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Internal anti-corrosion method of cement pipe, anti-corrosion coating and preparation method thereof

A technology for anti-corrosion coatings and anti-corrosion coating layers, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of no obvious protective effect against oil erosion, poor adhesion of concrete pipes, easy leaching, etc., and achieve a good surface Protective effect, convenient steps, excellent performance effect

Active Publication Date: 2019-05-14
天津市蓟州区鑫宏盛旺水泥制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these coatings have a certain antibacterial ability, they have poor adhesion to concrete pipes, are easy to leach, and have no obvious protective effect on oil erosion in sewage.

Method used

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  • Internal anti-corrosion method of cement pipe, anti-corrosion coating and preparation method thereof
  • Internal anti-corrosion method of cement pipe, anti-corrosion coating and preparation method thereof
  • Internal anti-corrosion method of cement pipe, anti-corrosion coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In parts by mass: 30 parts of epoxy resin, 5 parts of reactive diluent, 10 parts of titanium dioxide, 3 parts of barium sulfate, 5 parts of red iron oxide, 0.5 parts of nano-zinc oxide, 0.5 parts of additives, 20 parts of curing agent and 15 parts of Parts of non-reactive diluent, weigh appropriate amount of raw materials for each component;

[0041] Among them, the epoxy resin is: E-51 bisphenol A epoxy resin, the reactive diluent is: allyl glycidyl ether; the additives are: wetting and dispersing agent AT-203, leveling agent BYK-354 and defoamer Silicone defoamer, wherein the mass ratio of wetting dispersant, leveling agent and defoamer is 1:1:1; the curing agent is: cashew nut shell epoxy curing agent; the non-reactive diluent is: xylene A mixed solution with petroleum ether, wherein the volume ratio of xylene to petroleum ether is 1:2.

[0042] Then, prepare the anticorrosion coating according to the following steps:

[0043] (1) At room temperature, add epoxy res...

Embodiment 2

[0048] According to the mass fraction: 50 parts of bisphenol A epoxy resin, 10 parts of reactive diluent, 15 parts of titanium dioxide, 8 parts of barium sulfate, 15 parts of red iron oxide, 5 parts of nano-zinc oxide, 1 part of auxiliary agent, 30 parts of curing agent And 25 parts of non-reactive diluents, weigh appropriate amount of raw materials of each component respectively;

[0049] Among them, the epoxy resin is: E-44 epoxy resin; the reactive diluent is: butyl glycidyl ether; the additives are: wetting and dispersing agent AT-203, leveling agent BYK-354 and defoaming agent silicone defoaming Among them, the mass ratio of wetting and dispersing agent, leveling agent and defoaming agent is 1:2:1; the curing agent is: polyamide curing agent; the non-reactive diluent is: mixed solution of xylene and petroleum ether , wherein the volume ratio of xylene to petroleum ether in milliliters is 1:1.

[0050] Then, prepare the anticorrosion coating according to the following ste...

Embodiment 3

[0056] In parts by mass: 40 parts of epoxy resin, 8 parts of reactive diluent, 12 parts of titanium dioxide, 6 parts of barium sulfate, 10 parts of red iron oxide, 3 parts of nano-zinc oxide, 0.8 parts of auxiliary agent, 25 parts of curing agent and 20 parts of Parts of non-reactive diluent, weigh an appropriate amount of each raw material component;

[0057] Among them, the epoxy resin is E-42 bisphenol A epoxy resin; the reactive diluent is: dimethyl glycidyl ether; the additives are: wetting and dispersing agent AT-203, leveling agent BYK-354 and defoamer organic Silicon defoamer, wherein, the mass ratio of wetting dispersant, leveling agent and defoamer is 1:2:2; the curing agent is: cashew nut shell epoxy curing agent; the non-reactive diluent is: xylene and A mixed solution of petroleum ether, wherein the volume ratio of xylene to petroleum ether in milliliters is 2:3.

[0058] Then, according to the method described in Example 2, the anticorrosion coating of Example 3...

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Abstract

The invention provides a cement pipe internal anticorrosion method, anticorrosion paint and a preparation method of the anticorrosion paint. According to the cement pipe internal anticorrosion method, epoxy resin coats the inside of a cement pipe, so that the inner surface of the cement pipe can be effectively prevented from fluid corrosion and erosion. Meanwhile, the anticorrosion paint can be used in the cement pipe internal anticorrosion method; in the anticorrosion paint, nanometer zinc oxide is used as a filler and is compounded with pigments and fillers such as epoxy resin and titanium dioxide, and an auxiliary agent and a curing agent to be used, so that the anticorrosion paint has good anticorrosion performance; meanwhile, excellent impact resistant performance and good adhesion performance are also realized. Further, according to the preparation method, the anticorrosion paint ingredient is used as a raw material; the preparation method has the advantages that the operation steps are convenient and fast; the prepared anticorrosion paint has excellent performance; the use effect is good, and the like.

Description

technical field [0001] The invention relates to the field of anti-corrosion coatings, in particular to a method for anti-corrosion inside a cement pipe, an anti-corrosion coating and a preparation method thereof. Background technique [0002] Cement pipelines are usually used to transport sewage generated in production and life. Since these sewage usually contain grease and sludge, it is easy to form sludge on the inner wall of the cement pipe and block the pipeline; at the same time, microorganisms and corrosive substances in sewage are easy to Penetrates into the gap of the pipeline, causing corrosion of the pipeline and shortening the life of the pipeline. [0003] In the existing technology, a protective layer is mainly coated inside the pipeline, the purpose of which is to enhance the wear resistance of the pipeline, and to prevent microorganisms and corrosive substances from penetrating into the pipeline space to cause pipeline corrosion and prolong the life of the pip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D163/00C09D7/61C09D5/08F16L58/10
CPCC08K3/22C08K3/30C08K2003/2241C08K2003/2296C08K2003/3045C08K2201/011C09D5/08C09D7/61C09D163/00F16L58/1009
Inventor 闫景新
Owner 天津市蓟州区鑫宏盛旺水泥制品有限公司
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