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undergraduate thesis
Rastezna svojstva polimernih kompozita ojačanih lanenim vlaknima
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. urn:nbn:hr:235:958588
Dundović, Petar
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb

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Dundović, P. (2022). Rastezna svojstva polimernih kompozita ojačanih lanenim vlaknima (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:958588

Dundović, Petar. "Rastezna svojstva polimernih kompozita ojačanih lanenim vlaknima." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:235:958588

Dundović, Petar. "Rastezna svojstva polimernih kompozita ojačanih lanenim vlaknima." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:235:958588

Dundović, P. (2022). 'Rastezna svojstva polimernih kompozita ojačanih lanenim vlaknima', Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 18 February 2025, https://urn.nsk.hr/urn:nbn:hr:235:958588

Dundović P. Rastezna svojstva polimernih kompozita ojačanih lanenim vlaknima [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2022 [cited 2025 February 18] Available at: https://urn.nsk.hr/urn:nbn:hr:235:958588

P. Dundović, "Rastezna svojstva polimernih kompozita ojačanih lanenim vlaknima", Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:235:958588

Metadata
TitleRastezna svojstva polimernih kompozita ojačanih lanenim vlaknima
Title (english)Tensile properties of polymer composites reinforced with flax fibers
AuthorPetar Dundović
MentorTatjana Haramina (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2022-09-28, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Lanena i staklena vlakna imaju usporediva mehanička svojstva, no povezivanje polarnih bioloških vlakana s apolarnom polimernom matricom predstavlja problem kod prenošenja opterećenja s matrice na ojačalo. U ovom radu istražen je utjecaj vrste smole i ojačala na rastezna svojstva kompozita. Epoksidna (EP) i poliesterska smola (UP) ojačane su lanenim i staklenim vlaknima. Načinjeni su kompoziti UP/lan, UP/staklo, EP/lan te dva kompozita EP/lan/staklo slagana na način da su staklena vlakna u jednom od njih u sredini, dok su kod drugog u blizini vanjskih ploha. Rezultati ispitivanja uspoređeni su s pravilima Hrvatskog registra brodova (HRB) za kompozite ojačane staklenim vlaknima. Rastezna svojstva istraženih kompozita bolja su od minimalnih propisanih vrijednosti s izuzetkom posljednjeg hibrida kod kojeg je došlo do grešaka pri izradi. Kompozit ojačan staklenim vlaknima superioran je kompozitima s lanenim vlaknima, što pokazuje važnost dobre povezanosti matrice i ojačala. Međutim rastezna svojstva kompozita s lanenim vlaknima također su u skladu s pravilima HRB-a.
Abstract (english)
Flax and glass fibers have comparable mechanical properties, but the adhesion of polar biological fibers with an apolar polymer matrix presents a problem in transferring the load from the matrix to the reinforcement. In this work, the influence of the type of resin and reinforcement on tensile properties of composites was investigated. Epoxy (EP) and polyester resin (UP) are reinforced with flax and glass fibers. Composites UP/flax, UP/glass, EP/flax and two composites EP/flax/glass were prepared in such a way that the glass fibers in one of them are in the middle plane, while in the other they are near the outer surfaces. The test results were compared with the rules of the Croatian Register of Shipping (CRS) for composites reinforced with glass fibers. The tensile properties of the investigated composites are better than the minimum prescribed values, with the exception of the last hybrid composite, where manufacturing errors occurred. Composites reinforced with glass fibers are superior to those with flax fibers, which shows the importance of a good bonding between the matrix and the reinforcement. However, the tensile properties of composites with flax fibers are also in accordance with the CRS rules.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:958588
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2022-09-22 07:02:06