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A kind of water-based tall oil alkyd resin emulsion and preparation method thereof

A technology of alkyd resin emulsion and alkyd resin, which can be applied in coatings, polyester coatings, etc., can solve the problems of large use of organic solvents, serious environmental pollution, and large oil consumption, and achieve large formula changes and excellent comprehensive performance , the effect of many varieties

Active Publication Date: 2018-10-19
FOSHAN GUOHUA CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional solvent-based coatings use a lot of organic solvents, causing serious environmental pollution, and consume a large amount of petroleum, high cost, and the emitted gas is harmful to the human body; in the past ten years, with the performance of water-based coatings gradually catching up with solvent-based coatings Coatings, its application in the field of coatings is expanding day by day, gradually replacing many conventional solvent-based coatings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of preparation method of aqueous tall oil alkyd resin emulsion, comprises the steps:

[0026] Step 1: preparing tall oil diethanolamine;

[0027] Weigh tall oil in a reaction bottle, under the protection of inert gas, heat to 160°C, then add diethanolamine to react with tall oil according to the molar ratio of diethanolamine to tall oil 1:1, and the product is decompressed The water generated in the reaction is removed by distillation to obtain tall oil diethanolamine;

[0028] Step 2: preparing polyester intermediate;

[0029] Add tall oil diethanolamine, ethylene glycol, deionized water and dibutyltin dilaurate obtained in isophthalic acid-5-sodium sulfonate, step 1 into the reaction vessel, and feed nitrogen into the reaction vessel for heating, The reaction temperature is 200°C, and the reaction time is 6.5 hours to obtain a polyester intermediate;

[0030] The dicarboxylic acid mol ratio of diol in tall oil diethanolamide and ethylene glycol and isophthal...

Embodiment 2

[0034] A kind of preparation method of aqueous tall oil alkyd resin emulsion, comprises the steps:

[0035] Step 1: preparing tall oil diethanolamine;

[0036] Weigh tall oil in a reaction bottle, under inert gas protection, heat to 150°C, then add diethanolamine to react with tall oil according to the ratio of diethanolamine to tall oil molar ratio of 1:1.5, and the product is decompressed The water generated in the reaction is removed by distillation to obtain tall oil diethanolamine;

[0037] Step 2: preparing polyester intermediate;

[0038] Add 5-sodium isophthalate, tall oil diethanolamine obtained in step 1, a certain amount of pentylene glycol, deionized water and dibutyltin dilaurate into the reaction vessel, and nitrogen gas Heating reaction, the reaction temperature is 170 ° C, the reaction time is 7 hours, and the polyester intermediate is obtained;

[0039] The dibasic carboxylic acid mol ratio of diol in tall oil diethanolamide and pentanediol and isophthalic ...

Embodiment 3

[0043] A kind of preparation method of aqueous tall oil alkyd resin emulsion, comprises the steps:

[0044] Step 1: preparing tall oil diethanolamine;

[0045] Weigh tall oil in a reaction bottle, under inert gas protection, heat to 140°C, then add diethanolamine to react with tall oil according to the ratio of diethanolamine to tall oil molar ratio of 1:1.25, and the product is decompressed The water generated in the reaction is removed by distillation to obtain tall oil diethanolamine;

[0046] Step 2: preparing polyester intermediate;

[0047] Add sodium terephthalate sulfonate, tall oil diethanolamine obtained in step 1, ethylene glycol, deionized water and dibutyl tin dilaurate into the reaction vessel, feed nitrogen to heat the reaction, and the reaction temperature is 180 ℃, the reaction time is 5 hours, and the polyester intermediate is obtained;

[0048] The molar ratio of the glycol in tall oil diethanolamide and ethylene glycol to the dibasic carboxylic acid of s...

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Abstract

The invention provides waterborne tall oil alkyd resin emulsion and a preparation method thereof. Waterborne alkyd resin is prepared by taking tall oil extracted from papermaking waste liquid as a raw material; a preparation process comprises: (1) taking the tall oil to react with diethanolamine to prepare tall oil diethanolamide; (2) preparing a polyester intermediate by taking the tall oil diethanolamide and dibasic acid with a sulfonic group to react with dihydric alcohol; (3) taking the polyester intermediate, vegetable oil, fatty acid, polyatomic alcohol and polybasic acid to react and adding de-ionized water and dispersing to prepare alkyd resin water dispersoid. The tall oil extracted from the papermaking waste liquid is effectively utilized, and an application range of the tall oil is also expanded.

Description

technical field [0001] The invention belongs to the field of chemical materials, and in particular relates to a water-based tall oil alkyd resin emulsion and a preparation method thereof Background technique [0002] Traditional solvent-based coatings use a lot of organic solvents, causing serious environmental pollution, and consume a large amount of petroleum, high cost, and the emitted gas is harmful to the human body; in the past ten years, with the performance of water-based coatings gradually catching up with solvent-based coatings Coatings, whose application in the field of coatings is expanding day by day, have gradually replaced many conventional solvent-based coatings. With the increasingly stringent restrictions on volatile organic compounds in various countries, as well as the optimization of resins and formulations and the development of suitable additives, the market share of water-based coatings in metal antirust coatings, home decoration coatings, and archite...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/688C08G63/685C08G63/49C08G63/78C09D167/08
CPCC08G63/48C08G63/6854C08G63/6884C08G63/78C09D167/08
Inventor 任龙芳孙燕情强涛涛
Owner FOSHAN GUOHUA CHEM IND
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