THE INFLUENCE OF POLYMER COMPOSITE MATERIALS' SURFACE WEATHERING ON ITS MECHANICAL PROPERTIES
The difference in weathering of carbon-reinforced plastics on the exposed (front) and shaded (back) side of the samples was studied during the natural exposure in a moderately warm climate for 75 months. Surface profile parameters of the exposed samples were studied on both sides of the samples. Peak and valley height distribution peaks are 30-85% higher on the exposed side compared to the shaded side. The application of static load to the exposed or shaded side of the samples during the exposure resulted in different flexural strength.