Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF0 Cites 12 Cited by
  • 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 serious pollution to the environment and endangering human health
In recent years, in terms of metal antirust, phytic acid has been used to replace chromic acid and phosphoric acid for metal surface treatment agents such as passivation and phosphating of metals and electroplating, and has achieved good results in practical applications. However, in antirust Few people in the rust pigment industry have noticed that phytic acid is used as a raw material to produce polymers of phytic acid zinc, aluminum, iron, calcium, barium and other compounds for high-efficiency anti-rust pigments

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rust-preventive pigment
  • Rust-preventive pigment

Examples

Experimental program
Comparison scheme
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.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D17/00C09D5/08
Inventor 赵奎山
Owner 赵奎山
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com