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Nano oxide wrapped mica iron oxide anti-rust pigment and preparation method thereof

A technology of micaceous iron oxide and nano-oxide, which is applied in chemical instruments and methods, anti-corrosion coatings, inorganic pigment treatment, etc., can solve the problems that zinc chrome yellow cannot be replaced, and achieve the effect of improving adhesion and simple process

Inactive Publication Date: 2013-09-18
HEBEI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The applicant once used calcium phosphate as the basic material to prepare composite pigments coated with nano oxides. Although the performance is good, it still cannot replace the toxic zinc chrome yellow in some special antirust coatings.

Method used

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  • Nano oxide wrapped mica iron oxide anti-rust pigment and preparation method thereof
  • Nano oxide wrapped mica iron oxide anti-rust pigment and preparation method thereof
  • Nano oxide wrapped mica iron oxide anti-rust pigment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] 1: Weigh 100g of 400 mesh mica iron oxide red, add 200g of water, and stir evenly;

[0056] 2: Dissolve 4.9g of titanyl sulfate in 50ml of water;

[0057] 3: Slowly drop the titanyl sulfate solution into the reactor containing mica iron oxide under stirring;

[0058] 4: Add 1.4g of calcium oxide after stirring continuously for 1 hour;

[0059] 5: Continue stirring for 30 minutes, filter, and dry at 100°C to obtain a red mica iron oxide antirust pigment coated with nano-titanium dioxide.

Embodiment 2

[0061] 1: Weigh 100g of 400 mesh mica iron oxide red, add 200ml of water and stir evenly;

[0062] 2: Dissolve 7g of zinc sulfate in 50ml of water;

[0063] 3: Slowly drop the zinc sulfate solution into the reactor containing micaceous iron oxide under stirring;

[0064] 4: Add 1.85g of calcium hydroxide after stirring continuously for 1 hour;

[0065] 5: Continue stirring for 30 minutes, filter, and dry at 100°C to obtain a red mica iron oxide antirust pigment coated with nano-zinc oxide.

Embodiment 3

[0067] 1: Weigh 100g of 400 mesh mica iron oxide ash, add 200ml of water and stir evenly;

[0068] 2: Dissolve 7g of zinc sulfate in 50ml of water;

[0069] 3: Slowly drop the zinc sulfate solution into the reactor containing micaceous iron oxide under stirring;

[0070] 4: Add 1.85g of calcium oxide after stirring continuously for 1 hour;

[0071] 5: Continue to stir for 30 minutes, filter, and dry at 100°C to obtain a gray micaceous iron oxide antirust pigment coated with nano-zinc oxide.

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Abstract

The invention discloses a nano oxide wrapped mica iron oxide anti-rust pigment which is a composite anti-rust pigment formed by wrapping nano oxide on mica iron oxide. The weight ratio of the nano oxide to the mica iron oxide is (1-10):100; the preparation method comprises the following steps of: slowly adding a titanyl sulfate and / or zinc sulfate solution into a mica iron oxide solution, stirring and reacting, adding calcium hydroxide and / or calcium oxide into the reaction system while stirring, so as to generate nano titanium dioxide and / or nano-zinc oxide to be wrapped on the surface of the mica iron oxide; and filtering the reaction solution and drying the filter cake so as to obtain the nano oxide wrapped mica iron oxide anti-rust pigment. The invention provides a metal anti-rust pigment with excellent property, low cost and competitive advantages when being compared with similar products in China and other countries.

Description

technical field [0001] The invention relates to the technical field of metal antirust, in particular to an antirust pigment. Background technique [0002] The annual economic loss caused by metal corrosion in the world reaches 700 billion U.S. dollars, which is about 6 times the sum of natural disaster losses such as earthquakes, fires, and typhoons. Therefore, it is very important to vigorously develop excellent metal corrosion protection methods, and one of the most effective and commonly used methods to prevent metal corrosion is to apply anti-corrosion coatings on metal surfaces. In anti-corrosion coatings, anti-rust pigments play a key role, especially for emerging water-based anti-corrosion coatings. [0003] Previously, the overall level of development of my country's antirust pigments lagged behind that of western developed countries, and traditional antirust pigments such as red lead, chromate, iron-based pigments, and zinc phosphate were still the mainstays. Beca...

Claims

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Application Information

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IPC IPC(8): C09D5/08C09D1/00C09C1/24C09C3/06
Inventor 丁宇丁士文
Owner HEBEI UNIVERSITY
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