Abstrakt:
For formulation of hot melt adhesives, ethylene-vinyl acetate copolymers (EVAK)
are most commonly used. In this paper, the results of measurements of mechanical
and rheological properties of three EVAK components of various melt indexes are
presented. These properties were studied under the steady shear and dynamic
conditions using a DMA analyser and a Haake MARS rheometer. From the DMA
experimental data, the glass transition temperatures of EVAK components were
determined. On the rheometer MARS, the measurements of flow curves, primary
normal stress differences, oscillatory and creep & recovery tests of melted samples
were performed.
