Skip to Main content Skip to Navigation
Journal articles

Fluoropolymer processing aids in linear-low density polyethylene extrusion: How to improve their efficiency?

Abstract : Mechanisms of wall coating and wall slippage during extrusion of polyethylene with fluoropolymer based Polymer Processing Aids (PPAs) are reviewed for various types of PPAs. It is shown that the spreading of PPA coating on die surface can be improved by using a wetting agent, like a polyethylene glycol. Wall slip is favored by lowering the entanglement density in the interdiffusion phase between PPA and polyethylene. Finally, the morphology of PPA coating is investigated. It can be explained by the balance between viscosity and interfacial energy.
Document type :
Journal articles
Complete list of metadata

https://hal-mines-paristech.archives-ouvertes.fr/hal-01024342
Contributor : Magalie Prudon <>
Submitted on : Wednesday, July 16, 2014 - 9:33:01 AM
Last modification on : Thursday, September 24, 2020 - 5:22:55 PM

Identifiers

Citation

Claire Dubrocq-Baritaud, Evelyne Darque-Ceretti, Bruno Vergnes. Fluoropolymer processing aids in linear-low density polyethylene extrusion: How to improve their efficiency?. Journal of Non-Newtonian Fluid Mechanics, Elsevier, 2014, 208-209 (June-July), pp.42-52. ⟨10.1016/j.jnnfm.2014.04.002⟩. ⟨hal-01024342⟩

Share

Metrics

Record views

293