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undergraduate thesis
Utjecaj dodatka punila na viskoznost polimerne taljevine
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. urn:nbn:hr:149:697114
Sušac, Kristina
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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Sušac, K. (2018). Utjecaj dodatka punila na viskoznost polimerne taljevine (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:697114

Sušac, Kristina. "Utjecaj dodatka punila na viskoznost polimerne taljevine." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:149:697114

Sušac, Kristina. "Utjecaj dodatka punila na viskoznost polimerne taljevine." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:149:697114

Sušac, K. (2018). 'Utjecaj dodatka punila na viskoznost polimerne taljevine', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 30 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:697114

Sušac K. Utjecaj dodatka punila na viskoznost polimerne taljevine [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2018 [cited 2024 November 30] Available at: https://urn.nsk.hr/urn:nbn:hr:149:697114

K. Sušac, "Utjecaj dodatka punila na viskoznost polimerne taljevine", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:149:697114

Metadata
TitleUtjecaj dodatka punila na viskoznost polimerne taljevine
Title (english)The effect of filler addition on the viscosity of polymer melt
AuthorKristina Sušac
MentorDomagoj Vrsaljko (mentor)
Committee memberDomagoj Vrsaljko (predsjednik povjerenstva)
Committee memberMirela Leskovac (član povjerenstva)
Committee memberZrinka Buhin Šturlić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2018-09-17, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
U ovom radu ispitan je utjecaj dodatka punila na viskoznost polimerne taljevine. U poliolefine (polipropilen i polietilen visoke gustoće) dodane su tri vrste punila, precipitirani kalcijev karbonat (Socal U1), precipitirani kalcijev karbonat predobrađen stearinskom kiselinom (Socal U1S2) i titanijev dioksid (P25). Punila su dodana u tri različita masena udjela te se mjerila brzina masenog protoka taljevine (eng. Melt flow rate, MFR) u odnosu na MFR polimernih granula i referentnih uzoraka pri različitim temperaturama. Određivanjem MFR vrijednosti dobivena je vrijednost viskoznosti ispitivanih uzoraka budući da su te dvije veličine obrnuto proporcionalne. Temeljna ideja rada je praćenje viskoznosti polimernih kompozita s povećanjem udjela različitih punila na tri temperature. Iz dobivenih rezultata potvrđeno je kako povišenje temperature smanjuje viskoznost polimerne taljevine. Korištena punila različito utječu na viskoznost polimerne taljevine. Najveće ravnomjerno povećanje viskoznosti kako se povećava maseni udio punila primijećeno je kod polietilenskog kompozita gdje je dispergirano punilo TiO2 P25. Najmanja razlika u promjeni viskoznosti oba poliolefinska kompozita u odnosu na referentni uzorak primijećena je dodatkom punila CaCO3 Socal U1S2 gdje prisutna stearinska kiselina slabi interakcije između punila i polimera.
Abstract (english)
This study studied the effect of filler addition on the viscosity of polymeric melts. Three types for fillers – precipitated calcium carbonate (Socal U1), precipitated calcium carbonate pretreated with stearic acid (Socal U1S2), and titanium dioxide (P25) – were added to the polyolefins (polypropylene and high-density polyethylene). The fillers were added in three different mass fractions and their melt flow rate (MFR) was observed and compared to the MFR of polymer granules and of the reference samples at different temperatures. Determining the MFR values helped determine the viscosity of the tested samples since the two values are reversely proportional. Main focus of the study was observing the change in viscosity of the polymeric components as the mass fraction of the different fillers was increased at three temperatures. The results confirmed that increased temperature decreases the viscosity of the polymeric melt. Different fillers had different effects on the viscosity of the polymeric melt. Greatest increase in viscosity with increased filler mass fraction was observed in the polyethylene composite with TiO2 P25 filler. The smallest difference in the change of viscosity of both polyolefin composites in comparison to the reference samples was observed after the addition of CaCO3 Socal U1S2 filler treated with stearic acid.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:697114
ProjectNumber: UIP-2014-09-3154
Title: Razvoj materijala za 3D tiskanje mikroreaktora
Title: Development of materials for 3D printing of microreactors
Acronym: 3Dmicroreactors
Leader: Domagoj Vrsaljko
Jurisdiction: Croatia
Funder: HRZZ
Funding stream: UIP
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 on2022-05-10 10:46:52