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Thermoplastic high-temperature-resistant anti-sticking anti-corrosion coating for inner wall of metal pipeline and preparation method thereof

A technology of anti-corrosion coating and high temperature resistance, applied in anti-corrosion coatings, anti-fouling/underwater coatings, coatings, etc., to achieve the effect of reducing interaction force, easy control of production process and good adhesion

Active Publication Date: 2015-12-09
吉林省奕彤新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of anti-sticking, anti-corrosion and water resistance of the inner wall coating of metal pipes under high temperature conditions, the invention provides a thermoplastic high-temperature anti-sticking anti-corrosion coating for the inner wall of metal pipes and its preparation method

Method used

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  • Thermoplastic high-temperature-resistant anti-sticking anti-corrosion coating for inner wall of metal pipeline and preparation method thereof
  • Thermoplastic high-temperature-resistant anti-sticking anti-corrosion coating for inner wall of metal pipeline and preparation method thereof
  • Thermoplastic high-temperature-resistant anti-sticking anti-corrosion coating for inner wall of metal pipeline and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 20 grams of thermoplastic polyethersulfone resin with a logarithmic reduced viscosity of 0.31, 12 grams of polyperfluoroethylene propylene micropowder, 8 grams of iron red pigment, 50 grams of N-methylpyrrolidone, 6 grams of butanone, 20 grams of toluene, 4 After mixing 1 g of xylene, stir at a linear speed of 15 m / s for 15 minutes and then sand mill for 2 hours to obtain a thermoplastic high-temperature-resistant anti-sticking anti-corrosion coating for the inner wall of a metal pipe.

[0028] The inner wall of the metal pipe is coated on the inner wall of the metal pipe with a thermoplastic high temperature resistant anti-stick anti-corrosion paint by air spraying.

[0029] The coating properties are as follows:

[0030]

Embodiment 2

[0032] 30 grams of thermoplastic polyethersulfone resin with a logarithmic viscosity of 0.35, 12 grams of polytetrafluoroethylene micropowder, 1 gram of organic bentonite, 4 grams of iron black pigment, 1.4 grams of mica flakes, 1.4 grams of graphite, and 20 grams of N-formaldehyde Base pyrrolidone, 60 grams of N,N dimethylacetamide, 12 grams of butanone, 60 grams of toluene and 0.2 grams of silicone leveling agent were mixed and stirred at a linear speed of 15 m / s for 15 minutes and then sanded for 4 hours to obtain a metal The inner wall of the pipeline is made of thermoplastic high temperature resistant anti-stick anti-corrosion coating.

[0033] The inner wall of the metal pipe is coated on the inner wall of the metal pipe with a thermoplastic high temperature resistant anti-stick anti-corrosion paint by air spraying.

[0034] The coating properties are as follows:

[0035]

Embodiment 3

[0037] 40 grams of thermoplastic polyethersulfone resin with a logarithmic reduced viscosity of 0.37, 30 grams of tetrafluoroethylene-perfluorovinyl ether copolymerized micropowder, 4 grams of fumed silica, 12 grams of titanium dioxide and 18 grams of iron blue pigment, 40 grams gram of barium sulfate, 20 grams of calcium carbonate whiskers, 24 grams of N-methylpyrrolidone, 67 grams of N,N dimethylformamide, 6 grams of cyclohexanone, 15 grams of butanone, 2 grams of toluene, 42 grams of trimethylbenzene and 4 grams of silicone leveling agent was mixed, stirred at a linear speed of 15 m / s for 30 minutes, and then sanded for 6 hours to obtain a thermoplastic high-temperature-resistant anti-sticking anti-corrosion coating for the inner wall of a metal pipe.

[0038] The inner wall of the metal pipe is coated on the inner wall of the metal pipe with a thermoplastic high temperature resistant anti-stick anti-corrosion paint by air spraying.

[0039] The coating properties are as fo...

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Abstract

The invention provides a high-temperature resistant, anti-sticking and anticorrosive thermoplastic coating for inner walls of metal pipelines and a preparation method thereof, belonging to the technical field of coatings. The coating comprises thermoplastic polyether sulfone resins, high-temperature resistant fluororesins, thixotropic agents, anticorrosion pigments, functional fillers, a complex solvent and auxiliaries in a mass ratio of (10-20):(6-15):(0-2):(2-15):(0-30):(40-78):(0-2). The preparation method is characterized by mixing the thermoplastic polyether sulfone resins, high-temperature resistant fluororesins, thixotropic agents, functional fillers, anticorrosion pigments, complex solvents and auxiliaries and then stirring the mixture at a linear velocity of 15m / s for 15-30 minutes and then sanding the mixture for 2-6 hours. The coating provided by the invention has the characteristics that the coating has good adhesion with metal substrates, has usage temperature up to 260 DEG C, has low surface energy, is oleophobic and lyophobic, prevents contamination and scaling and has strong acid, alkali and corrosion resistance capacities and thin coat. The preparation method is simple, the production process is easy to control and the production equipment is easy to achieve.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a thermoplastic high-temperature-resistant anti-sticking anti-corrosion coating for the inner wall of a metal pipe and a preparation method thereof. Background technique [0002] The coating on the inner wall of the metal pipe not only protects the pipe body from the abrasion of the conveying medium, but also reduces drag and improves the conveying efficiency. Therefore, the key point to be considered in the coating of the inner wall of metal pipes is anti-sticking and anti-corrosion. At the same time, most media transmission processes are carried out at relatively high temperatures, so high temperature resistance needs to be considered. When selecting a coating with high temperature resistance, anti-sticking and anti-corrosion effects, the conveying medium of the pipeline must first be analyzed. [0003] Most of the metal pipelines used in my country's petroleum industry are used to tr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D181/06C09D127/18C09D127/20C09D7/12C09D5/08C09D5/16
Inventor 关绍巍单华俊姜振华王贵宾
Owner 吉林省奕彤新材料有限公司
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