Thermosetting acrylic resin for powder coating as well as synthesis method and applications of thermosetting acrylic resin

A technology of acrylic resin and powder coating, applied in coating and other directions, can solve the problems of lack of promotion, high price, complex synthesis process, etc., and achieve the effects of no industrial waste pollution, uniform molecular weight, excellent surface hardness and high gloss.

Active Publication Date: 2014-03-05
阜阳市诗雅涤新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its high price and complex synthesis process, it has not been popularized in my country.

Method used

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  • Thermosetting acrylic resin for powder coating as well as synthesis method and applications of thermosetting acrylic resin
  • Thermosetting acrylic resin for powder coating as well as synthesis method and applications of thermosetting acrylic resin
  • Thermosetting acrylic resin for powder coating as well as synthesis method and applications of thermosetting acrylic resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A thermosetting acrylic resin for powder coatings, its raw material components and parts by weight are as follows:

[0054]

[0055] The synthetic method of thermosetting acrylic resin for powder coating as mentioned above, the steps are as follows:

[0056] (1) Pump 950L of xylene solvent (accounting for 95% of the total amount of solvent, the remaining 5% with 10% of the initiator is mixed for the final addition), fill the nitrogen protection from the bottom of the reaction kettle, start the stirrer, and slowly raise the temperature, and raise the temperature of the solvent in the kettle to 120±3°C (120±3°C) within 30 to 60 minutes ℃ is the temperature when xylene or ethylene glycol monomethyl ether is used as the solvent, if toluene is used as the solvent, it is 110 ℃), maintain the temperature and fill the whole process with nitrogen protection;

[0057] (2) The first five kinds of materials in the present embodiment are weighed in parts by weight, mixed with in...

Embodiment 2

[0063] A thermosetting acrylic resin for powder coatings, its raw material components and parts by weight are as follows:

[0064]

[0065]

[0066] The synthetic method of thermosetting acrylic resin for powder coating as mentioned above is the same as that of Example 1.

Embodiment 3

[0068] A thermosetting acrylic resin for powder coatings, its raw material components and parts by weight are shown in Table 1:

[0069] Table 1 The components and contents of thermosetting acrylic resin for powder coatings

[0070]

[0071] The synthetic method of thermosetting acrylic resin for powder coating as mentioned above is the same as that of Example 1.

[0072] The indexes of thermosetting acrylic resin for powder coating of the present invention are as follows:

[0073]

[0074] It can be seen from the above indicators that the thermosetting acrylic resin for powder coatings meets the standard.

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Abstract

The invention relates to thermosetting acrylic resin for a powder coating. The thermosetting acrylic resin is prepared from the following raw materials in parts by mass: 4-14 parts of an initiator, 110-280 parts of soft monomers, 400-570 parts of hard monomers, 192-450 parts of functional monomers, and 1-8 parts of a molecular weight regulator, wherein the soft monomers refer to acrylic acid alkyl ester compounds, and the hard monomers refer to methacrylate, styrene, or compounds of derivatives of methacrylate and styrene. The acrylic resin contains epoxy functional groups and hydroxyl functional groups simultaneously, wherein the epoxy equivalent is 570-630g/mol and the hydroxyl value is 40-50mgKOH/g; the acrylic resin can react with various substances such as carboxyl, amidogen and isocyanate and can be used for powder coating. A coating film, which is formed after the thermosetting powder coating prepared from the acrylic resin in combination with other materials is sprayed, has excellent weather resistance, good leveling performance, outstanding surface hardness, and high glossiness, durability and decorating performance; the powder coating can be used for indoor or outdoor metal sectional materials or building materials. The thermosetting acrylic resin can substitute for TGIC (triglycidyl isocyanurate) to a certain extent so as to avoid the use of the toxic substances.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and relates to resins and their synthesis, in particular to a thermosetting acrylic resin for powder coatings and its synthesis method and application. Background technique [0002] China is the country with the largest production and consumption of powder coatings in the world, accounting for more than 40% of the world. Powder coatings used in outdoor environments account for a considerable proportion, while my country's outdoor powder coatings are currently dominated by TGIC (triglycidyl isocyanurate) cured carboxyl polyester, TGIC is triglycidyl isocyanurate, which is irritating And the shortcomings of affecting reproductive genetics, its biological toxicity has been a consensus, it has been banned in Europe. People in the powder industry in China have also made great efforts to find products to replace TGIC, such as hydroxyalkylamide HAA, hydantoin epoxy, tetramethoxymethyl glycoluri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/28C08F212/08C08F220/32C08F230/08C08F2/38C09D133/12C09D125/14
Inventor 彭云王鹏飞
Owner 阜阳市诗雅涤新材料科技有限公司
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