Polymer Coating of Carbon Nanotube Fibers for Electric Microcables
Carbon nanotubes (CNTs) are considered the most promising candidates to replace Cu and Al in a large number of electrical, mechanical and thermal applications. Although most CNT industrial applications require macro and micro size CNT fiber assemblies, several techniques to make conducting CNT fiber...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2014-11-01
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| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2079-4991/4/4/879 |
| _version_ | 1811259399411335168 |
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| author | Noe T. Alvarez Timothy Ochmann Nicholas Kienzle Brad Ruff Mark R. Haase Tracy Hopkins Sarah Pixley David Mast Mark J. Schulz Vesselin Shanov |
| author_facet | Noe T. Alvarez Timothy Ochmann Nicholas Kienzle Brad Ruff Mark R. Haase Tracy Hopkins Sarah Pixley David Mast Mark J. Schulz Vesselin Shanov |
| author_sort | Noe T. Alvarez |
| collection | DOAJ |
| description | Carbon nanotubes (CNTs) are considered the most promising candidates to replace Cu and Al in a large number of electrical, mechanical and thermal applications. Although most CNT industrial applications require macro and micro size CNT fiber assemblies, several techniques to make conducting CNT fibers, threads, yarns and ropes have been reported to this day, and improvement of their electrical and mechanical conductivity continues. Some electrical applications of these CNT conducting fibers require an insulating layer for electrical insulation and protection against mechanical tearing. Ideally, a flexible insulator such as hydrogenated nitrile butadiene rubber (HNBR) on the CNT fiber can allow fabrication of CNT coils that can be assembled into lightweight, corrosion resistant electrical motors and transformers. HNBR is a largely used commercial polymer that unlike other cable-coating polymers such as polyvinyl chloride (PVC), it provides unique continuous and uniform coating on the CNT fibers. The polymer coated/insulated CNT fibers have a 26.54 μm average diameter—which is approximately four times the diameter of a red blood cell—is produced by a simple dip-coating process. Our results confirm that HNBR in solution creates a few microns uniform insulation and mechanical protection over a CNT fiber that is used as the electrically conducting core. |
| first_indexed | 2024-04-12T18:30:48Z |
| format | Article |
| id | doaj.art-2db3b13acfb14ccba95c80712616fb9b |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-04-12T18:30:48Z |
| publishDate | 2014-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-2db3b13acfb14ccba95c80712616fb9b2022-12-22T03:21:05ZengMDPI AGNanomaterials2079-49912014-11-014487989310.3390/nano4040879nano4040879Polymer Coating of Carbon Nanotube Fibers for Electric MicrocablesNoe T. Alvarez0Timothy Ochmann1Nicholas Kienzle2Brad Ruff3Mark R. Haase4Tracy Hopkins5Sarah Pixley6David Mast7Mark J. Schulz8Vesselin Shanov9Nanoworld Laboratories, University of Cincinnati, Cincinnati, OH 45221, USAChemical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45221, USAChemical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45221, USAMechanical Engineering and School of Dynamics, University of Cincinnati, Cincinnati, OH 45221, USAChemical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45221, USACollege of Medicine, University of Cincinnati, Cincinnati, OH 45221, USACollege of Medicine, University of Cincinnati, Cincinnati, OH 45221, USAPhysics Department, University of Cincinnati, Cincinnati, OH 45221, USAMechanical Engineering and School of Dynamics, University of Cincinnati, Cincinnati, OH 45221, USANanoworld Laboratories, University of Cincinnati, Cincinnati, OH 45221, USACarbon nanotubes (CNTs) are considered the most promising candidates to replace Cu and Al in a large number of electrical, mechanical and thermal applications. Although most CNT industrial applications require macro and micro size CNT fiber assemblies, several techniques to make conducting CNT fibers, threads, yarns and ropes have been reported to this day, and improvement of their electrical and mechanical conductivity continues. Some electrical applications of these CNT conducting fibers require an insulating layer for electrical insulation and protection against mechanical tearing. Ideally, a flexible insulator such as hydrogenated nitrile butadiene rubber (HNBR) on the CNT fiber can allow fabrication of CNT coils that can be assembled into lightweight, corrosion resistant electrical motors and transformers. HNBR is a largely used commercial polymer that unlike other cable-coating polymers such as polyvinyl chloride (PVC), it provides unique continuous and uniform coating on the CNT fibers. The polymer coated/insulated CNT fibers have a 26.54 μm average diameter—which is approximately four times the diameter of a red blood cell—is produced by a simple dip-coating process. Our results confirm that HNBR in solution creates a few microns uniform insulation and mechanical protection over a CNT fiber that is used as the electrically conducting core.http://www.mdpi.com/2079-4991/4/4/879carbon nanotubes (CNTs)coatingdopingmicrocabledensification |
| spellingShingle | Noe T. Alvarez Timothy Ochmann Nicholas Kienzle Brad Ruff Mark R. Haase Tracy Hopkins Sarah Pixley David Mast Mark J. Schulz Vesselin Shanov Polymer Coating of Carbon Nanotube Fibers for Electric Microcables Nanomaterials carbon nanotubes (CNTs) coating doping microcable densification |
| title | Polymer Coating of Carbon Nanotube Fibers for Electric Microcables |
| title_full | Polymer Coating of Carbon Nanotube Fibers for Electric Microcables |
| title_fullStr | Polymer Coating of Carbon Nanotube Fibers for Electric Microcables |
| title_full_unstemmed | Polymer Coating of Carbon Nanotube Fibers for Electric Microcables |
| title_short | Polymer Coating of Carbon Nanotube Fibers for Electric Microcables |
| title_sort | polymer coating of carbon nanotube fibers for electric microcables |
| topic | carbon nanotubes (CNTs) coating doping microcable densification |
| url | http://www.mdpi.com/2079-4991/4/4/879 |
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