ENABLING RECYCLING OF COMPOSITES: UNDERSTANDING THE IMPACTS OF MULTIPLE THERMAL PROCESSING CYCLES

Roo Walker; Daniel Webb; Samarthya Bhagia; Nathan Black; Ally Collier; Soydan Ozcan; Vlastimil Kunc; Chad Duty

doi:10.33599/nasampe/s.23.0099

ENABLING RECYCLING OF COMPOSITES: UNDERSTANDING THE IMPACTS OF MULTIPLE THERMAL PROCESSING CYCLES

Roo Walker, Daniel Webb, Samarthya Bhagia, Nathan Black, Ally Collier, Soydan Ozcan, Vlastimil Kunc, Chad Duty

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

When considering the utilization of recycled short carbon fiber feedstock materials for advanced manufacturing, understanding the material degradation behavior is essential in determining how many times a composite material can be effectively reprocessed and remanufactured. This study characterizes the degradation behavior of short carbon fiber acrylonitrile butadiene (CF-ABS) that has been reprocessed five times with twin screw extrusion. Parallel plate rheology was completed to observe the degradation in complex viscosity of the recycled feedstock materials. Gel permeation chromatography (GPC) was utilized to characterize the changes in molecular weight distribution of the recycled materials as a result of thermal and mechanical degradation during the re-processing steps. Rheological characterization, GPC, and twin-screw processing data help inform the process optimizations required to process the recycled feedstock material. Successful characterization of the degradation behavior of short fiber composite feedstock materials aids in increased understanding of the lifespan of high value carbon fiber composite materials and aids in process optimization of recycled composite materials.

Original language	English
Title of host publication	SAMPE 2023 Conference and Exhibition
Publisher	Soc. for the Advancement of Material and Process Engineering
ISBN (Electronic)	9781934551431
DOIs	https://doi.org/10.33599/nasampe/s.23.0099
State	Published - 2023
Event	SAMPE 2023 Conference and Exhibition - Seattle, United States Duration: Apr 17 2023 → Apr 20 2023

Publication series

Name	International SAMPE Technical Conference
Volume	2023-April

Conference

Conference	SAMPE 2023 Conference and Exhibition
Country/Territory	United States
City	Seattle
Period	04/17/23 → 04/20/23

Funding

This research is sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office, under Contract No. DE-AC05-00OR22725 with UT-Battelle, LLC. This research was supported by the DOE Office of Energy Efficiency and Renewable Energy, Manufacturing Demonstration Facility. The authors are thankful for the materials supplied by Techmer Engineered Solutions.

Keywords

recycled composites
rheology
thermal degradation

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.33599/nasampe/s.23.0099

Cite this

Walker, R., Webb, D., Bhagia, S., Black, N., Collier, A., Ozcan, S., Kunc, V., & Duty, C. (2023). ENABLING RECYCLING OF COMPOSITES: UNDERSTANDING THE IMPACTS OF MULTIPLE THERMAL PROCESSING CYCLES. In SAMPE 2023 Conference and Exhibition (International SAMPE Technical Conference; Vol. 2023-April). Soc. for the Advancement of Material and Process Engineering. https://doi.org/10.33599/nasampe/s.23.0099

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title = "ENABLING RECYCLING OF COMPOSITES: UNDERSTANDING THE IMPACTS OF MULTIPLE THERMAL PROCESSING CYCLES",

abstract = "When considering the utilization of recycled short carbon fiber feedstock materials for advanced manufacturing, understanding the material degradation behavior is essential in determining how many times a composite material can be effectively reprocessed and remanufactured. This study characterizes the degradation behavior of short carbon fiber acrylonitrile butadiene (CF-ABS) that has been reprocessed five times with twin screw extrusion. Parallel plate rheology was completed to observe the degradation in complex viscosity of the recycled feedstock materials. Gel permeation chromatography (GPC) was utilized to characterize the changes in molecular weight distribution of the recycled materials as a result of thermal and mechanical degradation during the re-processing steps. Rheological characterization, GPC, and twin-screw processing data help inform the process optimizations required to process the recycled feedstock material. Successful characterization of the degradation behavior of short fiber composite feedstock materials aids in increased understanding of the lifespan of high value carbon fiber composite materials and aids in process optimization of recycled composite materials.",

keywords = "recycled composites, rheology, thermal degradation",

author = "Roo Walker and Daniel Webb and Samarthya Bhagia and Nathan Black and Ally Collier and Soydan Ozcan and Vlastimil Kunc and Chad Duty",

note = "Publisher Copyright: {\textcopyright} 2023 Soc. for the Advancement of Material and Process Engineering. All rights reserved.; SAMPE 2023 Conference and Exhibition ; Conference date: 17-04-2023 Through 20-04-2023",

year = "2023",

doi = "10.33599/nasampe/s.23.0099",

language = "English",

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publisher = "Soc. for the Advancement of Material and Process Engineering",

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Walker, R, Webb, D, Bhagia, S, Black, N, Collier, A, Ozcan, S , Kunc, V & Duty, C 2023, ENABLING RECYCLING OF COMPOSITES: UNDERSTANDING THE IMPACTS OF MULTIPLE THERMAL PROCESSING CYCLES. in SAMPE 2023 Conference and Exhibition. International SAMPE Technical Conference, vol. 2023-April, Soc. for the Advancement of Material and Process Engineering, SAMPE 2023 Conference and Exhibition, Seattle, United States, 04/17/23. https://doi.org/10.33599/nasampe/s.23.0099

ENABLING RECYCLING OF COMPOSITES: UNDERSTANDING THE IMPACTS OF MULTIPLE THERMAL PROCESSING CYCLES. / Walker, Roo; Webb, Daniel; Bhagia, Samarthya et al.
SAMPE 2023 Conference and Exhibition. Soc. for the Advancement of Material and Process Engineering, 2023. (International SAMPE Technical Conference; Vol. 2023-April).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Walker, Roo

AU - Webb, Daniel

AU - Bhagia, Samarthya

AU - Black, Nathan

AU - Collier, Ally

AU - Ozcan, Soydan

AU - Kunc, Vlastimil

AU - Duty, Chad

PY - 2023

Y1 - 2023

N2 - When considering the utilization of recycled short carbon fiber feedstock materials for advanced manufacturing, understanding the material degradation behavior is essential in determining how many times a composite material can be effectively reprocessed and remanufactured. This study characterizes the degradation behavior of short carbon fiber acrylonitrile butadiene (CF-ABS) that has been reprocessed five times with twin screw extrusion. Parallel plate rheology was completed to observe the degradation in complex viscosity of the recycled feedstock materials. Gel permeation chromatography (GPC) was utilized to characterize the changes in molecular weight distribution of the recycled materials as a result of thermal and mechanical degradation during the re-processing steps. Rheological characterization, GPC, and twin-screw processing data help inform the process optimizations required to process the recycled feedstock material. Successful characterization of the degradation behavior of short fiber composite feedstock materials aids in increased understanding of the lifespan of high value carbon fiber composite materials and aids in process optimization of recycled composite materials.

AB - When considering the utilization of recycled short carbon fiber feedstock materials for advanced manufacturing, understanding the material degradation behavior is essential in determining how many times a composite material can be effectively reprocessed and remanufactured. This study characterizes the degradation behavior of short carbon fiber acrylonitrile butadiene (CF-ABS) that has been reprocessed five times with twin screw extrusion. Parallel plate rheology was completed to observe the degradation in complex viscosity of the recycled feedstock materials. Gel permeation chromatography (GPC) was utilized to characterize the changes in molecular weight distribution of the recycled materials as a result of thermal and mechanical degradation during the re-processing steps. Rheological characterization, GPC, and twin-screw processing data help inform the process optimizations required to process the recycled feedstock material. Successful characterization of the degradation behavior of short fiber composite feedstock materials aids in increased understanding of the lifespan of high value carbon fiber composite materials and aids in process optimization of recycled composite materials.

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KW - thermal degradation

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M3 - Conference contribution

AN - SCOPUS:85171456923

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BT - SAMPE 2023 Conference and Exhibition

PB - Soc. for the Advancement of Material and Process Engineering

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ENABLING RECYCLING OF COMPOSITES: UNDERSTANDING THE IMPACTS OF MULTIPLE THERMAL PROCESSING CYCLES

Abstract

Publication series

Conference

Funding

Keywords

UN SDGs

Access to Document

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