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Alkyd resin modified by low-chain active resin, preparation method and self-drying paint

A technology of active resin and alkyd resin, applied in the field of self-drying paint, can solve the problems of high content, cannot reduce organic solvent pollution, low viscosity, etc., and achieve the effects of good system stability, good fullness and simple process

Active Publication Date: 2020-05-08
湘江涂料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the performance of the resin has been improved to a certain extent, the content of organic solvents such as xylene and trimethylbenzene in the resin is relatively high, which cannot reduce the pollution of the organic solvent to the environment.
[0006] At present, although the solid content of self-drying alkyd resin can reach 60-70%, in order to reduce the pollution of paint to the environment and reduce the impact of organic solvent emissions on people's life and health, the solid content of alkyd resin needs to be further improved. To more than 90%, while low viscosity, good stability, to meet the requirements of alkyd self-drying paint

Method used

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  • Alkyd resin modified by low-chain active resin, preparation method and self-drying paint
  • Alkyd resin modified by low-chain active resin, preparation method and self-drying paint
  • Alkyd resin modified by low-chain active resin, preparation method and self-drying paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0046] A low-chain active resin-modified alkyd resin Example 1-3 Raw material components and proportioning ratio are shown in Table 1:

[0047] Table 1 A low-chain active resin modified alkyd resin Example 1-3 Raw material components and ratio table

[0048]

[0049] Note: "-" in the table means not added.

Embodiment 1

[0051] (1) Preparation method of component A: according to Table 1, put the raw materials in component A of Example 1 into the reactor by weight, and after sealing the reactor, start stirring at a speed of 100r / min, and heat up to After 180°C, heat-preserve and reflux for 1 hour, then continue to heat up to 240°C, heat-preserve and reflux for esterification for 4 hours, then start to detect the acid value, when the acid value is 12mgKOH / g, start to detect the viscosity, when the viscosity is 25s, cool down, Turn on the vacuum to extract the reflux solvent and set it aside;

[0052] (2) The preparation method of component B: according to Table 1, put the raw materials in the component B of Example 1 into the reactor by weight, and after sealing the reactor, start stirring at a speed of 100r / min, and heat up to After 160°C, keep warm and reflux for 1 hour, then continue to heat up to 190°C at a rate of 10°C / h, keep warm and reflux for esterification reaction for 4 hours, start t...

Embodiment 2

[0055] (1) Preparation method of component A: according to Table 1, put the raw materials in component A of Example 2 into the reactor by weight, and after sealing the reactor, start stirring at a speed of 100r / min, and heat up to After 180°C, keep warm and reflux for 1.5h, then continue to heat up to 235°C, keep warm and reflux for esterification reaction for 3h, start to detect the acid value, when the acid value is 10.0mgKOH / g, start to detect the viscosity, when the viscosity is 20s, Cool down, turn on the vacuum to extract the reflux solvent, and set aside;

[0056] (2) The preparation method of component B: according to Table 1, put the raw materials in the component B of Example 2 into the reactor by weight, and after sealing the reactor, start stirring at a speed of 90r / min, and heat up to After 170°C, keep warm and reflux for 1.5h, then continue to heat up to 210°C at a rate of 15°C / h, keep warm and reflux for esterification reaction for 3h, start to detect the acid v...

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Abstract

The invention relates to a low-chain active resin-modified alkyd resin, a preparation method and an air-dry paint. The alkyd resin is mainly prepared by a component A and a component B by mixing, wherein the component A is prepared by palmitelaidic acid-octadecenoic acid, polyhydric alcohol, polybasic acid and a backflow solvent; the component B is prepared by high iodine oleic acid, dihydric alcohol, trihydric alcohol, diacid and a backflow solvent. The method comprises the following steps: 1) stirring the materials of the component A, heating the materials, performing backflow, continuouslyheating the materials, performing backflow, and cooling the materials; 2) stirring the materials of the component B, heating the materials, performing backflow, continuously heating the materials, performing backflow, and cooling the materials; and 3) mixing the component A and the component B, and heating a mixture and stirring the mixture to obtain the product. The air-dry paint mainly comprisesalkyd resin and a drier and / or a photoinitiator. The alkyd resin solid content can achieve as high as more than 95%, and the volatilization of an organic solvent is effectively reduced. The index ofthe air-dry paint can achieve the requirement of the alcohol acid air-dry paint. The method has the advantages of simple process and low cost, and is suitable for industrial production.

Description

technical field [0001] The invention relates to an alkyd resin, a preparation method and a self-drying paint, in particular to an alkyd resin modified with a low-chain active resin, a preparation method and a self-drying paint. Background technique [0002] With the development of industry, the pollution of the environment is becoming more and more serious. In order to maintain the sustainability of economic development, the state has stepped up efforts to protect the environment. For paint companies, in order to achieve sustainable and stable development, it is necessary to reduce the discharge of organic solvents in paint and develop towards high-solid and water-based. [0003] CN103224615A discloses an alkyd resin composition and a preparation method thereof, in which oil and oleic acid and polyhydric alcohol and polybasic acid are mixed and esterified, and an organic D40 solvent is added for dilution at the same time, and its solid content can reach 80%. However, when ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/682C09D167/08C09D7/65
CPCC08G63/682C09D7/65C09D167/08
Inventor 王曙光张谷良陈文晖张小燕
Owner 湘江涂料科技有限公司
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