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Special anticorrosion conductive powder coating for vertical shaft fluidized bed dip-coating as well as preparation method and application of coating

An anti-corrosion conductive and powder coating technology, applied in powder coatings, anti-corrosion coatings, conductive coatings, etc., can solve problems such as poor fluidization effect and no patent publications have been found, so as to ensure anti-corrosion performance, self-healing performance, construction simple effect

Active Publication Date: 2015-06-17
阜阳市诗雅涤新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, none of the existing powder coatings can meet the above requirements, and the fluidization effect is not good, so it cannot meet the existing use requirements.
[0004] Through the search, no patent publications related to the patent application of the present invention have been found

Method used

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  • Special anticorrosion conductive powder coating for vertical shaft fluidized bed dip-coating as well as preparation method and application of coating
  • Special anticorrosion conductive powder coating for vertical shaft fluidized bed dip-coating as well as preparation method and application of coating
  • Special anticorrosion conductive powder coating for vertical shaft fluidized bed dip-coating as well as preparation method and application of coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] A preparation method and application of a special anti-corrosion conductive powder coating for shaft fluidized bed dip coating. The raw material components and parts by weight are respectively:

[0068]

[0069] The steps of the preparation method of the above-mentioned special anti-corrosion conductive powder coating for shaft fluidized bed dip coating are as follows:

[0070] (1) Preparation of polyaniline:

[0071] ① Synthesis of polyaniline by emulsion polymerization: Add aniline and dodecylbenzene into the reactor (the ratio of the amount of the two substances is 2:1), mix well and then add water and xylene (both are just solvents) , do not participate in the reaction, an appropriate amount can be used), fully stir until a transparent emulsion is obtained;

[0072] ②Then add ammonium persulfate (NH 4 ) 2 S 2 o 8 aqueous solution (the ratio of ammonium persulfate to aniline is 1:1), the color of the system gradually becomes darker, keep the temperature of th...

Embodiment 2

[0079] A preparation method and application of a special anti-corrosion conductive powder coating for shaft fluidized bed dip coating. The raw material components and parts by weight are respectively:

[0080]

[0081]

[0082] The preparation method of the above-mentioned special anti-corrosion conductive powder coating for shaft fluidized bed dip coating, the steps are as follows:

[0083] Accurately weigh each component, put it into the mixer, and mix for 6-15 minutes. After fully mixing evenly, discharge the material into the hopper of the twin-screw extruder. The temperature of the first zone of the extruder is 90-95 degrees, and the temperature of the second zone is 100 -105 degrees, screw speed 350-450 rpm, extrude, cool and press tablet, then mix the normal temperature tablet with nano-alumina or white carbon black, and then enter the ACM air classification cyclone pulverizer for ultrafine pulverization , sieve, control the particle size, use a laser particle siz...

Embodiment 3

[0086] A preparation method and application of a special anti-corrosion conductive powder coating for shaft fluidized bed dip coating. The raw material components and parts by weight are respectively:

[0087]

[0088] Nano-alumina or nano-fumed silica (commonly known as white carbon black): 1-5kg.

[0089] The preparation method of the above-mentioned special anti-corrosion conductive powder coating for fluidized bed dipping in shafts is the same as that in Example 1.

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Abstract

The invention relates to a special anticorrosion conductive powder coating for vertical shaft fluidized bed dip-coating. The special anticorrosion conductive powder coating is prepared from the following raw materials in parts by weight: 500-900 parts of film-forming resin and curing agent, 0-200 parts of glass flakes, 0-350 parts of filler, 15-50 parts of auxiliaries, 5-100 parts of conductive material and 1-5 parts of nanometer aluminum oxide or nano fumed silica. The powder coating has the characteristics of a high glass transition temperature, low specific gravity which is generally less than or equal to 1.1g / cm<3>, and easiness for fluidization; even though hundreds of tons of powder is added to a 20m deep well, the powder can be fluidized easily and uniformly; in case of too high specific gravity and difficult fluidization, the vertical shaft dip-coating method can not be utilized; the powder aims at a hot-dip coating construction process, and the film formed by the coating has surface conduction characteristics and high temperature water boiling resistance, and therefore, the coating is suitable for anti-corrosion coating of long linear workpieces such as mine mining anti-explosion gas pipelines, natural gas pipelines and liquefied gas pipelines; the coating is adaptive to the vertical shaft fluidized beds as deep as 20m, and still has good fluidity, which cannot be realized by common powders easily.

Description

technical field [0001] The invention belongs to the technical field of powder coatings, and in particular relates to a functional powder coating, in particular to a special anti-corrosion conductive powder coating for vertical well fluidized bed dip coating and its preparation method and application. Background technique [0002] Our country needs to use a large number of anti-corrosion conductive pipes in the fields of mining, natural gas transportation, chemical production, and west-to-east gas transmission. These pipes need to conduct static electricity and flame retardancy. Since the diameter of the pipe is generally large and the single pipe is often very long, many suitable coating processes have also been developed, the earliest being 3PE pipes and 2PE pipes, and now it has evolved into fusion-bonded epoxy powder coating pipes as the mainstream. Dip-coating conductive flame-resistant fusion-bonded epoxy powder coating for shafts is the most affirmed solution nowadays....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D163/04C09D163/10C09D167/00C09D175/04C09D5/03C09D5/24C09D5/08C09D7/12
CPCC08K2201/011C08L2205/03C09D5/03C09D5/08C09D5/24C09D7/40C09D163/00C09D163/04C09D163/10C08L79/02C08K7/00C08K7/10C08K2003/2227C08K3/36C08L63/04C08K3/04C08L63/00
Inventor 彭富程王焱王鹏飞田志立王娜娜王倩彭云
Owner 阜阳市诗雅涤新材料科技有限公司
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