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Powder coating and preparation method and application thereof

A powder coating and coating technology, used in powder coatings, fireproof coatings, coatings, etc., can solve the problems of high cost and difficult to meet the large demand of high-end buildings, and achieve super weather resistance, excellent adhesion, and uniform dispersion. Effect

Pending Publication Date: 2022-02-25
GUANGZHOU KINTE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the fluorocarbon coatings currently used in the high-end construction industry are solvent-based fluorocarbon coatings, which cannot avoid the VOCs (volatile organic compounds) produced during the coating process, which poses a huge challenge to environmental protection
Moreover, the preparation cost of solvent-based fluorocarbon coatings is relatively high, which makes it difficult to meet the large demand of the high-end construction industry

Method used

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  • Powder coating and preparation method and application thereof
  • Powder coating and preparation method and application thereof
  • Powder coating and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] This embodiment is a powder coating and its preparation method.

[0084] The powder coating of the present embodiment is made by the preparation raw material of following mass parts:

[0085]

[0086] Among them, the fluorocarbon resin is a homopolymer of vinylidene fluoride with a purity ≥ 99.99%. The melt index of the fluorocarbon resin is 8g / 10min to 25g / 10min, the melting point is 165°C to 175°C, and the bulk density is 200g / L to 500g / L.

[0087] The acid value of the acrylic resin is ≤2.0mgKOH / g; the glass transition temperature of the acrylic resin is 60°C; the intrinsic viscosity of the acrylic resin is 0.40.

[0088] The preparation method of the present embodiment powder coating is made up of the following steps:

[0089] S1. Weigh acrylic resin, titanium dioxide R-312, barium sulfate Ba-8000, benzoin, leveling agent, adhesion promoter and inorganic pigment in a mixing tank, mix thoroughly and crush for 2 minutes to obtain a mixture.

[0090] S2. Extruding...

Embodiment 2

[0094] This embodiment is a powder coating and its preparation method.

[0095] The powder coating of the present embodiment is made by the preparation raw material of following mass parts:

[0096]

[0097]

[0098] Among them, the fluorocarbon resin is a homopolymer of vinylidene fluoride with a purity ≥ 99.99%. The melt index of the fluorocarbon resin is 8g / 10min to 25g / 10min, the melting point is 165°C to 175°C, and the bulk density is 200g / L to 500g / L.

[0099] The acid value of the acrylic resin is ≤2.0mgKOH / g; the glass transition temperature of the acrylic resin is 60°C; the intrinsic viscosity of the acrylic resin is 0.40.

[0100] The preparation method of the present embodiment powder coating is made up of the following steps:

[0101] S1. Weigh acrylic resin, titanium dioxide R-312, barium sulfate Ba-8000, benzoin, leveling agent, adhesion promoter and inorganic pigment in a mixing tank, mix thoroughly and crush for 2 minutes to obtain a mixture.

[0102] S...

Embodiment 3

[0106] This embodiment is a powder coating and its preparation method.

[0107] The powder coating of the present embodiment is made by the preparation raw material of following mass parts:

[0108]

[0109]

[0110] Among them, the fluorocarbon resin is a homopolymer of vinylidene fluoride with a purity ≥ 99.99%. The melt index of the fluorocarbon resin is 8g / 10min to 25g / 10min, the melting point is 165°C to 175°C, and the bulk density is 200g / L to 500g / L.

[0111] The acid value of the acrylic resin is ≤2.0mgKOH / g; the glass transition temperature of the acrylic resin is 60°C; the intrinsic viscosity of the acrylic resin is 0.40.

[0112] The preparation method of the present embodiment powder coating is made up of the following steps:

[0113] S1. Weigh acrylic resin, titanium dioxide R-312, barium sulfate Ba-8000, benzoin, leveling agent, adhesion promoter and inorganic pigment in a mixing tank, mix thoroughly and crush for 2 minutes to obtain a mixture.

[0114] S...

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Abstract

The invention belongs to the technical field of coatings, and particularly discloses a powder coating and a preparation method and application thereof, and the powder coating comprises fluorocarbon resin, acrylic resin, a filler, an auxiliary agent and an inorganic pigment; the fluorocarbon resin is selected from vinylidene fluoride homopolymers with the purity being greater than or equal to 99.99%, and the acrylic resin is selected from methyl methacrylate homopolymers. According to the powder coating, the thermoplastic acrylic resin and the fluorocarbon resin are selected as a film forming system, the formed coating has high weather resistance, then multiple auxiliaries are added, the toughness and adhesive force of the coating are further improved, and the conventional performance of the coating can be met under the condition that the weather resistance reaches the standard, and the coating is ensured to have long-acting protection and beauty effects on high-end building exterior decorations.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a powder coating and its preparation method and application. Background technique [0002] In the field of high-end product coating, super weather-resistant powder coating is the key choice of the industry. Fluorocarbon coatings have ultra-high weather resistance due to the chemical structure of the material itself, which has become the main goal of the industry. For example, high-end building exteriors use super weather-resistant coatings obtained from fluorocarbon coatings to protect buildings. Fluorocarbon coatings determine the quality of high-end building exteriors. In order to ensure their good exterior effects, fluorocarbon coatings need to meet various performance requirements. [0003] At present, most of the fluorocarbon coatings used in the high-end construction industry are solvent-based fluorocarbon coatings, which cannot avoid the VOCs (volatile organic compounds...

Claims

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Application Information

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IPC IPC(8): C09D127/16C09D133/12C09D5/03C09D7/61B05D7/24B05D7/14B05D3/02
CPCC09D127/16C09D5/033C09D5/18B05D7/24B05D7/14B05D3/0254C08K2003/2241C08K2003/3045C08L2201/08B05D2202/10B05D2202/25C08L33/12C08K3/22C08K3/30
Inventor 梁泳田张策高庆福史中平郑俊威曹秋秋
Owner GUANGZHOU KINTE IND
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