Self-dry type waterborne alkyd resin and preparation method thereof

A water-based alkyd resin, self-drying technology, used in coatings, polyester coatings, etc., can solve the problems of poor heat resistance, slow drying speed, etc., and achieve good stability, good impact resistance, and quick-drying paint film. good effect

Active Publication Date: 2018-09-21
泰兴盛嘉树脂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the performance of water-based alkyd resin has been comparable to that of solvent-based alkyd resin in terms of hardness and adhesion. less heat and dries slower

Method used

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  • Self-dry type waterborne alkyd resin and preparation method thereof
  • Self-dry type waterborne alkyd resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The raw materials of this embodiment are: coconut oleic acid: 20wt%, neopentyl glycol: 12wt%, trimethylolpropane: 13wt%, isophthalic acid: 8wt%, diethylene glycol isophthalate-5 - Sodium sulfonate: 5 wt%, glycidyl methacrylate: 3.0 wt%, organofunctional silica: 3.0 wt%, triethylamine: 5.0 wt%, ethylene glycol monobutyl ether: the balance.

[0027] Add coconut oleic acid, neopentyl glycol and trimethylolpropane to a four-necked flask equipped with a thermometer, a stirrer, a condenser and a thermocouple, raise the temperature to 150°C and start stirring, and slowly raise the temperature (below 5°C / min) Heat the reaction at 220°C, stop heating when the acid value is less than 10mgKOH / g; add isophthalic acid, diethylene glycol isophthalate-5-sulfonate, methacrylic acid when the temperature drops to 150°C Glycidyl esters and organofunctional silica, N-passed 2 , Stir and gradually heat up to 200°C and keep warm for reaction. When the acid value is 45-60mgKOH / g, stop heatin...

Embodiment 2

[0029] The raw materials of this embodiment are: linoleic acid: 18wt%, ethylene glycol: 4wt%, neopentyl glycol: 10wt%, trimethylolpropane: 12wt%, isophthalic acid: 8wt%, isophthalic acid Sodium diethylene glycol ester-5-sulfonate: 5 wt%, glycidyl methacrylate: 3.0 wt%, organofunctional silica: 3.0 wt%, triethylamine: 4.0 wt%, ethyl acetate: 8 wt% %, ethylene glycol monobutyl ether: balance.

[0030] In a four-neck flask equipped with a thermometer, stirrer, condenser and thermocouple, add linoleic acid, ethylene glycol, neopentyl glycol and trimethylolpropane, raise the temperature to 150°C and start stirring, slowly heat up (5°C / min) to 220°C for heat preservation reaction, when the acid value is less than 10mgKOH / g, stop heating; when the temperature drops to 150°C, add isophthalic acid, diethylene glycol isophthalate-5-sodium sulfonate , glycidyl methacrylate and organofunctionalized silica, N 2 , stir and gradually heat up to 200°C and keep warm for reaction. When the a...

Embodiment 3

[0032]The raw materials of this embodiment include: soybean oil fatty acid: 25wt%, diethylene glycol: 8wt%, neopentyl glycol: 8wt%, trimethylolpropane: 12wt%, 2,6-naphthalene dicarboxylic acid: 6wt%, Diethylene glycol isophthalate-5-sodium sulfonate: 3 wt%, Glycidyl methacrylate: 5.0 wt%, Organofunctional silica: 5.0 wt%, Triethylamine: 3.5 wt%, Acetic acid Isobutyl ester: 10 wt%, diethylene glycol monobutyl ether: balance.

[0033] In a four-neck flask equipped with a thermometer, a stirrer, a condenser and a thermocouple, add soybean oil fatty acid, diethylene glycol, neopentyl glycol and trimethylolpropane, raise the temperature to 150°C and start stirring, and slowly heat up (5 ℃ / min) to 220℃ for heat preservation reaction, when the acid value is less than 10mgKOH / g, stop heating; when the temperature drops to 150℃, add 2,6-naphthalene dicarboxylic acid, diethylene glycol isophthalate-5 -Sodium sulfonate, glycidyl methacrylate and organofunctional silica, N-passed 2 , st...

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Abstract

The invention relates to self-dry type waterborne alkyd resin and a preparation method thereof, and relates to the technical field of waterborne coatings. The self-dry type waterborne alkyd resin is prepared from the following raw materials in parts by weight: 12 to 30 percent of vegetable fatty acid, 3 to 10 percent of polybasic carboxylic acid or acid anhydride, 2.0 to 10.0 weight percent of diethylene glycol phthalate-5-sulfonate, 9 to 21 weight percent of dihydric alcohol, 5 to 15 weight percent of trimethylolpropane, 1.5 to 5.0 weight percent of an epoxy group functional monomer, 1.0 to 10.0 weight percent of organic functional silicon dioxide, 2.0 to 8.0 weight percent of triethylamine and the balance of a solvent. The self-dry type waterborne alkyd resin disclosed by the invention has the advantages of clear appearance, high solid content and high stability; aqueous alkyd amino acid paint prepared by mixing the self-dry type waterborne alkyd resin with amino resin is high in film rapid moisture-releasility, high in water resistance, acid resistance and impact resistance and excellent in comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of water-based coatings, more specifically, the invention relates to a self-drying water-based alkyd resin and a preparation method thereof. Background technique [0002] Since the advent of alkyd resin, it has a history of more than 90 years. Its appearance broke the traditional production process of drying oil and natural resin, and made the production of coatings embark on the industrialization road of modern synthesis. Alkyd resin is a linear polyester formed by the polycondensation of polyols and polyacids through fatty acid modification. The molecular structure is based on polyol esters as the main chain and fatty acid esters as side chains. Vegetable oil is the basic raw material of alkyd resin. Since vegetable oil is a renewable resource, it can reduce the dependence on petroleum products, and the overall performance of alkyd resin is better, and various properties can be endowed by modification, mak...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/08C09D7/62C08G63/49C08G63/688C08K9/06C08K9/04C08K3/36
CPCC08G63/48C08G63/6884C08K3/36C08K9/04C08K9/06C09D7/62C09D167/08
Inventor 张丹军王玉琴杨剑挺梁成良
Owner 泰兴盛嘉树脂有限公司
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