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Light alkyd resin for interior decoration and furniture coating and preparation method thereof

An alkyd resin and interior decoration technology, used in coatings, polyurea/polyurethane coatings, etc., can solve the problems of poor gloss and color retention, large solvent usage, poor adhesion, etc., to achieve good weather resistance, paint Good film fullness, good fullness effect

Inactive Publication Date: 2010-06-09
四川巴德士新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the specific construction conditions and environmental requirements, the prepared interior decoration and furniture coating needs to be diluted with a large amount of solvent if the viscosity is too high, the gloss is low, the adhesion is not good, the paint film is easy to yellow, low hardness, and is not resistant Grinding, poor gloss and color retention, and a large amount of solvent are used, resulting in the above reasons. The performance of alkyd resin plays a key role. Therefore, the preparation of high-solid, low-viscosity and high-performance alkyd resin is the key technology to solve many defects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This example is used for interior decoration and furniture coating bright alkyd resin, which includes the following raw materials:

[0041] 1. Glycerin 16g

[0042] 2. Palmitoleic acid 15g

[0043] 3. Benzoic acid 0.5g

[0044] 4. Adipic acid 0.5g

[0045] 5. Neopentyl glycol 7.4g

[0046] 6. Phthalic anhydride 45.6g

[0047] 7. Pentaerythritol 3g

[0048] 8. Xylene 12g

[0049] Put the raw materials in the above 1-7 and 0.42g of xylene into the reactor at one time, and start stirring when it is heated to 50°C; pass carbon dioxide gas in the reactor to protect the temperature, and raise the temperature to 130°C at a heating rate of 8°C / hour, and keep warm for 1 At this time, there is xylene reflux, continue to rise to 200±5°C at a rate of 8°C / hour, and keep warm for 4 hours; take samples in the reaction kettle and use a 25°C Grignard tube to measure the viscosity. When the viscosity is 160s / 25°C , rapidly cooled to 130° C. to obtain a modified alkyd resin; transf...

Embodiment 2

[0051] This example is used for interior decoration and furniture coating bright alkyd resin, which includes the following raw materials:

[0052] 1. Glycerin 28g

[0053] 2. Palmitoleic acid 17.4g

[0054] 3. Benzoic acid 3.6g

[0055] 4. Adipic acid 3.2g

[0056] 5. Neopentyl glycol 10g

[0057] 6. Phthalic anhydride 25g

[0058] 7. Pentaerythritol 6.8g

[0059] 8. Xylene 6g

[0060] Put the raw materials in the above 1-7 and 0.21g of xylene into the reactor at one time, and start stirring when it is heated to 100°C; pass carbon dioxide gas to protect the temperature in the reactor, and raise the temperature to 180°C at a heating rate of 12°C / hour, and keep warm for 3 Hours, at this time there is xylene reflux, continue to rise to 200±5°C at a rate of 12°C / hour, and keep warm for 8 hours; take samples in the reaction kettle and use a 25°C Grignard tube to measure the viscosity. When the viscosity is 160s / 25°C , rapidly cooled to 180° C. to obtain a modified alkyd resi...

Embodiment 3

[0062] This example is used for interior decoration and furniture coating bright alkyd resin, which includes the following raw materials:

[0063] 1. Glycerin 17g

[0064]2. Palmitoleic acid 25.8g

[0065] 3. Benzoic acid 0.6g

[0066] 4. Adipic acid 0.8g

[0067] 5. Neopentyl glycol 6g

[0068] 6. Phthalic anhydride 39.3g

[0069] 7. Pentaerythritol 3.5g

[0070] 8. Xylene 7g

[0071] Put the raw materials in the above 1-7 and 0.245g of xylene into the reactor at one time, and start stirring when it is heated to 80°C; pass carbon dioxide gas in the reactor to protect the temperature, and raise the temperature to 150°C at a heating rate of 9°C / hour, and keep warm for 2 At this time, there is xylene reflux, continue to rise to 200±5°C at a rate of 9°C / hour, and keep warm for 5 hours; take samples from the reaction kettle and use a 25°C Grignard tube to measure the viscosity. When the viscosity is 160s / 25°C , rapidly cooled to 150° C. to obtain a modified alkyd resin; tra...

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PUM

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Abstract

The invention discloses light alkyd resin for interior decoration and furniture coating, which is formed by the following raw materials: glycerol, palmitoleic acid, benzoic acid, hexanedioic acid, neopentyl glycol, phthalic anhydride, tetramethylolmethane and dimethylbenzene; the preparation method comprises the following steps: a. the palmitoleic acid, the benzoic acid, the hexanedioic acid, the glycerin, the neopentyl glycol, the phthalic anhydride, the tetramethylolmethane and the dimethylbenzene are thrown in a reactor one time, are heated and are stirred; b. carbon dioxide gas flows in the reactor to protect temperature rise, when the temperature is raised to 130-180 DEG C and kept for 1-3 hours, at the moment, the dimethylbenzene flows back, and then the temperature is raised to 200 plus / minus 5 DEG C at the temperature raising speed with 8-12 DEG C per hour, and then the temperature is kept for 4-8 hours; c. a sample is taken out in the step b for measuring viscosity, when the viscosity reaches desired value, the temperature is cooled to 130-180 DEG C, so as to obtain the modified alkyd resin; d. the alkyd resin in the step c is transferred to another reactor, and then 2.5-8.5 percent of dimethylbenzene is added, the mixture is mixed uniformly to obtain the water-white alkyd resin liquid.

Description

technical field [0001] The invention relates to a bright alkyd resin used for interior decoration and furniture coating, and also relates to a method for preparing the bright alkyd resin. Background technique [0002] Polyurethane paint is a kind of coating with excellent performance. Widely used in furniture decoration, painting, architectural decoration, equipment anti-corrosion, etc. Polyurethane paint is usually formulated from the adduct or trimer of polyester or alkyd resin and toluene diisocyanate, plus additives. Due to the specific construction conditions and environmental requirements, the prepared interior decoration and furniture coating needs to be diluted with a large amount of solvent if the viscosity is too high, the gloss is low, the adhesion is not good, the paint film is easy to yellow, low hardness, and is not resistant Grinding, poor gloss and color retention, and a large amount of solvent are used, resulting in the above reasons. The performance of alk...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/49C08G63/78C09D175/14
Inventor 方学平方道钧
Owner 四川巴德士新材料有限公司
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