MECHANICAL PROPERTIES AND STRENGTH OF AGED PVC/CPE BLENDS

The change of mechanical properties of PVC/CPE blend with different aging was studied. The relationships between the aging time and the properties were also investigated. Mechanical measurements assessed by tensile, flexural, impact tests. The results of tests showed that the PVC and CPE polymer make partially thermodynamically compatible systems. The differences between the original and aged samples occurred at the breaking elongation of the samples. The UV test was carried out on all samples (3 types). The result of the all mechanical and UV tests show that the strength of the aged sample decreases, although it is only a small change.