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Extrusion Visualization - from Blend Structure to Sharkskin

Published

Author(s)

Kalman D. Migler

Abstract

Over the last five years, we have developed optical technologies for in-line monitoring of extrusion. We review two areas where we have succeeded in uncovering important concepts and phenomena by shedding light on processes that were previously unobservable. In the area of polymer blends, we have made real-time observations of blend microstructure during extrusion. we found conditions by which droplets could align in the vorticity axis. In the area of sharkskin and polyolefin extrusion, we have visualized how polymer process additives act and what causes sharkskin.
Proceedings Title
Society of Plastics Engineers, Annual Technical Conference and Exhibition | 59 | |
Volume
No. 3
Conference Dates
May 7-8, 2001
Conference Location
Dallas, TX
Conference Title
Society of Plastics Engineers

Keywords

Droplet, extrusion, instabilities, polyethylene, rheology, sharkskin, velocimetry

Citation

Migler, K. (2001), Extrusion Visualization - from Blend Structure to Sharkskin, Society of Plastics Engineers, Annual Technical Conference and Exhibition | 59 | |, Dallas, TX, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=851904 (Accessed April 22, 2024)
Created May 1, 2001, Updated February 17, 2017