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Analiza epoksi smol za izdelavo jadralnih desk
ID Gašperšič, Luka (Author), ID Slemenik Perše, Lidija (Mentor) More about this mentor... This link opens in a new window

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Abstract
Jadralne deske so večinoma narejene iz polimerne pene, obdane s polimernimi kompozitnimi laminati. Za izdelavo kompozitnih laminatov pri jadralnih deskah se večinoma uporabljajo steklena vlakna ter epoksi smola. Epoksi smole, namenjene izdelavi jadralnih desk, so lahko tudi nekajkrat dražje kot epoksi smole, namenjene izdelavi klasičnih kompozitov. V okviru zaključne naloge je bila izvedena analiza razlik med takima smolama, z namenom optimizacije proizvodnih stroškov jadralnih desk. Izvedena je bila termična (DSC), reološka in mehanska (DMA) analiza obeh komercialno dostopnih epoksi smol. Ugotovljeno je bilo, da se smola, namenjena izdelavi jadralnih desk, v večini primerov zamreži hitreje kot smola, namenjena izdelavi klasičnih kompozitov. Zanimivo je, da smola, namenjena izdelavi klasičnih kompozitov, v veliko primerih po končanem procesu zamreževanja dosega višje vrednosti elastičnega in viskoznega modula kot smola, namenjena izdelavi jadralnih desk. Pri mehanski analizi ni prišlo do večjih razlik med smolama, ki sta bili zamreženi na sobni temperaturi.

Language:Slovenian
Keywords:kompoziti, jadralna deska, epoksi smola, izdelava jadralnih desk, termične lastnosti termosetov, viskoelastične lastnosti, dinamična mehanska analiza
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[L. Gašperšič]
Year:2023
Number of pages:XIII, 36 str.
PID:20.500.12556/RUL-146972 This link opens in a new window
UDC:678.686:677.521:797.148(043.2)
COBISS.SI-ID:156214019 This link opens in a new window
Publication date in RUL:17.06.2023
Views:951
Downloads:85
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Secondary language

Language:English
Title:Analysis of epoxy resins, used in surfboard production
Abstract:
Surfboards are mostly made of polymer foam encased in polymer composite laminates. Glass fibers and epoxy resin are commonly used for manufacturing composite laminates in surfboards. Epoxy resins, recommended for surfboard production can be several times more expensive than epoxy resins used for traditional composites. As part of this thesis, an analysis of two commercially available resins was performed with the aim of optimizing the production costs of surfboards. Thermal (DSC), rheological, and mechanical (DMA) analyses were performed on both materials. The results showed that the resin, recommended for surfboard production generally cures faster than the resin, used for traditional composites. Interestingly, the resin for traditional composites often reaches higher values of elastic and viscous modulus after curing compared to the resin for surfboard production. Moreover, there were no significant differences observed in mechanical properties of the two resins.

Keywords:composites, surfboard, epoxy resin, surfboard production, thermal properties of thermosets, viscoelastic properties, dynamic mechanical analysis

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