Abstract
The objective of this work is to investigate the microstructure of carbon fiber (CF) reinforced polyphenylene sulfide (PPS) resulted from extrusion-based large-scale additive manufacturing (AM) process. This study attempts to establish a fundamental understanding on the role of AM process in transferring a set of intrinsic material properties to the macroscopic properties of the final part. Questions on development of morphology focus on polymer crystal orientation and carbon fiber alignment in proximity to the interface of successive layers. Our findings demonstrated that PPS at the interface has lower crystal perfectness compared to the layer region; the carbon fiber shows higher level of preferred orientation at the interface. Successive layers along the building z-direction present lower storage modulus as it is demonstrated in the dynamic mechanical analysis (DMA).
| Original language | English |
|---|---|
| State | Published - 2018 |
| Event | 2018 Society of Plastics Engineers Annual Technical Conference, ANTEC 2018 - Orlando, United States Duration: May 7 2018 → May 10 2018 |
Conference
| Conference | 2018 Society of Plastics Engineers Annual Technical Conference, ANTEC 2018 |
|---|---|
| Country/Territory | United States |
| City | Orlando |
| Period | 05/7/18 → 05/10/18 |
Funding
We appreciate Cincinnati, Inc. for providing the Big Area Additive Manufacturing equipment for conducting this research. We appreciate Techmer PM, LLC for providing the materials that are used for this study. The authors are thankful for the active participation of TWWomer and Associates, LLC and Performance Feed Screws. We thank Professor Chad Duty and Professor Brett Compton from University of Tennessee Knoxville for use of their rheometer and optical microscope. Research sponsored by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Advanced Manufacturing Office, under contract DEAC05-00OR22725 with UT-Battelle, LLC. Notice of Copyright: This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan)
| Funders | Funder number |
|---|---|
| Cincinnati, Inc. | |
| U.S. Department oEnefrgy | |
| U.S. Department of Energy | |
| Office of Energy Efficiency and Renewable Energy | DEAC05-00OR22725 |
| University of Tennessee |
