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master's thesis
Utjecaj udjela katalizatora na mehanička svojstva kabelske izolacije
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. urn:nbn:hr:149:301080
Rajić, Ivona
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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Rajić, I. (2020). Utjecaj udjela katalizatora na mehanička svojstva kabelske izolacije (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:301080

Rajić, Ivona. "Utjecaj udjela katalizatora na mehanička svojstva kabelske izolacije." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:301080

Rajić, Ivona. "Utjecaj udjela katalizatora na mehanička svojstva kabelske izolacije." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:301080

Rajić, I. (2020). 'Utjecaj udjela katalizatora na mehanička svojstva kabelske izolacije', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 03 July 2024, https://urn.nsk.hr/urn:nbn:hr:149:301080

Rajić I. Utjecaj udjela katalizatora na mehanička svojstva kabelske izolacije [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2020 [cited 2024 July 03] Available at: https://urn.nsk.hr/urn:nbn:hr:149:301080

I. Rajić, "Utjecaj udjela katalizatora na mehanička svojstva kabelske izolacije", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:149:301080

Metadata
TitleUtjecaj udjela katalizatora na mehanička svojstva kabelske izolacije
Title (english)Influence of the catalyst content on the mechanical properties of the cable isolation
AuthorIvona Rajić
MentorEmi Govorčin Bajsić (mentor)
Committee memberEmi Govorčin Bajsić (predsjednik povjerenstva)
Committee memberLjerka Kratofil Krehula (član povjerenstva)
Committee memberNevenka Vrbos (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2020-06-30, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Umreženi polietilen sve više se upotrebljava u sustavu izolacije kabela prvenstveno zbog svojih dobrih mehaničkih i toplinskih svojstava. Izolacija od umreženog polietilena pokazuje dobru postojanost na vanjske čimbenike, dobar je izolacijski materijal te može podnijeti dosta visoke temperature a da ne dođe do razgradnje same izolacije (do 250 °C). U radu je istražen utjecaj dodatka katalizatora na svojstva izolacijskih smjesa. Svi uzorci dobiveni su postupkom ekstrudiranja pri različitim uvjetima. Jedan dio dobivenih uzoraka stavljao se u vodenu kupelj na 70 °C u kojoj su stajali 4 h kako bi se umrežavanje polietilena provelo do kraja, dok je drugi dio uzoraka ostavljen na zraku, te se pratilo kako polietilen umrežuje pod djelovanjem sunca. Mjerenje za uzorke ostavljene na zraku provodilo se svakih 7 dana tijekom 28 dana. Svojstva dobivenih uzoraka karakterizirala su se sljedećim tehnikama: Hot set testom pri 200 i 250 °C, mehaničkom kidalicom gdje se pratilo maksimalno naprezanje i istezanje te određivanjem sadržaja gela pomoću kojega se određivao udio umreženog polietilena. Iz dobivenih rezultata zaključeno je da je najbolji sustav i omjer osnovnog materijala i katalizatora za izolaciju 95% SXI008 + 5% CM009, dok je za plašt najpogodniji sustav i omjer osnovnog materijala i katalizatora 96,92% SXG011 + 2,08% CM010 + 1% IQAP BLACK.
Abstract (english)
Cross-linked polyethylene is increasingly used in cable insulation systems primarily due to its good mechanical and thermal properties. Cross-linked polyethylene insulation shows good resistance to external factors, a good insulation material can withstand a high temperature without degradation of the insulation itself (up to 250 °C). In this work the influence of additional catalysts on the insulation was investigate. All samples are prepared by extrusion at different conditions. One part of the samples is placed in a water bath at 70 °C for 4 hours to complete the crosslinking of polyethylene, while the other part of the samples was left on the air, and it was measured degree of crosslinking of polyethylene under the action of the sun. Measurement for samples left in the air was performed every 7 days for 28 days. The properties of the obtained samples were characterized as following: Hot set test at 200 and 250 °C, mechanical ripper where the maximum strain are monitored and determination of the gel content by which the content of crosslinked polyethylene is determined. From the obtained results it was concluded that the best system and ratio of base material and catalyst for insulation is 95% SXI008 + 5% CM009, while for the mantle is the best system and ratio of base materials and catalyst is 96.92% SXG011 + 2.08% CM010 + 1 % IQAP BLACK.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:301080
Study programmeTitle: Materials Science and Engineering - Graduate study
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2020-06-30
Terms of useLicence In copyright icon
Created on2022-04-13 12:35:33