TUHH Open Research
Help
  • Log In
    New user? Click here to register.Have you forgotten your password?
  • English
  • Deutsch
  • Communities & Collections
  • Publications
  • Research Data
  • People
  • Institutions
  • Projects
  • Statistics
  1. Home
  2. TUHH
  3. Publications
  4. Influence of carbon nanoparticle modification on the mechanical and electrical properties of epoxy in small volumes
 
Options

Influence of carbon nanoparticle modification on the mechanical and electrical properties of epoxy in small volumes

Citation Link: https://doi.org/10.15480/882.1927
Publikationstyp
Journal Article
Date Issued
2017-07-25
Sprache
English
Author(s)
Leopold, Christian  orcid-logo
Augustin, Till  orcid-logo
Schwebler, Thomas  
Lehmann, Jonas  
Liebig, Wilfried V.  orcid-logo
Fiedler, Bodo  orcid-logo
Institut
Kunststoffe und Verbundwerkstoffe M-11  
TORE-DOI
10.15480/882.1927
TORE-URI
http://tubdok.tub.tuhh.de/handle/11420/1930
Journal
Journal of colloid and interface science  
Volume
506
Start Page
620
End Page
632
Citation
Journal of colloid and interface science (506): 620-632 (2017)
Publisher DOI
10.1016/j.jcis.2017.07.085
Scopus ID
2-s2.0-85026393969
Publisher
Elsevier
The influence of nanoparticle morphology and filler content on the mechanical and electrical properties of carbon nanoparticle modified epoxy is investigated regarding small volumes. Three types of particles, representing spherical, tubular and layered morphologies are used. A clear size effect of increasing true failure strength with decreasing volume is found for neat and carbon black modified epoxy. Carbon nanotube (CNT) modified epoxy exhibits high potential for strength increase, but dispersion and purity are critical. In few layer graphene modified epoxy, particles are larger than statistically distributed defects and initiate cracks, counteracting any size effect. Different toughness increasing mechanisms on the nano- and micro-scale depending on particle morphology are discussed based on scanning electron microscopy images. Electrical percolation thresholds in the small volume fibres are significantly higher compared to bulk volume, with CNT being found to be the most suitable morphology to form electrical conductive paths. Good correlation between electrical resistance change and stress strain behaviour under tensile loads is observed. The results show the possibility to detect internal damage in small volumes by measuring electrical resistance and therefore indicate to the high potential for using CNT modified polymers in fibre reinforced plastics as a multifunctional, self-monitoring material with improved mechanical properties.
Subjects
damage mechanisms
fractography
percolation behaviour
sensing
structural health monitoring
true failure strength
damage mechanism
DDC Class
620: Ingenieurwissenschaften
Lizenz
https://creativecommons.org/licenses/by/4.0/
Loading...
Thumbnail Image
Name

1-s2.0-S0021979717308524-main.pdf

Size

3.13 MB

Format

Adobe PDF

TUHH
Weiterführende Links
  • Contact
  • Send Feedback
  • Cookie settings
  • Privacy policy
  • Impress
DSpace Software

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science
Design by effective webwork GmbH

  • Deutsche NationalbibliothekDeutsche Nationalbibliothek
  • ORCiD Member OrganizationORCiD Member Organization
  • DataCiteDataCite
  • Re3DataRe3Data
  • OpenDOAROpenDOAR
  • OpenAireOpenAire
  • BASE Bielefeld Academic Search EngineBASE Bielefeld Academic Search Engine
Feedback