Rheological behavior of neat and carbon fiber-reinforced poly(ether ketone ketone) for extrusion deposition additive manufacturing

Vidya Kishore; Christine Ajinjeru; Ahmed A. Hassen; John Lindahl; Vlastimil Kunc; Chad Duty

doi:10.1002/pen.25362

Rheological behavior of neat and carbon fiber-reinforced poly(ether ketone ketone) for extrusion deposition additive manufacturing

Vidya Kishore, Christine Ajinjeru, Ahmed A. Hassen, John Lindahl, Vlastimil Kunc, Chad Duty

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

To develop new materials for extrusion additive manufacturing (AM) systems, a fundamental understanding of rheological properties is essential to correlate the effect of processing on material structure and its properties. In this work, the rheological properties of five different grades of neat and carbon fiber (CF)-reinforced poly(ether ketone ketone) are reported. Rheological properties are essential to understand the effect of reinforcing fibers and AM process parameters such as time, temperature, environment, and shear rate on flow behavior during processing. Small-amplitude oscillatory shear tests and steady shear tests indicated neat grades to exhibit less increase in viscosity over time when processed in air than the CF-filled grades. The filled grades showed greater shear thinning and lower sensitivity to temperature. Overall, this rheological analysis provides a broad framework for determining appropriate processing conditions for extrusion deposition AM of such high-temperature polymer systems.

Original language	English
Pages (from-to)	1066-1075
Number of pages	10
Journal	Polymer Engineering and Science
Volume	60
Issue number	5
DOIs	https://doi.org/10.1002/pen.25362
State	Published - May 1 2020

Funding

This research was sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office, under contract DE-AC05- 00OR22725 with UT-Battelle, LLC. The authors gratefully acknowledge Arkema Inc. for providing the materials used in this study and thank Dr. Mark Aubart, Dr. David Liu, and Mr. Timothy Spahr for their inputs for this research work. This research was sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office, under contract DE‐AC05‐ 00OR22725 with UT‐Battelle, LLC. The authors gratefully acknowledge Arkema Inc. for providing the materials used in this study and thank Dr. Mark Aubart, Dr. David Liu, and Mr. Timothy Spahr for their inputs for this research work.

Funders	Funder number
Arkema Inc.
National Science Foundation	1841507
U.S. Department of Energy
Advanced Manufacturing Office	DE‐AC05‐ 00OR22725
Office of Energy Efficiency and Renewable Energy

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abstract = "To develop new materials for extrusion additive manufacturing (AM) systems, a fundamental understanding of rheological properties is essential to correlate the effect of processing on material structure and its properties. In this work, the rheological properties of five different grades of neat and carbon fiber (CF)-reinforced poly(ether ketone ketone) are reported. Rheological properties are essential to understand the effect of reinforcing fibers and AM process parameters such as time, temperature, environment, and shear rate on flow behavior during processing. Small-amplitude oscillatory shear tests and steady shear tests indicated neat grades to exhibit less increase in viscosity over time when processed in air than the CF-filled grades. The filled grades showed greater shear thinning and lower sensitivity to temperature. Overall, this rheological analysis provides a broad framework for determining appropriate processing conditions for extrusion deposition AM of such high-temperature polymer systems.",

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AU - Kunc, Vlastimil

AU - Duty, Chad

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Rheological behavior of neat and carbon fiber-reinforced poly(ether ketone ketone) for extrusion deposition additive manufacturing

Abstract

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