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Toughening type steel bar anti-corrosion powder coating and preparation method thereof

A powder coating and toughening technology, used in powder coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of poor low temperature toughness and easy to be corroded, so as to improve toughness, enhance anti-corrosion performance, and improve anti-corrosion performance. Effect

Inactive Publication Date: 2021-07-30
甘肃西部邦奇装饰材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a toughened anti-corrosion powder coating for steel bars and its preparation method, which solves the problem of poor low-temperature toughness and easy corrosion of steel bar powder coatings in the prior art

Method used

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  • Toughening type steel bar anti-corrosion powder coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A toughened anticorrosion powder coating for steel bars: it is characterized in that: it is made of the following components by weight:

[0038] Base powder 60kg, bonding agent polyethylene wax powder 0.5kg, loosening agent alumina C 0.15kg, glass flakes 2kg.

[0039] The weight of each component of the base powder is: E-12 epoxy resin 35 kg, curing agent phenolic hydroxyl resin 5.90 kg, toughening curing agent polyurethane B1530 4.70 kg, curing accelerator Curezol C11Z 0.66 kg, leveling agent GLP288 0.53 kg , Defoamer benzoin 0.60kg, filler precipitated barium sulfate 7.76kg, filler talc powder 0.42kg, titanium dioxide 3.32kg, pigment phthalocyanine blue 0.42kg, coupling agent W-6670 0.69kg.

[0040] Phenolic hydroxyl resin (self-made), hydroxyl value 0.5 mol / 100g. The average particle size of the base powder is 20-45 μm.

[0041] The preparation method comprises the following steps:

[0042] (1) Preparation of base powder:

[0043] a. Put the components of the abo...

Embodiment 2

[0054] A toughened anticorrosion powder coating for steel bars: it is characterized in that: it is made of the following components by weight:

[0055] Base powder 60kg, bonding agent fluorine-modified polyethylene wax powder 0.4kg, loosening agent fumed silica 0.1kg, glass flake 2.3kg.

[0056] The weight of each component of the base powder is: E-12 epoxy resin 35 kg, curing agent phenolic hydroxyl resin 5.36 kg, toughening curing agent polyurethane BF1320 4.96 kg, curing accelerator Curezol C17Z 0.57 kg, leveling agent GLP288 0.58 kg , Defoamer polyethylene wax powder 0.50kg, filler precipitated barium sulfate 7.1kg, filler light calcium carbonate 1.62kg, titanium dioxide 3.24kg, pigment carbon black 0.49kg, coupling agent ND-782 0.58kg.

[0057] Phenolic hydroxyl resin (self-made), the hydroxyl value is 0.5 mol / 100g, and the average particle size of the primer is 20-45μm.

[0058] The preparation method and coating detection method are the same as in Example 1. The test ...

Embodiment 3

[0060] A toughened anticorrosion powder coating for steel bars: it is characterized in that: it is made of the following components by weight:

[0061] Base powder 60kg, bonding agent polytetrafluoroethylene wax powder 0.5kg, loosening agent alumina C 0.15kg, glass flakes 2.7kg.

[0062] The weight of each component of the base powder is: E-12 epoxy resin 35 kg, curing agent phenolic hydroxyl resin 5.73 kg, toughening curing agent polyurethane AdditoL X1428 5.31 kg, curing accelerator Curezol C11Z 0.62 kg, leveling agent GLP2880. 66kg, defoamer polypropylene composite micropowder wax 0.54kg, filler precipitated barium sulfate 6.79kg, filler silicon powder 0.83kg, filler titanium dioxide 3.32kg, pigment phthalocyanine green 0.50kg and coupling agent ND-783 0.70kg.

[0063] Phenolic hydroxyl resin (self-made), the hydroxyl value is 0.5 mol / 100g, and the average particle size of the primer is 20-45μm.

[0064] The preparation method and coating detection method are the same as i...

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Abstract

The invention relates to a toughened steel bar anti-corrosion powder coating and a preparation method thereof. The powder coating is prepared from the following components in parts by weight: 60 parts of base powder, 1-5 parts of glass flakes, 0.2-1 part of a bonding aid and 0.1-0.3 part of a bulking agent. The base powder is prepared from the following components in percentage by weight: 60 to 85 percent of resin, curing agent and toughening curing agent, 0.5 to 2 percent of curing accelerator, 0.7 to 1.5 percent of flatting agent, 0.2 to 1.5 percent of defoaming agent, 5 to 20 percent of filler, 0.5 to 5 percent of pigment and 0.2 to 1.5 percent of coupling agent. The invention further provides a preparation method of the toughening type steel bar anti-corrosion powder coating. A coating formed by the toughening type steel bar anti-corrosion powder coating has excellent corrosion resistance and low-temperature flexibility, and is especially suitable for protection of concrete steel bars in a severe environment.

Description

technical field [0001] The invention belongs to the field of powder coatings, and in particular relates to a toughened anti-corrosion powder coating for steel bars and a preparation method thereof. Background technique [0002] Powder coating is a solvent-free green and environmentally friendly coating that has developed rapidly in recent years. It is a solid powder coating composed of solid resin, pigments, fillers and additives. At room temperature, it is electrostatically sprayed or fluidized bed dipped. Finally, it is heated and baked, and cured into a flat and hard coating film after chemical crosslinking. [0003] Concrete reinforcement structures have been widely used in modern construction projects. Concrete is a porous gel. Oxygen, moisture and other corrosive media in the air can erode reinforcement through pores and fine cracks, reducing the mechanical properties of reinforcement. When it turns into rust, its volume will expand dozens of times, resulting in concr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D175/04C09D5/08C09D5/03C09D7/61
CPCC09D163/00C09D5/08C09D5/033C08K2003/3045C08K2003/2241C08K2003/265C08L75/04C08K7/00C08K3/40C08K3/30C08K3/34C08K3/22C08K3/26C08K3/36C08K13/04
Inventor 陈玉滨张小兵王赵会
Owner 甘肃西部邦奇装饰材料科技有限公司
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