Anticorrosion Material for the Internal Surface of Steel Piping

摘要

This paper covers a development of an anticorrosion material which could protect the internal surface of steel piping, that conveys crude oil with sea water, for more than 20 years. Regarding to the anticorrosion material consisted of a vinylester resin and glass flakes, the deterioration of lining caused by aromatic compounds was improved by adding a methacryloxy silane coupling agent. To determine the behavior of the coupling agent, the dynamic viscoelasticity was measured by dynamic mechanical spectroscopy. From this measurement, the relationship between the tangent delta value at the glass transition temperature and the anticorrosion performance was confirmed. To suppress the permeation of the chlorine ions included in sea water through the lining, the anticorrosion material was applied to form a lining at least 1 mm thickness.