Pristine and Coated Carbon Nanotube Sheets—Characterization and Potential Applications

Author:

Giri Prakash1ORCID,Gill Irwin1,Swensgard Morgan1,Kaiser Alexandra1,Rust Audrey1,Stuparyk Brian1,Fisher Andrew1,Williams Justice1,Renoit Katie1,Kreeb Eleanor1,Lavenan Corentin1,Schulz Mark J.1

Affiliation:

1. Nanoworld Laboratories, University of Cincinnati, Cincinnati, OH 45221, USA

Abstract

A carbon nanotube (CNT) sheet is a nonwoven fabric that is being evaluated for use in different textile applications. Several properties of pristine CNT sheets and CNT sheets coated with a polysilazane sealant and coating were measured and compared in the paper. The polysilazane coating is used to reduce the shedding of CNT fibers from the sheet when the sheet is in contact with surfaces. Most fabrics show some shedding of fibers during the washing or abrasion of the fabric. This study showed that the coating reduces the shedding of fibers from CNT fabric. The coating also increased the flame resistance of the fabric. The pristine and coated sheets both have low strength but high strain to failure. The pristine and coated CNT sheet densities are 0.48 g/cc and 0.65 g/cc, respectively. The pristine CNT sheet is approximately 27 μ thick. The coated sheet is approximately 24 μ thick. The coating may have densified the sheet, making it thinner. The thickness of the compliant sheets was difficult to measure and is a source of error in the properties. Characterization results are given in this paper. The results are for comparison purposes and not to establish material properties data. Possible applications for CNT sheets are briefly discussed.

Funder

University of Cincinnati Nanoworld Laboratories

National Institute for Occupational Safety and Health through the Pilot Research Project Training Program of the University of Cincinnati, Education and Research Center

Ohio Workplace Safety Innovation Center

Publisher

MDPI AG

Reference39 articles.

1. Giri, P., Kondapalli, V.K.R., Joseph, K.M., Shanov, V., and Schulz, M. (2023). Manufacturing Scalable Carbon Nanotube–Silicone/Kevlar Fabrics. Nanomaterials, 13.

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3. (2023, November 25). Available online: https://ceas.uc.edu/research/centers-labs/nanoworld.html.

4. (2023, November 26). Polysilazane Suppliers: Hathaway Advanced Materials and Durazane®|Merck KGaA, Darmstadt, Germany (emdgroup.com). Available online: https://www.hathawayresearch.com/.

5. (2023, November 26). Available online: https://docplayer.net/32233542-Tb1-kion-polysilazane-polyureasilazane-and-kion-polysilazane-polysilazane-20-heat-curable-resins-description-uses.html.

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