zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni program
Abstract
Ekspandiran polistiren (EPS) zaradi svojega nizkega koeficienta toplotne prevodnosti predstavlja enega najbolj razširjenih materialov za toplotno izolacijo. Pri izdelavi EPS polizdelkov nastaja prah, ki kot stranski produkt trenutno v industriji predstavlja odpadek. V okviru zaključne naloge smo raziskali nov način reciklaže prahu, pri katerem smo ga kot polnilo dodajali epoksidni smoli. Cilj zaključne naloge je primerjati termične, reološke in mehanske lastnosti smole z različnimi deleži polnila iz EPS prahu. Opravili smo izotermno analizo diferencialne dinamične kalorimetrije (DSC) zamreževanja čiste smole pri različnih temperaturah in DSC analizo toplotne kapacitete kompozitov z različnimi deleži polnila. Reološke lastnosti smo določili s testom zamreževanja smole pri različnih konstantnih temperaturah, ki je omogočil vpogled v spreminjanje viskoelastičnih lastnosti. Mehanske lastnosti kompozitov z različnimi deleži polnila smo preverili s tritočkovnim upogibnim testom. Ugotovili smo, da smola z višanjem temperature hitreje zamreži. Z večanjem koncentracije polnila se mehanske lastnosti kompozitov slabšajo, medtem ko se toplotna izolativnost kompozitov izboljšuje.
Keywords
kompoziti;epoksi smola;polnila;EPS prah;diferenčna dinamična kalorimetrija;viskoelastične lastnosti;dinamična mehanska analiza;
Data
Language: |
Slovenian |
Year of publishing: |
2024 |
Typology: |
2.11 - Undergraduate Thesis |
Organization: |
UL FS - Faculty of Mechanical Engineering |
Publisher: |
[L. Rotter] |
UDC: |
678.061:52-334.2:517(043.2) |
COBISS: |
202519299
|
Views: |
73 |
Downloads: |
26 |
Average score: |
0 (0 votes) |
Metadata: |
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Other data
Secondary language: |
English |
Secondary title: |
Analysis of epoxy resin composites with EPS powder filler |
Secondary abstract: |
Expanded polystyrene (EPS) is due to its low thermal conductivity coefficient one of the most widely used materials for thermal insulation. During the production of EPS semi-finished products, powder is generated, which currently represents waste as a by-product. This thesis explores a new method of recycling the EPS waste powder by using it as a filler in epoxy resin. The aim of the study was to compare the thermal, rheological, and mechanical properties of the resin with different concentrations of EPS powder filler. We performed isothermal DSC analysis of the curing of pure resin at different temperatures and DSC analysis of the thermal capacity of composites with various filler ratios. Rheological properties were determined by a curing test of the resin at different constant temperatures, providing insight into the changes in viscoelastic properties. Mechanical properties of composites with different filler ratios were evaluated using three-point bending tests. We found that the resin cures faster with increasing temperature. With increasing filler concentration mechanical properties of the composites deteriorate while the thermal insulation properties of the composites improve. |
Secondary keywords: |
composites;epoxy resin;fillers;EPS powder;differential scanning calorimetry;viscoelastic properties;dynamic mechanical analysis; |
Type (COBISS): |
Final paper |
Study programme: |
0 |
Embargo end date (OpenAIRE): |
1970-01-01 |
Thesis comment: |
Univ. v Ljubljani, Fak. za strojništvo |
Pages: |
XI, 40 f. |
ID: |
24426508 |