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Modified aluminium trippolyhosphate anticorrosive paint with high efficiency

A technology of aluminum tripolyphosphate and anti-rust pigments, which is applied in the direction of anti-corrosion coatings, inorganic pigment treatment, fibrous fillers, etc., can solve the problems of inability to use anti-rust pigments, damage the storage stability of coatings, etc., and achieve the effect of improving anti-corrosion performance

Inactive Publication Date: 2011-10-26
贵阳神迪科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is a solid acid itself. Due to acidity, water solubility and other factors, it will destroy the storage stability of the paint when it is used alone as a pigment, so it cannot be used directly as an antirust pigment.

Method used

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  • Modified aluminium trippolyhosphate anticorrosive paint with high efficiency

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Add 50.0kg of deionized water into the kettle, and add 58.0kg of aluminum tripolyphosphate under high-speed stirring (1200rpm / min), so that the aluminum tripolyphosphate is evenly dispersed in the water.

[0022] (2) Raise the temperature to 50-60°C, add 0.4 kg of ammonium molybdate and 0.8 kg of zinc molybdate under high-speed stirring, and disperse for 35 minutes.

[0023] (3) Keeping the temperature constant, add 36.4 kg of calcium metasilicate in sequence under high-speed stirring, and disperse and react for 20 minutes.

[0024] (4) Keep the temperature constant, add 3.8 kg of calcium oxide under high-speed stirring, and adjust the pH value to 6.5.

[0025] (5) Raise the temperature to 80-90°C, add 0.6 kg of γ-aminopropyltriethoxysilane, and stop the reaction after 50 minutes.

[0026] (6) Filter, dry, pulverize and sieve the modified material to obtain the finished product.

Embodiment 2

[0028] (1) Add 55.0kg of deionized water to the kettle, and add 60.0kg of aluminum tripolyphosphate under high-speed stirring (1400r / min), so that the aluminum tripolyphosphate is evenly dispersed in the water.

[0029] (2) Raise the temperature to 50-60°C, add 2.2 kg of zinc molybdate and 0.8 kg of calcium molybdate under high-speed stirring, and disperse for 40 minutes.

[0030] (3) Keeping the temperature constant, add 20.0 kg of calcium metasilicate, 6.4 kg of barium sulfate, and 5.0 kg of calcium carbonate in sequence under high-speed stirring, and disperse for 30 minutes.

[0031] (4) Keep the temperature constant, add 3.0 kg of zinc oxide and 1.8 kg of calcium hydroxide under high-speed stirring, and adjust the pH value to 6.2.

[0032] (5) Raise the temperature to 80-90° C., add 0.8 kg of bis(dioctyloxypyrophosphate) ethylene titanate, and stop the reaction after 50 minutes.

[0033] (6) Filter, dry, pulverize and sieve the modified material to obtain the finished pro...

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PUM

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Abstract

The invention relates to a modified aluminium trippolyhosphate anticorrosive paint with high efficiency, in particular to an environmental modified aluminium trippolyhosphate anticorrosive paint with excellent corrosion resistance. The modified aluminium trippolyhosphate anticorrosive paint comprises the following ingredients: 55.0-65.0 weight portions of aluminium trippolyhosphate, 1.0-3.5 weight portions of molybdate substances, 35.0-40.0 weight portions of PH conditioning agent and 0.2-1.0 weight portions of surface modification auxiliary agent. According to the invention, molybdate substances are used for modifying aluminium trippolyhosphate, the prepared modified aluminium trippolyhosphate anticorrosive paint has excellent corrosion resistance, is a ideal substitute of the traditional redlead anticorrosive paint.

Description

technical field [0001] The invention relates to a modified aluminum tripolyphosphate high-efficiency antirust pigment, in particular to a modified aluminum tripolyphosphate antirust pigment with excellent anticorrosion performance and environmental protection. Background technique [0002] Aluminum tripolyphosphate is used to replace the traditional anti-rust pigment red lead (containing heavy metal elements such as lead and chromium) in coatings, and has excellent anti-rust ability. However, it is a solid acid itself. Due to factors such as acidity and water solubility, it will destroy the storage stability of the paint when it is used alone as a pigment, so it cannot be used directly as an antirust pigment. Therefore, aluminum tripolyphosphate must be modified before it can be used as an antirust pigment. [0003] Only by changing some physical and chemical properties of aluminum tripolyphosphate through the chemical reaction between the modified substance and aluminum tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12C09D5/08C09C1/40C09C3/06C09C3/12C09C3/08
Inventor 张建新杨远松刘应科
Owner 贵阳神迪科技有限公司
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