Abstract
In the present study, a group of microcapsule-based smart coatings has been investigated to decrease the corrosion rate in oil and gas transmission lines. The microcapsules are made of epoxy resin and self-healing materials such as oil, which acts as a repairing agent. In this study, the parameters affecting the coating performance such as agitation rate in the micro capsulation process, microcapsule size, and percentage of microcapsule used in the coating structure have been investigated and optimized. Also, other properties of the smart coating, such as the ability to protect against corrosion and adhesion of the coating to the substrate, are examined by Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD) analysis, and pull-off test. The use of microcapsules indicates that as the microcapsules become smaller, the corrosion resistance, as well as the adhesion of the coating to the substrate, is improved. Also, the use of microcapsules in the structure improves the
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