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Preparation method of odor-less fast-dry alkyd resin

An alkyd resin and deodorizing technology, applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems of long curing time, large odor residue, hard and flexible coating film, etc., and achieve good matting performance and fast deodorization Excellent speed and viscosity

Active Publication Date: 2019-04-05
ANHUI SKSHU PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a preparation method of clean taste and quick-drying alkyd resin, which solves the problem of long curing time of existing alkyd resin, large odor residue after curing, too hard and poor flexibility of the coating film And other issues

Method used

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  • Preparation method of odor-less fast-dry alkyd resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 10.73 parts of soybean oleic acid, 2.13 parts of benzoic acid, 9.15 parts of pentaerythritol, 0.10 parts of hypophosphorous acid, and 2.86 parts of refluxed xylene into the reactor in sequence, and slowly raise the temperature to 105°C, start stirring, continue to heat up to 210°C, and keep warm until Acid value ≤15mgKOH / g. Cool down to 150°C, add 10.73 parts of castor oil, 3.41 parts of glycerin, 26.32 parts of phthalic anhydride and 8.44 parts of trimethylolpropane, start stirring, continue to heat up to 170°C, keep warm for 1 hour, and slowly heat up to 200°C within 4 hours. ℃-220℃ heat preservation reaction until the acid value ≤ 12mgKOH / g, lower the temperature to below 145℃, dilute with 26.13 parts of xylene, continue to stir for 30min, filter and discharge the material, and obtain the net taste quick-drying alkyd resin 1. The measured solid content of clean-flavored quick-drying alkyd resin 1 is 70.3%, and the viscosity (25°C) measured by rotational viscomete...

Embodiment 2

[0033] Add 14.57 parts of talloleic acid, 8.66 parts of pentaerythritol, 0.11 parts of hypophosphorous acid, and 2.70 parts of refluxed xylene into the reactor in sequence, slowly raise the temperature to 120°C, start stirring, continue to heat up to 215°C, and keep warm until the acid value is ≤15mgKOH / g, lower the temperature to 150°C, add 10.16 parts of castor oil, 24.9 parts of phthalic anhydride and 12.69 parts of trimethylolpropane, start stirring, continue to heat up to 170°C, keep warm for 1h, and slowly heat up to 200°C within 4h, at 200°C Insulate and react at -220°C until the acid value is ≤12 mgKOH / g, lower the temperature to below 145°C, dilute with 26.2 parts of xylene, continue stirring for 40 minutes, filter, and discharge to obtain the clean-flavored quick-drying alkyd resin 2. The measured solid content of net taste quick-drying alkyd resin 2 is 70.1%, and the viscosity (25°C) measured by rotational viscometer NDJ-1 is 51000mPa·s.

Embodiment 3

[0035] Add 9.91 parts of soybean oleic acid, 11.57 parts of pentaerythritol, 0.13 parts of hypophosphorous acid, and 3.79 parts of refluxed xylene into the reactor in sequence, slowly raise the temperature to 110°C, start stirring, continue to heat up to 210°C, and keep warm until the acid value ≤ 15mgKOH / g, cool down to 150°C, add 5.51 parts of castor oil, 12.61 parts of phthalic anhydride, 14.13 parts of isophthalic acid, 13.76 parts of neopentyl glycol, 0.4 parts of maleic anhydride and 3.96 parts of adipic acid, start stirring, and continue to heat up to 170°C, Heat preservation reaction for 1 hour, slowly heat up to 200°C within 4 hours, heat preservation reaction at 200°C-220°C until acid value ≤ 10mgKOH / g, cool down to below 145°C, dilute with 24.22 parts of xylene, continue to stir for 45 minutes, filter, and release material, to obtain net flavor quick-drying alkyd resin 3. The measured solid content of net taste quick-drying alkyd resin 3 is 70.2%, and the viscosity...

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Abstract

The invention relates to the field of alkyd resin, in particular to a preparation method of odor-less fast-dry alkyd resin. The odor-less fast-dry alkyd resin comprises, by weight, 9-15 parts of fattyacid, 5-12 parts of castor oil, 20-28 parts of polyhydric alcohols, 24-33 parts of organic acid, 2-5 parts of reflux solvents, 0.05-0.2 part of antioxidant additives and 23-27 parts of diluting solvents. The preparation methods includes: by a step-by-step feeding method, subjecting fatty acid, a part of organic acid and a part of polyhydric alcohols to esterification reaction, and adding in castor oil, the rest organic acid and the rest polyhydric alcohols to perform esterification reaction, so as to obtain the odor-less fast-dry alkyd resin. The alkyd resin has the advantages of fast drying,high solvent release property, less odor, high hardness, scratch resistance and the like, further has excellent flexibility without adding of other flexible resin and accordingly can improve production efficiency and have high competitiveness in application of modern furniture factories.

Description

technical field [0001] The invention relates to the field of alkyd resins, in particular to a method for preparing odor-cleaning and quick-drying alkyd resins. Background technique [0002] As people's awareness of environmental protection is getting stronger and the country's environmental protection policies are becoming more and more stringent, environmentally friendly wood lacquers represented by water-based wood lacquers and UV wood lacquers are getting more and more attention from the market and the industry. However, there are problems such as high requirements on equipment, materials, and cost, and the technology is not yet fully mature, product performance is uneven, and the market penetration is not high, so it cannot replace traditional solvent-based wood lacquers in large quantities. [0003] The two-component polyurethane paint (hereinafter referred to as PU paint) in the traditional oily wood paint has become the largest type of wood paint in China due to its e...

Claims

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Application Information

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IPC IPC(8): C08G63/49C08G63/78C09D175/14
CPCC08G63/48C08G63/78C09D175/14
Inventor 洪杰郭明德赵子千张海峰柯希贤陈雪敏
Owner ANHUI SKSHU PAINT CO LTD
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