6533b830fe1ef96bd12978f7
RESEARCH PRODUCT
Morphology Modification of Polyethylene/Clay Nanocomposite Samples under Convergent Flow
Francesco Paolo La MantiaNadka Tzankova DintchevaRosamaria Marinosubject
Materials scienceNanocompositeMorphology (linguistics)Polymers and PlasticsCapillary actionGeneral Chemical EngineeringOrganic ChemistryMineralogyPolyethyleneMatrix (geology)Stress (mechanics)chemistry.chemical_compoundchemistryMaterials ChemistryComposite materialMaterial propertiesSpinningdescription
The morphology of PE/CL nanocomposite samples subjected to convergent flows is studied. Elongational flow – the typical flow involved in spinning and film-blowing processing operations – significantly increases with the reduction of the capillary diameter. The values of the convergent extensional stress (calculated by Cogswell's formula) for the PE/CL systems, for all the adopted capillary geometries, are greater than the calculated values for pure polyethylene. The applied convergent flow, at the entrance of the capillary, is able to change the clay morphology and consequently the final material properties on the PE/CL system with limited affinity between the matrix and organo-modified clay particles.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-08-04 | Macromolecular Materials and Engineering |