 吉林省希普水泥助磨剂有限公司
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