University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Probing of Polymer to Carbon Nanotube Surface Interactions within Highly Aligned Electrospun Nanofibers for Advanced Composites

King, Simon G., Terrill, Nicholas J., Goodwin, Andrew J., Stevens, Robert, Stolojan, Vlad and Silva, Ravi P. (2018) Probing of Polymer to Carbon Nanotube Surface Interactions within Highly Aligned Electrospun Nanofibers for Advanced Composites Carbon, 138. pp. 207-214.

[img] Text
Probing.docx - Accepted version Manuscript

Download (3MB)
[img] Text (Supplementary Information)
Probing - SUPP INFO.docx - Supplemental Material

Download (91kB)

Abstract

By electrospinning poly(ethylene oxide) (PEO)-blended sodium dodecyl sulfate (SDS) functionalized carbon nanotube (CNT) solutions, we engineered single- and double-walled nanotubes into highly aligned arrays. CNT alignment was measured using electron microscopy and polarised Raman spectroscopy. Mechanical tensile testing demonstrates that a CNT loading of 3.9wt% increases the ultimate tensile strength and ductility of our composites by over a factor of 3, and the Young's modulus by over a factor of 4, to ∼260MPa. Transmission electron microscopy (TEM) reveals how the aligned nanotubes provide a solid structure, preventing polymer chains from slipping, as well as polymer crystallisation structures such as ‘shish-kebabs’ forming, which are responsible for the improved mechanical properties of the composite. Differential scanning calorimetry (DSC) and small angle X-ray scattering (SAXS) reveals micellar and hexagonal columnar structures along the axis of the fibers, some of which are associated with the presence of the CNT, where these hexagonal structures are associated with the SDS functionalization on the CNT surfaces. This work demonstrates the benefits of CNT alignment within composites, revealing the effectiveness of the electrospinning technique, which enables significantly improved functionality, increasing the utility of the composites for use in many different technological areas.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
King, Simon G.simon.g.king@surrey.ac.uk
Terrill, Nicholas J.
Goodwin, Andrew J.
Stevens, Robert
Stolojan, VladV.Stolojan@surrey.ac.uk
Silva, Ravi P.S.Silva@surrey.ac.uk
Date : 14 June 2018
Funders : Engineering and Physical Sciences Research Council (EPSRC)
DOI : 10.1016/j.carbon.2018.06.019
Copyright Disclaimer : © 2018 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Depositing User : Clive Harris
Date Deposited : 13 Jun 2018 07:56
Last Modified : 15 Jun 2019 02:08
URI: http://epubs.surrey.ac.uk/id/eprint/847044

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800