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Melamine derivative-modified waterborne polyester flame retardant resin and preparation method thereof

A melamine, water-based polyester technology, applied in polyester coatings, coatings, fire-retardant coatings, etc., can solve the problems of easy falling off of flame retardants, harmful to human body, environmental pollution, etc., to achieve no environmental pollution, good flame retardant performance, good flexibility

Inactive Publication Date: 2019-12-20
UNION FOSHAN CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the above-mentioned technical problems, the present invention overcomes the shortcomings of the physical external flame retardant, which is easy to fall off and settle, and adopts a copolymerization method to introduce melamine into the water-based polyester resin. The melamine mainly contains N, O, and H elements. Contains halogen, phosphorus, etc., effectively solving the problem of elements harmful to human body and causing environmental pollution in the main copolymerized flame retardant resins

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Hydroxycitronellal modified melamine derivative A, its preparation process is as follows:

[0029] In a three-port reaction kettle equipped with a thermometer, a stirrer, and a condenser, add 6.0 parts of melamine and 20.0 parts of absolute ethanol according to the weight of the formula, raise the temperature to 75-78 ° C and stir evenly, and weigh 22.0 parts of hydroxycitronellal solution according to the formula. Slowly add 51.8 parts of absolute ethanol to the above reaction kettle dropwise, stir for 1.5-2.0 hours, add 0.2 parts of glacial acetic acid as a catalyst, raise the temperature to 80-82°C, stir and reflux for 3.0-4.0 hours, wait until the reaction is complete , cooling, suction filtration, recrystallization, and vacuum drying to obtain the hydroxycitronellal-modified melamine derivative A.

Embodiment 2

[0031] Hydroxycitronellal modified melamine derivative B, its preparation process is as follows:

[0032] In a three-port reaction kettle equipped with a thermometer, a stirrer, and a condenser, add 7.8 parts of melamine and 25.0 parts of absolute ethanol according to the weight of the formula, raise the temperature to 75-78 ° C and stir evenly, and weigh 28.0 parts of hydroxycitronellal solution according to the formula. Slowly add 39.0 parts of absolute ethanol to the above reaction kettle dropwise, stir for 1.5-2.0 hours, add 0.2 parts of glacial acetic acid as a catalyst, raise the temperature to 80-82°C, stir and reflux for 3.0-4.0 hours, wait until the reaction is complete , cooling, suction filtration, recrystallization, and vacuum drying to obtain the hydroxycitronellal-modified melamine derivative B.

Embodiment 3

[0034] Hydroxycitronellal modified melamine derivative C, its preparation process is as follows:

[0035]In a three-port reaction kettle equipped with a thermometer, a stirrer, and a condenser, add 8.0 parts of melamine and 25.0 parts of absolute ethanol according to the weight of the formula, raise the temperature to 75-78 ° C and stir evenly, and weigh 29.0 parts of hydroxycitronellal solution according to the formula. Slowly add 37.7 parts of absolute ethanol to the above reaction kettle dropwise, stir for 1.5-2.0 hours, add 0.3 parts of glacial acetic acid as a catalyst, heat up to 80-82°C, stir and reflux for 3.0-4.0 hours, and wait until the reaction is complete , cooling, suction filtration, recrystallization, and vacuum drying to obtain the hydroxycitronellal-modified melamine derivative C.

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PUM

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Abstract

The invention relates to melamine derivative-modified waterborne polyester flame retardant resin and a preparation method thereof. The melamine derivative-modified waterborne polyester flame retardantresin comprises the components: in parts by weight, 8.0-20.0 parts of organic acid anhydride, 5.0-10.0 parts of a hydroxycitronellal-modified melamine derivative, 2.0-5.0 parts of glycerol monolaurate, 2.0-5.0 parts of oligomer diol, 4.0-15.0 parts of polyols, 1.5-3.5 parts of 2,2-bipyridyl-5-carboxylic acid, 2.0-4.0 parts of dimethylolpropionic acid, 5.0-10.0 parts of national-standard xylene, 3.0-6.0 parts of a neutralizing agent, 0.2-0.5 part of an antioxidant and 45.0-60.0 parts of deionized water, wherein the hydroxycitronellal-modified melamine derivative is obtained through a reactionbetween melamine and hydroxycitronellal. The melamine derivative-modified waterborne polyester flame retardant resin has good adhesion, high hardness, good fullness, good flexibility, no environmentalpollution, good flame retardancy, low cost, simple construction and other features, and can be applied to coatings of inner walls and outer walls, wood coatings and other fireproof flame retardant coatings.

Description

technical field [0001] The invention relates to a preparation method of a modified polyester resin, in particular to a melamine derivative modified waterborne polyester flame retardant resin and a preparation method thereof, belonging to the technical field of synthetic functional resins. Background technique [0002] With the continuous development of the degree of industrialization, the application fields of composite materials are becoming wider and wider, the working conditions and media are becoming more and more complex, the operating temperature is getting higher and higher, and the market has higher and higher requirements for its performance. At present, the materials of high-performance resin composite materials used in domestic and foreign fields are relatively single, mainly unsaturated polyester, vinyl ester resin, and tough epoxy resin materials, but these materials have deficiencies to varying degrees. Traditional composite materials It is far from being able ...

Claims

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Application Information

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IPC IPC(8): C08G63/685C09D167/02C09D167/06C09D5/18
CPCC08G63/6856C08G63/6858C09D5/18C09D167/02C09D167/06
Inventor 张武康伦国姚东生
Owner UNION FOSHAN CHEM
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