Unlock instant, AI-driven research and patent intelligence for your innovation.

Fluorine-containing self-lubrication environment-friendly silane passivation film

A passivation film and self-lubricating technology, applied in the coating process of metal materials, etc., can solve problems such as poisoning, achieve high heat resistance, improve extreme pressure wear, and high bonding strength

Inactive Publication Date: 2017-05-10
张庆
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chromium-free passivation solution provided by the author can fundamentally solve the problem of toxic and harmful chromium ions poisoning people in the existing passivation solution, and can also truly replace the chromium-containing passivation solution to realize the conversion of electro-galvanized wide-band steel sheets. However, the plating film formed by this chromium-free passivation solution still cannot meet the market demand in terms of low friction, anti-oxidation, corrosion resistance, self-lubrication, wear resistance, etc., and further modification is needed to improve the application field and expand the application prospect

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] A fluorine-containing self-lubricating and environmentally friendly silane passivation film, prepared from the following raw materials in parts by weight (kg): dodecafluoroheptyl methacrylate 4, hexafluorobutyl methacrylate 5.2, silane coupling agent KH560 16 , Azobisisobutyronitrile 0.2, silane coupling agent KH570 90, silane coupling agent KH858 appropriate amount, tetraethyl orthosilicate 7.8, trifluoropropyl methoxy silicon 5.4, water-based polyurethane emulsion 30, sodium molybdate 40, Titanyl sulfate 13, sodium vanadate 13, appropriate amount of citric acid, appropriate amount of hydrochloric acid, appropriate amount of ammonia water, appropriate amount of absolute ethanol, appropriate amount of dilute nitric acid, appropriate amount of tetrahydrofuran, and appropriate amount of deionized water.

[0015] The fluorine-containing self-lubricating and environmentally friendly passivation film is prepared by the following specific steps:

[0016] (1) Mix and stir ethy...

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 discloses a fluorine-containing self-lubrication environment-friendly silane passivation film. The fluorine-coating self-lubrication environment-friendly silane passivation film is prepared by following raw materials including dodecafluoroheptyl methacrylate, hexafluorobutyl methacrylate, a silane coupling agent KH560, azodiisobutyronitrile, a silane coupling agent KH570, a proper number of silane coupling agents KH858, tetraethoxysilane, 3,3-trifluoropropyl group methoxy silicon, waterborne polyurethane emulsion, sodium molybdate, titanyl sulfate, sodium vanadate, a proper amount of citric acid, a proper amount of hydrochloric acid, a proper amount ammonium hydroxide, a proper amount of absolute ethyl alcohol, a proper amount of dilute nitric acid, a proper amount of tetrahydrofuran and a proper amount of deionized water. The provided passivation liquid preparing method is simple, the raw material source is wide, the film forming performance is good, good functions of self-lubrication, corrosion resistance, heat resistance and base material protection are achieved, and safety and environment friendliness are achieved.

Description

technical field [0001] The invention relates to the technical field of chromium-free passivation, in particular to a fluorine-containing self-lubricating and environment-friendly silane passivation film. Background technique [0002] Galvanized wide-band steel plate refers to a steel plate coated with a layer of zinc on the surface. Galvanizing is to prevent corrosion on the surface of the steel plate and prolong the service life of the steel plate. Galvanized wide-band steel plate is becoming more and more closely related to people’s lives. Use color-coated panels and car benches. Because zinc is very active, it is easily corroded by acids, alkalis, oxygen, carbon dioxide and water vapor in the atmosphere, so it needs to be passivated. The traditional passivation method of galvanized sheet generally adopts passivation containing chromate. This method has the advantages of excellent film-forming performance, low cost and simple process, but the chromium ions contained in th...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/44
CPCC23C22/44C23C2222/20
Inventor 张庆
Owner 张庆