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Calcium carbonate for coatings and preparation method thereof

A technology of calcium carbonate and calcium carbonate stone, applied in the field of calcium carbonate for coatings and its preparation, can solve the problems of poor organic compatibility, easy aggregation, poor dispersion, etc., achieve low cost, expand application range, and simple preparation method Effect

Inactive Publication Date: 2017-12-01
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

[0004] The technical problem to be solved by the present invention is to provide a calcium carbonate used in coatings and its preparation method to solve the existing problems of calcium carbonate such as hydrophilic and oleophobic, poor dispersibility, easy aggregation, poor compatibility with organic matter, etc.

Method used

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  • Calcium carbonate for coatings and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0023] A kind of calcium carbonate that is used for coating, in weight part, comprises following raw material: 95 parts of calcium carbonate stone material, 3 parts of higher fatty alcohol, 2 parts of triisopropylamine, 10 parts of muscovite, sodium polystyrene sulfonate 6 parts, 0.9 parts of sodium methacrylate, 0.5 parts of N-aminoethyl-3-aminopropylmethyldimethoxysilane, 0.3 parts of trimethylbutyl peroxysilane, sodium polynaphthaldehyde sulfonate 0.6 part of salt, 0.8 part of allyl methacrylate, 0.2 part of sodium lignosulfonate, 2-(4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine 0.1 part of -2-yl)-5-methoxyphenol, 0.4 part of magnesium oxide, 0.1 part of polyisocyanate, 0.5 part of nano-titanium dioxide, and 0.3 part of epoxidized soybean oil.

[0024] A kind of calcium carbonate preparation method for coating, coating method comprises the following steps:

[0025] S1: Calcium carbonate stone is cleaned to remove impurities, then dried to remove surface moisture, after crushi...

Embodiment 2

[0037] A kind of calcium carbonate that is used for coating, in weight part, comprises following raw material: 113 parts of calcium carbonate stones, 15 parts of muscovite, 13 parts of sodium polystyrene sulfonate, 1.5 parts of sodium methacrylate, N- 1.2 parts of aminoethyl-3-aminopropylmethyldimethoxysilane, 0.8 parts of trimethylbutyl peroxysilane, 0.9 parts of polynaphthaldehyde sulfonic acid sodium salt, 1.5 parts of allyl methacrylate, 0.5 parts of sodium lignosulfonate, 0.3 parts of 2-(4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5-methoxyphenol , 0.6 parts of magnesium oxide, 0.3 parts of polyisocyanate, 1.1 parts of nano-titanium dioxide, and 0.8 parts of epoxy soybean oil.

[0038] A kind of calcium carbonate preparation method for coating, coating method comprises the following steps:

[0039] S1: Calcium carbonate stone is cleaned to remove impurities, then dried to remove surface moisture, after crushing, add higher fatty alcohol and triisopropylamine to grind...

Embodiment 3

[0051] A kind of calcium carbonate that is used for coating, in weight part, comprises following raw material: 124 parts of calcium carbonate stone material, 5 parts of higher fatty alcohol, 5 parts of triisopropylamine, 16 parts of muscovite, sodium polystyrene sulfonate 9 parts, 1.1 parts of sodium methacrylate, 0.9 parts of N-aminoethyl-3-aminopropylmethyldimethoxysilane, 0.5 parts of trimethylbutylperoxysilane, sodium polynaphthaldehyde sulfonate 0.7 parts of salt, 1.2 parts of allyl methacrylate, 0.3 parts of sodium lignosulfonate, 2-(4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine 0.2 parts of -2-yl)-5-methoxyphenol, 0.8 parts of magnesium oxide, 0.2 parts of polyisocyanate, 1.2 parts of nano-titanium dioxide, and 1.6 parts of epoxidized soybean oil.

[0052] A kind of calcium carbonate preparation method for coating, coating method comprises the following steps:

[0053] S1: Calcium carbonate stone is cleaned to remove impurities, then dried to remove surface moisture, afte...

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Abstract

The invention belongs to the technical field of preparation of calcium carbonate and particularly discloses modified calcium carbonate for coatings and a preparation method thereof. The calcium carbonate contains the following materials: calcium carbonate stone, higher fatty alcohol, triisopropylamine, white mica, sodium polystyrenesulfonate, sodium methallyl sulfonate, N-aminoethyl-3-aminopropyl methyl dimethoxysilane, trimethylbutyl peroxysilane, sodium polynaphthalene formaldehyde sulfonate salt, methacrylic acid allyl ester, sodium lignin sulfonate, 2-(4, 6-di(2, 4-dimethylphenyl)-1, 3, 5-triazine-2-radical)-5-methoxyphenol, magnesium oxide, polyisocyanate, nanometer titanium dioxide and epoxidized soybean oil. The calcium carbonate for the coatings is prepared by the steps of preparing calcium carbonate powder, mixing with other materials, drying and crushing. The prepared calcium carbonate has the characteristics of good dispersibility, low oil-absorption value, small sedimentation volume and high activation rate.

Description

【Technical field】 [0001] The invention belongs to the technical field of calcium carbonate preparation, and in particular relates to a calcium carbonate used for coatings and a preparation method thereof. 【Background technique】 [0002] Mineral pigments are now widely used in various coating systems not only to reduce the cost of the formulation but also to further improve certain properties of the coating formulation during the preparation and storage of the coating formulation or during or after the coating formulation is applied to the substrate . In the field of paint formulations, coating systems almost always feature titanium dioxide. However, titanium dioxide suffers from a relatively high cost, leading to an ongoing need to find low cost titanium dioxide partial replacement pigments that do not degrade optical and other coating composition properties. [0003] Calcium carbonate is a commonly used inorganic filler. Due to its wide source and low price, it has been u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C09C1/02C09C3/06C09C3/08C09C3/10C09C3/12
CPCC09C1/022C09C1/021C09C3/006C09C3/06C09C3/08C09C3/10C09C3/12
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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