Controllable release halloysite supported molybdate and benzotriazole composite corrosion inhibitor and preparation method thereof

A technology of benzotriazole and composite corrosion inhibitor, which is applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of weakening the protective effect of coatings and poor dispersion of corrosion inhibitors, and achieve good corrosion inhibition effects

Inactive Publication Date: 2019-12-24
TIANJIN UNIV
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the solubility is too low, the dispersibility of the corrosion inhibitor in the coating is poor; while the solubility is too high, these corrosion inhibitors will be discharged from the coating quickly, leaving voids and holes on the surface of the coating, which will also Weaken the protective effect of the coating (Abdullayev E, Price R, Shchukin D, Lvov Y, Halloysite tubes as nanocontainers for anticorrosion coating with Benzotriazole[J], ACS Applied Materials and Interfaces,2009,1:1437-1443)

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
  • Controllable release halloysite supported molybdate and benzotriazole composite corrosion inhibitor and preparation method thereof
  • Controllable release halloysite supported molybdate and benzotriazole composite corrosion inhibitor and preparation method thereof
  • Controllable release halloysite supported molybdate and benzotriazole composite corrosion inhibitor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Na 2 MoO 4 2H 2 O (10.0 g) was dissolved in 100 ml of deionized water, and then 4 g of HNTs was added thereto to form a suspension, called A suspension.

[0030] (2) Dissolve BTA (2g) in 100ml alcohol, called B solution.

[0031] (3) Transfer the suspension A to a 100ml beaker, then place the beaker in a vacuum tank, and use a vacuum pump to evacuate to 1.325E3Pa, and maintain this pressure for 60min, then put the system back under normal pressure 60min is called the completion of a loading process.

[0032] (4) Repeat the above cycle process, and redisperse the samples after two loadings in solution B to complete the third loading.

[0033] (5) Centrifuge and wash the sample loaded three times, then redisperse it into 0.08mol / L copper sulfate solution and stir for 1min, finally centrifuge, wash, dry at 60°C for 24h, and then grind to obtain HNTs Composite corrosion inhibitor material loaded with molybdate and benzotriazole.

Embodiment 2

[0035] (1) Na 2 MoO 4 2H 2 O (5.0 g) was dissolved in 100 ml of deionized water, and then 2 g of HNTs was added thereto to form a suspension, called A suspension.

[0036] (2) Dissolve BTA (1g) in 100ml of alcohol, called B solution.

[0037] (3) Transfer the suspension A to a 100ml beaker, then place the beaker in a vacuum tank, and use a vacuum pump to evacuate to 1.325E3Pa, and maintain this pressure for 30min, then put the system back under normal pressure 90min is called the completion of a loading process.

[0038] (4) Repeat the above cycle process, and redisperse the samples after two loadings in solution B to complete the third loading.

[0039] (5) Centrifuge and wash the sample after 6 times of loading, redisperse it into 0.01mol / L copper sulfate solution and stir for 10min, finally centrifuge, wash, dry at 90°C for 24h, and then grind to obtain HNTs Composite corrosion inhibitor material loaded with molybdate and benzotriazole.

Embodiment 3

[0041] 1) Na 2 MoO 4 2H 2 O (15.0 g) was dissolved in 100 ml of deionized water, and then 8 g of HNTs was added thereto to form a suspension, called A suspension.

[0042] (2) Dissolve BTA (4g) in 100ml alcohol, called B solution.

[0043] (3) Transfer suspension A to a 100ml beaker, then place the beaker in a vacuum tank, and use a vacuum pump to evacuate to 1.325E3Pa, and maintain this pressure for 120min, then put the system back under normal pressure 120min is called completing a loading process.

[0044] (4) Repeat the above cycle process, and redisperse the samples after two loadings in solution B to complete the third loading.

[0045] (5) Centrifuge and wash the sample after 5 times of loading, redisperse it into 0.20mol / L copper sulfate solution and stir for 5min, finally centrifuge, wash, dry at 40°C for 24h, and then grind to obtain HNTs Composite corrosion inhibitor material loaded with molybdate and benzotriazole.

[0046] figure 1 are HNTs, Na 2 MoO 4 -H...

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 controllable release halloysite supported molybdate and benzotriazole composite corrosion inhibitor and a preparation method thereof. According to the nano container effect of halloysite and the synergistic effect of MoO4<2-> and BTA; molybdate and BTA are supported into halloysite in sequence through a negative pressure method; meanwhile, an insoluble Cu-BTA compound isformed at the port of the HNTs by utilizing the interaction of BTA and Cu ions at the pipe orifice to slow down the release speed of MoO4 <2-> and BTA in the pipe, so that the corrosion resistance ofthe marine anticorrosive paint is improved and the service life of the marine anticorrosive paint is prolonged through the controlled release and composite corrosion inhibition behaviors of the corrosion inhibitor.

Description

technical field [0001] The invention belongs to the technical field of corrosion inhibitors, and relates to a corrosion inhibitor for marine anticorrosion coatings and a preparation method thereof, in particular to a composite corrosion inhibitor loaded with halloysite molybdate and benzotriazole and a preparation method thereof . Background technique [0002] Seawater is the largest amount of electrolyte solution in nature. It contains almost all the compounds of elements on the earth, various microorganisms and organic matter, etc. The composition is very complex, so the marine environment is a very harsh and corrosive environment. Marine corrosion will cause the strength reduction or localized corrosion of ship materials and marine equipment materials, seriously damage the integrity of materials, significantly shorten the service life of equipment materials, and sometimes even cause serious disasters (Zahidah KA, Kakooei S, Ismail MC, Raja PB, Halloysite nanotubes as nan...

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): C09D5/08
CPCC09D5/084C09D5/086
Inventor 王吉会邢旭腾
Owner TIANJIN UNIV
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