Effect of post-processing annealing on crystallinity development and mechanical properties of polyphenylene sulfide composites printed on large-format extrusion deposition system

Vidya Kishore, Xun Chen, Ahmed A. Hassen, John Lindahl, Vlastimil Kunc, Chad Duty

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This work investigates the effect of annealing on structure development and mechanical properties of parts printed on a large-format extrusion additive manufacturing system using short carbon fiber reinforced polyphenylene sulfide (PPS). PPS, being a semi-crystalline polymer, offers the potential to alter the mechanical properties of parts with changes in crystallinity. Annealing PPS at temperatures above the glass transition and below the melting point for long hours can enhance crystallinity in the material, thereby improving the mechanical properties. However, high temperature polymers such as PPS can also undergo reactions (branching and/or crosslinking) when annealed in an oxidative environment, which further influence crystallization. This work reports the effect of annealing on the changes in crystallinity, possibility of chemical reactions taking place, melt rheological properties and thermo-mechanical properties of the chosen PPS grades.

Original languageEnglish
Title of host publicationSAMPE Conference and Exhibition
EditorsKevin Ahlstrom, Jacob Preston Anderson, Scott Beckwith, Andrew Craig Becnel, Paul Joseph Biermann, Matt Buchholz, Elizabeth Cates, Brian Gardner, Jim Harris, Michael J. Knight, German Reyes-Villanueva, Stephen E. Scarborough, Phil Sears, James Thomas, Erik T. Thostenson
PublisherSoc. for the Advancement of Material and Process Engineering
ISBN (Electronic)9781934551301
DOIs
StatePublished - 2019
EventSAMPE 2019 Conference and Exhibition - Charlotte, United States
Duration: May 20 2019May 23 2019

Publication series

NameInternational SAMPE Technical Conference
Volume2019-May

Conference

ConferenceSAMPE 2019 Conference and Exhibition
Country/TerritoryUnited States
CityCharlotte
Period05/20/1905/23/19

Funding

The authors acknowledge Techmer ES for providing the materials used in this work. Research 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.

FundersFunder number
U.S. Department of Energy
Advanced Manufacturing OfficeDE-AC05-00OR22725
Office of Energy Efficiency and Renewable Energy

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