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Fritted epoxy powder coating and application thereof in low surface treatment of rusty steel pipes

A fusion-bonded epoxy powder and coating technology, which is applied to powder coatings, epoxy resin coatings, and devices for coating liquid on the surface, etc., can solve the problems of high requirements for rust removal on the surface of steel pipes, achieve good anti-corrosion effects, and The joint density is high, and the effect of preventing the penetration of water

Active Publication Date: 2022-02-25
SHANDONG DONGHONG PIPE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the deficiencies in the prior art, the purpose of the present invention is to provide fusion bonded epoxy powder coating and its application in low surface treatment rusty steel pipes, which can solve the pretreatment of steel pipes in the coating process of fusion bonded epoxy powder coatings The problem of high requirements for rust removal on the surface of steel pipes, so that the use of low surface treatment steel pipes can greatly reduce labor intensity, save production costs, and reduce the health hazards of dust and noise in the process of rust removal to construction workers

Method used

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  • Fritted epoxy powder coating and application thereof in low surface treatment of rusty steel pipes

Examples

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Effect test

Embodiment 1

[0061] A fusion bonded epoxy powder consisting of base powder and flour.

[0062] The ratio of raw materials used for the base powder of fusion-bonded epoxy powder is: bisphenol A epoxy resin is YD-012 resin with a softening point of 75°C from Kunshan Guodu Chemical Industry Co., Ltd., and the weight is 30 parts; bisphenol F epoxy resin It is YDF-2001 of Kunshan Guodu Chemical Industry Co., Ltd., and the weight is 30 parts; the modified dicyandiamide curing agent is Amanda115P of Daqing Qinglu Langrun Technology Co., Ltd., and the weight is 2 parts; the accelerator is 2-methylimidazole, and the weight is 0.5 parts parts; the active antirust pigment is a compound of aluminum tripolyphosphate and zinc phosphate, wherein the ratio of aluminum tripolyphosphate and zinc phosphate is 1:1, and the weight is 25 parts; the nanometer metal oxide is nano zinc oxide, and the weight is 5 parts The petroleum resin is C5 petroleum resin, and the weight is 3.5 parts; the leveling agent is the...

Embodiment 2

[0068] A kind of fusion bonded epoxy powder, comprises base powder and flour, and the preparation of base powder and flour is identical with embodiment 1.

[0069] The difference is:

[0070] The ratio of raw materials used for the base powder of fusion-bonded epoxy powder is: bisphenol A type epoxy resin is 603 resin with a softening point of 85°C from Anhui Hengyuan Technology Co., Ltd., and the weight is 20 parts; bisphenol F type epoxy resin The resin is YDF-2004 of Kunshan Guodu Chemical Industry Co., Ltd., with a weight of 35 parts; the modified dicyandiamide curing agent is K7104 of Liuanjietongda, with a weight of 2.5 parts; the accelerator is 2-methylimidazole, with a weight of 0.5 parts; The anti-rust pigment is a compound of aluminum tripolyphosphate and zinc chromate, wherein the ratio of aluminum tripolyphosphate and zinc chromate is 1:1, and the weight is 24 parts; the nano-metal oxide is nano-zinc oxide, and the weight is 10 parts The petroleum resin is C5 petr...

Embodiment 3

[0073] A kind of fusion bonded epoxy powder, comprises base powder and flour, and the preparation of base powder and flour is identical with embodiment 1.

[0074] The difference is:

[0075] The ratio of raw materials used for the base powder of fusion bonded epoxy powder is: bisphenol A type epoxy resin is GESR902L resin with a softening point of 80°C from Hongchang Electronic Materials Co., Ltd., and the weight is 40 parts; bisphenol F type epoxy resin It is YDF-2001 of Kunshan Guodu Chemical Industry Co., Ltd., and the weight is 20 parts; the modified dicyandiamide curing agent is Amanda115P of Daqing Qinglu Langrun Technology Co., Ltd., and the weight is 2 parts; the accelerator is 2-methylimidazole, and the weight is 0.5 parts The active antirust pigment is aluminum tripolyphosphate, and the weight is 23.5 parts; the nanometer metal oxide is nano-zinc oxide, and the weight is 5 parts; the petroleum resin is C5 petroleum resin, and the weight is 5 parts; the leveling agen...

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Abstract

The invention belongs to the technical field of coatings, and relates to a powder coating, in particular to a fritted epoxy powder coating and application thereof in low surface treatment of rusty steel pipes. The fritted epoxy powder coating comprises bottom powder and surface powder, the bottom powder comprises the following raw materials in parts by weight: 20-40 parts of bisphenol A epoxy resin, 20-40 parts of bisphenol F epoxy resin, 1-5 parts of modified dicyandiamide curing agent, 0.1-0.5 part of accelerant, 20-parts of active anti-rust pigment, 5-10 parts of nano metal oxide, 3-5 parts of petroleum resin, 0.5-1 part of flatting agent, 0.5-1 part of defoaming agent, 0.5-1 part of benzoin and 0.5-1 part of powder coupling agent. The fritted epoxy powder coating can be used for coating a low-surface treatment steel pipe, so that the labor intensity is greatly reduced, the production cost is saved, and the harm of dust and noise in the rust removal process to the body health of constructors is reduced.

Description

technical field [0001] The invention belongs to the technical field of coatings, and relates to powder coatings, in particular to fusion bonded epoxy powder coatings and their application in rusted steel pipes with low surface treatment. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Fusion-bonded epoxy powder coating is a kind of coating product that exists in the state of fine powder, which is different from the traditional liquid coating product that uses water or solvent to disperse. Due to the 100% solid content of the fusion bonded epoxy powder coating, there is no volatilization of solvents and toxic substances during the melting and film forming process, and it h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D163/00C09D5/03C09D5/08C09D7/61C09D7/65B05D7/14
CPCC09D163/00C09D5/033C09D5/08B05D7/146C08K2003/327C08K2003/328C08K2003/2296C08K2201/011C08K2003/3045C08L63/00C08L57/02C08K3/22C08K3/32C08K3/30C08K7/26C08K3/26C08K3/34
Inventor 倪奉尧刘智博伍金奎孔涛刘树孔智勇孙之状张亮孔得帅魏义孔德亮
Owner SHANDONG DONGHONG PIPE IND