RHEOLOGICAL CHARACTERISATION OF LDPE MATERIALS BY MEANS OF DIFFERENTIAL CONSTITUTIVE EQUATIONS
Abstract eng: For rheological description of branched LDPE melts (Escorene LD165BW1 a Bralen RB0323) the following differential constitutive equations were used: eXtended Pom-Pom, Phan Thien-Tanner-XPP, and modified Leonov models. There was carried out quantitative and qualitative comparison of efficiency of the predictions determined by these models with the experimental data measured at 200oC. For both materials there were measured linear viscoelastic properties, shear and uniaxial extensional viscosities.
Contributors:
Publisher:
Institute of Thermomechanics AS CR, v.v.i., Prague
Conference Title:
Conference Title:
Engineering Mechanics 2007
Conference Venue:
Svratka (CZ)
Conference Dates:
2007-05-14 / 2007-05-17
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2014-10-24, last modified 2014-11-18
guest ::
