6533b7d6fe1ef96bd1266e08

RESEARCH PRODUCT

Necking behavior of low-density polyethylene-isotactic polypropylene blends: A morphological investigation

Giuseppe SpadaroGiovanni Rizzo

subject

PolypropyleneMaterials scienceMorphology (linguistics)Polymers and PlasticsScanning electron microscopeGeneral Chemistrychemistry.chemical_compoundLow-density polyethyleneTensile behaviorchemistryTacticityMaterials ChemistryComposite materialNeckingTensile testing

description

The tensile behavior of low-density polyethylene-isotactic polypropylene blends was investigated at room temperature. Neck formation and propagation along the whole length of the samples were observed for the whole range of composition. This behavior, which is not indicated by most data available in the literature, was examined in relation to sample morphology by scanning electron microscopy. The results of this investigation indicated some differences between the morphology of these materials and the morphology of blends which do not undergo necking propagation.

https://doi.org/10.1002/pen.760240406