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A kind of epoxy anticorrosion powder liquid coating and preparation method thereof

A liquid coating and powder coating technology, applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve problems such as heating, melting and curing, improve adhesion and flexibility, simple coating process, and reduce production cost effect

Active Publication Date: 2016-09-28
孟鋆辉 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the anti-corrosion effect of electrostatic spraying powder coating is generally recognized, it can only be used for anti-corrosion of steel pipes. If it is used for anti-corrosion of steel tanks, ships, special-shaped pipes, radiators, etc., it cannot solve the problem of heating, melting and curing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1. First, put 100kg of modified epoxy anticorrosion powder coating and 140kg of ketone solvent into the dissolving tank, mix and stir for 5 minutes, soak and dissolve for 20 minutes, stir for 10 minutes, then add 2.0kg of surface finishing agent methyl silicone oil, phthalate Dibutyl formate 2.0kg, ethylenediamine 0.6kg were mixed and stirred for 10 minutes, then dispersed and stirred at a high speed for 10 minutes, and after filtration, the finished epoxy anti-corrosion powder liquid coating was obtained. Viscosity detection: 26s; test results of painting samples: curing time: surface dry time (room temperature) 20min, hard drying time (room temperature) 48h; coating surface is smooth, uniform in color, no bubbles and no shrinkage cavities; adhesion: level 1; 10J impact: no pinhole; 24h cathodic disbondment: 3.0mm; 3°bending resistance: no crack. Meet the quality requirements.

Embodiment 2

[0014] Example 2, first put 100kg of modified epoxy anti-corrosion powder coating and 150kg of ketone solvent into the dissolving tank, mix and stir for 5min, soak and dissolve for 20min, stir for 10min, then add surface finishing agent methyl silicone oil 2kg, phthalic acid 2kg of dibutyl ester and 0.3kg of ethylenediamine were mixed and stirred for 10 minutes, then dispersed and stirred at a high speed for 10 minutes, and after filtration, it was W1-01 epoxy anti-corrosion powder liquid coating. Viscosity detection: 31s; Smear test results: Curing time: surface dry time (room temperature) 50min, hard drying time (room temperature) 56h; coating appearance: smooth surface, uniform color, no bubbles and no shrinkage cavity; adhesion: level 1 ; 10J impact resistance: no pinholes; 24h cathodic disbondment: 5.0mm; 3°bending resistance: no cracks. The surface of the coating is soft and does not meet the quality requirements.

Embodiment 3

[0015] Example 3, first put 100kg of modified epoxy anticorrosion powder coatings and 160 ketone solvents into the dissolving tank, mix and stir for 5 minutes, soak and dissolve for 20 minutes, stir for 10 minutes, then add 4kg of surface finishing agent methyl silicone oil, phthalic acid 4kg of dioctyl ester, 1.0kg of hexamethylenediamine were mixed and stirred for 10 minutes, then dispersed and stirred at high speed for 10 minutes. After filtering, it was W1-01 epoxy anti-corrosion powder liquid coating. Viscosity detection: 21s; test results of painted samples: curing time: surface dry time (room temperature) 14min, hard drying time (room temperature) 46h; coating appearance: smooth surface, uniform color, no bubbles and no shrinkage cavities; adhesion: level 1 ; 10J impact resistance: cracks; 24h cathodic disbondment: 3.0mm; 3°bending resistance: cracks. Does not meet quality requirements.

[0016] Coating and curing anti-corrosion at room temperature, anti-corrosion coat...

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PUM

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Abstract

The invention provides an epoxy anti-corrosion powder liquid coating. The epoxy anti-corrosion powder liquid coating comprises, by weight, 100 parts of modified epoxy anti-corrosion powder coatings, 0.3 part to 1 part of amine cross-linking agent, 1.0 part to 4.0 parts of surface finishing agent methyl silicone oil, 2.0 parts to 4.0 parts of plasticizers and 130 parts to 160 parts of ketone solvents. By means of the epoxy anti-corrosion powder liquid coating, the problem that epoxy powder is solidified during normal-temperature brushing is solved, the adhesive force of the coating is increased, the flexible performance of the coating is improved, and therefore the coating has the good anti-corrosion effect, the high impact resistance, the high surface rigidity and the high abrasion resistance; the epoxy anti-corrosion powder liquid coating is an ideal anti-corrosion coating good in anti-corrosion effect, and the anti-corrosion technology is simple and convenient.

Description

Technical field: [0001] The invention relates to an anticorrosion material coated and cured at normal temperature inside and outside of steel tanks, special-shaped pipes, ships and process radiators, and belongs to an epoxy anticorrosion powder liquid coating and a preparation method thereof. Background technique: [0002] At present, in the construction of various oil fields in China, there are many materials used for internal and external anti-corrosion of steel tanks, special-shaped pipes, ships, and process radiators, but the coating can have the same anti-corrosion effect as electrostatic spraying epoxy anti-corrosion powder coating, and can There are few anti-corrosion materials that are coated and cured at room temperature. Especially for the application of oil field oil storage, water storage tank body and ship outer body, there are fewer high-quality anti-corrosion coatings suitable for coating and curing at room temperature. Since the anti-corrosion effect of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/12
CPCC09D5/08C09D7/63C09D7/65C09D163/00C08L83/04C08K5/17C08K5/12
Inventor 孟鋆辉
Owner 孟鋆辉
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