Journal
COMPOSITES PART B-ENGINEERING
Volume 152, Issue -, Pages 160-168Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2018.07.005
Keywords
Polymer-matrix composites (PMCs); Nano-structures; Mechanical properties; Computational modelling; 3D printing
Funding
- London South Bank University
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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.
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