High-temperature-resistant corrosion-resistant coating material and preparation method of coating based on the coating material

A technology of anti-corrosion coatings and anti-corrosion coatings, applied in the direction of anti-corrosion coatings, coatings, etc., to achieve the effect of simple ingredients, low cost and simple process

Inactive Publication Date: 2014-05-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a new type of high-efficiency temperature-resistant chlorine-resistant anti-corrosion Paint and method for producing coatings based on the same

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Weigh 100g of water-soluble phenolic resin (the content of phenolic resin is 53%) and 25g of diatomaceous earth. The two raw materials were stirred in a three-neck flask at a rotation speed of 500 rpm for 3 hours to obtain a mixture. Its viscosity was measured to be 1560mps.

[0030] Take 321 stainless steel sheet, after ultrasonic cleaning, dry. The mixture obtained above was evenly coated on the surface of the 321 stainless steel sheet with a coating roller. The coated 321 stainless steel sheet was placed in a fume hood for 5 hours, and then the 321 stainless steel sheet was dried and cured in an oven at 150° C. for 14 hours to completely remove the solvent.

[0031] Place the dried and cured sheet in a sintering furnace, maintain a nitrogen atmosphere, and carbonize at 650°C for 24 hours to obtain a high temperature resistant anti-corrosion coating. Coating thickness is 0.3mm, density is 0.78g / cm 3 .

[0032] The coated sheet was put into a muffle furnace at 700...

Embodiment 2

[0034] Weigh 100g of water-soluble phenolic resin (the content of phenolic resin is 53%) and 10g of diatomaceous earth. The two raw materials were stirred in a three-neck flask at a rotation speed of 500 rpm for 1.5 hours to obtain a mixture. Its viscosity was measured to be 650mps.

[0035] Take 321 stainless steel sheet, after ultrasonic cleaning, dry. The mixture obtained above was evenly coated on the surface of the 321 stainless steel sheet with a coating roller. Place the coated 321 stainless steel sheet in a fume hood for 3 hours, then place the 321 stainless steel sheet in an oven at 150° C. to dry and cure for 12 hours to completely remove the solvent.

[0036] Place the dried and cured sheet in a sintering furnace, maintain a nitrogen atmosphere, and carbonize at 650°C for 24 hours to obtain a high temperature resistant anti-corrosion coating. Coating thickness is 0.1mm, density is 0.97g / cm 3 .

[0037] The coated sheet was put into a muffle furnace at 700°C and...

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PUM

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Abstract

The invention provides a high-temperature-resistant corrosion-resistant coating material. The coating material comprises, based on the total weight of each component in the coating material, 70-92 wt% of liquid phenolic resin and 8-30 wt% of porous silicon dioxide. In the liquid phenolic resin, the content of phenolic resin is 40-60 wt% and the phenolic aldehyde carbon residue rate is 40-65 wt%. The coating material is simple in component and low in cost. A coating obtained by processing can protect metal equipment operated in conditions of high temperature, high chlorine content and high acidity. The technology of the preparation method of the high-temperature-resistant corrosion-resistant coating is simple and easily achieved. The coating is sintered and carbonized in high temperature so that the coating has larger adhesive force and better high-temperature resistance and corrosion resistance.

Description

technical field [0001] The invention relates to a high temperature resistant anticorrosion coating and a preparation method of a coating based on the coating. Background technique [0002] At present, the decomposition methods of rare earth concentrates are mainly acid decomposition method, alkali decomposition method and high temperature chlorination method. Decomposing rare earth concentrates by chlorination can directly produce anhydrous rare earth chloride, which is convenient for molten salt electrolysis to produce mixed rare earth metals. The chlorination process is usually to mix carbon and rare earth concentrate to form pellets, and directly pass chlorine gas under the high temperature of the vertical chlorination furnace, and produce chlorides of rare earth metals according to the differences in the boiling points of different chlorides formed. [0003] However, because the equipment corrodes severely under the condition of chlorine gas, the popularization of this ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D161/06C09D5/08C09D7/12
Inventor 张龙贵侯家祥刘宣伯任毅蔡小光罗水源
Owner CHINA PETROLEUM & CHEM CORP
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