FDM 3D printed MXene/Recycled carbon fibre reinforced polylactic acid composites: Interface optimization, toughening and enhanced electromagnetic shielding performance

Yunzhongze Hu, Jiafei Gu, Yang Zhang, Gongyu Liu, Xiaosu Yi, Xiaoling Liu

Research output: Journal PublicationArticlepeer-review

Abstract

Polylactic acid (PLA), a rapidly emerging bio-based plastic, faces challenges in reinforcement due to its weak mechanical properties and poor interface adhesion with carbon fibre surfaces. This study introduces an MXene/recycled carbon fibre (rCF) reinforced PLA 3D printing material, prepared through electrostatic self-assembly of MXene and recycled carbon fibre. MXene addition significantly enhances the fibre-substrate interface bonding in fibre-reinforced PLA filaments. This results in the printed parts displaying enhanced toughness, the flexural strength achieved of 105.45 MPa, modules of 5.98Gpa, and notched impact strength of 7.12 kJ/m2, realizing 15.6 %, 112.1 %, and 31.8 % improvements, respectively in comparison to pure PLA. Additionally, the modified PLA demonstrates absorption-dominated superior electromagnetic shielding performance. This research offers a viable approach for enhancing recycled carbon fibre-reinforced thermoplastic PLA and insights into designing sustainable, structurally, and functionally integrated composites.

Original languageEnglish
Article number101953
JournalComposites Communications
Volume48
DOIs
Publication statusPublished - Jun 2024

Keywords

  • EMI shielding
  • MXene
  • PLA
  • Recycled carbon fibre

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Polymers and Plastics
  • Materials Chemistry

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