Preparation method of ion response type antibacterial and anticorrosive coating

An antibacterial anticorrosion and coating technology, which is applied in anticorrosion coatings, antifouling/underwater coatings, botanical equipment and methods, etc., can solve the problems of short antibacterial time limit, poor self-repair performance of antibacterial anticorrosion coatings, etc., and achieve broad application prospects Effect

Active Publication Date: 2021-10-29
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method of ion-responsive antibacterial and anticorrosion coatings, which solves the problems of poor self-repairing performance and short antibacterial aging of the antibacterial and anticorrosion coatings prepared in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Step 1, Preparation of Nanocontainers

[0026] With 0.5g cetyltrimethylammonium bromide (CTAB), 1.5ml, 2.0mol / L NaOH solution, 200mLH 2 O mixed and stirred for 20 minutes, and kept the temperature at 60°C to make a mixed solution; slowly added 2ml of tetraethyl orthosilicate (TEOS) dropwise to the mixed solution, and kept stirring to obtain a solid precipitate; filtered to separate the solid precipitate, and then water, Wash with ethanol, dry, weigh 0.5g of solid precipitate and add to the solution prepared by 120ml of isopropanol + 6ml of HCl, disperse evenly by ultrasonic treatment, and then reflux and condense at 80°C for 4h, and the obtained substances are sequentially washed with deionized water , ethanol, and dried under vacuum to obtain SiO that can be used to load antibacterial agents 2 nano container.

[0027] Step 2, Antimicrobial Loading

[0028] Dissolve 0.01g of antibacterial agent in 10ml of absolute ethanol, add 0.1g of nanocontainer, mix and stir, ult...

Embodiment 2

[0034] Step 1, Preparation of Nanocontainers

[0035] With 0.8g cetyltrimethylammonium bromide (CTAB), 2ml, 1.5mol / L NaOH solution, 220mLH 2 O mixed and stirred for 25 minutes, and kept the temperature at 70°C to make a mixed solution; slowly added 2.5ml tetraethyl orthosilicate (TEOS) dropwise to the mixed solution, and stirred continuously to obtain a solid precipitate; the solid precipitate was separated by filtration, followed by water , washed with ethanol, dried, weighed 0.5g of solid precipitate and added to the solution prepared by 120ml of isopropanol + 6ml of HCl, dispersed evenly by ultrasonic treatment, and then refluxed and condensed at 80°C for 4h, and the obtained substances were sequentially deionized Washed with water and ethanol, and dried under vacuum to obtain SiO that can be used to load antibacterial agents 2 nano container.

[0036] Step 2, Antimicrobial Loading

[0037] Dissolve 0.02g of antibacterial agent in 10ml of absolute ethanol, add 0.4g of na...

Embodiment 3

[0043] Step 1, Preparation of Nanocontainers

[0044] With 1.0g cetyltrimethylammonium bromide (CTAB), 2.5ml, 1.8mol / L NaOH solution, 230mLH 2 O mixed and stirred for 30min, and kept the temperature at 75°C to make a mixed solution; slowly added 3ml of tetraethyl orthosilicate (TEOS) dropwise to the mixed solution, and stirred continuously to obtain a solid precipitate; filtered to separate the solid precipitate, followed by water, Wash with ethanol, dry, weigh 0.5g of solid precipitate and add to the solution prepared by 120ml of isopropanol + 6ml of HCl, disperse evenly by ultrasonic treatment, and then reflux and condense at 80°C for 4h, and the obtained substances are sequentially washed with deionized water , ethanol cleaning, and drying under vacuum to obtain SiO that can be used to load antibacterial agents 2 nano container.

[0045] Step 2, Antimicrobial Loading

[0046] Dissolve 0.06g of antibacterial agent in 10ml of absolute ethanol, add 0.3g of nanocontainer, mi...

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PUM

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Abstract

The invention discloses a preparation method of an ion response type antibacterial and anticorrosive coating, which comprises the steps of firstly, preparing a SiO2 nano container through liquid phase mixing and reflux condensation, then mixing the nano material with an antibacterial agent, carrying out ultrasonic treatment to obtain a nano container loaded with the antibacterial agent, then packaging the nano container by adopting a FeIII-TA complex molecular film, finally, according to a basic method for preparing the coating, adding the functional filler into the matrix coating, then adding a coating additive, and stirring at a high speed to obtain the ion response type antibacterial and anticorrosive coating. The selected coating is a water-based coating, the antibacterial agent is triclosan (TCS), and the coating and the antibacterial agent have the characteristics of being green and environment-friendly and do not contain harmful components. In the using process, harm to the human body and the environment is avoided, and the coating has the characteristics of self-repairing, long antibacterial aging and excellent corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of anti-corrosion coatings, and in particular relates to a preparation method of ion-responsive antibacterial anti-corrosion coatings. Background technique [0002] Metal materials are widely used in the field of oil and gas gathering and transportation, but the corrosion of metal materials brings many uncertain factors to the safe operation of oil and gas field facilities. Metal materials represented by steel are in a thermodynamically unstable state in their natural state, and their corrosion is inevitable. The environment of oil and gas fields is relatively harsh, with high temperature, high pressure, high salinity, high salinity and a large number of microorganisms. The harsh environment has brought great challenges to the corrosion protection of oil and gas field pipelines. Among them, microorganisms exist in a wide range, leading to increased corrosion of metals. Corrosion caus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/14C09D5/08C09D163/02A01N25/08A01N31/16A01N25/26A01P1/00
CPCC09D5/14C09D5/08C09D163/00A01N25/08A01N31/16A01N25/26C08K9/12C08K9/10C08K5/136
Inventor 汤玉斐蒋君毅朱丽霞
Owner XIAN UNIV OF TECH
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