Article in Additive Manufacturing on high-performance plastics

Centre for Computational Physics

Our article “Understanding mechanical properties in fused filament fabraction of polyether-ether-ketone” has now been published in Additive Manufacturing. This work is in collaboration with the University of Nottingham.

Understanding mechanical properties in fused filament fabrication of poly-ether-ether-ketone

Jing Pu, Claire McIlroy, Arthur Jones, Ian Ashcroft

Abstract Using dynamic mechanical analysis (DMA), we investigate differences in the mechanical properties of a single-filament wall of polyether ether ketone (PEEK) constructed using fused filament fabrication (FFF) under a range of different printing conditions. Since PEEK is a semi-crystalline polymer, we employ a non-isothermal quiescent crystallization model, informed by infra-red (IR)-imaging measurements, to understand our findings. We propose that, under typical FFF cooling conditions, the weld region between filaments remains amorphous. In contrast, the core of the filament has increased time above the glass transition temperature allowing for a significant crystal fraction to develop. We correlate the predicted crystal fraction to…

View original post 84 more words

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

© School of Mathematics and Physics, University of Lincoln, Brayford Pool, Lincoln, LN6 7TS, United Kingdom
%d bloggers like this: