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undergraduate thesis
Kinetika kristalizacije poli(ε-kaprolaton) / ugljikove nanocjevčice kompozita
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2023. urn:nbn:hr:149:223268
Krajpl, Martina
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

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Krajpl, M. (2023). Kinetika kristalizacije poli(ε-kaprolaton) / ugljikove nanocjevčice kompozita (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:223268

Krajpl, Martina. "Kinetika kristalizacije poli(ε-kaprolaton) / ugljikove nanocjevčice kompozita." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:149:223268

Krajpl, Martina. "Kinetika kristalizacije poli(ε-kaprolaton) / ugljikove nanocjevčice kompozita." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:149:223268

Krajpl, M. (2023). 'Kinetika kristalizacije poli(ε-kaprolaton) / ugljikove nanocjevčice kompozita', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 04 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:223268

Krajpl M. Kinetika kristalizacije poli(ε-kaprolaton) / ugljikove nanocjevčice kompozita [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2023 [cited 2024 November 04] Available at: https://urn.nsk.hr/urn:nbn:hr:149:223268

M. Krajpl, "Kinetika kristalizacije poli(ε-kaprolaton) / ugljikove nanocjevčice kompozita", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:149:223268

Metadata
TitleKinetika kristalizacije poli(ε-kaprolaton) / ugljikove nanocjevčice kompozita
Title (english)Kinetics of crystallization of poly(ε-caprolactone) - carbon nanotube composites
AuthorMartina Krajpl
MentorEmi Govorčin Bajsić (mentor)
Committee memberEmi Govorčin Bajsić (predsjednik povjerenstva)
Committee memberLjerka Kratofil Krehula (član povjerenstva)
Committee memberVladimir Dananić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2023-09-22, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Područje nanotehnologije danas je jedno od najvažnijih područja istraživanja u većini tehničkih disciplina. Polimerni nanokompoziti su sustavi koji se sastoje od polimerne matrice (kontinuirana faza) i punila s najmanje jednom dimenzijom reda veličine nanometra (diskontinuirana faza). Na svojstva nanokompozita utječu svojstva polimerne matrice i svojstva punila. Svojstva punila ovise o udjelu i vrsti punila, veličini i raspodjeli punila, specifičnoj površini punila, obliku čestica te o interakcijama koje se uspostavljaju na međupovršini matrica/punilo. Zbog smanjenja dimenzije punila na nanoveličinu omogućeni su novi pomaci u istraživanjima kompozita. Cilj ovog rada je istražiti utjecaj višestjenih ugljikovih nanocjevčica (eng. multiwalled carbon nanotubes, MWCNT) na proces neizotermne kristalizacije nanokompozita (PCL/CNT) s različitim udjelom CNT. Nanokompoziti PCL/CNT s različitim udjelom CNT dobiveni su iz PCL/CNT otopine u THF-u. Toplinska karakterizacija PLC/CNT nanokompozita provedena je tehnikom diferencijalne pretražne kalorimetrije (DSC) u neizotermnim uvjetima. Iz vrijednosti očitanih iz DSC krivulja određena je energija aktivacije (Ea), polovično vrijeme kristalizacije (t1/2) i ukupno vrijeme kristalizacije (tu). Ea je određena prema Kissinger-ovom i Flynn, Wall, Ozawa (FWO) modelu.
Abstract (english)
Today, the field of nanotechnology is one of the most important areas of research in most technical disciplines. Polymer nanocomposites are systems consisting of a polymer matrix (continuous phase) and fillers with at least one nanometer-sized dimension (discontinuous phase). The properties of the nanocomposites are influenced by the properties of the polymer matrix and the properties of the filler. The properties of the filler depend on the content and type of filler, the size and distribution of the filler, the specific surface area of the filler, the shape of the particles and the interactions that are established at the matrix/filler interface. Due to the reduction of the size of the filler to the nanosize, new advances in composite research have been made possible. The aim of this study is the influence of multiwalled carbon nanotubes (MWCNT) on the non-isothermal crystallization process of PCL/CNT nanocomposites with different weight rations of MWCTN. PCL/CNT nanocomposites with different CNT content were obtained from a PCL/CNT solution in THF. The thermal characterization of the PCL/CNT nanocomposite was performed using the differential scanning technology (DSC) technique in non-isothermal conditions. From the DSC values, the activation energy (Ea), the half-time of crystallization (t1/2) and the total time of crystallization (tt) were determined. Ea was determined according to the Kissinger and Flynn, Wall, Ozawa (FWO) models.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:223268
Study programmeTitle: Materials Science and Engineering - Undergraduate study
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2023-12-01 10:48:37