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Luster-enhancing agent for powder coating as well as preparation method and application of luster-enhancing agent

A powder coating and brightening agent technology, which is applied in powder coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of poor boiling resistance of powder coatings, poor compatibility of powder coating systems, and single molecular structure of brightening agents. Achieve the effects of excellent impact resistance, good compatibility and obvious luster enhancement

Active Publication Date: 2016-09-21
HUANGSHAN HUAHUI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, traditional powder coating brighteners are generally prepared by homopolymerization of butyl acrylate or copolymers of butyl acrylate and methyl methacrylate, but the molecular structure of traditional brighteners is relatively single, which leads to phase differences with powder coating systems. The capacity is poor, and because the general brightener has strong hydrophilicity, but the hydrophobic segment is insufficient, it is easy to migrate out of the coating during use, especially the boiling resistance of the powder coating is slightly poor, which needs to be improved urgently

Method used

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  • Luster-enhancing agent for powder coating as well as preparation method and application of luster-enhancing agent
  • Luster-enhancing agent for powder coating as well as preparation method and application of luster-enhancing agent

Examples

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Effect test

Embodiment 1

[0024] The raw materials for the preparation of the brightening agent described in this embodiment include:

[0025] Dimethyl maleate 20mol, tert-butyl acrylate 35mol, (perfluorocyclohexyl) methacrylate 15mol;

[0026] Cyclopentene accounts for 6% of the total mass of the dimethyl maleate, tert-butyl acrylate and (perfluorocyclohexyl) methacrylate monomers;

[0027] Benzoyl peroxide, accounting for 0.5% of the total mass of dimethyl maleate, tert-butyl acrylate and (perfluorocyclohexyl) methacrylate monomers; and excess N,N-dimethyl base formamide organic solvent.

[0028] The method for preparing powder coating brightening agent described in the present embodiment, comprises the steps:

[0029] (1) Add dimethyl maleate, tert-butyl acrylate and (perfluorocyclohexyl) methacrylate into the mixer and mix thoroughly;

[0030] (2) Cool the mixer with chilled water, control the reaction temperature at 18-20° C., add the benzoyl peroxide of the formula to the mixer and mix evenly;...

Embodiment 2

[0035] The raw materials for the preparation of the brightening agent described in this embodiment include:

[0036] Dimethyl maleate 50mol, tert-butyl acrylate 25mol, (perfluorocyclohexyl) methacrylate 10mol;

[0037] Cyclopentene, accounting for 2% of the total mass of dimethyl maleate, tert-butyl acrylate and (perfluorocyclohexyl) methacrylate monomers;

[0038] Benzoyl peroxide, accounting for 0.2% of the total mass of dimethyl maleate, tert-butyl acrylate and (perfluorocyclohexyl) methacrylate monomers; and excess N,N-dimethyl base formamide organic solvent.

[0039] The method for preparing the brightener for the powder coating in this embodiment is the same as that in Embodiment 1.

Embodiment 3

[0041] The raw materials for the preparation of the brightening agent described in this embodiment include:

[0042] Dimethyl maleate 35mol, tert-butyl acrylate 25mol, (perfluorocyclohexyl) methacrylate 18mol;

[0043] Cyclopentene accounts for 4% of the total mass of the dimethyl maleate, tert-butyl acrylate and (perfluorocyclohexyl) methacrylate monomers;

[0044] Benzoyl peroxide, accounting for 0.3% of the total mass of dimethyl maleate, tert-butyl acrylate and (perfluorocyclohexyl) methacrylate monomers; and excess N,N-dimethyl base formamide organic solvent.

[0045] The method for preparing the brightener for the powder coating in this embodiment is the same as that in Embodiment 1.

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Abstract

The invention belongs to the technical field of powder coatings and in particular relates to a luster-enhancing agent for a powder coating as well as a preparation method and application of the luster-enhancing agent. The luster-enhancing agent for the powder coating, provided by the invention, is prepared from the following raw materials: dimethyl maleate, tert-butyl acrylate and (perfluoro cyclohexyl)methyl acrylate; an end capping agent, an initiating agent and an organic solvent are added and a copolymerization reaction is carried out to obtain the luster-enhancing agent. The luster-enhancing agent for the powder coating, provided by the invention, has better compatibility with the powder coating, and can be used for wetting base materials very well and improving the adhesive force; the coating prepared from the luster-enhancing agent has better anti-impact performance and can be cured into a film very well, and the leveling property of the powder coating is better; the luster-enhancing agent provided by the invention has obvious luster enhancing performance, and can be used for preparing the high-gloss powder coating; a fluoro raw material has the effect of improving the water-resistance property of the luster-enhancing agent, and the water boiling capability is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of powder coatings, and in particular relates to a brightening agent for powder coatings and a preparation method and application thereof. Background technique [0002] With its advantages of economy, environmental protection, high efficiency and excellent performance, powder coatings are gradually replacing organic solvent-based coatings, becoming an important development direction in the coatings industry, and have maintained a relatively fast growth rate. In particular, polyester powder coatings are widely used in the field of coating because of their excellent durability, decoration and processability. [0003] Powder coatings generally use resinous substances as film-forming substances, add curing agents, supplemented by leveling agents, additives, pigments, fillers, brighteners and other components, and process them into powder coatings through mixing, melting and other processes. The powder coating i...

Claims

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Application Information

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IPC IPC(8): C09D5/03C09D7/12C09D167/00C09D163/00C08F222/14C08F220/18C08F220/24C08F232/04
CPCC08F222/14C09D5/033C09D163/00C09D167/00C08F220/18C08F220/24C08F232/04C08L35/02C08K2003/3045
Inventor 何领方向宏杨志萍汤增荣叶敏王永垒商永嘉
Owner HUANGSHAN HUAHUI TECH
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