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Hydroxylated acrylic resin as well as preparation method and application thereof

A technology of hydroxy acrylic acid and hydroxy acrylate, applied in the coating and other directions, can solve the problems that the weather resistance of the coating film cannot be compared with that of the fluorocarbon coating, the reaction conditions of the fluorocarbon resin are harsh, and the curing of the paint film is difficult, and the production cost is reached. Low, high hardness, fast drying effect

Active Publication Date: 2011-10-19
JINZHOU DPF TH CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the acrylic polyurethane paint film has many excellent properties, such as excellent mechanical properties, high fullness, high elasticity and high hardness, etc., the weather resistance of the paint film cannot be compared with that of fluorocarbon coatings.
However, fluorocarbon resin has the disadvantages of harsh reaction conditions, expensive reaction equipment, high resin cost, and difficulty in curing the paint film at room temperature.

Method used

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  • Hydroxylated acrylic resin as well as preparation method and application thereof
  • Hydroxylated acrylic resin as well as preparation method and application thereof
  • Hydroxylated acrylic resin as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Raw material distribution table

[0027]

[0028] The whole reaction was carried out under the protection of nitrogen environment

[0029] (1) Add xylene, ethylene glycol ethyl ether acetate and glycidyl tertiary carbonic acid ester into the reactor according to the raw material dosage table, and raise the temperature to 155°C;

[0030] (2) Mix acrylic acid, methyl methacrylate, butyl acrylate, hydroxyethyl acrylate, perfluorobutyl ethyl acrylate and di-tert-butyl peroxide evenly, and add dropwise for 3.5 hours;

[0031] (3) Keep warm for 1.5 hours;

[0032] (4) Then cool down to 40°C and discharge to obtain a hydroxyacrylic resin with a molecular weight of 15,000. The properties of the obtained hydroxyacrylic resin are shown in Table 3.

[0033] Described hydroxyl acrylic resin is used as the application of coating raw material, and its concrete steps are as follows:

[0034] (1) Use xylene to adjust the viscosity of hydroxyacrylic resin, apply -4 cup and measure...

Embodiment 2

[0040] Raw material distribution table

[0041]

[0042] The whole reaction was carried out under the protection of nitrogen environment

[0043] (1) Add xylene, ethylene glycol ethyl ether acetate and glycidyl tertiary carbonic acid ester into the reactor according to the raw material dosage table, and raise the temperature to 150°C;

[0044] (2) Mix acrylic acid, methyl methacrylate, butyl acrylate, hydroxyethyl acrylate, perfluorobutyl ethyl acrylate and di-tert-butyl peroxide evenly, and add dropwise for 3.0 hours;

[0045] (3) Keep warm for 1.5 hours;

[0046] (4) Then cool down to 65°C and discharge to obtain a hydroxyacrylic resin with a molecular weight of 10,000. The properties of the obtained hydroxyacrylic resin are shown in Table 3.

[0047] Described hydroxyl acrylic resin is used as the application of coating raw material, and its concrete steps are as follows:

[0048] (1) Use xylene to adjust the viscosity of hydroxyacrylic resin, apply -4 cup for 90 seco...

Embodiment 3

[0054] Raw material distribution table

[0055]

[0056] The whole reaction was carried out under the protection of nitrogen environment

[0057] (1) Add xylene, ethylene glycol ethyl ether acetate and glycidyl tertiary carbonic acid ester into the reactor according to the raw material dosage table, and raise the temperature to 160°C;

[0058] (2) Mix acrylic acid, methyl methacrylate, butyl acrylate, hydroxyethyl acrylate, perfluorobutyl ethyl acrylate and di-tert-butyl peroxide evenly, and add dropwise for 4.0 hours;

[0059] (3) keep warm for 2.0 hours;

[0060] (4) Then cool down to 70°C and discharge to obtain a hydroxyacrylic resin with a molecular weight of 20,000. The properties of the obtained hydroxyacrylic resin are shown in Table 3.

[0061] Described hydroxyl acrylic resin is used as the application of coating raw material, and its concrete steps are as follows:

[0062] (1) Use xylene to adjust the viscosity of hydroxyacrylic resin, apply it to a -4 cup and...

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Abstract

The invention relates to hydroxylated acrylic resin as well as preparation method and application thereof. The hydroxylated acrylic resin has a structural formula, wherein n is equal to 4, the sum of C number in 6, 8, R1 and R2 is 9, and the molecular weight is 10,000-20,000; the preparation method comprises the steps of: adding solvent and reactive solvent into a reaction vessel under protectionof nitrogen gas environment, and increasing temperature to 150-160 DEG C; evenly mixing acrylic acid, methyl methacrylate, ethyl acrylate, hydroxyethyl acrylate and perfluoroalkylethyl acrylate monomer with initiator, and carrying out dropwise addition for 3-4 hours; carrying out heat insulation for 1.5-2 hours; and reducing temperature to 40-70 DEG C for discharging, thus obtaining hydroxylated acrylic resin. A paint film formed by the hydroxylated acrylic resin and a curing agent has properties of both acrylic polyurethane and fluorocarbon coating. The prepared hydroxylated acrylic resin can carry out reaction smoothly at normal temperature and normal pressure, has low production cost, can be cured at normal temperature and be applied in the fields of ships, containers, drilling platforms, anticorrosion of steel structures, outer wall coating of high-rise buildings and the like.

Description

technical field [0001] The invention relates to a hydroxy acrylic resin and its preparation method and application. Background technique [0002] In recent years, acrylic coatings have developed rapidly due to their outstanding characteristics such as light film color, water white transparency, yellowing resistance, abrasion resistance, mildew resistance, gloss and color retention, etc. Its advantages are widely used as raw materials for automobile paint, motorcycle paint, plastic paint, wood paint, hardware baking paint, architectural paint and fireproof paint. [0003] Although the acrylic polyurethane paint film has many excellent properties, such as excellent mechanical properties, high fullness, high elasticity and high hardness, etc., the weather resistance of the paint film cannot be compared with that of fluorocarbon coatings. However, fluorocarbon resins have the disadvantages of harsh reaction conditions, expensive reaction equipment, high resin cost, and difficul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/28C08F220/24C08F220/18C09D133/12
Inventor 魏宣魏潇金菁
Owner JINZHOU DPF TH CHEM CO LTD
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