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Nano antibacterial and anticorrosive paint and preparation method thereof

An antibacterial, anti-corrosion, and nano-technology, applied in anti-corrosion coatings, anti-fouling/underwater coatings, coatings, etc., to achieve excellent stability, stable quality, and low toxicity

Inactive Publication Date: 2014-07-02
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcoming of existing antibacterial and anticorrosion coating on the inner wall of metal pipeline or metal oil tank, and provide a kind of preparation method of novel nano antibacterial and anticorrosion coating, this method is carried out according to the following steps:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: The preparation method of this nano antibacterial anticorrosion coating, concrete operation is as follows:

[0018] (1) Add polyether diol with a molecular weight of 1000, castor oil, and polyaniline nanofibers into the reaction kettle for mixing, stir and raise the temperature. When the temperature rises to 40 °C, add toluene diisocyanate dropwise and finish adding in 50 minutes; then Keep stirring at 60°C for 0.5 h, then add n-butanol and raise the temperature to 80°C, keep stirring, take a sample to measure the NCO value of the terminal group, when the NCO value reaches 2.0%, cool down to 40°C, and vacuum degas at this temperature 0.5 h to obtain component A, in which the mass ratio of polyether diol to castor oil is 8:1, the amount of toluene diisocyanate is calculated according to isocyanic acid index (NCO / OH) = 1:1, n-butanol The addition amount is 5% of the polyurethane prepolymer quality, and the polyaniline nanofiber consumption is 1% of the polyure...

Embodiment 2

[0025] Example 2: The preparation method of this nano antibacterial anticorrosion coating, concrete operation is as follows:

[0026] (1) Preparation steps of component A: Add polyether glycol with a molecular weight of 2000, castor oil, and polyaniline nanofibers into the reaction kettle for mixing, stir and heat up, and when the temperature rises to 50 °C, add toluene di Add isocyanate in 45 minutes; then keep stirring at 60°C for 0.5 h, add n-butanol and raise the temperature to 80°C, keep stirring, take a sample to measure the NCO value of the end group, when the NCO value reaches 2.5%, cool down to 40°C, Vacuum degassing at this temperature for 0.5 h to obtain component A, in which the mass ratio of polyether diol to castor oil is 6:1, and the amount of toluene diisocyanate is based on isocyanic acid index (NCO / OH) = 1.5: 1 calculation, n-butanol consumption is 10% of polyurethane prepolymer quality, polyaniline nanofiber consumption is 10% of polyurethane prepolymer qu...

Embodiment 3

[0033] Example 3: The preparation method of this nano antibacterial anticorrosion coating, concrete operation is as follows:

[0034] (1) Add polyether diol with a molecular weight of 3000, castor oil, and polyaniline nanofibers into the reaction kettle for mixing, stir and raise the temperature. When the temperature rises to 60 °C, add toluene diisocyanate dropwise and finish adding in 55 minutes; then Keep stirring at 60°C for 0.5 h, then add n-butanol and raise the temperature to 80°C, heat-preserve and stir, take a sample to measure the NCO value of the terminal group, when the NCO value reaches 3.0%, cool down to 40°C, and vacuum degas at this temperature for 0.5 h , to obtain component A, wherein the mass ratio of polyether polyol to castor oil is 5:1, the amount of toluene diisocyanate is calculated according to the isocyanic acid index (NCO / OH) = 1.8:1, and the amount of n-butanol is polyurethane 15% of the mass of the prepolymer, and the amount of polyaniline nanofi...

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PUM

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Abstract

The invention discloses a nano-antibacterial anti-corrosion coating and a preparation method thereof, which belong to the field of chemical materials. The nano-anti-bacterial anti-corrosion coating consists of two components, A and B. The A component consists of polyether glycol, castor oil, polyaniline nano It is prepared by the reaction of fiber, toluene diisocyanate and n-butanol. The B component includes castor oil and stannous octoate; the A and B components are mixed according to the mass ratio of 2~5:1 to obtain the nano antibacterial anticorrosion coating. The coating has stable quality and is easy to construct. Simple, with high-efficiency antibacterial and anti-corrosion properties. At the same time, the coating has broad-spectrum bactericidal properties, good light and heat resistance, and has the characteristics of safety and no pollution to the environment; it can be widely used in long-distance oil, natural gas, water and other metals The inner wall of the pipeline is especially suitable for antibacterial and anticorrosion fields of chemical oil storage tanks.

Description

technical field [0001] The invention relates to a nanometer antibacterial anticorrosion coating and a preparation method thereof, belonging to the field of chemical materials. Background technique [0002] The corrosion of long-distance oil, natural gas, water metal pipelines and metal oil tanks in chemical oil depots poses a serious threat to the loss of resources and safety. The method of coating the inner wall of metal pipes or metal oil tanks can effectively reduce the threat caused by corrosion. The choice of coating on the inner wall of metal pipes or metal oil tanks has experienced the development from raw lacquer and epoxy resin in the 1950s and 1960s to the commonly used polyamine enamel, polyurethane paint, and elastic polyurethane paint. However, these coatings do not have antibacterial properties. Because long-distance oil, natural gas, water metal pipelines and the inner wall of oil storage tanks are prone to breed Brevibacterium, Bacillus, Pseudomonas and oth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/08C09D5/08C09D5/14C09D7/12C08G73/02
Inventor 贾庆明陕绍云王亚明蒋丽红胡庭维
Owner KUNMING UNIV OF SCI & TECH
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