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

PH response type degradable intelligent corrosion inhibitor, preparing method and application of PH response type degradable intelligent corrosion inhibitor

A corrosion inhibitor and intelligent technology, which is applied in the field of pH-responsive degradable intelligent corrosion inhibitors, achieves the effects of good biocompatibility, simple response process, and promotion of decomposition products

Active Publication Date: 2020-04-28
DONGYING SPRING PETROLEUM ENG TECH +1
View PDF13 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned existing technologies have made some progress in pH-responsive nanocontainers, but their corrosion inhibitor loading capacity needs to be further improved

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
  • PH response type degradable intelligent corrosion inhibitor, preparing method and application of PH response type degradable intelligent corrosion inhibitor
  • PH response type degradable intelligent corrosion inhibitor, preparing method and application of PH response type degradable intelligent corrosion inhibitor
  • PH response type degradable intelligent corrosion inhibitor, preparing method and application of PH response type degradable intelligent corrosion inhibitor

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The preparation method of the pH-responsive degradable intelligent corrosion inhibitor of the present invention, the specific steps are as follows:

[0037] Step 1. Add 2.0-2.68g of terephthalaldehyde and 10-15mL of absolute ethanol into a 100mL three-neck flask, vacuumize and feed nitrogen to maintain a nitrogen atmosphere. Perform magnetic stirring, heat the oil bath to 75-80°C, add 0.8-1.0mL aminopropyltriethoxysilane; condense and reflux for two hours, add an appropriate amount of anhydrous sodium sulfate under stirring conditions, quickly filter and evaporate under low pressure The imino bridged silane precursor was collected.

[0038] Step 2. Mix 0.20-0.3g CTAB, 100mL deionized water and 0.70-1.0mL 2.0-3.0mol / L NaOH solution at 70°C for 1 hour, raise the temperature to 80°C, and mix 0.51-0.931g ethyl orthosilicate and 0.3-1.36 g of the imino-bridged silane precursor is mixed and added dropwise to the solution, and the dropwise addition is completed within 4 minut...

Embodiment 1

[0044] Step 1. Add 2.36g of terephthalaldehyde and 10mL of absolute ethanol into a 100mL three-necked flask, vacuumize and inject nitrogen to maintain a nitrogen atmosphere. Perform magnetic stirring, heat the oil bath to 75°C, add 0.9mL aminopropyl triethoxysilane; condense and reflux for two hours, add an appropriate amount of anhydrous sodium sulfate under stirring conditions, quickly filter and evaporate to collect under low pressure to obtain imine group bridged silane precursor;

[0045] Step 2. Mix 0.23g CTAB, 100mL deionized water and 0.7mL 2.1mol / L NaOH solution at 70°C for 1 hour, raise the temperature to 80°C, and add 0.51g tetraethyl orthosilicate and 0.3g imino bridged silane The precursors were mixed and added dropwise to the solution, and the dropwise addition was completed within 4 minutes, stirred and reacted for 4 hours, washed and dried, and the white product was collected;

[0046] Step 3, add 5.5g / L NH to the white product 4 NO 3 / ethanol solution was ...

Embodiment 2

[0052] Step 1. Add 2.50g of terephthalaldehyde and 11mL of absolute ethanol into a 100mL three-neck flask, vacuumize and inject nitrogen to maintain a nitrogen atmosphere. Perform magnetic stirring, heat the oil bath to 80°C, add 1mL of aminopropyltriethoxysilane; condense and reflux for two hours, add an appropriate amount of anhydrous sodium sulfate under stirring conditions, quickly filter and evaporate to collect under low pressure to obtain the imine group Bridged silane precursors;

[0053] Step 2. Mix 0.23g CTAB, 100mL deionized water and 0.7mL 2.2mol / L NaOH solution at 70°C for 1 hour, raise the temperature to 80°C, and add 0.80g tetraethyl orthosilicate and 0.39g imino bridged silane After the precursors were mixed, they were added dropwise to the solution, and the dropwise addition was completed within 4 minutes. After stirring for 4 hours, the mixture was washed and dried, and the white product was collected.

[0054] Step 3, add 5.5g / L NH to the white product 4 N...

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 PH response type degradable intelligent corrosion inhibitor, a preparing method and application of the PH response type degradable intelligent corrosion inhibitor, and belongs to the technical field of metal material corrosion preventing. The preparing method of the PH response type degradable intelligent corrosion inhibitor comprises the steps that terephthalaldehyde andaminopropyltriethoxysilane are utilized for preparing an imidogen bridging silane precursor, and evaporation is conducted after filtering and pressure control; the imidogen bridging silane precursorand ethyl orthosilicate serve as a silicon source and are slowly dripped in cetyl trimethyl ammonium bromide and NaOH mixing system to be reacted, the cetyl trimethyl ammonium bromide serves as a template to prepare organic silicon nanospheres; a surface active agent is removed, and mesoporous organic silicon nanospheres are obtained; adsorption molecules MBT are dissolved in ethyl alcohol, and asaturated MBT ethyl alcohol mixed solution is obtained, then, the saturated MBT ethyl alcohol mixed solution is injected into a reactor containing the pre-degassed mesoporous organic silicon nanospheres, and the PH response type degradable intelligent corrosion inhibitor is obtained through the reaction. The preparing method is simple and easy to implement, and meanwhile a new thought is providedfor oil field intelligent corrosion preventing.

Description

technical field [0001] The invention relates to the technical field of anticorrosion of metal materials, in particular to a pH-responsive degradable intelligent corrosion inhibitor. Background technique [0002] In recent years, the self-healing effect of adding loaded nanocontainers has opened up a new way for long-term corrosion protection of various metal materials. The development of novel materials for controlling the release of target active substances has a major impact on many fields, from oil pipelines to From corrosion and protection to the targeting of pharmaceutical preparations, and then to aerospace corrosion and protection, nanocontainers can carry active substances with targeting effects, and achieve protection through controlled release. Compared with the direct addition of corrosion inhibitors, the addition of smart nano-containers reduces the pressure on the environment and has a longer anti-corrosion time. Therefore, the research on smart nano-containers ...

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): C23F11/16C23F11/04
CPCC23F11/04C23F11/165
Inventor 孙志强贾犇孙永强孙霜青韩庆建胡松青赵孙新元
Owner DONGYING SPRING PETROLEUM ENG TECH
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