Rust-preventive pigment

A technology of anti-rust pigment and phytate, which is applied in the field of chemical pigments, can solve problems such as environmental pollution and harm to human health, and achieve the effects of good compatibility, low price and good storage stability

Inactive Publication Date: 2007-08-01
赵奎山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Toxic anti-rust pigments mainly include lead series and chromates, low-toxic or non-toxic anti-rust pigments, such as zinc molybdate, barium metaborate, zinc phosphate, calcium zinc phosphomolybdate, aluminum tripolyphosphate, calcium exchanged silica , ferrite and their modified products and combined products, etc., their antirust performance is similar to that of toxic antirust pigments. So far, there is no non-toxic antirust pigment that completely replaces traditional toxic antirust pigments, resulting in toxicity Anti-rust pigments have been used for a long time, causing s

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0013] Slowly add 50% zinc sulfate solution to more than 10% phytic acid aqueous solution, stir while adding, then adjust the pH to 5-6 with caustic alkali or ammonia water, continue stirring for 10 minutes to form zinc phytate, and let it stand for 30 minutes Minutes, solid-liquid separation, then co-deposition polymerization of zinc phytate and mica or mica iron oxide in a weight ratio of 1:1.5, and high-speed homogeneous emulsification to change the aggregate particle size structure to make it reach sub-nanometer (0.2- 2 μm), washed with water, dried, and ground to a particle size of 0.5-4 μm to obtain an antirust pigment containing zinc phytate and mica or micaceous iron oxide.

Embodiment 2

[0015] Slowly add about 30% aluminum sulfate solution to 10% or more phytic acid aqueous solution, stir while adding, then adjust the pH to 3.5-4.0 with caustic soda or ammonia water, continue stirring for 16 minutes to form aluminum phytate, let stand After 35 minutes, carry out solid-liquid separation, then carry out co-deposition polymerization of aluminum phytate and mica or mica iron oxide at a weight ratio of 1:6, and change the aggregate particle size structure through high-speed homogeneous emulsification to make it reach sub-nanometer (0.2 -2 μm), washed with water, dried, and ground to a particle size of 0.5-4 μm to obtain an antirust pigment containing aluminum phytate and mica or micaceous iron oxide.

Embodiment 3

[0017] Slowly add 10-30% ferric chloride solution to more than 10% phytic acid aqueous solution, stir while adding, then adjust PH=5 with caustic alkali or ammonia water, continue stirring for 10 minutes, and generate ferric phytate, static Set aside for 15 minutes, carry out solid-liquid separation, and then co-deposit and polymerize ferric phytate and mica or mica iron oxide at a weight ratio of 1:1, and change the aggregate particle size structure through high-speed homogeneous emulsification to make it reach sub-nanometer ( 0.2-2 μm), washed with water, dried, and ground to a particle size of 0.5-4 μm to obtain an antirust pigment containing ferric phytate and mica or micaceous iron oxide.

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PUM

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Abstract

The invention belongs to chemical paint technolgy, and relates to a rust-preventive pigment. It comprises phytate and mica or mica ferric oxide or ferro-phosphorus powder packing material, and the weight ratio between them is 1: 1- 9. It is prepared through deposition and polymerization with mentioned raw materials. The rust-preventive pigment only contains phytic acid and non- toxic packing material, no lead, chromium, cadmium and arsenic, so the rigidity, flexibility and adhesive force are dramatically increased, and can be modified with other pigment, packing material and resin.

Description

technical field [0001] The invention belongs to the technical field of chemical pigments, in particular to an antirust pigment. Background technique [0002] The coatings used to prevent metal corrosion are called anti-corrosion coatings, and the main anti-corrosion effect is anti-rust pigments. At present, anti-rust pigments are divided into toxic anti-rust pigments, low-toxic anti-rust pigments or non-toxic anti-rust pigments. Toxic anti-rust pigments mainly include lead series and chromates, low-toxic or non-toxic anti-rust pigments, such as zinc molybdate, barium metaborate, zinc phosphate, calcium zinc phosphomolybdate, aluminum tripolyphosphate, calcium exchanged silica , ferrite and their modified products and combined products, etc., their antirust performance is similar to that of toxic antirust pigments. So far, there is no non-toxic antirust pigment that completely replaces traditional toxic antirust pigments, resulting in toxicity Anti-rust pigments have been u...

Claims

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Application Information

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IPC IPC(8): C09D17/00C09D5/08
Inventor 赵奎山
Owner 赵奎山
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