Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 183, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2019.107833
Keywords
Polymer-matrix composites (PMCs); Electrical properties; Magnetic properties; Scanning electron microscopy (SEM)
Categories
Funding
- Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province of China [2019JC-11]
- China Aerospace Science and Industry Corporation [2019-HT-XG]
- Henan University of Science and Technology
- Fundamental Research Funds for the Central Universities [310201911py010, 310201911qd003]
- School-enterprise Collaborative Innovation Fund for Graduate Students of Northwestern Polytechnical University [XQ201913]
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Polyaniline (PANI) was co-doped using dodecylbenzenesulfonic acid (DBSA) and hydrochloric acid (HCI), and few-layered Ti3C2Tx was prepared via ionic intercalation followed by sonication-assisted method. Then the Ti3C2Tx/co-doped PANI (Ti3C2Tx/c-PANI) electromagnetic interference (EMI) shielding composite films were prepared by vacuum assisted filtration. FTIR, XPS, XRD, and Raman indicated that c-PANI was successfully synthesized. XRD, SEM, AFM, and TEM revealed the successful preparation of few-layered Ti3C2Tx. The electrical conductivity, EMI shielding effectiveness (EMI SE), and tensile strength of the Ti3C2Tx/c-PANI EMI shielding composite films were all increased with increasing the mass fraction of Ti3C2Tx. When the mass ratio of Ti3C2Tx to c-PANI was 7:1, the thickness of Ti3C2Tx/c-PANI composite film was only 40 mu m. And the corresponding electrical conductivity, EMI SE, and tensile strength were significantly enhanced to 24.4 S/cm, 36 dB, and 19.9 MPa, which were 81, 2.3, and 7.7 times those of pure c-PANI film (0.3 S/cm, 16 dB, and 2.6 MPa), respectively. Our fabricated Ti3C2Tx/c-PANI EMI shielding composite films present potential applications in the high-tech fields with demand for ultrathin, lightweight, and flexible EMI shielding materials.
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