Affiliation:
1. School of Textile and Garment, Anhui Polytechnic University, Wuhu 241000, China
2. Anhui Province International Cooperation Research Center of Textile Structure Composite Materials, Anhui Polytechnic University, Wuhu 241000, China
Abstract
High-performance electromagnetic interference (EMI) shielding materials with ultralow density and environment-friendly properties are greatly demanded to address electromagnetic radiation pollution. Herein, carbon nanotube/polylactic acid (CNT/PLA) materials with different CNT contents, which exhibit characteristics of light weight, environmental protection and good chemical stability, are fabricated using 3D printing technology, where CNTs are evenly distributed and bind well with PLA. The performances of 3D-printed CNT/PLA composites are improved compared to pure 3D-printed PLA composites, which include mechanical properties, conductive behaviors and electromagnetic interference (EMI) shielding. The EMI shielding effectiveness (SE) of CNT/PLA composites could be improved when the content of CNTs increase. When it reaches 15 wt%, the EMI SE of 3D-printed CNT/PLA composites could get up to 47.1 dB, which shields 99.998% of electromagnetic energy. Meanwhile, the EMI shielding mechanism of 3D-printed CNT/PLA composites is mainly of absorption loss, and it generally accounts for more than 80% of the total shielding loss. These excellent comprehensive performances endow a 3D-printed CNT/PLA composite with great potential for use in industrial and aerospace areas.
Funder
Youth Fund Project of Anhui Natural Science Foundation
Initiating Research Fund for Talent Introduction of Anhui Polytechnic University
University-level scientific research project of Anhui Polytechnic University
Undergraduate top-notch talent training program of Anhui Polytechnic University
Anhui Polytechnic University Scientific Research Project
Advanced Fiber Materials Engineering Research Center of Anhui Province Project
Subject
Polymers and Plastics,General Chemistry
Cited by
2 articles.
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