Composition-dependent properties of polyethylene/kaolin composites - VI. Thermoelastic behavior in the melt state

Citation
Vp. Privalko et al., Composition-dependent properties of polyethylene/kaolin composites - VI. Thermoelastic behavior in the melt state, J THERM ANA, 59(1-2), 2000, pp. 509-516
Citations number
17
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN journal
13886150 → ACNP
Volume
59
Issue
1-2
Year of publication
2000
Pages
509 - 516
Database
ISI
SICI code
1388-6150(2000)59:1-2<509:CPOPC->2.0.ZU;2-C
Abstract
The equilibrium pressure-volume-temperature properties and thermoelastic be havior of kaolin-filled composites of the injection molding grade of high d ensity polyethylene (HDPE) were studied in the temperature interval 423-473 K and in the pressure range 30-100 MPa. It was established that the HDPE m elts in filled composites existed in a somewhat expanded, more compressible state. This effect was quantitatively accounted for by the increased numbe r of external degrees of freedom derived from the Simha-Somcynsky equation of state. The effect of the coupling agent on thermal diffusivities and spe cific heat capacities of filled samples turned out negligibly small.