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

Preparation method and application of intelligent anti-corrosion coating capable of being automatically repaired

An anti-corrosion coating and automatic repair technology, applied in anti-corrosion coatings, coatings, epoxy coatings, etc., can solve the problems of easily damaged coating integrity, anti-corrosion coating nanoparticles and large amounts of corrosion inhibitors, etc. Effective protection, corrosion inhibition, uniform dispersion effect

Active Publication Date: 2015-09-23
JIANGSU GUGELANSHAN PROTECTIVE FACILITIES CO LTD +2
View PDF1 Cites 39 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then, the amount of nanoparticles and corrosion inhibitors consumed by the anti-corrosion coating prepared above is relatively large, which easily destroys the integrity of the coating

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
  • Preparation method and application of intelligent anti-corrosion coating capable of being automatically repaired
  • Preparation method and application of intelligent anti-corrosion coating capable of being automatically repaired
  • Preparation method and application of intelligent anti-corrosion coating capable of being automatically repaired

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Step 1, preparing silica mesoporous microspheres (MSNs).

[0030] 1. Mix 1.0g of cetyltrimethylammonium bromide (CTAB), 3.5mL of 2mol / L sodium hydroxide (NaOH) solution with 480mL of water, and heat to 80 under mechanical stirring (500 rpm). °C, condense and reflux for 1 hour to fully activate cetyltrimethylammonium bromide;

[0031] 2. Add 5.0mL tetraethyl orthosilicate (TEOS) dropwise to the mixture in step 1, and under vigorous stirring, a white solid will form within 10 minutes. After reacting at 80°C for 2 hours, filter while hot, and dissolve with water and methanol The product was fully washed and dried under vacuum at 70°C to obtain a solid;

[0032] 3. Weigh 1.0g dry solid, ultrasonically disperse it in a mixed solution of 150mL methanol and 10mL concentrated hydrochloric acid, reflux at 65°C for 6h, centrifuge, wash thoroughly with water and methanol, and dry in vacuum at 70°C to obtain silica mesoporous microspheres (MSNs).

[0033] Step 2, adsorbing L-his...

Embodiment 2

[0041] Step 1, preparing silica mesoporous microspheres (MSNs).

[0042] 1. Mix 1.0g of cetyltrimethylammonium bromide (CTAB), 3.5mL of 2mol / L sodium hydroxide (NaOH) solution with 480mL of water, and heat to 90 under mechanical stirring (500 rpm). ℃, reflux for 1.5 hours to fully activate cetyltrimethylammonium bromide;

[0043] 2. Add 5.0mL tetraethyl orthosilicate (TEOS) dropwise to the mixture in step 1, and under vigorous stirring, a white solid will form within 10 minutes. After reacting at 90°C for 2.5 hours, filter while hot, and dissolve with water and methanol The product was fully washed, and dried under vacuum at 70°C to obtain a solid;

[0044] 3. Weigh 1.0g dry solid, ultrasonically disperse it in a mixed solution of 100mL methanol and 10mL concentrated hydrochloric acid, reflux at 70°C for 4h, centrifuge, wash thoroughly with water and methanol, and dry in vacuum at 70°C to obtain silica mesoporous microspheres (MSNs).

[0045] Step 2, adsorbing L-histidine i...

Embodiment 3

[0053] Step 1, preparing silica mesoporous microspheres (MSNs).

[0054] 1. Mix 1.0g cetyltrimethylammonium bromide (CTAB), 3.5mL 2mol / L sodium hydroxide (NaOH) solution with 480mL water, heat to 84 ℃, reflux for 1.5 hours to fully activate cetyltrimethylammonium bromide;

[0055] 2. Add 5.0mL tetraethyl orthosilicate (TEOS) dropwise to the mixture in step 1. Under vigorous stirring, a white solid will form within 10 minutes. After reacting at 89°C for 2.5 hours, filter it while it is hot, and dissolve it with water and methanol. The product was fully washed and dried under vacuum at 70°C to obtain a solid;

[0056] 3. Weigh 1.0g dry solid, ultrasonically disperse it in a mixed solution of 100mL methanol and 10mL concentrated hydrochloric acid, reflux at 70°C for 4h, centrifuge, wash thoroughly with water and methanol, and dry in vacuum at 68°C to obtain silica mesoporous microspheres (MSNs).

[0057] Step 2, adsorbing L-histidine in the silica mesoporous microspheres as a ...

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 preparation method and application of an intelligent anti-corrosion coating capable of being automatically repaired, and belongs to the field of metal corrosion prevention. The method comprises: firstly, preparing silicon dioxide mesoporous microspheres as nano containers; secondly, adsorbing L-histidine as a corrosion inhibitor into the silicon dioxide mesoporous microspheres; and finally, doping the silicon dioxide mesoporous microspheres adsorbing the inhibitor L-histidine into a mixture of epoxy resin and an epoxy curing agent, and coating a metal surface with the mixture to form an anti-corrosion coating. Stimulated by external acid or alkali, the corrosion inhibitor, namely L-histidine molecules, is quickly released from the silicon dioxide mesoporous microspheres and enters the coating, thereby effectively inhibiting corrosion. The silicon oxide mesoporous microspheres are used as the nano containers to pack the corrosion inhibitor, and are then added to the coating; in this way, the problem of compatibility of the corrosion inhibitor and the coating is solved, and uniform dispersion of the corrosion inhibitor in the coating is realized. The invention further discloses application of the anti-corrosion coating, prepared by using the method, in guardrails.

Description

technical field [0001] The invention relates to a preparation method of an anti-corrosion coating, in particular to a preparation method and application of an automatically repairable intelligent anti-corrosion coating, belonging to the field of metal corrosion protection. Background technique [0002] The direct economic loss caused by metal corrosion in the world is about 700 billion US dollars every year, and the loss caused by metal corrosion in my country accounts for 5% of the gross national product (GNP). The American Society of Corrosion Engineers survey and analysis report in 2009 pointed out that the annual direct economic loss caused by corrosion accounts for about 4.27% of the gross domestic product (GDP). Corrosion of metal materials pervades all fields of the national economy, not only causing a huge waste of resources, but also causing a series of social problems such as environmental pollution. Coating metal materials with anti-corrosion coating has the adv...

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): C09D163/00C09D5/08
Inventor 傅佳骏朱发海王明东徐鹏
Owner JIANGSU GUGELANSHAN PROTECTIVE FACILITIES CO LTD
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