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Waterborne alkyd resin and preparation method thereof

A technology of water-based alkyd resin and epoxy resin, which is applied in the field of resin materials

Pending Publication Date: 2022-01-28
珠海展辰新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of this application is to provide a water-based alkyd resin and its preparation method, aiming to solve the technical problem of how to improve the gasoline resistance of alkyd resin

Method used

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  • Waterborne alkyd resin and preparation method thereof
  • Waterborne alkyd resin and preparation method thereof
  • Waterborne alkyd resin and preparation method thereof

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preparation example Construction

[0041] The second aspect of the embodiment of the present application provides a preparation method of water-based alkyd resin, the preparation method comprising the following steps:

[0042] S01: Provide the raw materials of the water-based alkyd resin of the embodiment of the present application, and divide the catalyst into two parts;

[0043] S02: Mix epoxy resin, polyol, organic acid, polyurethane polyol and a catalyst in the reflux solvent, perform the first reaction, and then remove the solvent to obtain the first reaction product;

[0044] S03: mixing the first reaction product with acrylic acid monomer and another part of catalyst, performing a second reaction to obtain a second reaction product;

[0045] S04: Dilute the second reaction product with a diluent solvent, and then filter to obtain a water-based alkyd resin.

[0046] The preparation method of the water-based alkyd resin provided in the embodiment of the present application, the polyurethane polyol formed ...

Embodiment 1

[0056] A kind of waterborne alkyd resin, its preparation raw material comprises the component of following parts by weight:

[0057]

[0058] Wherein, the epoxy resin is a mixture of 50 parts of epoxy resin E-51 and 60 parts of epoxy resin E-20. The polyol was a mixture of 30 parts neopentyl glycol and 150 parts trimethylolpropane. The organic acid was a mixture of 15 parts benzoic acid, 60 parts isophthalic acid, 45 parts phthalic anhydride and 130 parts soyoleic acid. The catalyst was a mixture of 0.4 parts dibutyltin dilaurate and 0.2 parts t-butyl peroxide. 60 parts of polyurethane polyol, obtained by polymerization of triphenylmethane triisocyanate, dicyclohexylmethane-4,4'-diisocyanate and polycarbonate diol in a mass ratio of 20:2:210. The acrylic monomer was a mixture of 60 parts styrene, 100 parts methyl methacrylate, 20 parts divinylbenzene, 30 parts methacrylic acid and 50 parts butyl acrylate. The reflux solvent was 60 parts xylene. The dilution solvent is a...

Embodiment 2

[0065] A kind of waterborne alkyd resin, its preparation raw material comprises the component of following parts by weight:

[0066]

[0067] Wherein, the epoxy resin is a mixture of 30 parts of epoxy resin E-51 and 50 parts of epoxy resin E-20. The polyol was a mixture of 60 parts pentaerythritol and 80 parts trimethylolpropane. The organic acid was a mixture of 20 parts phthalic anhydride, 60 parts isophthalic acid, 20 parts adipic acid and 150 parts tunglinoleic acid. The catalyst was a mixture of 0.4 parts of dibutyltin dilaurate and 0.1 part of tert-butyl peroxide, divided into two equal parts. 80 parts of polyurethane polyol, obtained by polymerization of triphenylmethane triisocyanate, dicyclohexylmethane-4,4'-diisocyanate and polycarbonate diol at a mass ratio of 15:2:230. The acrylic monomer was a mixture of 30 parts styrene, 60 parts methyl methacrylate, 45 parts isobornyl acrylate, 15 parts methacrylic acid and 70 parts vinyltrimethoxysilane. The reflux solven...

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Abstract

The invention relates to the technical field of resin materials, in particular to waterborne alkyd resin and a preparation method thereof. The water-based alkyd resin is prepared from the following raw materials in parts by weight: 50 to 200 parts of epoxy resin; 100 to 300 parts of polyol; 100 to 450 parts of organic acid; 30 to 80 parts of polyurethane polyol; 0.1 to 6 parts of a catalyst; 100 to 300 parts of an acrylic monomer; 40 to 100 parts of a reflux solvent; and 200 to 300 parts of a diluting solvent. The polyurethane polyol is obtained by polymerizing isocyanate and polycarbonate diol. The adhesive force, the water resistance and the gasoline resistance of the waterborne alkyd resin are improved, so that the waterborne alkyd resin has a good application prospect in the field of coatings.

Description

technical field [0001] The application belongs to the technical field of resin materials, and in particular relates to a water-based alkyd resin and a preparation method thereof. Background technique [0002] Alkyd resin coatings are widely used in wood decoration, railway vehicle decoration, automobile industry decoration and other fields because of their good weather resistance, gloss retention, flexibility, water resistance, and salt spray resistance. With the rapid development of industrial coatings in recent years, the requirements for gasoline resistance of alkyd resin coatings are getting higher and higher, and alkyd resin, as the basic material of alkyd resin coatings, has played a very important role. [0003] The synthesis of alkyd resin is generally formed by condensation polymerization of polyhydric alcohol, organic acid, phthalic anhydride and fatty acid or oil (triglyceride fatty acid ester). Modified to prepare water-based alkyd resin. According to the numbe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/685C08G63/85C08G63/87
CPCC08G63/6854C08G63/85C08G63/87
Inventor 陈小龙陈寿生刘志刚
Owner 珠海展辰新材料股份有限公司
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