Rheology and Fluid Dynamics Studies
Peer reviewed
Abstract
Abstract
Molten polymers exhibit distinct slip characteristics over high-surface-energy metallic dies and low-surface-energy polymer processing aid (PPA) coatings. In this work, a methodology is developed to quantify the composite slip of molten polymers flowing over partially coated surfaces, where slip varies spatially between coated and bare regions. The proposed model is derived from a fundamental force balance governing pressure-driven flow and incorporates a recently formulated PPA coating dynamics framework describing the adsorption and desorption of PPA particles on the die wall [Jia et al., J. Rheol. 69, 495–505 (2025)]. The methodology is validated using capillary extrusion data for a linear low-density polyethylene melt, accurately capturing the evolution of wall shear stress and slip velocity associated with dynamic PPA coverage. The results demonstrate that the composite slip model provides a physically consistent description of the coupling between interfacial coating kinetics and macroscopic slip behavior in polymer flow.
Direct answer
What can I do from this paper page?
Use this page to scan "A composite slip model for molten polymers over metallic walls partially covered with low-surface-energy coatings" quickly: start with the summary and abstract, then check the authors, source, topics, and related papers. From here, open Scollr to follow Rheology and Fluid Dynamics Studies research, save the paper, or map adjacent work.
Research areas
Follow related topics
Citation
BibTeX
@article{Jia2026composite,
title = {A composite slip model for molten polymers over metallic walls partially covered with low-surface-energy coatings},
author = {Xiaohan Jia and Nicole Gerrits and Sarfraz Haider Abbasi and Antonios K. Doufas and Savvas G. Hatzikiriakos},
journal = {Journal of Rheology},
year = {2026},
doi = {10.1122/8.0001200},
url = {https://doi.org/10.1122/8.0001200}
}FAQ
Using this paper in a discovery workflow
How do I find related work for this paper?
Use the related papers and topic links on this page as starting points. In Scollr, you can also open the paper and build a literature map around its references, citing papers, and related work.
How can I keep up with new Rheology and Fluid Dynamics Studies research papers?
Follow Rheology and Fluid Dynamics Studies research in Scollr. New papers from the topic flow into a personalized feed, and you can save useful studies to revisit later.
Can I cite this paper from this page?
This page includes a static BibTeX block for A composite slip model for molten polymers over metallic walls partially covered with low-surface-energy coatings. Always verify the DOI, source, and publication details against the publisher record before submitting a manuscript.
Follow this research in Scollr
Follow the topics and authors behind this paper, save useful studies, and build a literature map when you are ready to go deeper.
Get the app