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Flatting agent for epoxy-polyester powder paint and preparation method thereof

A technology of polyester powder and manufacturing method, which is applied in the field of compounds, can solve problems such as poor mechanical properties and easy yellowing, and achieve the effect of solving poor mechanical properties, good mechanical properties, and good extinction stability

Inactive Publication Date: 2011-12-07
NINGBO SOUTH SEA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned deficiencies, the present invention aims to provide a kind of matting agent for epoxy-polyester powder coating and its manufacture method to the art, make it under certain temperature condition, keep better matting stability when curing, relatively Good mechanical properties, solve the technical problems of poor mechanical properties and easy yellowing of traditional chemical matting agents

Method used

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  • Flatting agent for epoxy-polyester powder paint and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033]100 grams of 0.703mol of glycidyl methacrylate, 20 grams of 0.156mol of butyl acrylate, 30 grams of 0.300mol of methyl methacrylate, 50 grams of 0.384mol of hydroxypropyl acrylate, 4 grams of 0.0243mol of azo Diisobutyronitrile was prepared as a dropwise mixed solution. 200g of toluene was added into a 1000ml three-neck flask, while the temperature was raised and stirred. When the temperature reaches 105°C to 110°C, start to add the mixed solution dropwise, and finish the dropwise addition after 80 minutes, and keep warm at 105°C to 110°C for 2.5 hours. The solvent was distilled off under reduced pressure, and the temperature did not exceed 170°C. Synthetic resin is pulverized and sieved through 120 meshes, then mixed with 2-mercaptobenzothiazole zinc salt 75:25 to make matting agent 1.

Embodiment 2

[0035] The synthetic resin in Example 1 was pulverized and sieved through a 120-mesh sieve and mixed with 2-mercaptobenzothiazole zinc salt 85:15 to make matting agent 2.

Embodiment 3

[0037] 80 grams of 0.563mol of glycidyl methacrylate, 30 grams of 0.234mol of butyl acrylate, 30 grams of 0.300mol of methyl methacrylate, 50 grams of 0.384mol of hydroxypropyl acrylate, 10 grams of 0.096mol of styrene , 4 grams of 0.0243mol of azobisisobutyronitrile was made into a dropwise mixed solution. Dissolve 1 gram of 0.0041 mol of benzoyl peroxide in 40 g of toluene to prepare an additional initiator solution. 200g of toluene was added into a 1000ml three-neck flask, while the temperature was raised and stirred. When the temperature reaches 105°C-110°C, start to add the mixed solution dropwise, and finish the dropwise addition after 80 minutes, and keep the temperature at 105°C-110°C for 1 hour. Start adding initiator solution. Keep warm for 2 hours after the addition is completed. The solvent was distilled off under reduced pressure, and the temperature did not exceed 170°C. Synthetic resin is pulverized and sieved through 120 meshes, and mixed with 2-mercaptoben...

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Abstract

The invention relates to a compound, and in particular relates to a flatting agent for epoxy-polyester powder paint and a preparation method thereof. The flatting agent for the paint is prepared by blending a catalyst with a synthetic carboxyl acrylic resin or synthetic epoxy acrylic resin. The flatting agent is characterized in that based on a 2-mercaptobenzothiazole zinc salt as the catalyst and the synthetic carboxyl acrylic resin or synthetic epoxy acrylic resin as a reactant, the catalyst and the reactant are mixed so as to prepare the flatting agent, wherein the reactant of the synthetic carboxyl acrylic resin comprises a monomer containing a carboxyl group, and the acidic value of the synthetic carboxyl acrylic resin is 100-600KOHg / mg; and the reactant monomer of the synthetic epoxy acrylic resin comprises a monomer containing an epoxy group, and the epoxy equivalent of the synthetic epoxy acrylic resin is 100-600g / eq. The preparation method provided by the invention is practicable; and by using the preparation method in the invention, the obtained flatting agent has good flatting stability and mechanical property, thereby solving the technical problems that the traditional flatting agent is poor in mechanical property and is easy to turn yellow.

Description

technical field [0001] The invention relates to a compound, which is a matting agent for epoxy-polyester powder coating and a manufacturing method thereof, and is prepared by blending a catalyst with carboxyl or epoxy acrylic synthetic resin. technical background [0002] Patent No. ZL03817972.5 disclosed in Chinese patent literature, title of the invention "Powder paint matting agent including ester amide condensation product" The compound of this invention is a suitable matting agent for powder coatings. The compound is an esteramide-containing condensation product optionally including at least one β-hydroxyalkylamide functional group and, for example, from monomeric ester-amides containing β-hydroxyalkylamide groups, oligomeric Polyester-amides or polymeric polyester-amides are prepared by reacting a hydroxyalkylamide containing an ester amide with another compound such that at least one reactive functional group different from the β-hydroxyalkylamide is also present on t...

Claims

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Application Information

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IPC IPC(8): C09D7/12C09D163/00C09D163/02C09D167/00C09D5/03
Inventor 张云伟
Owner NINGBO SOUTH SEA CHEM
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