Skip to Main content Skip to Navigation
Theses

Structuration des charges dans des mélanges de polymères immiscibles

Abstract : The aim of this work is to understand mechanisms responsible for particles localisation in immiscible polymer blends. This study shows that carbon-black fillers localisation in polypropylene (PP)/ poly-ε-caprolactone (PCL) blends is strongly influenced by the viscosity ratio (rather than thermodynamic parameters through the wetting coefficient). The localisation of the fillers is explained by a competition of hydrodynamic forces applied on particles localised at the interface. The transfer of fillers is investigated at the droplet scale by observation of the relaxation of CB-filled PCL droplets suspended in PP matrix. CB particles are transferred from the PCL droplet to the PP matrix by a new mechanism, called “zip flow”, which involves the erosion of the droplet edges, leading to the extraction of particles localised there. The control of these parameters allows to localize fillers selectively at the interface and to reduce significantly the electrical percolation threshold.
Document type :
Theses
Complete list of metadatas

Cited literature [182 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00839195
Contributor : Abes Star :  Contact
Submitted on : Thursday, June 27, 2013 - 2:07:24 PM
Last modification on : Tuesday, March 31, 2020 - 3:22:55 PM
Long-term archiving on: : Wednesday, April 5, 2017 - 4:31:13 AM

File

2013LEMA1008.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-00839195, version 1

Citation

Julien Plattier-Boné. Structuration des charges dans des mélanges de polymères immiscibles. Autre. Université du Maine, 2013. Français. ⟨NNT : 2013LEMA1008⟩. ⟨tel-00839195⟩

Share

Metrics

Record views

645

Files downloads

352