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Fatty acid modified waterborne alkyd resin and preparation method thereof

A water-based alkyd resin, fatty acid modification technology, applied in coatings, polyester coatings and other directions, can solve the problems of poor water resistance, high cost, poor economic benefits, etc., to increase the density of the paint film, excellent hydrolysis resistance, Good substrate protection

Inactive Publication Date: 2020-10-13
HUALUN NALU NEW MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in order to achieve water solubility, conventional water-based alkyd resins must retain a considerable number of hydrophilic groups on the main chain of the molecule. The disadvantages of poor water resistance and substrate protection of the paint film
[0004] Therefore, due to the high acid value and poor water resistance of the conventional water-based alkyd resin, the prepared coating has poor protection to the substrate; the disadvantages of high cost and poor economic benefit restrict the promotion and development of the industry.

Method used

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  • Fatty acid modified waterborne alkyd resin and preparation method thereof
  • Fatty acid modified waterborne alkyd resin and preparation method thereof
  • Fatty acid modified waterborne alkyd resin and preparation method thereof

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Embodiment 1

[0032]

Embodiment 2

[0034]

Embodiment 3

[0036]

[0037] Compared with the water-based alkyd resins currently prepared in the paint industry, the traditional water-based process routes are roughly divided into four types. The traditional preparation methods of water-based alkyd resins are compared with the preparation methods of the present invention:

[0038] Traditional preparation method of waterborne alkyd resin:

[0039] Preparation method 1: In the later stage of the reaction, trimellitic anhydride is introduced as a hydrophilic monomer, and neutralized to form a salt to obtain a water-soluble alkyd resin;

[0040] Preparation method 2: first prepare a water-based alkyd prepolymer, and then prepare a water-based alkyd resin by grafting (meth)acrylic acid monomers and neutralizing to form a salt;

[0041] Preparation method 3. Water-based alkyd resin is prepared by introducing sulfonate monomer (such as isophthalic acid-5-sulfonate) into the polymer chain

[0042] Preparation method 4: First react to form a ...

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Abstract

The invention relates to fatty acid modified waterborne alkyd resin, and particularly relates to fatty acid modified waterborne alkyd resin and a preparation method thereof. The waterbone alkyd resinsynthesized by adopting conventional easily available raw materials and innovating a process route has the advantages of good water resistance, good coating decoration, excellent weather resistance, hydrolysis resistance of resin and the like, and is relatively low in price.

Description

technical field [0001] The invention relates to a fatty acid modified water-based alkyd resin, in particular to a fatty acid modified water-based alkyd resin and a preparation method thereof. Background technique [0002] With the development of society, human beings continue to ask for natural resources, and the environmental pollution caused by economic development is becoming more and more serious. Therefore, reducing resource consumption, reducing pollution and damage to the earth on which we live, and the development of high efficiency and low consumption have become the common goal of all mankind. subject. Realizing a recyclable economy and minimizing the demand for petroleum resources are becoming the focus and focus of research in the coatings industry. Water-based coatings are favored by the coatings industry because they use water as the dispersion medium and use less or no volatile organic solvents. They have become a hot research topic in universities, scientifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/183C08G63/181C08G63/78C08G63/49C09D167/02C09D167/08
CPCC08G63/183C08G63/181C08G63/78C08G63/48C09D167/02C09D167/08
Inventor 吴志贤戴忠程惠顾龙戴晨
Owner HUALUN NALU NEW MATERIALS
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