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Application of boric acid ester coalescing agent in preparation of water-based paint

A technology of film-forming aids and borate esters, which is applied in the field of water-based paint preparation, can solve the problems of lack of good construction performance and difficult paint film, and achieves the effects of great commercial value, relatively low cost, and simple synthesis method.

Pending Publication Date: 2022-04-05
SHANGHAI GANTIAN OPTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, they do not have good construction performance, and it is difficult to obtain a good paint film. Various additives must be added to achieve the required construction performance and film-forming quality. Film-forming additives are one of the most important additives in coatings.

Method used

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  • Application of boric acid ester coalescing agent in preparation of water-based paint
  • Application of boric acid ester coalescing agent in preparation of water-based paint
  • Application of boric acid ester coalescing agent in preparation of water-based paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation method of compound I-1:

[0036]

[0037] Mix phenylboronic acid and isopropanol with a molar ratio of 1:3, add catalyst anhydrous sodium sulfate that accounts for 0.1% by weight of the total amount of reactants, and place the above-mentioned substances in a four-wheeled container equipped with mechanical stirring, a condenser tube, and a thermometer. In an open flask, in the presence of an inert gas (such as nitrogen, etc.), the reaction system was slowly heated to 150°C, and kept under mechanical stirring for 5h at 150°C. After the reaction, the reaction solution was cooled to room temperature, filtered, and The clear liquid after suction filtration was transferred to a separatory funnel, and water was added for repeated extraction until the organic phase was neutral, and the organic phase was separated, and the organic phase was evaporated to remove low boilers to obtain a colorless and transparent compound I-1.

Embodiment 2

[0039] The preparation method of compound 1-2:

[0040]

[0041] Mix phenylboronic acid and ethylene glycol monomethyl ether with a molar ratio of 1:3, add catalyst anhydrous sodium sulfate that accounts for 0.1% by weight of the total amount of reactants, place the above-mentioned substances in a place equipped with mechanical stirring and a condenser, In a four-necked flask with a thermometer, in the presence of an inert gas (such as nitrogen, etc.), the reaction system was slowly heated to 150°C, and kept under mechanical stirring at 150°C for 5h. After the reaction, the reaction solution was cooled to room temperature, pumped After filtration, the clear liquid after suction filtration was transferred to a separatory funnel, water was added and extracted repeatedly until the organic phase was neutral, the organic phase was separated, and the organic phase was evaporated to remove low boilers to obtain a colorless and transparent compound I-2.

Embodiment 3

[0043] The preparation method of compound 1-3:

[0044]

[0045] Mix phenylboronic acid and ethylene glycol monoethyl ether with a molar ratio of 1:3, add catalyst anhydrous sodium sulfate that accounts for 0.1% by mass of the total amount of reactants, place the above-mentioned substances in a In a four-necked flask, in the presence of an inert gas (such as nitrogen, etc.), the reaction system was slowly heated to 150°C, and kept under mechanical stirring for 5 hours at 150°C. After the reaction was completed, the reaction solution was cooled to room temperature, and suction filtered , the clear liquid after suction filtration was transferred to a separatory funnel, water was added and extracted repeatedly until the organic phase was neutral, the organic phase was separated, and the organic phase was evaporated to remove low boilers to obtain a yellow transparent compound I-3.

[0046] The VOC test of the compound that embodiment 1~3 prepares:

[0047] The testing procedu...

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Abstract

The invention discloses an application of a borate film-forming auxiliary agent in preparation of a water-based paint. The borate film-forming auxiliary agent has a structural general formula as shown in a formula I, wherein R is selected from C1-C8 alkyl groups, C1-C5 alkoxy groups and C1-C8 alkyl groups. According to the designed and prepared borate film-forming aid, the used raw materials are safe and environmentally friendly, and the borate film-forming aid is used as a water-based paint emulsion paint film-forming aid, so that the film-forming property of the emulsion paint can be improved, and other properties of the emulsion paint are not influenced.

Description

technical field [0001] The invention belongs to the technical field of preparation of water-based paints, and in particular relates to the application of a boric acid ester film-forming aid in the preparation of water-based paints. Background technique [0002] With the increasing awareness of environmental protection, safe, environmentally friendly, low-VOC, high-performance healthy coatings are getting more and more attention. Followed by the increasingly stringent national environmental protection regulations, it is imminent to study energy-saving, environmental protection, water-based, high-performance coatings. The paint solvent is water, and the main component is a mixture of the water dispersion of polymer particles and the water dispersion of pigment particles. It contains very low VOC and belongs to "green paint". However, they do not have good construction performance, and it is difficult to obtain a good paint film. Various additives must be added to achieve the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/63C09D5/02C07F5/02
Inventor 王利民甘家安程毅
Owner SHANGHAI GANTIAN OPTICAL MATERIALS
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