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Modified cardanol ceramic dispersant and preparation method thereof

The technology of a ceramic dispersant and cardanol is applied in the field of modified cardanol ceramic dispersant and its preparation, which can solve the problems of side effects, easy coagulation, and narrow degumming range, achieve good fluidity and viscosity, and simple production process. , the condition is easy to control the effect

Active Publication Date: 2016-10-26
黄杏兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These dispersants have disadvantages such as narrow dissolving range, easy solidification in a short time, poor adaptability and side effects.
A small number of ceramic enterprises use organic dispersants and inorganic dispersants in combination. Although it can achieve certain effects, the dispersants developed are not universal and cannot be applied to various clay mineral raw materials, so it is difficult to popularize and use them.

Method used

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  • Modified cardanol ceramic dispersant and preparation method thereof
  • Modified cardanol ceramic dispersant and preparation method thereof
  • Modified cardanol ceramic dispersant and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0023] A preparation method of a modified cardanol ceramic dispersant is realized by the following steps:

[0024] (1) start stirring after adding cardanol, unsaturated organic amine and water in the reactor, and start heating to heat up, when temperature rises to 85~100 ℃, add formaldehyde, and react 1~3 hour after adding;

[0025] (2) then add sodium hypophosphite and unsaturated carboxylic acid and its salt in turn, stir evenly, when the temperature rises to 80~120 ℃, start to drip the initiator solution whose mass percentage concentration is 1~10%, this initiator The solution is prepared from the initiator and part of the water, the dropping time is controlled at 1 to 3 hours, the temperature during dropwise addition is controlled at 85 to 120°C, and the temperature is lowered after the dropwise addition is completed, that is, the modification is obtained. Cardanol ceramic dispersant.

Embodiment 1

[0028] A modified cardanol ceramic dispersant is made of the following raw material components in parts by weight:

[0029]

[0030]

[0031] Its preparation method is realized by the following steps:

[0032] (1) start stirring after adding 17 parts of cardanols, 2 parts of diethylenetriamine and 38.5 parts of water in the reactor, and start heating to heat up, when the temperature rises to 90 ℃, add 6.5 parts of formaldehyde, and react 1.5 parts after adding Hour;

[0033] (2) add 3 parts of sodium hypophosphite and 8 parts of acrylic acid in turn, stir evenly, when the temperature rises to 95 ℃, start to drip the sodium persulfate solution whose mass percentage concentration is 2%, this sodium persulfate solution is changed from 0.5 part Sodium persulfate and 24.5 parts of water are prepared, the dropping time is controlled at 1.5 hours, the temperature during dropwise addition is controlled at 96°C, and after the dropping is completed, the temperature is lowered and...

Embodiment 2

[0035] A modified cardanol ceramic dispersant is made of the following raw material components in parts by weight:

[0036]

[0037] Its preparation method is realized by the following steps:

[0038] (1) start stirring after adding 19 parts of cardanol, 2.5 parts of triethylenetetramine and 9 parts of water in the reaction kettle, and start heating to heat up, when temperature rises to 87 ℃, add 9 parts of formaldehyde, add rear reaction 2 Hour;

[0039] (2) add 3.5 parts of sodium hypophosphite and 7 parts of sodium acrylate in turn, stir evenly, when the temperature rises to 90 ℃, start to drip the sodium persulfate solution whose mass percentage concentration is 2%, this sodium persulfate solution is changed from 1 It is prepared with 49 parts of sodium persulfate and 49 parts of water, the dropping time is controlled at 2 hours, the temperature during dropwise addition is controlled at 93° C., and the temperature is lowered after the dropping is completed to obtain th...

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Abstract

The invention provides a modified cardanol ceramic dispersant and a preparation method thereof. The preparation method comprises the following steps that 1, cardanol, unsaturated organic amine and water are added into a reaction kettle, stirring is started, heating starts to be conducted to increase the temperature, when the temperature is increased to 85 DEG C to 100 DEG C, formaldehyde is added, and after formaldehyde is completely added, reacting is conducted for 1-3 hours; 2, sodium hypophosphite and unsaturated carboxylic acid and salt thereof are sequentially added and stirred to be uniform, and when the temperature is increased to 80 DEG C to 120 DEG C, an initiator solution with the mass percentage concentration of 1% to 10% is dropwise added, wherein the initiator solution is prepared from an initiator and part of water, the dropwise adding time is controlled to be within the range of 1 hour to 3 hours, and the temperature is controlled at 85 DEG C to 120 DEG C when dropwise adding is conducted, after dropwise adding is completed, the temperature is decreased, discharging is conducted, and then the modified cardanol ceramic dispersant is obtained.

Description

technical field [0001] The invention belongs to the technical field of ceramic dispersant preparation, in particular to a modified cardanol ceramic dispersant and a preparation method thereof. Background technique [0002] Ceramic dispersants, also known as ceramic decoagulants, debonders, water reducing agents and diluents, etc., mainly make ceramic mud maintain good fluidity for a certain period of time, that is, reduce the surface energy of particles and reduce the solid-liquid relationship. The interfacial tension between the two can better and effectively infiltrate the small solid particles to obtain a slurry with high solid content and good fluidity. The main function of adding dispersant is to prevent the agglomeration of particles, so that the components of the raw materials are uniformly dispersed in the medium, the viscosity of the slurry is obviously reduced, the rheology is good, and the solid content can be greatly improved, the properties of the slurry are uni...

Claims

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Application Information

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IPC IPC(8): C08F283/00C08F220/06C08G14/073C04B35/634
CPCC04B35/63444C08F283/00C08G14/06C08F220/06
Inventor 刘碧霞
Owner 黄杏兰