Sharma, Sushant and Kumar, Vipin and Pathak, Abhishek K. and Yokozeki, Tomohiro and Yadav, Shailesh Kumar and Singh, Vidya Nand and Dhakate, S. R. and Singh, Bhanu Pratap (2018) Design of MWCNT bucky paper reinforced PANI-DBSA-DVB composites with superior electrical and mechanical properties. Journal of Materials Chemistry C, 6 (45). pp. 12396-12406. ISSN 2050-7526

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Abstract

High-strength conducting polymer composites are in high demand in modern aerospace and automobile industries. Therefore, a thermosetting conducting polymer system, polyaniline (PANI) doped with dodecylbenzenesulfonic acid (DBSA) interconnected with divinylbenzene (DVB), has been used to design high-loading multiwalled carbon nanotube (MWCNT)-reinforced composites. Herein, MWCNTs were used on a macroscale in the form of bucky paper (BP) and as secondary reinforcement in the matrix system. The mechanical and electrical properties of the resultant BP reinforced PANI-DBSA-DVB (PDD) composites were investigated. The maximum flexural strength and storage modulus were 45.8 MPa and 18.5 GPa, obtained in 16ply MWCNT BP composite with 0.05 wt% dispersed MWCNT (16ply0.05), representing overall improvements of approximate to 48.2% and approximate to 55.4%, respectively, compared with the neat PDD matrix system. The maximum in-plane and through-plane electrical conductivities of the 16ply0.05 composite were 39.5 and 1.4 S cm(-1), which were three and two orders of magnitude higher, respectively, compared with those of neat PDD matrix. This high electrical conductivity resulted in a maximum electromagnetic power loss of -37.5 dBm for the 16Ply0.05 composite, which represented an overall improvement of approximate to 231% over the neat PDD system. Furthermore, the effect of secondary phase of MWCNTs was investigated using FT-IR, UV-Vis, and DSC analyses.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Royal Society of Chemistry.
Subjects:	Materials Science Physics
Divisions:	UNSPECIFIED
Depositing User:	Mr. Yogesh Joshi
Date Deposited:	23 Aug 2019 07:40
Last Modified:	23 Aug 2019 07:40
URI:	http://npl.csircentral.net/id/eprint/3982

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