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Polyetheramine-modified waterborne alkyd resin and preparation method thereof

A technology of water-based alkyd resin and polyether amine, which is applied in polyester coatings, coatings, anti-corrosion coatings, etc., can solve the problems of hardness, impact resistance, poor outdoor weather resistance, etc., and achieve good flexibility, good fullness, and good The effect of water resistance

Active Publication Date: 2020-02-04
UNION FOSHAN CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The performance of the above-mentioned technical inventions has been improved to a certain extent, but their hardness, impact resistance and outdoor weather resistance are poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A polyetheramine modified water-based alkyd resin, which consists of the following formula in parts by weight: 30.0 parts of soybean oil, 8.0 parts of polyetheramine, 30.0 parts of hexahydrophthalic anhydride, 15.0 parts of neopentyl glycol, trimethylol 35.0 parts of propane, 18.0 parts of xylene, 4.0 parts of n-octanoic acid, 5.0 parts of dimethylolpropionic acid, 0.7 parts of sodium bicarbonate, 9.0 parts of triethylamine, 0.2 parts of dibutyltin dilaurate, and 150.0 parts of deionized water.

[0024] A kind of preparation method of polyetheramine modified water-based alkyd resin in the present embodiment, comprises the following steps:

[0025] a) In the multifunctional reaction kettle, add soybean oil, neopentyl glycol, trimethylolpropane, hexahydrophthalic anhydride, dimethylolpropionic acid, and xylene in sequence according to the weight of the formula, and feed them under low-speed stirring N 2 , to remove the O in the reactor 2 ;

[0026] b) Heat up to 120°C,...

Embodiment 2

[0029] A polyetheramine-modified water-based alkyd resin, which consists of the following formula in parts by weight: 20.0 parts of palm oil, 6.0 parts of polyetheramine, 20.0 parts of maleic anhydride, 20.0 parts of hexahydrophthalic anhydride, diethylene diethylene glycol 25.0 parts of alcohol, 23.0 parts of pentaerythritol, 15.0 parts of xylene, 3.5 parts of n-octanoic acid, 5.2 parts of dimethylolpropionic acid, 0.6 parts of sodium bicarbonate, 6.5 parts of ammonia water, 0.2 parts of dibutyltin dilaurate, 140.0 parts of deionized water .

[0030] A kind of preparation method of polyetheramine modified water-based alkyd resin in the present embodiment, comprises the following steps:

[0031] a) In the multifunctional reaction kettle, add palm oil, diethylene glycol, pentaerythritol, maleic anhydride, hexahydrophthalic anhydride, dimethylol propionic acid and xylene in sequence according to the weight of the formula, and stir at a low speed Access to N 2 , to remove the O...

Embodiment 3

[0035] A polyetheramine-modified water-based alkyd resin, consisting of the following formula in parts by weight: 25.0 parts of castor oil, 8.0 parts of polyetheramine, 25.0 parts of hexahydrophthalic anhydride, 12.0 parts of acetic anhydride, and 45.0 parts of trimethylolpropane 15.0 parts of xylene, 5.0 parts of n-octanoic acid, 5.5 parts of dimethylolpropionic acid, 0.6 parts of sodium bicarbonate, 9.0 parts of triethylamine, 0.2 parts of dibutyltin dilaurate, and 140.0 parts of deionized water.

[0036] A kind of preparation method of polyetheramine modified water-based alkyd resin in the present embodiment, comprises the following steps:

[0037]a) In the multifunctional reaction kettle, add castor oil, trimethylolpropane, hexahydrophthalic anhydride, acetic anhydride, dimethylolpropionic acid and xylene in sequence according to the weight of the formula, and feed N with stirring at a low speed. 2 , to remove the O in the reactor 2 ;

[0038] b) Heat up to 110°C, keep i...

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Abstract

The invention relates to a polyetheramine-modified waterborne alkyd resin and a preparation method thereof. The polyetheramine-modified waterborne alkyd resin comprises, by weight, 20.0-40.0 parts ofvegetable oil, 4.0-12.0 parts of polyetheramine, 20.0-50.0 parts of organic anhydrides, 25.0-70.0 parts of polyol, 10.0-25.0 parts of xylene, 2.5-6.0 parts of n-caprylic acid, 3.5-7.0 parts of dimethylolpropionic acid, 0.5-1.0 part of sodium bicarbonate, 4.0-12.0 parts of a neutralizer, 0.1-0.5 part of dibutyltin dilaurate and 100.0-200.0 parts of deionized water. The trifunctional polyetheramineis connected with a waterborne alkyd resin structure through chemical bonds, so the performances are stable; and the polyetheramine-modified waterborne alkyd resin has the characteristics of good water resistance, corrosion resistance, impact resistance, outdoor weather resistance, high hardness, good fullness and the like, and can be used for interior / exterior wall coatings, waterborne industrialcoatings and waterborne wood coatings.

Description

technical field [0001] The invention relates to a modified water-based alkyd resin, in particular to a polyetheramine-modified water-based alkyd resin and a preparation method thereof, belonging to the technical field of water-based resin synthesis. Background technique [0002] Alkyd resin is an important resin for coatings. It has rich sources of monomers, low price, many varieties, large formula changes, convenient chemical modification and good performance. Alkyd coatings also have good workability and high film fullness. , good flexibility and other characteristics, widely used in decoration and protection of steel structures. Its easy construction and cross-linking properties with oxygen make it self-drying and versatile and widely used. Therefore, since the development of alkyd resin, alkyd resin has always occupied an important position in the coating industry, but alkyd coatings have slow drying of the coating film, low hardness, poor water resistance, poor corrosi...

Claims

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Application Information

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IPC IPC(8): C08G63/685C08G63/85C09D167/08C09D5/08
CPCC08G63/685C08G63/85C09D167/08C09D5/08
Inventor 张武康伦国姚东生
Owner UNION FOSHAN CHEM
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