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Process for preparing alkyd resin coating

A technology of alkyd resin and preparation process, which is applied in the field of preparation technology of ionic liquid application, can solve the problems of mixing and inputting together, affecting the drying performance of paint film, performance failure, etc., achieving less environmental pollution, and facilitating the control and production of process conditions Manage and simplify the effect of operating procedures

Inactive Publication Date: 2007-03-28
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its dosage also needs to be strictly controlled, as excessive dosage will affect the drying performance of the paint film
In addition, when adding the anti-skinning agent, it cannot be mixed with the drier, otherwise it will make its performance invalid

Method used

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  • Process for preparing alkyd resin coating
  • Process for preparing alkyd resin coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 uses 1-butyl-3-methylimidazolium acetate ionic liquid

[0025] Add 34.3 parts of soybean oil, 26.3 parts of glycerin, and 2 parts of ionic liquid into the reactor, raise the temperature to 100°C, stir for 3 hours, add 39.4 parts of phthalic anhydride, 3 parts of toluene, heat up and reflux until the reaction temperature reaches 220°C, react for 3 hours, and take a sample After measuring the acid value ≤ 20mg KOH / g, lower the temperature, dilute with xylene according to the requirements of the resin coating, and discharge the material with a viscosity ≤ 18s.

Embodiment 2

[0026] Embodiment 2 uses ethylpyridine acetate ionic liquid

[0027] Add 34.3 parts of soybean oil, 26.3 parts of glycerin, and 1 part of ionic liquid into the reactor, raise the temperature to 80°C, stir for 3 hours, add 39.4 parts of phthalic anhydride, 5 parts of xylene, heat up and reflux until the reaction temperature reaches 220°C, and react for 3 hours. After taking a sample to determine the acid value ≤ 20mg KOH / g, cool down, dilute with xylene according to the requirements of the resin coating, and discharge the material with a viscosity ≤ 18s.

Embodiment 3

[0028] Embodiment 3 uses ethylpyridine hexafluorophosphate ionic liquid

[0029] Add 34.3 parts of linseed oil, 26.3 parts of glycerin, and 5 parts of ionic liquid into the reactor, raise the temperature to 100°C, stir for 3 hours, add 39.4 parts of phthalic anhydride, 6 parts of toluene, heat up and reflux until the reaction temperature reaches 220°C, and react for 3 hours. After taking a sample to determine the acid value ≤ 20mg KOH / g, cool down, dilute with xylene according to the requirements of the resin coating, and discharge the material with a viscosity ≤ 18s.

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PUM

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Abstract

The invention relates to alkyd resin coating preparing technology. It includes the following steps: according to mass shares fatty acid 30-40, glycerol 20-30, ion liquid 1-10 are stirring at 50-100 degree centigrade for 1-5h; adding into benzene anhydride 35-45, toluene or methyl benzene 3-6 to do back flow reaction at 220-240 degree centigrade for 3-5h; cooling, diluting, filtering to gain the alkyd resin coating. The invention is a green clear technological line which can increase esterifying reaction, reduce oxygen absorbed for coating oxidation drying, simplify operational program, reduce cost, fit for industrialization production in certain scale etc.

Description

(1) Technical field [0001] The invention relates to a preparation process of an alkyd resin coating, in particular to a preparation process for using an ionic liquid. (2) Background technology [0002] Alkyd resin coatings are prepared from polybasic acids and polyols polymerized resins. Alkyd resin coatings have excellent quality, unique performance, many varieties, large output, and wide application range. They are favored by the majority of users, and their market share is also increasing year by year. So far, its output has accounted for half of the entire paint industry, and its development prospects are broad. At present, it is mainly produced by chemical synthesis. [0003] Ionic liquid is a liquid compound composed entirely of ions. It is a salt that is liquid at a low temperature of less than 100 ° C. It is also called a low-temperature molten salt. It is generally composed of organic cations and inorganic anions. The more researched ionic liquids are usually com...

Claims

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Application Information

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IPC IPC(8): C09D167/08
Inventor 孙莉裴文
Owner ZHEJIANG UNIV OF TECH
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