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Epoxy modified acrylic resin and preparation method thereof

An acrylic resin, epoxy modification technology, applied in the direction of coating, etc., can solve the problems of poor control of epoxy resin ring opening, unstable synthetic resin process, easy gelation, etc., to achieve convenient production, good resistance Chemical, inexpensive effect

Inactive Publication Date: 2017-09-01
HUALUN NALU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the cumbersome process of this method and the poor control of the ring opening degree of the epoxy resin, the obtained epoxy ester resin contains multiple C double bonds in the molecule, and it is easy to gel when it is copolymerized with the acrylic acid monomer in the later stage. Synthetic resin process Unstable, so needs improvement

Method used

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  • Epoxy modified acrylic resin and preparation method thereof
  • Epoxy modified acrylic resin and preparation method thereof
  • Epoxy modified acrylic resin and preparation method thereof

Examples

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Effect test

Embodiment 1

[0022] An epoxy-modified acrylic resin provided in this embodiment includes raw material A component and a solvent based on 50% of the solidified portion of raw material A component, wherein the ratio of raw material A component is as follows in parts by weight: 25-28 parts of methyl acrylate; 18-20 parts of styrene; 28-32 parts of butyl (meth)acrylate; 18-22 parts of hydroxy (meth)acrylate; 1-3 parts of amine (meth)acrylate ; 1.5-2 parts of initiator, 6-10 parts of bisphenol A epoxy resin and 5-10 parts of (meth)acrylamide; the solvent is calculated according to the following weight percentages: xylene 80-82%, propylene glycol methyl ether Acetate 18-20%.

[0023] Preferably, the initiator is 3,5,5-trimethylhexanoic acid tert-butyl peroxide, peroxy-2-ethylhexanoic acid tert-butyl ester, peroxybenzoic acid tert-butyl ester, benzyl peroxide One or more of acyl, di-tert-butyl peroxide, di-tert-amyl peroxide, and dicumyl peroxide. In this embodiment, the initiators are tert-but...

Embodiment 2

[0031] An epoxy-modified acrylic resin provided in this embodiment includes raw material A component and a solvent based on 50% of the solidified portion of raw material A component, wherein the ratio of raw material A component is as follows in parts by weight: 28 parts of methyl acrylate; 20 parts of styrene; 32 parts of butyl (meth)acrylate; 22 parts of hydroxy (meth)acrylate; 3 parts of amine (meth)acrylic acid; 10 parts of epoxy resin and 10 parts of (meth)acrylamide; the solvent is calculated according to the following weight percentages: xylene 82%, propylene glycol methyl ether acetate 18%.

[0032] This embodiment also discloses a preparation method of epoxy-modified acrylic resin, which specifically includes the following steps:

[0033] (a) First put the bisphenol A type epoxy resin and xylene in the formula raw materials into the reactor, feed N2 for protection, start the reactor and stir, so that the two are completely dissolved and the temperature is raised to 11...

Embodiment 3

[0038]An epoxy-modified acrylic resin provided in this embodiment includes raw material A component and a solvent based on 50% of the solidified portion of raw material A component, wherein the ratio of raw material A component is as follows in parts by weight: 26-28 parts of methyl acrylate; 19-20 parts of styrene; 30-32 parts of butyl (meth)acrylate; 20-22 parts of hydroxy (meth)acrylate; 2-3 parts of amine (meth)acrylate ; 1.8-2 parts of initiator, 8-10 parts of bisphenol A epoxy resin and 8-10 parts of (meth)acrylamide; the solvent is calculated according to the following weight percentages: xylene 81-82%, propylene glycol methyl ether Acetate 18-19%.

[0039] This embodiment also discloses a preparation method of epoxy-modified acrylic resin, which specifically includes the following steps:

[0040] (a) First put the bisphenol A type epoxy resin and xylene in the formula raw materials into the reactor, feed N2 for protection, start the reactor and stir, so that the two a...

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Abstract

The invention discloses epoxy modified acrylic resin and a preparation method thereof. The epoxy modified acrylic resin comprises a raw material component A and a solvent counted by 50% of a curing part of the raw material component A, wherein the raw material component A is prepared from the following raw materials in parts by weight: 25 to 28 parts of methylmethacrylate, 18 to 20 parts of styrene, 28 to 32 parts of (methyl)butyl acrylate, 18 to 22 parts of (methyl)hydroxyl acrylate ester, 1 to 3 parts of (methyl)acrylic amide, 1.5 to 2 parts of initiating agent, 6 to 10 parts of bisphenol A epoxy resin, and 5 to 10 parts of (methyl)acrylic amide; the solvent is prepared from the following raw materials in percentage by weight: 80 to 82 percent of xylene, and 18 to 20 parts of propylene glycol monomethyl ether acetate. According to the epoxy modified acrylic resin and the preparation method of the epoxy modified acrylic resin disclosed by the invention, the epoxy modified acrylic resin is synthesized by adopting a bridging role of the (methyl)acrylic amide in a one-step method; the process is high in controllability and the production is convenient; the used raw material (methyl)acrylic amide is easy to get on the market, the price is relatively cheap, and the produced product has preferable market competitiveness.

Description

technical field [0001] The invention relates to the technical field of acrylic resin, in particular to an epoxy-modified acrylic resin and a preparation method thereof. Background technique [0002] Acrylic resin is a very important variety of coating resins. Its synthesis process is highly controllable, and it also has excellent weather resistance and pigment dispersibility, and its proportion in coating resins is increasing. There are three types of acrylic resins currently on the market: [0003] 1. There are thermosetting acrylic resins that can be baked and cross-linked with amino resins; [0004] 2. Hydroxy acrylic resin reacted with NCO; [0005] 3. Thermoplastic acrylic resin formed into film by solvent volatilization. [0006] However, with the increase in the amount of acrylic resin, more requirements have been put forward for the performance of acrylic resin. Coatings require good adhesion. [0007] However, common acrylic resins are difficult to meet the req...

Claims

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Application Information

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IPC IPC(8): C08F283/10C08F220/18C08F220/14C08F212/08C08F220/28C08F220/56C09D151/08
CPCC08F283/10C09D151/08C08F220/1804
Inventor 吴志贤郭昌盛田骏胡文杰
Owner HUALUN NALU NEW MATERIALS
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