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51316-7310-Development of Self-Healing Coatings using Encapsulated Linseed Oil and Tung Oil as Healing Agents

Picture for Development of Self-Healing Coatings using Encapsulated Linseed Oil and Tung Oil as Healing Agents
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Encapsulation of Linseed Oil & Tung Oil in urea-formaldehyde shells was performed using in-situ polymerization technique.  Thin film self-healing coatings with uniform and quick self-healing ability were achieved with microcapsules at concentration of 3 wt%. Anti-corrosive performance was evaluated using immersion test & electrochemical impedance spectroscopy (EIS).

Product Number: 51316-7310-SG
ISBN: 7310 2016 CP
Author: Karan Thanawala
Publication Date: 2016
Industries: Coatings and Linings , Science of Corrosion
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Encapsulation of Linseed Oil and Tung Oil in urea-formaldehyde shells was performed using in-situ polymerization technique. Optimization of process parameters for preparation of microcapsules were carried out using calculated amounts of oil and urea-formaldehyde, that were subjected to formation of spherical microcapsules of 25-45 μm size, that depend on the reaction time and stirring speed. The microcapsules thus prepared were analyzed using optical microscopy (OM), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR), for ensuring the encapsulation of oil in the thin shells of urea-formaldehyde. Thin film self-healing coatings with uniform and quick self-healing ability were achieved with microcapsules at an optimized concentration of 3 wt%. The anti-corrosive performance was evaluated using immersion test and electrochemical impedance spectroscopy (EIS).

Key words: downloadable, self-healing coatings, microcapsules, anti-corrosive coatings, electrochemistry

 

 

Encapsulation of Linseed Oil and Tung Oil in urea-formaldehyde shells was performed using in-situ polymerization technique. Optimization of process parameters for preparation of microcapsules were carried out using calculated amounts of oil and urea-formaldehyde, that were subjected to formation of spherical microcapsules of 25-45 μm size, that depend on the reaction time and stirring speed. The microcapsules thus prepared were analyzed using optical microscopy (OM), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR), for ensuring the encapsulation of oil in the thin shells of urea-formaldehyde. Thin film self-healing coatings with uniform and quick self-healing ability were achieved with microcapsules at an optimized concentration of 3 wt%. The anti-corrosive performance was evaluated using immersion test and electrochemical impedance spectroscopy (EIS).

Key words: downloadable, self-healing coatings, microcapsules, anti-corrosive coatings, electrochemistry

 

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51316-7304-Evaluation of Protective Coating Performance in a Cyclic-Temperature Environment

Product Number: 51316-7304-SG
ISBN: 7304 2016 CP
Author: Junki Miyashita
Publication Date: 2016
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Overview of coatings for a cyclic-temperature environment. Test method, including a heat cycle between 21 to 300 deg-C simulating the dehydrator operation and exposure to salt spray. The performances of the three coatings were evaluated using this method. Factors to be considered for coating selection in the cyclic-temperature environment are discussed.c
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51316-7312-Changes in Test Methodology to Reflect the Changes Within the Oil and Gas Linings Market

Product Number: 51316-7312-SG
ISBN: 7312 2016 CP
Author: Michael Harrison
Publication Date: 2016
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Traditional internal lining schemes for the storage/transport of crude oil & refined fuels may no longer be appropriate. The aggressive nature of crude oil (high temp. & more sour), high purity refined products & increased use of biofuels demand better linings & more certain test results. The focus of this paper is to review the trends in test methodology from the early 1990’s to present.
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51316-7152-Self-healing protection of pipeline corrosion by epoxy coating with preloaded inhibitors

Product Number: 51316-7152-SG
ISBN: 7152 2016 CP
Author: Frank Cheng
Publication Date: 2016
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Self-healing coatings for corrosion protection refer to those with the ability to sense the corrosive environment and to release preloaded inhibitors from the coating matrix by a controlled mode. In this work, SiO2 nanoparticle based polyelectrolyte nanocontainers were fabricated by the LbL method to store corrosion inhibitor BTA.

 

 
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