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Preparation method of ceramic water reducing agent

A ceramic water-reducing agent and a modification technology are applied in the field of ceramic water-reducing agent and its preparation, and can solve the problems that the performance stability needs to be further improved, the cost of organic small-molecule water-reducing agent is high, and the cost of high-molecular ceramic water-reducing agent is high. , to achieve low dependence on reaction equipment, significant water reduction and dispersion effects, and good chemical and thermal stability.

Active Publication Date: 2019-01-25
佛山一宇卫士陶瓷材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects in the prior art, the present invention provides a ceramic water reducer and its preparation method, the preparation method is simple and easy, not highly dependent on equipment, and the raw materials are easy to obtain; the prepared ceramic water reducer overcomes the Traditional inorganic superplasticizers have limited dispersing effect, large amount of addition, and poor stability of the prepared mud. Organic small molecule superplasticizers have relatively high cost and poor stability. High-molecular ceramic superplasticizers have high cost and performance stability remains to be seen. Further improved technical issues; it has the advantages of strong versatility, small dosage, remarkable water reduction and dispersion effects, good chemical and thermal stability, and strong hydration ability

Method used

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  • Preparation method of ceramic water reducing agent
  • Preparation method of ceramic water reducing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A preparation method of a ceramic water reducer, comprising the steps of:

[0039] ⅠN-[β-(N,N-diacetoxy)aminoethyl]-γ-(N-acetoxy)aminopropyltrimethoxysilane modified polyethylene glycol monoallyl ether: equipped with stirring Add N-[β-(N,N-diacetoxy)aminoethyl]-γ-(N-acetoxy)aminopropyltrimethoxysilane 6g , polyethylene glycol monoallyl ether 25g, chloranil 0.5g, isopropanol 100g and dibutyltin dilaurate 3g, raise the temperature to 80°C, then add 2g of distilled water dropwise, and stir the reaction at 95°C After 15 hours, it was precipitated in ether, and the precipitated product was washed 3 times with isopentane, and then the solvent was removed by rotary evaporation to obtain N-[β-(N,N-diacetoxy)aminoethyl]-γ-(N -Acetoxy)aminopropyltrimethoxysilane modified polyethylene glycol monoallyl ether;

[0040] II Preparation of quaternary ammonium salt 15 polymeric monomers based on 1-(2-(4-aminophenyl) ethyl) amino-1-(hexaglucosyl) deoxysorbitol: 1-(2-( 5.1 g of 4-amino...

Embodiment 2

[0046] A preparation method of a ceramic water reducer, comprising the steps of:

[0047] ⅠN-[β-(N,N-diacetoxy)aminoethyl]-γ-(N-acetoxy)aminopropyltrimethoxysilane modified polyethylene glycol monoallyl ether: equipped with stirring Add N-[β-(N,N-diacetoxy)aminoethyl]-γ-(N-acetoxy)aminopropyltrimethoxysilane 6g , 28g of polyethylene glycol monoallyl ether, 0.5g of l,4-naphthoquinone, 115g of tetrahydrofuran and 3g of dibutyltin dilaurate, raise the temperature to 82°C, add 2g of distilled water dropwise, and stir the reaction at 98°C After 16.5 hours, it was precipitated in ether, and the precipitated product was washed 4 times with isopentane, and the solvent was removed by rotary evaporation to obtain N-[β-(N,N-diacetoxy)aminoethyl]-γ-(N -Acetoxy)aminopropyltrimethoxysilane modified polyethylene glycol monoallyl ether;

[0048] II Preparation of quaternary ammonium salt 15 polymeric monomers based on 1-(2-(4-aminophenyl) ethyl) amino-1-(hexaglucosyl) deoxysorbitol: 1-(2-( ...

Embodiment 3

[0054] A preparation method of a ceramic water reducer, comprising the steps of:

[0055] ⅠN-[β-(N,N-diacetoxy)aminoethyl]-γ-(N-acetoxy)aminopropyltrimethoxysilane modified polyethylene glycol monoallyl ether: equipped with stirring Add N-[β-(N,N-diacetoxy)aminoethyl]-γ-(N-acetoxy)aminopropyltrimethoxysilane 6g , polyethylene glycol monoallyl ether 30g, chloranil 0.5g, ethylene glycol 125g and dibutyltin dilaurate 3g, raise the temperature to 85°C, then add 2g of distilled water dropwise, and stir the reaction at 100°C After 17.5 hours, it was precipitated in ether, and the precipitated product was washed 5 times with isopentane, and then the solvent was removed by rotary evaporation to obtain N-[β-(N,N-diacetoxy)aminoethyl]-γ-(N -Acetoxy)aminopropyltrimethoxysilane modified polyethylene glycol monoallyl ether;

[0056] II Preparation of quaternary ammonium salt 15 polymeric monomers based on 1-(2-(4-aminophenyl) ethyl) amino-1-(hexaglucosyl) deoxysorbitol: 1-(2-( 51 g of 4...

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Abstract

The invention discloses a preparation method of a ceramic water reducing agent. The preparation method comprises the following steps: (1) modifying polyethylene glycol monoallyl ether by utilizing N-[beta-(N,N-diacetoxyl)aminoethyl]-gamma-(N-acetoxyl)aminopropyltrimethoxysilane; (2) preparing a quaternary ammonium salt type 15 polymerized monomer based on 1-(2-(4-aminophenyl)ethyl)amino-1-(hexaglucosyl)deoxysorbitol; (3) polymerizing; (4) modifying octo(6-bromo-6-deoxy)-gamma-cyclodextrin by adenosine disodium triphosphate; (5) preparing the water reducing agent. The ceramic water reducing agent disclosed by the invention has the advantages of strong commonality, small dosage, remarkable water reduction and dispersion effects, good chemical and thermal stability and strong hydration capability.

Description

technical field [0001] The invention relates to the technical field of ceramic production aids, in particular to a ceramic water reducer and a preparation method thereof. Background technique [0002] Due to the advantages of light weight, high strength, heat resistance and chemical corrosion resistance, ceramics are widely used in daily tableware, art, building sanitation, electric power industry and other fields. In the ceramic production process, the most widely used additive is the ceramic superplasticizer. Its role in the ceramic production process is to improve the fluidity of the glaze through the zeta potential of the system, so that it can be used in the case of reduced moisture content. , proper viscosity, good fluidity, good stability, avoid glaze shrinkage and other phenomena, improve the uniformity of clay particles and prevent settlement, thereby improving product quality; at the same time, it can also shorten the hardening time, increase strength, and reduce d...

Claims

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Application Information

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IPC IPC(8): C08G81/02C04B24/16C04B103/30
CPCC04B24/166C04B2103/302C08G81/02
Inventor 万章文曹冰朱元德
Owner 佛山一宇卫士陶瓷材料有限公司
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