Preparation method of paint calcium carbonate with high activating rate and low oil absorption value

A technology of calcium carbonate and oil absorption value, which is applied in chemical instruments and methods, dyeing low-molecular organic compound treatment, dyeing high-molecular organic compound treatment, etc. Advanced problems, to achieve the effect of improving compatibility, high activation rate, and high activation rate

Inactive Publication Date: 2017-12-08
贺州钟山县双文碳酸钙新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to provide a kind of preparation method of calcium carbonate for paint with high activation rate and low oil absorption value, so as to solve the problem of hydrophilic and oleophobic surface of existing calcium carbonate, high specific surface energy, and extremely easy agglomeration between particles. Problems such as poor compatibility with polymers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The preparation method of the calcium carbonate for paint with high activation rate and low oil absorption value comprises the following steps:

[0029] S1: Select marble, limestone, etc. transported from the material field to clean and remove impurities, dry the stone to remove surface moisture, and then use a crusher to crush the stone to obtain calcium carbonate fragments;

[0030] S2: transporting the broken calcium carbonate obtained in step S1 into a vertical mill and synchronously adding grinding aids and grinding to obtain calcium carbonate fine stone powder;

[0031] S3: classifying the calcium carbonate fine stone powder prepared in step S2 with a classifier to obtain calcium carbonate powder of 1200-1500 mesh;

[0032] S4: Add the calcium carbonate powder prepared in step S3 into a high-speed mixer, then add triethanolamine oleic acid soap, aluminum triacetylacetonate, and vanadium pentoxide, raise the temperature to 56-65°C, and set the temperature at 1100-1...

Embodiment 1

[0037] A kind of calcium carbonate for paint with high activation rate and low oil absorption value, in parts by weight, comprising the following raw materials: 196 parts of broken calcium carbonate, 5.5 parts of grinding aid, 5 parts of triethanolamine oleic acid soap, aluminum triacetylacetonate 0.6 parts, 0.2 parts of vanadium pentoxide, 0.8 parts of sodium diethylenetriamine pentacarboxylate, 0.3 parts of regulator, 0.6 parts of coupling agent, 2.2 parts of bis(2-ethylhexyl) phthalate, modified 0.6 parts of polyacrylate, 0.4 parts of hexenylbisstearamide, 0.4 parts of 2-(2'-hydroxy-3',5'-di-tert-phenyl)-5-chlorinated benzotriazole, polyacrylamide 0.3 parts, 0.6 parts of stabilizer;

[0038] The grinding aid, in parts by weight, includes the following raw materials: 12 parts of potassium lignosulfonate, 7 parts of polyalcoholamine, and 5 parts of zinc stearate;

[0039] The preparation method of the calcium carbonate for paint with high activation rate and low oil absorpti...

Embodiment 2

[0047] A kind of calcium carbonate for paint with high activation rate and low oil absorption value, in parts by weight, comprising the following raw materials: 185 parts of broken calcium carbonate, 4.6 parts of grinding aid, 3.8 parts of triethanolamine oleic acid soap, aluminum triacetylacetonate 0.4 parts, 0.2 parts of vanadium pentoxide, 0.6 parts of sodium diethylenetriamine pentacarboxylate, 0.2 parts of regulator, 0.5 parts of coupling agent, 1.6 parts of bis(2-ethylhexyl) phthalate, modified 0.4 parts of polyacrylate, 0.3 parts of hexenylbisstearamide, 0.3 parts of 2-(2'-hydroxy-3',5'-di-tert-phenyl)-5-chlorinated benzotriazole, polyacrylamide 0.2 parts, 0.4 parts of stabilizer;

[0048] The grinding aid, in parts by weight, comprises the following raw materials: 9 parts of potassium lignosulfonate, 5 parts of polyalcoholamine, 3 parts of zinc stearate;

[0049] The preparation method of the calcium carbonate for paint with high activation rate and low oil absorption...

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Abstract

The invention discloses a preparation method of paint calcium carbonate with high activating rate and low oil absorption value. The paint calcium carbonate is prepared from the following raw materials of broken calcium carbonate, a grinding aid, triethanolamine oleic soap, aluminum acetylacetonate, vanadium pentoxide, diethylene triamine sodium pentacarboxylate, a modifier, trimethylolpropane tris(3-aziridinylpropanoate), phthalandione bis(2-ethyl hexoate) ester, modified polyacrylate, hexenyl distearamide, 2-(2'-hydroxyl-3',5'-ditert phenyl)-5-benzotriazole chloride, polyacrylamide and a stabilizer. The paint calcium carbonate is prepared by the steps of stone cleaning, decontaminating, dewatering, breaking, grinding, surface modifying, performance adjusting, smashing, drying and the like. The paint calcium carbonate disclosed by the invention has the advantages of small agglomeration, good dispersion, high activating rate and low oil absorption value when being added into a high-molecular polymer.

Description

【Technical field】 [0001] The invention belongs to the technical field of preparation of modified calcium carbonate, and in particular relates to a preparation method of calcium carbonate for paints with high activation rate and low oil absorption value. 【Background technique】 [0002] Calcium carbonate is a commonly used inorganic filler. It is widely used in plastics, rubber, coatings, stone plates, paints and other fields due to its wide source and low price. However, the surface of calcium carbonate is hydrophilic and oleophobic, the specific surface energy is high, the particles are easily aggregated, and the compatibility with high molecular polymers is very poor. Therefore, when filling high molecular polymers, the surface of calcium carbonate must be modified to make its surface lipophilic and hydrophobic, enhance compatibility with high molecular polymers, improve dispersion in high molecular polymers, improve performance. 【Content of invention】 [0003] The tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/04C09C3/06C09C3/08C09C3/10C09D7/12
CPCC09C1/022C01P2006/19C09C3/006C09C3/04C09C3/041C09C3/06C09C3/08C09C3/10
Inventor 唐文易双
Owner 贺州钟山县双文碳酸钙新材料有限公司
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