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Preparation method of aqueous rusty convertible anticorrosive paint

A technology of anti-corrosion paint and production method, applied in the direction of anti-corrosion paint and coating, can solve the problems of poor decoration and poor water resistance, and achieve the effect of good rust and anti-corrosion performance

Inactive Publication Date: 2012-06-27
CHANGSHA GUTERUI NOVEL MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing water-soluble rusty materials generally have problems such as poor water resistance and poor decoration.

Method used

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  • Preparation method of aqueous rusty convertible anticorrosive paint

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Comparison scheme
Effect test

Embodiment 1

[0028] A water-based rust conversion anti-corrosion coating:

[0029] 1. Raw material formula

[0030] Carbon 40 parts

[0031] 30 parts of sulfonic acid

[0032] Phosphoric acid 30 parts

[0033] Trialkylsilane 20 parts

[0034] Phosphate 10 parts

[0035] Tannic acid 5 parts

[0036] EDTA 5 parts

[0037] OP-10 nonionic surfactant 5 parts

[0038] Phosphating agent 5 parts

[0039] 2. And prepare according to the following process steps and process parameters:

[0040] (1) Solvothermal carbonization and acidification to prepare nano-solid carbon sulfonic acid and carbon phosphoric acid.

[0041] (2) Use the polyhydroxyl surface of the carbon material to react with trialkoxysilane for modification.

[0042] (3) Phosphate, tannic acid, EDTA and other complex organic compounds are used as penetration enhancers.

[0043] (4) Use OP-10 and other non-ionic surfactants to emulsify and disperse the metal surface oil in the material to achieve the purpose of oil use, and t...

Embodiment 2

[0045] A water-based rust conversion anti-corrosion coating:

[0046] 1. Raw material formula

[0047] Carbon 50 parts

[0048] Sulfonic acid 20 parts

[0049] Phosphoric acid 20 parts

[0050] Trialkylsilane 15 parts

[0051] Phosphate 7 parts

[0052] Tannic acid 7 parts

[0053] EDTA 7 parts

[0054] OP-10 nonionic surfactant 5 parts

[0055] Phosphating agent 5 parts

[0056] 2. And prepare according to the following process steps and process parameters:

[0057] (1) Solvothermal carbonization and acidification to prepare nano-solid carbon sulfonic acid and carbon phosphoric acid.

[0058] (2) Use the polyhydroxyl surface of the carbon material to react with trialkoxysilane for modification.

[0059] (3) Phosphate, tannic acid, EDTA and other complex organic compounds are used as penetration enhancers.

[0060] (4) Use OP-10 and other non-ionic surfactants to emulsify and disperse the metal surface oil in the material to achieve the purpose of oil use, and then ...

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Abstract

The invention relates to a preparation method of an aqueous rusty convertible anticorrosive paint, comprising the following steps of: (1) thermally carbonizing and acidizing a solvent to prepare nano solid carbon sulfonic acid and carbon phosphoric acid; (2) carrying out reaction modification by utilizing the polyhydroxy surface of a carbon material with trialkoxysilane; (3) taking complexation-type organic compounds, such as phosphate, tannic acid and EDTA (Ethylene Diamine Tetraacetic Acid) and the like as penetration enhancers; (4) emulsifying and dispersing metal surface grease to the materials by nonionic surfactants, such as OP-10 and the like to achieve the goal of application with oil; and (5) optimizing the formula of the material by taking bonderite as an additive by utilizing an orthogonal experimental method. The aqueous rusty convertible anticorrosive paint has primer functions, is rusty, aqueous and oily, performs good rusty corrosion resistance, can resist the corrosion of media such as sulfuric acid, hydrogen nitrate, muriatic acid, phosphoric acid, saline water, alkali, gasoline, diesel oil, petroleum and pitch and can be used for a long time in the environment of the media.

Description

technical field [0001] The invention relates to a preparation method of a water-based rust-converted anticorrosion coating. Background technique [0002] At present, there are three types of anti-corrosion materials with rust at home and abroad: one is the permeable material that separates and surrounds the rust by using the wet penetration of the paint on the loose rust; the other is the combination of active pigments that are produced by slow hydrolysis The coordination anion and the active rust form insoluble complex multi-acid complexes to stabilize the stable rust material; the third is to use conversion agents (such as phosphoric acid, potassium ferrocyanide or tannic acid, salicylic acid, etc.) It reacts with rust and transforms the active rust into a harmless and protective coordination or chelate conversion type rusty material. The former two have limited derusting ability and are only suitable for steel surface coating with a thin rust layer. The latter has a fast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D5/08C09D7/12
Inventor 李东华
Owner CHANGSHA GUTERUI NOVEL MATERIAL SCI & TECH
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