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Highly flexible, light-weight and mechanically enhanced (Mo2C/PyC)f fabrics for efficient electromagnetic interference shielding

Fan, Xiaomeng ; Zhang, Ying ; Xu, Hailong ; Hou, Zexin ; Liu, Xingmin ; Riedel, Ralf (2020):
Highly flexible, light-weight and mechanically enhanced (Mo2C/PyC)f fabrics for efficient electromagnetic interference shielding.
In: Composites Part A: Applied Science and Manufacturing, 136, p. 105955. Elsevier, ISSN 1359-835X, e-ISSN 1878-5840,
DOI: 10.1016/j.compositesa.2020.105955,
[Article]

Abstract

Highly flexible, light-weight, and mechanically enhanced Mo2C modified PyC fiber (Mo2C/PyC) f fabrics with excellent electromagnetic interference shielding effectiveness (EMI SE) and enhanced mechanical strength were prepared via precursor infiltration and pyrolysis (PIP) method. The introduction of Mo2C significantly improved the EMI SE and tensile strength of the resultant fabrics compared to the control test sample (PyCf fabrics) prepared under identical conditions. At the thickness of 0.5mm, the EMI SE of the resultant (Mo2C/PyC)(f) fabrics can reach 40.7 dB compared with 14.0 dB of PyCf fabrics while the tensile strength increased to 5.63 +/- 0.16 MPa compared to 0.73 +/- 0.10 MPa of pristine PyCf fabrics. When the thickness of the resultant sample increased to 1.5 mm, the EMI SE in the X band was analyzed up to 60.0 dB with a mean value of 51.2 dB.

Item Type: Article
Erschienen: 2020
Creators: Fan, Xiaomeng ; Zhang, Ying ; Xu, Hailong ; Hou, Zexin ; Liu, Xingmin ; Riedel, Ralf
Title: Highly flexible, light-weight and mechanically enhanced (Mo2C/PyC)f fabrics for efficient electromagnetic interference shielding
Language: English
Abstract:

Highly flexible, light-weight, and mechanically enhanced Mo2C modified PyC fiber (Mo2C/PyC) f fabrics with excellent electromagnetic interference shielding effectiveness (EMI SE) and enhanced mechanical strength were prepared via precursor infiltration and pyrolysis (PIP) method. The introduction of Mo2C significantly improved the EMI SE and tensile strength of the resultant fabrics compared to the control test sample (PyCf fabrics) prepared under identical conditions. At the thickness of 0.5mm, the EMI SE of the resultant (Mo2C/PyC)(f) fabrics can reach 40.7 dB compared with 14.0 dB of PyCf fabrics while the tensile strength increased to 5.63 +/- 0.16 MPa compared to 0.73 +/- 0.10 MPa of pristine PyCf fabrics. When the thickness of the resultant sample increased to 1.5 mm, the EMI SE in the X band was analyzed up to 60.0 dB with a mean value of 51.2 dB.

Journal or Publication Title: Composites Part A: Applied Science and Manufacturing
Journal volume: 136
Publisher: Elsevier
Uncontrolled Keywords: Electrical properties; PIP; Fabrics; Mechanical properties CARBON NANOTUBES; GRAPHENE FOAM; COMPOSITE; NANOCOMPOSITES; MO2C; LIGHT
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids
Date Deposited: 06 Jul 2020 06:13
DOI: 10.1016/j.compositesa.2020.105955
Official URL: https://www.sciencedirect.com/science/article/pii/S1359835X2...
Projects: National Natural Science Foundation of China, Grant Number 51332004, National Natural Science Foundation of China, National Science Fund for Distinguished Young Scholars, Grant Number 51725205, Technische Universitat Darmstadt
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