THE RESEARCH OF POLYPROPYLENE FABRICS WITH VOLATILE CORROSION INHIBITOR FOR PACKAGING OF ZINC-COATED PRODUCTS

During operation, long-term storage and transportation through various climatic zones, metal products are exposed to the atmospheric corrosion that leads to billions of losses every year. One of the most progressive and effective methods of corrosion protection is the application of the volatile corrosion inhibitors characterized by high vapor pressure, the ability to saturate closed space with their vapors, to be absorbed by a metal surface and to inhibit the corrosion processes. Polyethylene films, crepe papers, and combined materials are the carriers of volatile inhibitors. The aim of the paper is the study of the performance properties of the polypropylene laminated fabrics used for packaging of zinc-coated metal goods. These fabrics have a number of advantages: durability, moisture resistance, they are easy to weld and sew. The authors carried out the comparative studies of various properties of new packaging materials for metal goods and selected the best-performing material. Physical-mechanical and barrier properties of polypropylene laminated fabric with and without volatile corrosion inhibitor are investigated. The study evaluated the protective ability of polypropylene laminated fabrics for the zinc-coated wire. Tests were carried out under the standard techniques; the inhibitor content was determined using the method of simultaneous thermal analysis and the method of “Walki Wisa” company. The comparative study showed that the polypropylene laminated fabric with the CORTEC corrosion inhibitor had the higher strength (when laminating as well) and deformation properties, better protective ability against corrosion. It is characterized by lower values of water absorption and vapor transmission. The authors propose the recommendations for improving the quality of polypropylene laminated fabric for corrosion protection of zinc-coated metal goods.