A rheology and processing study on controlling material and process defects in polymer melt extrusion film casting using polymer blends

D Rokade, P Patil, S Nandimath… - Journal of Plastic Film & …, 2023 - journals.sagepub.com
The primary objective of this research paper is to control the material and process defects in
polymer melt extrusion film casting (EFC) process for linear chain architecture polyethylene …

[HTML][HTML] Mathematical modelling of unsteady fractional Phan Thien Tanner fluid

N Faraz, Y Khan, A Anjum - Alexandria Engineering Journal, 2020 - Elsevier
The fractional calculus approach in the constitutive relationship model of viscoelastic fluid is
introduced. For the first time, unsteady fractional Phan Thien Tanner fluid is modeled, which …

The impact of upstream contraction flow on three-dimensional polymer extrudate swell from slit dies

D Tang, FH Marchesini, L Cardon… - Journal of Non-Newtonian …, 2020 - Elsevier
The relevance of upstream contraction for extrudate swell behavior of polymer melts is
numerically investigated for slit dies with an aspect ratio of 10 and a length-to-height ratio …

Elastic and shear-thinning effects in contraction flows: a comparison

KY Pérez-Salas, EL García-Romero… - Rheologica Acta, 2024 - Springer
The flow through a 4: 1 planar contraction has been investigated using different rheological
models having the same shear viscosity, namely, the inelastic Carreau-Yasuda model (CY) …

Effect of die exit flow conditions on air-gap film dynamics in two-dimensional film casting processes

G Park, HS Ji, JS Lee, HW Jung, JC Hyun - Journal of Non-Newtonian Fluid …, 2024 - Elsevier
The impact of the inlet velocity profile at the die exit on the film dynamics within the air-gap
region was investigated using numerical simulations for both Newtonian and viscoelastic …

Controlling draw resonance during extrusion film casting of nanoclay filled linear low-density polyethylene: An experimental study and numerical linear stability …

D Rokade, S Chougale, P Patil… - Journal of Plastic …, 2021 - journals.sagepub.com
Commercially important extrusion film casting (EFC) processes for manufacturing plastic
films or sheets are hampered by several instabilities that severely limits their productivity. In …

[HTML][HTML] Flow visualization by Matlab® based image analysis of high-speed polymer melt extrusion film casting process for determining necking defect and quantifying …

A Vagga, S Aherrao, H Pol, V Borkar - Advanced Industrial and …, 2022 - Elsevier
The primary objective of this research paper is to detect and quantify the necking defect and
surface velocity profiles in high-speed polymer melt extrusion film casting (EFC) process …

Non-Newtonian effects on draw resonance in film casting

M Bechert - Journal of Non-Newtonian Fluid Mechanics, 2020 - Elsevier
In this paper, the influence of non-Newtonian material properties on the draw resonance
instability in film casting is investigated. Viscoelastic models of infinite width film casting are …

Numerical and experimental studies on design of multi-lumen tube extruded with drawing and air flow

HC Lee, SG Hong, W Jun, S Liu, JE Ryu… - Journal of Manufacturing …, 2023 - Elsevier
This study represents the design and optimization procedure of a multi-lumen tube used for
endoscopic retrograde cholangiopancreatography (ERCP) catheter. The geometry of tip and …

[PDF][PDF] Advanced Industrial and Engineering Polymer Research

A Bata, P Gerse, E Slezák, F Ronkay - 2023 - researchgate.net
abstract Injection moulded specimens were produced from biodegradable poly (butylene
succinate)(PBS)/organomodified montmorillonite (OMMT) nanocomposites, after melt …