Test for Anticorrosive Properties of Packing Paper under the Conditions of Increased Humidity and Presence of Chlorides

Abstract

During transportation, long-term storage and operation metal products are exposed to atmospheric corrosion that leads to billions of losses every year. The urgency of the problem being investigated is due to the fact that export of metal products is mainly carried out by sea through regions with humid tropical climate. The search for new packaging materials is a significant trend in corrosion control. The research of effective corrosion inhibitors that are capable to protect all kinds of metals, such as steel, zinc, copper, aluminum, is actually carried out, as well as the process of development of getting the packaging materials containing the corrosion inhibitors. The purpose of this paper was a research of anticorrosive properties of experimental packaging papers under increased humidity and in the presence of chloride of sodium. In this paper the test conditions which, correspond to the handling conditions of steel products through the zones with tropical climate, were simulated. The studies research found out that the experimental patented corrosion inhibitors do not take protective effect on galvanized steel. The generated corrosion products are incoherent, weakly coupled with metal and easily fall off (crumble), that results in metal loss.