The influence of nanostructure on the mechanical properties of 3D printed polylactide/nanoclay composites

Journal article

Paspali, A, Bao, Y, Gawne, D, Piestert, F and Reinelt, S (2018). The influence of nanostructure on the mechanical properties of 3D printed polylactide/nanoclay composites. Composites Part B: Engineering. 152, pp. 160-168. https://doi.org/10.1016/j.compositesb.2018.07.005
AuthorsPaspali, A, Bao, Y, Gawne, D, Piestert, F and Reinelt, S
Abstract

An obstacle for wider application of 3D printed parts is their inferior mechanical performance compared with those from conventional fabrication. This research aims to overcome this deficiency by developing nanostructured PLA/clay composite filaments that are 3D printable by the FFF technique, investigating the effect of filament composition on mechanical properties, and correlating it with the extent of intercalation of different types of clay. The results showed the addition of 5 wt% organomodified clay to PLA raised the elastic and flexural modulus by 10% and 14% respectively. Einstein’s composite theory did not hold for the PLA/organoclay composites but the Halpin-Tsai model was successful in interpreting the measured moduli of the organoclays. The model also showed that increasing the clay intercalation was much more effective than raising the total clay content.

KeywordsA. Polymer-matrix composites (PMCs),; A. Nano-structures,; B. Mechanical properties, C. Computational modelling;3D printing; 09 Engineering; Materials
Year2018
JournalComposites Part B: Engineering
Journal citation152, pp. 160-168
Digital Object Identifier (DOI)https://doi.org/10.1016/j.compositesb.2018.07.005
Publication dates
Print01 Nov 2018
Publication process dates
Deposited30 Aug 2018
Accepted10 Jul 2018
Accepted author manuscript
License
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Open
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