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The aim of this research was to obtain two-layer polymer composites with
favorable mechanical and functional properties. The composites consisted of one lower
layer of polymer with less elastic properties, containing no admixtures, and one upper layer
of polymer with more elastic properties, containing plant admixtures, in the amount of 10%
by weight of either goldenrod (Solidago virgaurea L.), or of turmeric (Curcuma longa L.). The
admixtures S. virgaurea and C. longa were intended to introduce new biodegradable and
medicinal properties without causing too much deterioration of physical or mechanical
properties. Some polymer composites additionally contained magnetic particles in the
form of carbonyl iron (Fe) in the amount of 20% by weight. The tests of mechanical tensile
strength of the composites, water absorption, frost resistance, and surface contact angle
were performed. Microscopic examinations determined the roughness of the cross-sectional
surfaces. A constant magnetic field with magnetic induction B, which was an additional
external factor changing the properties and structure of two-layer polymer composites, was
also used in the research.
