High-corrosion resistance acrylate resin and preparation method thereof

An acrylate, high corrosion resistance technology, used in coatings, anti-corrosion coatings, etc., can solve problems such as poor corrosion resistance, and achieve the effects of enhancing adhesion, improving wet adhesion, and improving salt spray resistance

Active Publication Date: 2017-05-31
上海华谊涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The third object of the present invention is to provide a corrosion-resistant one-component acrylic paint, to solve the problem of poor corrosion resistance of one-component acrylic paint

Method used

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  • High-corrosion resistance acrylate resin and preparation method thereof
  • High-corrosion resistance acrylate resin and preparation method thereof
  • High-corrosion resistance acrylate resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1, preparation contains tertiary carbonic acid monomer

[0044] Add 770g of glycidyl tert-carbonate, 4g of trinonylphenyl phosphite, and 0.5g of stannous octoate into the reactor, heat to 90°C, keep it warm for 30 minutes, raise the temperature to 108±3°C, and start adding 227g of methyl The mixture of acrylic acid and 0.1g p-hydroxyanisole was added dropwise at a controlled constant speed, and the drop was completed in about 1 hour. After dripping, keep warm for 2 to 3 hours and measure the acid value. If the acid value is higher than 5mgKOH / g, the temperature is raised to 120°C until the acid value is lower than 5mgKOH / g, and the reaction is terminated to obtain a product containing tertiary acid (ACE) monomer.

[0045] The ACE monomer prepared in Example 1 is a mixture, including the following two main structures:

[0046] Structure I:

[0047] Structure II:

[0048] where: R 1 with R 2 is an alkyl group, R 1 with R 2 The sum of the total numbe...

Embodiment 2

[0049] Embodiment 2, preparation acrylate resin

[0050]Put 200g of xylene into the reactor, blow nitrogen, stir and raise the temperature to 132°C, start to drop 128g of butyl methacrylate, 160g of methyl methacrylate, 40g of octadecyl methacrylate, and 60g of Example 1 to obtain The mixture of monomer ACE, 4g β-acryloyloxypropionic acid, 8g PAM200 and 4g di-tert-butyl peroxide was added dropwise at a controlled rate, and the mixture was dropped in about 3 hours. After keeping warm for 1 hour, add 0.4g Di-tert-butyl peroxide was kept warm for 2 hours, cooled to 80° C., diluted by adding 200 g of xylene, stirred and dispersed to obtain a colorless and transparent acrylate resin.

[0051] The performance parameters of the prepared acrylate resin were detected, as shown in Table 1.

Embodiment 3

[0052] Embodiment 3, preparation acrylate resin

[0053] Add 200g of xylene into the reactor, blow nitrogen, stir and raise the temperature to 132°C, start to drop 168g of styrene, 65.6g of butyl methacrylate, 80g of methyl methacrylate, 40g of lauryl methacrylate, 40g The mixture of monomer ACE, 2.4g β-acryloyloxypropionic acid, 4g PAM200 and 2.4g di-tert-butyl peroxide prepared in Example 1 was added dropwise at a controlled rate, and the mixture was dripped in about 3 hours, and kept warm for 1 After 1 hour, add 0.4 g of di-tert-butyl peroxide, keep warm for 2.5 hours, cool down to 80° C., add 200 g of xylene for dilution, stir and disperse to obtain a colorless and transparent acrylate resin.

[0054] The performance parameters of the prepared acrylate resin were detected, as shown in Table 1.

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Abstract

The invention provides a high-corrosion resistance acrylate resin. A macromolecular tert-carbonyldioxy group, a phosphate-containing group, long-straight chain (meth)acrylate and a long-side chain carboxyl group are uniformly distributed in the molecule chain segment of the high-corrosion resistance acrylate resin, and the acrylate resin comprises, by mass, 40-60% of a solvent, 2.5-10% of a tert-carbonic acid-containing monomer, 0.1-% of a phosphate ester-containing monomer, 2-12% of a long-straight chain (meth)acrylate monomer, 0.2-1.5% of a long-side chain carboxyl monomer, 15-45% of a non-long-straight chain (meth)acrylate monomer, 0-25% of a vinyl monomer and 0.2-1.2% of an initiator. The invention also provides a preparation method of the acrylate resin and a single-component acryalte coating prepared from the acrylate resin. The acrylate resin has excellent weather resistasnce, excellent chemical resistance and good corrosion resistance, and the single-component acryalte coating prepared in the invention has strong adhesion to a substrate, so the single-component acryalte coating can be widely applied to anticorrosive coating systems as a bottom and surface integrated coating.

Description

technical field [0001] The invention belongs to the field of industrial anticorrosion, and relates to an acrylic resin and a preparation method thereof, in particular to an acrylic resin with high corrosion resistance and a preparation method thereof. Background technique [0002] Resins are classified into thermoplastic resins and thermosetting resins according to their film-forming properties. Thermoplastic resins mainly rely on solvent volatilization to form macromolecules into films. There is no chemical reaction in the film-forming process. It is a single-component system and easy to construct. Thermosetting resins are also called reactive cross-linking resins. During the film-forming process, several The cross-linking reaction of the reactive groups of the components makes the coating film have a network structure, so it has good solvent resistance and chemical resistance. [0003] Acrylate resin is a copolymer synthesized from monomers such as acrylate, methacrylate,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/28C08F212/08C08F220/44C08F212/12C08F230/02C09D133/12C09D125/14C09D133/10C09D5/08
CPCC08F212/08C08F220/14C08F220/18C08F220/1804C09D5/08C09D125/14C09D133/10C09D133/12C08F220/1812C08F220/282C08F230/02C08F220/1818C08F220/44C08F212/12
Inventor 章奕
Owner 上海华谊涂料有限公司
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