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  • Towards optimized carbon nanotubes (CNTs) reinforced polyetherimide (PEI) 3D printed structures: A comparative study on testing standards

Yıldız, Alptekin, Emanetoğlu, Uğur, Ozden Yenigun, Elif and Cebeci, Hulya, 2022, Journal Article, Towards optimized carbon nanotubes (CNTs) reinforced polyetherimide (PEI) 3D printed structures: A comparative study on testing standards Composite Structures, 296. pp. 1-20. ISSN 0263-8223

Abstract or Description:

Tailoring the properties of high-performance polymers through reinforcing will bring multifunctionality and expand their use in additive manufacturing (AM). However, machine and material-based challenges exist, eventually resulting in low-quality end products. When expensive polymers are considered, it is still challenging to tailor their properties and print them for high-quality multifunctional structures. Here, polymer composites of polyetherimide (PEI) and carbon nanotubes (CNTs) with varying CNT weight fractions are produced in filament form by melt-processing. Neat PEI, 1 wt% and 3 wt% CNTs/PEI are additively manufactured in two different raster orientations (Rectilinear and Concentric), and two most proposed testing geometries, ASTM D638 and D3039. Through effective melt-processing, CNT-reinforced PEI filaments were achieved, printing parameters and testing protocols were discussed. As a result, ASTM D3039 showed superior coherence with filaments’ mechanical properties. Moreover, based on failure modes, ASTM D3039 provided better compatibility to AM, owing to its simple rectangular form yielding well-adhered layers.

Official URL: https://www.sciencedirect.com/science/article/pii/...
Subjects: Creative Arts and Design > W200 Design studies > W230 Clothing/Fashion Design > W231 Textile Design
School or Centre: School of Design
Identification Number or DOI: https://doi.org/10.1016/j.compstruct.2022.115853
Uncontrolled Keywords: Carbon nanotubes; PEI nanocomposite; Additive manufacturing; Mechanical properties and standards; Multifunctionality
SWORD Depositor: Unnamed user with username publicationrouter
Date Deposited: 20 Jun 2022 12:18
Last Modified: 01 Jul 2022 11:22
URI: https://researchonline.rca.ac.uk/id/eprint/5064
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