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master's thesis
Primjena IC termografije pri očvršćivanju poliestera u modelnim kalupima
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. urn:nbn:hr:149:781767
Koštić, Ante
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

Koštić, A. (2019). Primjena IC termografije pri očvršćivanju poliestera u modelnim kalupima (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:781767

Koštić, Ante. "Primjena IC termografije pri očvršćivanju poliestera u modelnim kalupima." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:781767

Koštić, Ante. "Primjena IC termografije pri očvršćivanju poliestera u modelnim kalupima." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2019. https://urn.nsk.hr/urn:nbn:hr:149:781767

Koštić, A. (2019). 'Primjena IC termografije pri očvršćivanju poliestera u modelnim kalupima', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 22 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:781767

Koštić A. Primjena IC termografije pri očvršćivanju poliestera u modelnim kalupima [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2019 [cited 2024 November 22] Available at: https://urn.nsk.hr/urn:nbn:hr:149:781767

A. Koštić, "Primjena IC termografije pri očvršćivanju poliestera u modelnim kalupima", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:149:781767

Metadata
TitlePrimjena IC termografije pri očvršćivanju poliestera u modelnim kalupima
Title (english)Application of IC thermography during the polyester curing in model molds
AuthorAnte Koštić
MentorVanja Kosar (mentor)
Committee memberVanja Kosar (predsjednik povjerenstva)
Committee memberDomagoj Vrsaljko (član povjerenstva)
Committee memberZvonimir Katančić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2019-09-16, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Reaction Engineering
Abstract
U ovom radu proučavana je reakcija očvršćivanja nezasićenih poliestera u valjkastim kalupima zagrijavanim u uljnoj i zračnoj kupelji. Glavni problem prilikom egzotermne reakcije očvršćivanja čini generacija topline te značajno povećanje temperature unutar kalupa. Dodatkom inertnog punila smanjen je udio reaktivne komponente u smjesi posljedica čega je redukcija količine generirane topline u odnosu na čistu smolu. Predložen je matematički model u svrhu simuliranja reakcije očvršćivanja. Validacija modela izvršena je usporedbom sa eksperimentalno izmjerenim temperaturama u središtu kalupa. Provedeno je termografsko ispitivanje reakcije očvršćivanja u modelnim kalupima. Svrha provedbe samog snimanja jest određivanje temperaturnih profila, budući da se unutar samog kalupa za vrijeme reakcije javlja temperaturni gradijent koji se proteže od središta do stijenke kalupa što može dovesti do formiranja termosetnog proizvoda nejednolikih svojstava. Izazov samoj metodi predstavljaju male dimenzije kalupa kao i činjenica da su kalupi napravljeni od materijala niske emisivnosti (polirani bakar).
Abstract (english)
Curing of unsaturated polyester was studied experimentally in a cylindrically shaped copper mold heated with hot air and oil. Considering that the cure reaction is exothermic, the encountered problems are heat generation and increasing temperatures during the reaction. Introduction of an inert filler decreased the number of reactive components and, as the result, reaction heat was lower than in the case of pure resin. Mathematical model is proposed in order to simulate curing process of unsaturated polyester resin in cylindrical mold. The suggested mathematical model has been verified by temperature measurements during the cure reaction in the center of mold at various temperature of heating. Thermographic testing of the curing reaction of a polyester resin sample in model molds was carried out. The purpose of the thermographic recording is to determine the temperature profiles, since a temperature gradient extends from the center to the mold wall during the reaction, which can lead to unequal properties of the final product. The challenge to the thermographic method lies in the fact that the mold is made of low emissivity material (polished copper) and that the mold dimensions are small.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:781767
Study programmeTitle: Chemical 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 conditionsAccess restricted to students and staff of home institution
Terms of useLicence In copyright icon
Created on2022-02-22 11:17:52