ArticlePolymers2026
Investigation of Piezoresistive Behaviors in TPMS Lattice Structures Produced with MWCNT-Reinforced PLA Filament.
Article in Polymers, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Although the piezoresistive behavior of conductive polymer composites has been widely studied, the geometry-dependent piezoresistive response of MWCNT/PLA-based TPMS lattice structures produced by fused filament fabrication (FFF) remains insufficiently explored. The primary objective of this study is to comparatively investigate the mechanical, thermal, electrical, and piezoresistive behaviors of Gyroid (G), Diamond (D), and Schwarz Primitive (P) TPMS lattice structures produced using the same material system, constant relative density, and XY printing orientation. For this purpose, a 2 wt.% multi-walled carbon nanotube (MWCNT)-reinforced polylactic acid (PLA) composite filament was fabricated via solvent mixing and used to produce the three TPMS topologies through FFF. Mechanical and electromechanical properties were assessed via Shore D hardness, monotonic compression tests, and in-situ electrical measurements using three independent replicate specimens for each topology (
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