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master's thesis
Priprema PCL/n TiO2 vlakana tehnikom elektropredenja
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. urn:nbn:hr:149:012481
Puljić, Dajana
University of Zagreb
Faculty of Chemical Engineering and Technology

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

Cite this document

Puljić, D. (2015). Priprema PCL/n TiO2 vlakana tehnikom elektropredenja (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:012481

Puljić, Dajana. "Priprema PCL/n TiO2 vlakana tehnikom elektropredenja." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:012481

Puljić, Dajana. "Priprema PCL/n TiO2 vlakana tehnikom elektropredenja." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:012481

Puljić, D. (2015). 'Priprema PCL/n TiO2 vlakana tehnikom elektropredenja', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 27 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:012481

Puljić D. Priprema PCL/n TiO2 vlakana tehnikom elektropredenja [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2015 [cited 2024 December 27] Available at: https://urn.nsk.hr/urn:nbn:hr:149:012481

D. Puljić, "Priprema PCL/n TiO2 vlakana tehnikom elektropredenja", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:149:012481

Metadata
TitlePriprema PCL/n TiO2 vlakana tehnikom elektropredenja
Title (english)Preparation of PCL /n TiO2 fibers by electrospinning technique
AuthorDajana Puljić
MentorEmi Govorčin Bajsić (mentor)
Committee memberEmi Govorčin Bajsić (predsjednik povjerenstva)
Committee memberBudimir Mijović (član povjerenstva)
Committee memberNina Vranješ Penava (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2015-07-16, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
Elektropredenje je postupak priprave nanovlakana iz mlaza kapljevine u elektrostatičkom polju. Tehnikom elektropredenja moguće je proizvesti kontinuirana vlakana nanometarskih dimenzija iz različitih vrsta polimera. Mikro- i nano-strukturirani vlaknasti mat na osnovi polikaprolaktona (PCL) u koji su dodane mikro- i nano-čestice TiO2 te titanijeve nanocijevi u udjelu od 0,5 mas % pripravljene su postupkom elektropredenja iz otopine dobivene otapanjem PCL-a u otapalima N, N-dimetilformamidu i tetrahidrofuranu (THF:DMF, 1:1). Elektropredenje vlakna provedeno je pri protoku otopine od 1 ml / h pri 18 kV i udaljenosti između igle i kolektora od 15 cm, pri T = 16,8 °C i relativnoj vlažnosti od 27%. Vlaknasti mat karakteriziran je prije i poslije UV zračenja primjenom diferencijalne pretražne kalorimetrije (DSC), termogravimetrijske analize (TGA), pretražne elektronske mikroskopije (SEM) i infracrvene spektroskopije s Fourierovom transformacijom (FTIR).
Abstract (english)
Electrospinning is an efficient procedure for nanofibers fabrication from a liquid jet through a nozzle under the electrostatic field. It is possible to produce continuous fibers from different types of polymers at the nanometer scale by electrospinning technique. Micro- and nano-structured nonwoven mates based on polycaprolactone (PCL), containing concentrations of 0,5 wt% of micro-and nano-particles TiO2 as well as titanate nanotubes were prepared by electrospinning a polymer tetrahydrofuran/N,Ndimethylformamide (THF:DMF, 1:1) solution. Electrospun PCL/TiO2 nonwoven mates were produced using 1 ml/h solution flow rate, a 18 kV potential and 15 cm distance between the needle tip and the collector. The nonwoven mates were characterized before and 5 and 10 days of UV degradation by differential scanning calorimetry (DSC),thermogravimetric analysis (TGA), Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR).
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:012481
Study programmeTitle: Applied Chemistry - Graduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry
Course: Advanced materials and technologies
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra primijenjene kemije (magistar/magistra primijenjene kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2017-03-03 12:47:56