Aluminum baking varnish hydroxy acrylic resin and preparation method and application thereof

A technology of baking varnish hydroxyacrylic acid and hydroxyacrylic acid, which is applied in the direction of coating, etc., can solve the problems of high environmental conditions, large investment in coating equipment, poor weather resistance, etc., and achieve reduced production costs, high adhesion, and superior fullness. Effect

Active Publication Date: 2022-02-25
山东凯威尔新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the cross-linked and cured acrylic coatings on the market are generally troublesome to construct, and many varieties also need radiation curing, which requires high environmental conditions, and requires the use of better equipment and more skilled coating skills.
Moreover, common epoxy paints have strong adhesion to inorganic materials such as cement and metal, but have poor weather resistance and can only be used as interior paints, and the investment in coating equipment is large and the cost is too high

Method used

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  • Aluminum baking varnish hydroxy acrylic resin and preparation method and application thereof
  • Aluminum baking varnish hydroxy acrylic resin and preparation method and application thereof
  • Aluminum baking varnish hydroxy acrylic resin and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0043] The aluminum baking varnish hydroxyacrylic resin described in the present embodiment 1 is composed of the following raw materials in terms of mass percentage:

[0044] Monomer 60%

[0045] Initiator 1.8%

[0046] Solvent 38.2%;

[0047] Described monomer, by mass percentage, is made up of following raw material:

[0048]

[0049] Described initiator, by mass percentage, is made up of following raw material:

[0050] tert-butyl peroxy-2-ethylhexanoate 80%

[0051] Azobisisobutyronitrile 20%;

[0052] Described solvent is ethylene glycol butyl ether.

[0053] The preparation method of the aluminum baking varnish hydroxyacrylic resin described in the present embodiment 1 consists of the following steps:

[0054] (1) Add 75wt% primer solvent ethylene glycol butyl ether and acrylamide to the four-necked reaction flask, and heat up to 125° C. under nitrogen atmosphere;

[0055](2) Add the remaining acrylic acid monomers to the monomer dropping tank: ethyl acrylate, ...

Embodiment 2

[0057] The aluminum baking varnish hydroxyacrylic resin described in the present embodiment 2 is composed of the following raw materials in terms of mass percentage:

[0058] Monomer 59%

[0059] Initiator 2%

[0060] Solvent 39%;

[0061] Described monomer, by mass percentage, is made up of following raw material:

[0062]

[0063] Described initiator, by mass percentage, is made up of following raw material:

[0064] tert-butyl peroxy-2-ethylhexanoate 80%

[0065] Azobisisobutyronitrile 20%;

[0066] Described solvent is ethylene glycol butyl ether.

[0067] The preparation method of the aluminum baking varnish hydroxyacrylic resin described in the present embodiment 2 is made up of the following steps:

[0068] (1) Add 70wt% primer solvent ethylene glycol butyl ether and fumaric acid in the four-necked reaction flask, and heat up to 125° C. for insulation under a nitrogen atmosphere;

[0069] (2) Add remaining acrylic acid monomers in the monomer dropping tank: et...

Embodiment 3

[0071] The aluminum baking varnish hydroxyacrylic resin described in the present embodiment 3 is composed of the following raw materials in terms of mass percentage:

[0072] Monomer 58.6%

[0073] Initiator 2.5%

[0074] Solvent 38.9%;

[0075] Described monomer, by mass percentage, is made up of following raw material:

[0076]

[0077] Described initiator, by mass percentage, is made up of following raw material:

[0078] tert-butyl peroxy-2-ethylhexanoate 90%

[0079] Azobisisobutyronitrile 10%;

[0080] Described solvent is ethylene glycol butyl ether.

[0081] The preparation method of the aluminum baking varnish hydroxyacrylic resin described in the present embodiment 3 consists of the following steps:

[0082] (1) Add 75wt% primer solvent ethylene glycol butyl ether and fumaric acid in the four-necked reaction flask, and heat up to 125° C. for insulation under a nitrogen atmosphere;

[0083] (2) Add remaining acrylic acid monomers in the monomer dropping tank...

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Abstract

The invention belongs to the technical field of acrylic resin, and particularly relates to aluminum baking varnish hydroxyl acrylic resin and a preparation method and application thereof. The hydroxy acrylic resin is prepared from the following raw materials in percentage by mass: 58-62% of monomers, 1-3% of an initiator and 35-40% of a solvent. The monomers comprise the following raw materials: ethyl acrylate, dibutyl fumarate, butyl methacrylate, styrene, butyl acrylate, hydroxyethyl methylacrylate, methacrylic acid, fumaric acid and acrylamide; wherein the fumaric acid and the acrylamide cannot be 0 at the same time. The hydroxy acrylic resin for the aluminum baking varnish has the characteristics of high hardness, high gloss and high adhesive force. According to the preparation method of the hydroxy acrylic resin for the aluminum baking varnish, the solvent is added by adopting a two-step method, so that not only can the ideal resin molecular weight be obtained, but also the polymerization reaction time can be shortened, and the production cost is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of acrylic resin, and in particular relates to a hydroxyacrylic resin made of aluminum baking varnish and its preparation method and application. Background technique [0002] Acrylic resin coatings have excellent light resistance and weather resistance due to the unique structure of acrylic monomers. In addition, the presence of ester groups can prevent the crystallization of acrylic coatings and improve the solubility of resins in different media and the compatibility of various resins. Due to its superior light resistance and outdoor aging resistance, acrylic coatings are mainly used in car paints. In addition, they are widely used in light industry, household appliances, metal furniture, aluminum products, coil industry, construction, textiles and other industries. [0003] Generally, acrylic paints dry quickly and are easy to construct, but the thickness and fullness of the coating film are poor, the gl...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F222/14C08F212/08C08F220/20C08F220/06C08F220/56C09D133/08
CPCC08F220/1802C09D133/26C09D133/066C08F222/14C08F220/1804C08F212/08C08F220/20C08F220/06C08F220/56
Inventor 常鹏马金玉宋元刚高杰
Owner 山东凯威尔新材料有限公司
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