• English
    • Latviešu
    • Deutsch
    • русский
  • Help
  • English 
    • English
    • Latviešu
    • Deutsch
    • русский
  • Login
View Item 
  •   DSpace Home
  • B5 – LU institūti un aģentūras / Institutes and agencies of the UL
  • Cietvielu fizikas institūts / Institute of Solid State Physics
  • Zinātniskie raksti (CFI) / Scientific articles
  • View Item
  •   DSpace Home
  • B5 – LU institūti un aģentūras / Institutes and agencies of the UL
  • Cietvielu fizikas institūts / Institute of Solid State Physics
  • Zinātniskie raksti (CFI) / Scientific articles
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Characterization of electrospun poly(lactide) composites containing multiwalled carbon nanotubes

Thumbnail
View/Open
Ristic_2019.pdf (488.0Kb)
Author
Ristić, Ivan
Miletić, Aleksandra
Vukić, Nevena
Marinović-Cincović, Milena
Smits, Krisjanis
Cakić, Suzana
Pilić, Branka
Date
2019
Metadata
Show full item record
Abstract
The main aim of this work was to obtain conductive polymer-based materials by incorporation of different amounts of multiwalled carbon nanotubes (MWCNTs) into poly(lactide)(PLA) using the electrospinning technique. Fiber-based nonwovens with 0.2, 0.5, 1, and 3 wt% of MWCNTs were characterized regarding conductivity, morphology, thermal, and mechanical properties. It was confirmed that an increase of the MWCNTs content does not influence the increase of the material conductivity, since the conductivity was 170 ohm sq−1 for all composites. Scanning electron microscopy and transmission electron microscopy analyses revealed that smooth and beadless fibers were obtained, but also average diameters of composite nanofibers decreased with the increase of the MWCNTs content. Differential scanning calorimetry analysis showed that the presence of MWCNTs in the PLA matrix had a significant influence on the crystallization behavior of PLA nanofibers, because the decrease in crystallization temperature (Tc) was detected. Also, the incorporation of MWCNTs into PLA fibers affected the melting process, enabling the generation of α′ form, while had no influence on ordered α crystal. The enthalpy of composite degradation decreased, because MWCNTs are well-known for good heat conductivity, and with that the second step of degradation slowed down, as it was confirmed by thermogravimetric analysis. The addition of MWCNTs improved mechanical properties of composite fibers and caused the increase of both elasticity and tensile strengths of nanofibers.
URI
https://dspace.lu.lv/dspace/handle/7/52545
DOI
10.1177/0892705719857780
Collections
  • Zinātniskie raksti (CFI) / Scientific articles [604]

University of Latvia
Contact Us | Send Feedback
Theme by 
@mire NV
 

 

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

View Usage Statistics

University of Latvia
Contact Us | Send Feedback
Theme by 
@mire NV