Composite ceramic diluent with green body reinforcing effect and application method thereof

A composite ceramic and green body reinforcement technology, applied in the field of building ceramic materials, can solve problems such as economic loss, high breakage rate, forming defects, etc., achieve broad market prospects, improve green body strength, and reduce water content.

Inactive Publication Date: 2013-11-20
JINGDEZHEN CERAMIC INSTITUTE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The powder obtained after ball milling needs to be pressed into shape. The body strength of wall and floor tiles is poor, resulting in easy damage to the dry body. However, the porcelain brick formula contains more sterile raw materials, and the body strength is even worse.
In the production of large-scale wall and floor tiles, the damage rate of the green body is as high as 10% to 30%, which seriously affects the produ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Add 50Kg of acrylic acid, 2.5Kg of ammonium persulfate, 120Kg of isopropanol, and 2Kg of sodium bisulfite to water at 78°C for polymerization reaction for 1 hour, then add 0.6Kg of sodium hypophosphite to terminate the reaction, then cool down to 40°C and add 30wt 90Kg of % sodium hydroxide to obtain a sodium polyacrylate polymer with a molecular weight of 6000. The composite ceramic thinner is prepared by mixing sodium metasilicate, sodium humate, sodium polyacrylate polymer and sodium p-toluenesulfonate in a mass ratio of 75:15:9:1. The composite ceramic diluent is added to the building ceramic body formula soil at a mass percentage of 0.4% for ball milling. The building ceramic formula is as follows: Jinsha 23%, Yujiang Sand 26%, Dengjia stone powder 15%, Xiaosulfan stone powder 16%, Raw talc 2%, Jinxian mud 4%, Bai mud 7%, Jia mud 7%, the flow rate is 40 seconds, the water content is 31%, and the sieve residue is less than 2.4%. After the mud is dried, the strength ...

Embodiment 2

[0034] Add 50Kg of methacrylic acid, 2.2Kg of sodium persulfate, 4.2Kg of potassium hydrogen sulfite, and 5Kg of ferrous sulfate to water at 78°C for polymerization reaction for 1 hour, then add 1Kg of sodium polyphosphate to terminate the reaction, and then cool down to 40°C And add 100Kg of 30wt% sodium hydroxide to obtain a methacrylic acid polymer with a molecular weight of 6000. The composite ceramic thinner is prepared by mixing sodium carbonate, sodium lignosulfonate, methacrylic acid polymer, and dimethyl diallyl ammonium chloride in a mass ratio of 80:10:7:3. The composite ceramic diluent is added to the building ceramic body formula soil by mass percentage 0.4% for ball milling. The building ceramic formula is the same as in Example 1, and the flow rate is 40 seconds, and the water content is 31%. The mud, the sieve residue is less than 2.4 %, after the slurry is dried, the strength of the dry blank is increased by 15%.

Embodiment 3

[0036] 50Kg of butyl acrylate, 2Kg of benzoyl oxide, 140Kg of isopropanol, and 5Kg of tetraethyleneimide were added to 78°C water for polymerization reaction for 1 hour, then 0.5Kg of sodium hypophosphite was added to terminate the reaction, and then the temperature was lowered to 40 ℃ and add 80Kg of 30wt% sodium hydroxide to obtain a butyl acrylate polymer with a molecular weight of 6000. The composite ceramic thinner is prepared by mixing sodium carbonate, sodium lignosulfonate, butyl acrylate polymer and sodium p-toluenesulfonate in a mass ratio of 55:35:9:1. The composite ceramic diluent is added to the building ceramic body formula soil at a mass percentage of 0.4% for ball milling. The building ceramic formula is as follows: coke pit sand 26%, star sand 18%, polishing mud 4%, Dongxiang sand 26%, magnesium 4% texture soil, 4% Guangdong black mud, 3% ball soil, 6% Xinfeng white mud, and 9% Ji'an white mud, the mud with a flow rate of 40 seconds and a moisture content of 3...

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PUM

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Abstract

The invention discloses a composite ceramic diluent with a green body reinforcing effect and an application method thereof. The application method comprises the steps of selecting an inorganic water reducer, a small molecular organic water reducer, a surfactant and a poly(carboxylic acid) polymer; optimizing the addition amounts of the above materials; compositing the above materials according to a certain proportion; and mixing a building ceramic soil material and the composite ceramic diluent uniformly by ball-milling. The prepared composite ceramic diluent is suitable for building ceramic formula soil, can greatly reduce water content in mud slurry, meets fluidity required by ceramic production, saves energy consumption of a spray drying tower and increases output of dry powder. The powder can increase the strength of the green body after being dried and pressed and is an ideal diluting and reinforcing material for the building ceramic mud slurry.

Description

technical field [0001] The invention belongs to the technical field of building ceramic materials, and in particular relates to a composite ceramic diluent with a green body reinforcing effect and a method for using the same. Background technique [0002] At present, in the building ceramics industry, the ball-milled slurry is sent to a spray drying tower to obtain powder, which is then pressed, shaped and fired. Among them, the spray drying process consumes a lot of energy. According to statistics, the average moisture content of the mud entering the tower is about 33-38%, and the moisture content of the powder product leaving the tower is about 6-7%. 60%. Therefore, it is hoped that the slurry entering the spray drying tower has a low moisture content, good fluidity, and good thixotropy. The ceramic diluent can achieve the above purpose through electrostatic repulsion and steric hindrance. [0003] The powder obtained after ball milling needs to be pressed and formed. T...

Claims

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Application Information

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IPC IPC(8): C04B33/13
Inventor 胡飞朱松林付梦乾熊伟
Owner JINGDEZHEN CERAMIC INSTITUTE
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