PHYSICAL-PROPERTIES OF POLY(ETHYLENE ADIPATE) LOW-DENSITY POLYETHYLENE BLENDS

Mechanical and rheological properties of poly(ethylene adipate) (PEA)/ low-density polyethylene (LDPE) blends were investigated. DSC results showed that there is no miscibility between PEA and LDPE. Tensile stre ngth decreases with increasing PEA content, while the modulus increase s. Elongation at break decreases with increasing PEA content. A rheolo gical constitutive equation was used for describing and predicting the steady-state shear viscosity of PEA/LDPE blend. The suggested equatio n was successfully able to describe and predict viscosity of the blend as functions of shear rate and temperature. (C) 1997 John Wiley & Son s, Inc.