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Rust resisting pigment filler of dickite and preparation method thereof

An anti-rust pigment and dickite technology, applied in anti-corrosion coatings, fibrous fillers, inorganic pigment treatment and other directions, can solve the problems of decreased resistance to salt water and salt spray, low added value of products, poor anti-rust performance, etc. The economic and social benefits are good, the overall anti-corrosion performance is strengthened, and the production cost is low.

Inactive Publication Date: 2013-07-10
GUANGXI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. Most of them are used as fillers after dispersion, sand removal, classification, magnetic separation, iron removal, flotation, bleaching, and crushing. The market is unstable and the added value of the product is low.
[0008] 2. Although dickite has been developed as an anti-rust pigment, it has poor anti-rust performance and must be used in combination with other anti-rust pigments in low-grade paints. It can only replace 5% of the amount in iron red paints, and after replacement Salt water and salt spray resistance index dropped by one level
[0010] 4. Product composition, single variety, single use

Method used

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  • Rust resisting pigment filler of dickite and preparation method thereof
  • Rust resisting pigment filler of dickite and preparation method thereof
  • Rust resisting pigment filler of dickite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Formula (parts by mass): 100 parts of dickite powder, 30 parts of sericite powder, 15 parts of 78% phosphorous acid, 3 parts of 85% phosphoric acid and 71 parts of water.

[0038]Preparation method: Put the dickite powder into a rake-type stirring reactor, start the stirring device, then put the aqueous phosphorous acid solution prepared with water to a concentration of 20% into a spray storage tank with a nozzle, and evenly spray it into the stirred dickite powder After spraying, continue to stir for 20 minutes, take it out and put it in a crucible, acidify and react at room temperature, continue to react for 13 hours, and obtain acid-reacted stone powder for future use. In addition, put the sericite powder into the rake stirring reactor, start the stirring device, then put the phosphoric acid aqueous solution prepared with water into a 20% concentration into the spray storage tank with nozzles, and evenly spray it into the stirred sericite powder, and after spraying, ...

Embodiment 2

[0050] Formula (parts by mass): 100 parts of dickite powder, 20 parts of sericite powder, 10 parts of 78% phosphorous acid, 1 part of 85% phosphoric acid and 22 parts of water.

[0051] Preparation method: Put the dickite powder into a rake-type stirring reactor, start the stirring device, then put the phosphorous acid aqueous solution prepared with water into a concentration of 40% into a spray storage tank with a nozzle, and evenly spray it into the stirred dickite powder After spraying, continue to stir for 30 minutes, take it out and put it in a crucible, acidify and react at room temperature, continue to react for 11 hours, and obtain acid-reacted stone powder for future use. In addition, put the sericite powder into the rake stirring reactor, start the stirring device, then put the phosphoric acid aqueous solution prepared with water into a concentration of 40% into the spray storage tank with nozzles, and evenly spray it into the stirred sericite powder. Then continue t...

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PUM

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Abstract

The invention discloses a rust resisting pigment filler of dickite and a preparation method thereof. Dry or wet processed dickite powder and dry processed sericite powder are taken as raw materials, of which the mass ratio is 1:0.15-0.40; phosphorous acid and phosphoric acid are respectively taken as an activating agent; the mass proportioning ratio of the dickite powder and the phosphorous acid is 1:0.05-0.20; the mass ratio of the sericite powder and the phosphoric acid is 1:0.05-0.20; the mixture is infiltrated at room temperature, activated at low-middle temperature and kept at room temperature for 10-15h; and the activation temperature is 150-200 DEG C and the activation time is 2.0-3.0h. Therefore, powder of the rust resisting pigment filler of dickite is prepared and combines the properties of both rust resisting pigment and filler, so that the rust resistance of fillers of dickite and other hydrous alumino silicate minerals is improved. The method is simple in process flow andeasy to operate, and can obtain stratiform products of different compositions. The product has fine crystallinity. The rust resisting pigment filler is separately used in an antirust coating with theadding amount of the filter increased from 15% to 30%, thereby decreasing the production cost of coatings and having preferable economic and social benefits.

Description

technical field [0001] The invention relates to a functional inorganic mineral anti-corrosion pigment filler processing technology which not only has the performance of a filler but also has the performance of an anti-corrosion pigment. Background technique [0002] In the paint industry, fillers are often overlooked because there are many types of fillers, and they are considered to be of low value and not worth studying. However, due to the different types of fillers, their properties vary greatly. With the development of the coatings industry, it is recognized that fillers have a great influence on the properties of most coatings. The use of functional and special inorganic fillers can improve the quality and grade of coating products. Fillers not only endow the coating with texture, compactness and cost reduction, but also increase the use effect of the pigment, change the rheology, dispersibility and stability of the coating, and improve the protective effect of the co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/12C09D5/08C09C1/40C09C3/06
Inventor 袁爱群马少妹廖安平
Owner GUANGXI UNIV FOR NATITIES