INVESTIGATION OF MECHANICAL PROPERTIES OF POLYUREA COATED METAL PLATES


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Yıldırım M., Çorbacıoğlu B. D.

International Natural Science, Engineering and Material Technologies Conference , İstanbul, Türkiye, 9 - 10 Eylül 2019, ss.139

  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.139

Özet

In this study, 1mm, 2mm and 3mm thicknesses polyurea coating has been applied on different types of metal plates. Mechanical properties of coated and uncoated plates were studied and contribution of polymer coatings to durability of materials was investigated.

Polyurea has been greatly used in coating applications and other surface reinforcement or insulation technologies because of its superior physical properties. Polyurea is classified as an elastic copolymers and it's composed by mixing two reactive components. This polymerization reaction verifys between isocyanate and amine groups 1:1 by volume [1]. There are several recent studies about impact resistance of polyurea in the literature. Mohotti et al. (2014) [2] investigated polyurea-coated aluminum plates under low velocity impact. The data obtained from the study proved that, polyurea coating decreases deformation of aluminuplates and that coated plates absorbs more energy than uncoated plates. These results show that polyurea can be used as an efficient energy absorber / damping material against low velocity impact. In our study, we have implemented three different thicknesses (1,2 and 3mm) polyurea coatings on three different metal types (aluminum, steel and DKP) all is same thicknesses (4mm) and tensile strength test was applied to those coated and uncoated plates. The results were evaulated in terms of coating thicknesses and plate types. Tensile tests were carried out on 12 plates, 3 of which were uncoated and 9 of which were coated. By checking the obtained results, formation of the metal plates was investigated under variable tensile strength with coating thickness.