Biodegradable polymer properties through ceramic coatings

Marguta Alina; Mazurchevici Simona-Nicoleta; Carausu Constantin; Nedelcu Dumitru

Marguta Alina „Gheorghe Asachi” Technical University of Iasi
Mazurchevici Simona-Nicoleta „Gheorghe Asachi” Technical University of Iasi
Carausu Constantin „Gheorghe Asachi” Technical University of Iasi
Nedelcu Dumitru „Gheorghe Asachi” Technical University of Iasi

Keywords: lignin-based polymer, coating, micro powders, wear, adhesion

Abstract

Coating of bio-based polymers with ceramic layer has attracted interest recently, the
research topic raising difficulties regarding the technology of obtaining layers that involve very high
working temperatures. The study aims to analyses the mechanical, tribological and structural
characteristics of the Arboblend V2 Nature biodegradable polymer after the deposition of ceramic
microlayers. The micro powders used were Amdry 6420 (Cr2O3), Metco 143 (ZrO2 18TiO2 10Y2O3)
and Metco 136F (Cr2O3-xSiO2-yTiO2). The coated samples were obtained by injection molding and
the deposition was achieved by using Atmospheric Plasma Spray (APS) method. The results of the
related analyses showed that, in general, the deposits of ceramic micro particles increased the material
surface characteristics (hardness, scratch resistance, apparent friction coefficient), due to the
uniformity of the ceramic coating on the polymeric substrate. Based on these, it was possible to
recommend the use of coated bio-based polymer - Arboblend V2 Nature in harsh operating conditions,
such as the automotive industry.

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