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High-performance black color paste and preparation method thereof

A high-performance, black technology, applied in the field of black pigments, can solve the problems of complex preparation and synthesis, many steps, easy agglomeration of pigment particles, etc., and achieve the effects of simple preparation steps, simple components, and easy preparation.

Active Publication Date: 2021-11-02
CAICAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, perylene black pigments are currently one of the most popular infrared reflective pigments, but their preparation and synthesis are complex, with many steps, and the pigment particles are easy to agglomerate, so it needs to be dispersed or milled to obtain high dispersion rate and small particles. Therefore, it is necessary to propose a new method of preparing black pigments to better solve the above technical problems

Method used

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  • High-performance black color paste and preparation method thereof
  • High-performance black color paste and preparation method thereof
  • High-performance black color paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Get the compound 1 of 1 molar equivalent, the compound b of 2 molar equivalents, the diethanolamine of 0.5 molar equivalents, and the alkyl polyethylene oxide of 50% weight with compound 1, b and diethanolamine gross weight, in kneader Stir at 110°C for 1 hour under a nitrogen atmosphere, then raise the temperature to 240°C, and continue the reaction. During this period, use infrared spectroscopy to monitor the completion of the reaction until 1770cm in the infrared spectrum -1 After the acid anhydride characteristic peak at the position disappears, stop heating, and after cooling to room temperature, add 0.5 molar equivalent of alkyl diacid, then raise the temperature to 150°C, and continue the reaction for 1 hour to obtain a black paste product, the main components of which are as follows:

[0030]

Embodiment 2

[0032] Get 1 molar equivalent of compound 1, 2 molar equivalents of compound c, and the copolymer of styrene and acrylic acid of 95% by weight of the mixture of compound 1 and c, stir in a kneader at 110 ° C for 1 hour under a nitrogen atmosphere , then slowly increase the temperature to 180°C within 3 hours, continue the reaction, and monitor the completion of the reaction with infrared spectroscopy, such as 1770cm in the infrared spectrum -1 The acid anhydride characteristic peak of position does not disappear, then continue to react, finally obtain black pasty product, its main component is as follows:

[0033]

Embodiment 3

[0035] Get 1 molar equivalent of compound 1, 2 molar equivalents of compound d, and the copolymer of acrylonitrile and acrylic acid of 80% by weight of the mixture weight of compound 1 and d, stir in a kneader at 110 ° C for 1 hour under a nitrogen atmosphere , then slowly increase the temperature to 180°C within 3 hours, continue the reaction, and monitor the completion of the reaction with infrared spectroscopy, such as 1770cm in the infrared spectrum -1 The acid anhydride characteristic peak of position does not disappear, then continue to react, finally obtain black pasty product, its main component is as follows:

[0036]

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Abstract

The invention relates to the technical field of black pigments, in particular to high-performance black color paste and a preparation method thereof. The high-performance black color paste comprises a compound containing an anhydride group, a compound containing an amino group and a low-melting-point amphiphilic solid, wherein the compound containing the anhydride group and the compound containing the amino group are equal in molar weight, and the addition amount of the low-melting-point amphiphilic solid is 10%-1000% of the sum of the mass of the anhydride group-containing compound and the mass of the amido-containing compound. The black color paste is simple in component, solvent-free, green, environment-friendly, free of dispersion in the preparation process and easy to prepare. The black color paste does not need to be ground, can be highly dispersed in the low-melting-point amphiphilic solid, can effectively improve the machinability and repeatability, and reduces the chromatic aberration. According to the preparation method disclosed by the invention, the components react in a kneading machine to change color, the black color paste is finally obtained, the preparation steps are simple, the operation is simple and convenient, the preparation is easy, and the application prospect is good.

Description

technical field [0001] The invention relates to the technical field of black pigments, in particular to a high-performance black color paste and a preparation method thereof. Background technique [0002] In the pigment market, black and white are the two most important colors, among which black is dominated by carbon black, including pigment black 6 and pigment black 7, but carbon black not only absorbs visible light, but also absorbs a large amount of infrared light. The total solar reflectance (TSR) is usually only about 5%. Therefore, when carbon black is exposed to sunlight, the absorbed sunlight will be quickly converted into heat. Due to the strong absorption of infrared light by carbon black, infrared light cannot reflect or penetrate Carbon black on the surface of objects, which may cause the infrared sensor used for distance measurement or plastic classification to fail or greatly reduce the accuracy rate. Therefore, organic black pigments and dyes other than carbo...

Claims

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Application Information

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IPC IPC(8): C09B57/12C09B57/00
CPCC09B57/12C09B57/00
Inventor 李辰魏文山段若蒙赵雁飞王佳星田禾
Owner CAICAI TECH CO LTD
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