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A kind of imine compound and its preparation method and its application and one-component polyurethane waterproof coating

An imine compound, one-component technology, applied in the field of material chemistry, can solve the problems of slow curing of one-component polyurethane, unsuitable for long-term storage, and easy to generate bubbles. quick drying effect

Active Publication Date: 2020-09-22
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the embodiment of the present invention provides an imine compound, its preparation method and its application, and a one-component polyurethane waterproof coating. In polyurethane waterproof coatings, it can solve the problems of slow curing of one-component polyurethane in low temperature construction, easy generation of bubbles in high temperature drying and poor performance stability of the coating, which is not suitable for long-term storage

Method used

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  • A kind of imine compound and its preparation method and its application and one-component polyurethane waterproof coating
  • A kind of imine compound and its preparation method and its application and one-component polyurethane waterproof coating
  • A kind of imine compound and its preparation method and its application and one-component polyurethane waterproof coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Prepare raw materials: m-1-(3-methyl-5-toluene)benzaldehyde and N-aminoethylpiperazine, the above-mentioned m-1-(3-methyl-5-toluene)benzaldehyde and the above-mentioned N-aminoethyl The molar ratio of piperazine is 1:1, and cyclohexane is the reaction solvent;

[0051] Add above-mentioned 1-(3-methyl-5-toluene) benzaldehyde in single-necked bottle, then add above-mentioned cyclohexane in the single-necked bottle filled with above-mentioned 1-(3-methyl-5-toluene) benzaldehyde, The addition quality of above-mentioned cyclohexane is 50% of 1-(3-methyl-5-toluene) benzaldehyde quality, obtains the first product, then in the one-necked bottle that fills the first product dropwise adds N- Aminoethylpiperazine, react for 30 minutes after the dropwise addition to obtain the second product, raise the temperature of the above second reactant to 60°C and react for 4 hours to obtain the third product, raise the temperature of the above third product to 90°C and azeotrope for 3 hours...

Embodiment 2

[0056] Prepare raw materials: m-ethylbenzaldehyde and m-phenylenediamine, the molar ratio of the above-mentioned ethylbenzaldehyde and the above-mentioned m-phenylenediamine is 2:1, and absolute ethanol is used as the reaction solvent;

[0057] Add the above-mentioned m-ethylbenzaldehyde in the single-mouth bottle, then add the above-mentioned absolute ethanol to the one-mouth bottle filled with the above-mentioned m-ethylbenzaldehyde, and the added quality of the above-mentioned absolute ethanol is 50% of the above-mentioned m-ethylbenzaldehyde quality , to obtain the first product, then add m-phenylenediamine dropwise to the one-necked bottle containing the first product at room temperature, react for 40 minutes after the dropwise addition to obtain the second product, raise the temperature of the above second reactant to 50°C and react The third product was obtained in 3 hours, the temperature of the above third product was lowered to normal temperature, and then the tempera...

Embodiment 3

[0062] Prepare raw materials: m-phenoxybenzaldehyde and N-aminoethylpiperazine, the molar ratio of the above-mentioned m-phenoxybenzaldehyde and the above-mentioned N-aminoethylpiperazine is 1:1, and cyclohexane is used as the reaction solvent ;

[0063] Add the above-mentioned m-phenoxybenzaldehyde in the single-port bottle, then add the above-mentioned cyclohexane in the one-port bottle filled with the above-mentioned m-phenoxybenzaldehyde, and the added quality of the cyclohexane is 1 / 4 of the above-mentioned m-phenoxybenzaldehyde quality. 50%, to obtain the first product, then add N-aminoethylpiperazine dropwise to the one-necked bottle containing the first product at normal temperature, and react for 40 minutes to obtain the second product after the dropwise addition, and raise the temperature of the above-mentioned second reactant After reaching 50°C, react for 4 hours to obtain the third product, raise the temperature of the above third product to 90°C, and azeotrope fo...

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Abstract

The invention discloses a novel imine compound as well as a preparation method and application thereof, and a waterproof single-component polyurethane coating, and relates to the field of material chemistry. The novel imine compound is used as a curing agent used in the waterproof single-component polyurethane material to prolong the storage period of coating, and solves problems in prior art that a coating film is low in temperature and slow in drying, and bubbles exist in the coating film. The chemical structure of the novel imine compound disclosed by the invention comprises at least one structure A or at least one structure B; A is shown in the description; and B is shown in the description. The novel imine compound disclosed by the invention is used as the curing agent used in the waterproof single-component polyurethane material to prolong the storage period of the coating; and when the novel imine compound is used, the coating film can be dried fast under a low temperature construction environment, and no bubbles exist in the coating film.

Description

technical field [0001] The invention relates to the field of material chemistry, in particular to an imine compound, its preparation method and application, and a one-component polyurethane waterproof coating. Background technique [0002] One-component polyurethane waterproof coating is a chemically reactive polymer waterproof coating. It is an amorphous liquid before construction and curing. It can be cured into a film by reacting with moisture in the air to form a continuous, flexible, non-contact layer. Seamed integral rubber waterproof membrane. The waterproof membrane has the advantages of excellent mechanical properties, outstanding wear resistance, good chemical corrosion resistance, and good overall waterproof effect. It is widely used in the moisture-proof, Waterproof, anti-seepage, etc. Traditional moisture-curing one-component polyurethane waterproof coatings are greatly affected by the external environment, such as humidity and temperature. In winter construct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D295/13C07C251/24C07C251/08C07C249/02C09D175/08C09D175/02C09D7/63
CPCC07C251/08C07C251/24C07D295/13C09D175/02C09D175/08
Inventor 韩海军李红英王新锋段鹏飞孙建焦明明
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD