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High-efficiency ceramic water reducing agent and preparation method thereof

A technology of ceramic water reducing agent and water reducing agent, which is applied in the field of water reducing agent, can solve the problems of difficulty in popularization, loss of versatility, and ineffective effect, and achieve the effects of good versatility, reduced water content, and reduced glaze shrinkage

Inactive Publication Date: 2009-12-23
HANSHAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When these water reducers are used in ceramic slurry, there are disadvantages such as large dosage and ineffective effect.
A small number of ceramic companies use organic water reducers and inorganic water reducers in combination. Although it can achieve certain effects, the developed water reducers will lose their versatility due to the difference in clay mineral raw materials, so it is difficult to popularize them.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The addition ratio of each of the following components is all percentages by weight:

[0016] First pass N into a reaction vessel 2 Remove O 2 , add polyethylene glycol 50%, polymerization inhibitor hydroquinone 1%, catalyst p-toluenesulfonic acid 1%, make it all dissolve when the temperature rises to 60°C, then add 8% methacrylic acid, and then heat up to 115 The esterification reaction was carried out at ℃, and the constant temperature reaction was carried out for 5 hours to obtain a macromonomer for later use; this reaction was carried out under anhydrous conditions;

[0017] In a reaction vessel, first add an appropriate amount of distilled water, and pass through the protective gas N 2 Remove O 2 , when the temperature is at 80°C, add the above-mentioned spare macromonomer. After the temperature is stable, add dropwise a mixed solution composed of 15% methacrylic acid, 8% allyl sodium sulfonate and 15% hydroxyethyl acrylate and trigger Potassium persulfate 2%, ...

Embodiment 2

[0019] The addition ratio of each of the following components is all percentages by weight:

[0020] First pass N into a reaction vessel 2 Remove O 2 , add polyethylene glycol 45%, polymerization inhibitor hydroquinone 0.5%, catalyst p-toluenesulfonic acid 1.5%, make it all dissolve when the temperature rises to 60 ℃, then add maleic anhydride 8%, and then heat up to 120 The esterification reaction was carried out at ℃, and the constant temperature reaction was carried out for 5 hours to obtain a macromonomer for later use; this reaction was carried out under anhydrous conditions;

[0021] In a reaction vessel, first add an appropriate amount of distilled water, and pass through the protective gas N 2 Remove O 2 , when the temperature is at 80°C, add the above-mentioned spare macromonomer, after the temperature stabilizes, add dropwise a mixed solution composed of 18% methacrylic acid, 7% sodium allyl sulfonate and 17% hydroxyethyl acrylate and trigger Potassium persulfate...

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PUM

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Abstract

The invention provides a high-efficiency ceramic water reducing agent and a preparation method thereof. The high-efficiency ceramic water reducing agent comprises the following components by weight percent: 35 to 60 polyoxyalkylene, 0 to 10 methacrylic acid or maleic anhydride, 0 to 20 methacrylic acid, 0 to 10 sodium allyl sulfonate, 0 to 20 2-hydroxyethyl acrylate, 1.0 to 3.0 potassium persulfate, 0.5 to 1.0 hydroquinone and 1.0 to 2.0 p-toluenesulfonic acid, and the weight percent of the components is not zero. The high-efficiency ceramic water reducing agent can greatly reduce the water content of slurry after being added into ceramic pulp and satisfies fluidity needed by ceramic production. The high-efficiency ceramic water reducing agent is added into a glaze material, the glaze material has good fluidity and proper viscocity under a lower water-content condition, greatly reduces a glaze cutting phenomenon, and the like and increases product quality. The high-efficiency ceramic water reducing agent has good universality and can be suitable for various clay mineral materials.

Description

technical field [0001] The invention relates to a water reducer, in particular to a ceramic water reducer and a preparation method thereof. Background technique [0002] Ceramic slurry superplasticizer is a kind of ceramic additive, also known as dispersant, which can reduce the water content of the mud as much as possible after use, and achieve the required fluidity, reduce the water content of the billet, reduce the drying energy consumption, and improve It can improve work efficiency, reduce the porosity of ceramic products and improve the strength of ceramic products. In addition, the application of water reducing agent can also play a role of lubrication and grinding aid between particles in the mud, and improve the efficiency of ball milling. Adding a water reducing agent to the glaze can improve the fluidity of the glaze, make it have an appropriate viscosity and good fluidity under the condition of low moisture content, avoid glaze shrinkage and other phenomena, and...

Claims

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Application Information

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IPC IPC(8): C04B35/634C04B41/86
Inventor 陈春明
Owner HANSHAN NORMAL UNIV
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