Magnetic structuring of nickel-coated carbon nanotubes with diazonium treatment for tailorable and bulk nanocomposite fabrication

Shreya Trivedi, Melissa Rudolph, James Hansell Adair, Namiko Yamamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Polymer nanocomposites are novel materials sought-after for their tailorable and advanced mechanical, electrical, thermal, and actuation/sensing properties. Desired property enhancement of nanocomposites relies on controlled distribution of nanofillers. However, it is difficult to achieve controlled distribution of nanofillers in bulk production. In this work, we experimentally investigate active nanofiller assembly using external magnetic fields, as a simple, non-contact, scalable, and energy-efficient manufacturing solution of polymer nanocomposites. Carbon nanotubes (CNTs) are selected as the nanofiller, because of their high mass-specific strength and transport properties. We first processed CNTs to make them magnetically responsive, by e-beam coating the CNT tips with nickel (Ni), after functionalizing their surfaces with oxygen plasma to promote Ni-CNT adherence. Then, we attached diazonium salt on the CNT surfaces, to improve their dispersion in and to promote covalent bonding with the bisphenol-F based epoxy matrix. CNT alignment was achieved within the viscous matrix (~70 cP), after the short (~40 min) magnetic field application of small strength (~400 G vs. ∼50 G of a typical refrigerator magnet). Further 3D tomography inspection will be conducted about CNT structuring, and associated thermal and electrical transport properties will be characterized for structure-property relationship studies in future.

Original languageEnglish (US)
Title of host publicationSAMPE Long Beach 2018 Conference and Exhibition
PublisherSoc. for the Advancement of Material and Process Engineering
Volume2018-May
ISBN (Electronic)9781934551271
StatePublished - Jan 1 2018
EventSAMPE Long Beach 2018 Conference and Exhibition - Long Beach, United States
Duration: May 21 2018May 24 2018

Other

OtherSAMPE Long Beach 2018 Conference and Exhibition
CountryUnited States
CityLong Beach
Period5/21/185/24/18

Fingerprint

Carbon Nanotubes
Nickel
Carbon nanotubes
Nanocomposites
Fabrication
Transport properties
Polymers
Magnetic fields
Refrigerators
Magnets
Tomography
Salts
Inspection
Oxygen
Plasmas
Coatings

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Trivedi, S., Rudolph, M., Adair, J. H., & Yamamoto, N. (2018). Magnetic structuring of nickel-coated carbon nanotubes with diazonium treatment for tailorable and bulk nanocomposite fabrication. In SAMPE Long Beach 2018 Conference and Exhibition (Vol. 2018-May). Soc. for the Advancement of Material and Process Engineering.
Trivedi, Shreya ; Rudolph, Melissa ; Adair, James Hansell ; Yamamoto, Namiko. / Magnetic structuring of nickel-coated carbon nanotubes with diazonium treatment for tailorable and bulk nanocomposite fabrication. SAMPE Long Beach 2018 Conference and Exhibition. Vol. 2018-May Soc. for the Advancement of Material and Process Engineering, 2018.
@inproceedings{f5758b5080a94f3a94495718b5e359d2,
title = "Magnetic structuring of nickel-coated carbon nanotubes with diazonium treatment for tailorable and bulk nanocomposite fabrication",
abstract = "Polymer nanocomposites are novel materials sought-after for their tailorable and advanced mechanical, electrical, thermal, and actuation/sensing properties. Desired property enhancement of nanocomposites relies on controlled distribution of nanofillers. However, it is difficult to achieve controlled distribution of nanofillers in bulk production. In this work, we experimentally investigate active nanofiller assembly using external magnetic fields, as a simple, non-contact, scalable, and energy-efficient manufacturing solution of polymer nanocomposites. Carbon nanotubes (CNTs) are selected as the nanofiller, because of their high mass-specific strength and transport properties. We first processed CNTs to make them magnetically responsive, by e-beam coating the CNT tips with nickel (Ni), after functionalizing their surfaces with oxygen plasma to promote Ni-CNT adherence. Then, we attached diazonium salt on the CNT surfaces, to improve their dispersion in and to promote covalent bonding with the bisphenol-F based epoxy matrix. CNT alignment was achieved within the viscous matrix (~70 cP), after the short (~40 min) magnetic field application of small strength (~400 G vs. ∼50 G of a typical refrigerator magnet). Further 3D tomography inspection will be conducted about CNT structuring, and associated thermal and electrical transport properties will be characterized for structure-property relationship studies in future.",
author = "Shreya Trivedi and Melissa Rudolph and Adair, {James Hansell} and Namiko Yamamoto",
year = "2018",
month = "1",
day = "1",
language = "English (US)",
volume = "2018-May",
booktitle = "SAMPE Long Beach 2018 Conference and Exhibition",
publisher = "Soc. for the Advancement of Material and Process Engineering",
address = "United States",

}

Trivedi, S, Rudolph, M, Adair, JH & Yamamoto, N 2018, Magnetic structuring of nickel-coated carbon nanotubes with diazonium treatment for tailorable and bulk nanocomposite fabrication. in SAMPE Long Beach 2018 Conference and Exhibition. vol. 2018-May, Soc. for the Advancement of Material and Process Engineering, SAMPE Long Beach 2018 Conference and Exhibition, Long Beach, United States, 5/21/18.

Magnetic structuring of nickel-coated carbon nanotubes with diazonium treatment for tailorable and bulk nanocomposite fabrication. / Trivedi, Shreya; Rudolph, Melissa; Adair, James Hansell; Yamamoto, Namiko.

SAMPE Long Beach 2018 Conference and Exhibition. Vol. 2018-May Soc. for the Advancement of Material and Process Engineering, 2018.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Magnetic structuring of nickel-coated carbon nanotubes with diazonium treatment for tailorable and bulk nanocomposite fabrication

AU - Trivedi, Shreya

AU - Rudolph, Melissa

AU - Adair, James Hansell

AU - Yamamoto, Namiko

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Polymer nanocomposites are novel materials sought-after for their tailorable and advanced mechanical, electrical, thermal, and actuation/sensing properties. Desired property enhancement of nanocomposites relies on controlled distribution of nanofillers. However, it is difficult to achieve controlled distribution of nanofillers in bulk production. In this work, we experimentally investigate active nanofiller assembly using external magnetic fields, as a simple, non-contact, scalable, and energy-efficient manufacturing solution of polymer nanocomposites. Carbon nanotubes (CNTs) are selected as the nanofiller, because of their high mass-specific strength and transport properties. We first processed CNTs to make them magnetically responsive, by e-beam coating the CNT tips with nickel (Ni), after functionalizing their surfaces with oxygen plasma to promote Ni-CNT adherence. Then, we attached diazonium salt on the CNT surfaces, to improve their dispersion in and to promote covalent bonding with the bisphenol-F based epoxy matrix. CNT alignment was achieved within the viscous matrix (~70 cP), after the short (~40 min) magnetic field application of small strength (~400 G vs. ∼50 G of a typical refrigerator magnet). Further 3D tomography inspection will be conducted about CNT structuring, and associated thermal and electrical transport properties will be characterized for structure-property relationship studies in future.

AB - Polymer nanocomposites are novel materials sought-after for their tailorable and advanced mechanical, electrical, thermal, and actuation/sensing properties. Desired property enhancement of nanocomposites relies on controlled distribution of nanofillers. However, it is difficult to achieve controlled distribution of nanofillers in bulk production. In this work, we experimentally investigate active nanofiller assembly using external magnetic fields, as a simple, non-contact, scalable, and energy-efficient manufacturing solution of polymer nanocomposites. Carbon nanotubes (CNTs) are selected as the nanofiller, because of their high mass-specific strength and transport properties. We first processed CNTs to make them magnetically responsive, by e-beam coating the CNT tips with nickel (Ni), after functionalizing their surfaces with oxygen plasma to promote Ni-CNT adherence. Then, we attached diazonium salt on the CNT surfaces, to improve their dispersion in and to promote covalent bonding with the bisphenol-F based epoxy matrix. CNT alignment was achieved within the viscous matrix (~70 cP), after the short (~40 min) magnetic field application of small strength (~400 G vs. ∼50 G of a typical refrigerator magnet). Further 3D tomography inspection will be conducted about CNT structuring, and associated thermal and electrical transport properties will be characterized for structure-property relationship studies in future.

UR - http://www.scopus.com/inward/record.url?scp=85050381912&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85050381912&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:85050381912

VL - 2018-May

BT - SAMPE Long Beach 2018 Conference and Exhibition

PB - Soc. for the Advancement of Material and Process Engineering

ER -

Trivedi S, Rudolph M, Adair JH, Yamamoto N. Magnetic structuring of nickel-coated carbon nanotubes with diazonium treatment for tailorable and bulk nanocomposite fabrication. In SAMPE Long Beach 2018 Conference and Exhibition. Vol. 2018-May. Soc. for the Advancement of Material and Process Engineering. 2018