Electrical Characterization of Nanocomposite of epoxy/CNTs

Postgraduate Thesis uoadl:2078789 317 Read counter

Unit:
Κατεύθυνση Τεχνολογίας Ολοκληρωμένων Κυκλωμάτων
Πληροφορική
Deposit date:
2017-10-31
Year:
2017
Author:
Kapetanou Dimitra
Supervisors info:
Παπαϊωάννου Γεώργιος, Καθηγητής, Τμήμα Φυσικής, ΕΚΠΑ
Αραπογιάννη Αγγελική, Καθηγητής, Τμήμα Πληροφορικής, ΕΚΠΑ
Γαρδέλης Σπυρίδων, Αναπλ. Καθηγητής, Τμήμα Φυσικής, ΕΚΠΑ
Original Title:
Μελέτη Ηλεκτρικών Ιδιοτήτων Νανοσύνθετων Υλικών Εποξικής ρητίνης/Νανοσωλήνων Άνθρακα
Languages:
Greek
Translated title:
Electrical Characterization of Nanocomposite of epoxy/CNTs
Summary:
This master thesis deals with the electrical characterization of nanocomposite materials with epoxy matrix. One special feature is tha the samples we have studied, are made using the Masterbatch method. The manufacture of the nanocomposite material by this method, firstly requires to product a large quantitation’s nanocomposite and in the next step the dilution of this with a clean polymer material, so as to acieve the desired final quantitation.
We manufactured 5 samples with various percentage of carnon nanotubes: 0%, 0.3%, 0.5%, 0.7%, 1% w/w CNTs/epoxy. To study these samples we have taken the characteristic curves of current-voltage, changing in some cases the temperatures. The purpose of this research is to find the percolation threshold (pc) for epoxy resin-based nanocomposite materials.
After the study and the comparison of all current-voltage characteristic curves, we concluded that the sample with 0.7% w/w CNTs/epoxy has the highest electrical conductivity, so we believe that the percolation threshold is close enough to 0.7%. Also, we noticed that samples with smaller percentage of CNTs than 0.7% (p
Main subject category:
Science
Keywords:
carbon nanotubes, epoxy resin, electrical properties, electrical conductivity, percolation threshold
Index:
Yes
Number of index pages:
2
Contains images:
Yes
Number of references:
86
Number of pages:
70
Master Thesis D.Kapetanou.pdf (2 MB) Open in new window