The work discusses new possibilities of modifying the functionality of polymer products by changing their material structure during processing and consequently the time-dependent properties which define the durability of the final product. By analysing the low density polyethylene extrudates produced with a laboratory extruder, we observed that changing the processing conditions improves the durability of extrudates by several orders of magnitude. This opens new possibilities in the field of modifying the functionality of polymer products, and hence, better competitiveness on the world market.
COBISS.SI-ID: 11292955
This is the second paper in the series addressing the constitutive modeling of dynamically loaded elastomeric products such as power transmission belts. When the time-dependent properties of the elastomeric material “match” the time-scale of the dynamic loading a strain accumulation process occurs. It was shown that the location of a critical angular velocity, where the strain accumulation is the most intensive, strongly depends on the distribution of the retardation spectrum, whereas the magnitude of the accumulated strain is governed by the strength of the corresponding spectrum lines.
COBISS.SI-ID: 11241243