Priprema TPU/nTiO2 vlakana elektropredenjem: primjena u tekstilnoj industriji

undergraduate thesis

• Title (english): Preparation of TPU/nTiO2 fibers by electrospinning:application in textile industry
• Author: Mijo Grbavac
• Mentor: Emi Govorčin Bajsić (mentor)
• Committee member: Emi Govorčin Bajsić (predsjednik povjerenstva)
• Committee member: Budimir Mijović (član povjerenstva)
• Committee member: Nina Vranješ Penava (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2015-09-15, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering; Chemical Engineering in Material Development

Abstract

Elektropredenje kao relativno novija tehnika i pojavom nanotehnologije nalazi sve veću primjenu u industriji. Razlog tome je mogućnost priprave vlakana nano dimenzija. Nanovlakna imaju bolja svojstva od vlakana dobivenih konvencionalnim metodama. Prednost elektropredenja je svestranost u primjeni u raznim područjima kao što su biosenzori, filtracija, inženjerstvo tkiva, medicina itd. Vlakna se dobivaju podvrgavanjem otopine ili taline polimera električnom polju. Najveći problem kod elektropredenja je mala količina vlakana dobivena postupkom, što čini proces izrazito dugotrajnim, te ne osobito prikladnim za industrijsku primjenu. Vlakna proizvedena elektropredenjem imaju velike prednosti uključujući veliki omjer površine i volumena, podesivu poroznost i podesivost kako bi se dobila određena funkcija za određenu primjenu. Obrađeni su parametri rada koji utječu na elektropredenje kao što su viskoznost, koncentracija, molekulska masa, napon, površinska napetost.

Abstract (english)

With the emergence of nanotechnology ,electrospinning as a relatively new technique is finding greater application in industry. Main reason is the ability to prepare fibers on nanoscale. Nanofibers have better properties than fibers prepared by conventional methods. The advantage of electrospinning is the versatility in it's application in various fields such as: biosensors, filtration, tissue engineering, medicine... Fibers are gained by applying polymer solution or melt to the electric field. The greatest problem in electrospinning is the small amount of fibers, which makes process extremely longlasting and not especially appropriate for application in industry. Fibers made by electrospinning have various advantages such as: great surface to volume ration, tunable porosity and adjustability to the certain properties for certain application. Various parameters are explained which have an effect on electrospinning such as viscosity, concentration, molecular weight, voltage, surface tension.

• Keywords: elektropredenje; nanovlakna; polimerna otopina; kolektor; napon; protok; površinska napetost; koncentracija
• Keywords (english): electrospinning; nanofibers; polymer solution; collector; voltage; flow-rate; surface tension; concentration
• Language: croatian
• URN:NBN: urn:nbn:hr:149:937429
• Study programme: Title: 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 resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2016-11-26 14:42:50