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Emulsifiable oily medium oil solvent type alkyd resin and preparation method thereof

An alkyd resin and solvent-based technology, which is applied in the field of emulsifiable oily medium-oil solvent-based alkyd resin and its preparation, can solve the problems of poor acid and alkali resistance of the resin, unstable paint film, poor stability, etc., and achieve good adhesion , Improve hydrophilicity, resin hardness and chemical stability

Active Publication Date: 2021-12-31
山东齐鲁漆业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Epoxy resin modification methods include adding emulsifiers and chemical grafting. Adding emulsifiers is a physical mixture, which is prone to phase separation during storage and has poor stability. However, the existing chemical grafting methods usually introduce carboxyl groups into epoxy resin molecules. , sulfonic acid group, amino group and other hydrophilic groups, after being prepared into alkyd resin, the acid and alkali resistance of the resin is poor, the paint film is unstable, and it is easy to cause corrosion to the equipment

Method used

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  • Emulsifiable oily medium oil solvent type alkyd resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] An emulsifiable oily medium-oil solvent-type alkyd resin, consisting of the following raw materials: 40 kg of acrylate modified alkyd resin, 15 kg of polyethylene glycol modified epoxy resin, 30 kg of butyl glycol ether and 20 kg of deionized water;

[0047] Described acrylate modified alkyd resin is prepared according to the following steps:

[0048]Add fatty acid, sorbitol, trimellitic anhydride and methyl methacrylate into the reactor, mix well, heat up to 160°C, stir for 1 hour, cool down to 100°C, dropwise add the mixture of acrylate and initiator, dropwise Control the temperature of the reaction system not to be higher than 120°C during the addition, keep the reaction at 100°C for 2 hours after the dropwise addition, and lower the temperature by 20°C to obtain an acrylate-modified alkyd resin;

[0049] The fatty acid is castor oil;

[0050] The acrylate is butyl acrylate;

[0051] Described initiator is azobisisobutyronitrile;

[0052] Wherein the mass ratio of...

Embodiment 2

[0061] An emulsifiable oily medium-oil solvent-type alkyd resin, consisting of the following raw materials: 50 kg of acrylate modified alkyd resin, 25 kg of polyethylene glycol modified epoxy resin, 40 kg of ethylene glycol butyl ether and 30 kg of deionized water;

[0062] Described acrylate modified alkyd resin is prepared according to the following steps:

[0063] Add fatty acid, sorbitol, trimellitic anhydride and methyl methacrylate into the reactor, mix well and heat up to 180°C, stir for 3 hours, cool down to 120°C, add the mixture of acrylate and initiator dropwise, drop Control the temperature of the reaction system not to be higher than 120°C during the addition, keep the reaction at 120°C for 4 hours after the dropwise addition, and lower the temperature by 30°C to obtain an acrylate-modified alkyd resin;

[0064] The fatty acid is linseed oil;

[0065] The acrylate is isooctyl acrylate;

[0066] Described initiator is benzoyl peroxide;

[0067] Wherein the mass ...

Embodiment 3

[0076] An emulsifiable oily medium-oil solvent-type alkyd resin, consisting of the following raw materials: 42kg of acrylate modified alkyd resin, 22kg of polyethylene glycol modified epoxy resin, 32kg of butyl glycol ether and 28kg of deionized water;

[0077] Described acrylate modified alkyd resin is prepared according to the following steps:

[0078] Add fatty acid, sorbitol, trimellitic anhydride and methyl methacrylate into the reactor, mix well and heat up to 165°C, stir for 1.5 hours, cool down to 105°C, add the mixture of acrylate and initiator dropwise, drop Control the temperature of the reaction system not to be higher than 120°C during the addition, and keep the reaction at 100-105°C for 2.5 hours after the dropwise addition, and then lower the temperature to 24°C to obtain an acrylate-modified alkyd resin;

[0079] The fatty acid is obtained by mixing castor oil and linoleic acid in a mass ratio of 1:1;

[0080] The acrylate is butyl acrylate;

[0081] Describe...

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Abstract

The invention discloses an emulsifiable oily medium oil solvent type alkyd resin and a preparation method thereof, and belongs to the field of alkyd resins. The product is prepared from the following components in parts by weight: acrylate modified alkyd resin, polyethylene glycol modified epoxy resin, ethylene glycol butyl ether and deionized water. According to the invention, the medium oil alkyd resin is prepared from castor oil or / and linseed oil. The yield of castor oil and linseed oil is very abundant in China, and the castor oil and linseed oil have certain affinity with the epoxy resin, so that the epoxy resin has a better emulsification effect; in addition, the acrylic acid modified alkyd resin is adopted, the defect of slow drying of the alkyd resin can be overcome by adding the acrylic acid, the alkyd resin is endowed with excellent quick-drying and self-drying performance; besides, the hydroxyl in the acrylic acid and polyethylene glycol have certain affinity, so that the resin has better emulsifying performance.

Description

technical field [0001] The invention relates to the technical field of alkyd resins, in particular to an emulsifiable oily medium-oil solvent-type alkyd resin and a preparation method thereof. Background technique [0002] Alkyd resin has the advantages of excellent performance and low price. It has broad application prospects in electronic device coatings, home decoration, and mechanical equipment anticorrosion. Among alkyd resins, medium oil alkyd resin has excellent self-drying performance. The price is low, and it can be constructed in various complex environments. As a decorative coating, it is widely used in architectural coatings and mechanical equipment. Traditional medium-oil alkyd resins are prepared from glycerin, but due to the increasing demand for glycerin products in my country, the supply of glycerin raw materials is tight, and the price is rising year by year. Therefore, the production capacity and price of medium-oil alkyd resin are subject to the supply o...

Claims

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Application Information

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IPC IPC(8): C09D167/08C09D187/00C08G63/49C08G81/00
CPCC09D167/08C08G63/48C08G81/00C08L87/005
Inventor 孙亮亮王庆军韩洪太孙振龙李明泽
Owner 山东齐鲁漆业有限公司
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