Composite chromium-free corrosion inhibition passivator as well as preparation and application thereof

A passivating agent and composite technology, applied in the coating process of metal materials, etc., can solve the problems of short protection period, poor corrosion resistance, weak adhesion of passivation layer, etc., and achieve comprehensive quality improvement, prolong protection period, effective Facilitate the effect of adhesion

Inactive Publication Date: 2020-04-28
安徽禹锋数据科技有限公司
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The existing technology has made a lot of improvement research on the environment-friendly and chrome-free application of passivators, but the passivation layer still has problems such as weak adhesion, short effective protection period, poor corrosion resistance, etc., and further formulation and process improvement are needed

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
  • Composite chromium-free corrosion inhibition passivator as well as preparation and application thereof
  • Composite chromium-free corrosion inhibition passivator as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A composite chromium-free corrosion inhibitor and passivation agent, consisting of agent A and agent B with a mass ratio of 1:2.5, wherein agent A includes humic acid, barium metaborate, magnesium nitride, hydrogenated polydimethylsiloxane, Styrene-acrylic emulsion; agent B includes phosphate, nano-scale ore powder, plant slurry, bis(dicarbonyl cyclopentadienyl iron), silane coupling agent, water-based silicone resin, and deionized water.

[0030]The mass percentage content of each component in agent A is: humic acid 20%, barium metaborate 8%, magnesium nitride 8%, hydrogenated polydimethylsiloxane 6%, styrene-acrylic emulsion balance; The preparation steps are as follows: grind humic acid at 25-30°C under a nitrogen / ammonia atmosphere, then add barium metaborate and magnesium nitride into it alternately in 2 equal parts, and keep grinding for 3 hours to obtain a mixture; The styrene-acrylic emulsion is preheated and stirred at 35±5°C for 20 minutes, then hydrogenated p...

Embodiment 2

[0036] A composite chromium-free corrosion inhibitor and passivation agent, consisting of agent A and agent B with a mass ratio of 1:2.5, wherein agent A includes humic acid, barium metaborate, magnesium nitride, hydrogenated polydimethylsiloxane, Styrene-acrylic emulsion; agent B includes phosphate, nano-scale ore powder, plant slurry, bis(dicarbonyl cyclopentadienyl iron), silane coupling agent, water-based silicone resin, and deionized water.

[0037] The mass percentage content of each component in agent A is: humic acid 30%, barium metaborate 10%, magnesium nitride 10%, hydrogenated polydimethylsiloxane 8%, styrene-acrylic emulsion balance; The preparation steps are as follows: grind humic acid at 25-30°C under a nitrogen / ammonia atmosphere, then add barium metaborate and magnesium nitride into it alternately in 2 equal parts, and keep grinding for 4 hours to obtain a mixture; The styrene-acrylic emulsion is preheated and stirred at 35±5°C for 30 minutes, then hydrogenate...

Embodiment 3

[0043] A composite chromium-free corrosion inhibitor and passivation agent, consisting of agent A and agent B with a mass ratio of 1:2.5, wherein agent A includes humic acid, barium metaborate, magnesium nitride, hydrogenated polydimethylsiloxane, Styrene-acrylic emulsion; agent B includes phosphate, nano-scale ore powder, plant slurry, bis(dicarbonyl cyclopentadienyl iron), silane coupling agent, water-based silicone resin, and deionized water.

[0044] The mass percentage content of each component in agent A is: humic acid 15%, barium metaborate 5%, magnesium nitride 10%, hydrogenated polydimethylsiloxane 6%, styrene-acrylic emulsion balance; The preparation steps are as follows: grind humic acid at 25-30°C under a nitrogen / ammonia atmosphere, then add barium metaborate and magnesium nitride into it alternately in 3 equal parts, and keep grinding for 4 hours to obtain a mixture; The styrene-acrylic emulsion is preheated and stirred at 35±5°C for 20 minutes, then hydrogenated...

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 provides a composite chromium-free corrosion inhibition passivator as well as preparation and application thereof. The passivator is composed of an agent A and an agent B in a mass ratioof 1 : 2.5-2.8, wherein the agent A comprises humic acid, barium metaborate, magnesium nitride, hydrogenated polydimethylsiloxane and styrene-acrylic emulsion; the agent B comprises phosphate, nanoscale mineral powder, plant slurry, bis (dicarbonyl cyclopentadiene iron), a silane coupling agent, waterborne silicon resin and deionized water. According to the composite chromium-free corrosion inhibition passivator as well as the preparation and application thereof, the self-made agent A and the self-made agent B are compounded, the synergistic effect of the components is remarkably improved through reasonable raw material selection and treatment, safety and high efficiency are achieved, the prepared passivator is stable in film layer and high in binding force, the passivator has good corrosion-resistant protection effects on chemical reagent, acid-base environment and various heavy metal pollutions, the overall wear resistance is obviously improved, the comprehensive quality is obviously improved, the protection period is effectively prolonged, and the passivator is worthy of popularization and application.

Description

technical field [0001] The invention relates to the technical field of passivators, in particular to a composite chromium-free corrosion inhibitor passivator and its preparation and application. Background technique [0002] Passivating agents generally have the ability to form coatings or films on metal surfaces. After the metal surface is pickled, it needs to be neutralized and washed with water to remove the residual acid, and then passivated to prevent the surface of the metal from being corroded and rusted after cleaning. Passivation is generally carried out after cleaning. [0003] Chromate passivation technology has been used as the main passivation technology for steel and alloys for a long period of time due to its excellent self-repairing effect of passivation film, wide range of applications, and cost advantages. However, the chromate passivator contains hexavalent chromium or trivalent chromium, which are highly toxic substances, carcinogenic, and seriously affe...

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): C23C22/07
CPCC23C22/07C23C2222/20
Inventor 刘俊
Owner 安徽禹锋数据科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap