20.500.12556/RUL-175623 Spajanje termoplastičnega in duroplastičnega kompozita s tehnologijo brizganja magistrsko delo Hybrid joining of thermoplastic and thermoset composites using injection molding technology master's thesis Magistrsko delo obravnava raziskavo adhezije med polimernimi kompoziti, konkretno na primeru termoplastičnega kompozita na osnovi polifenilensulfida (PPS), ojačanega s steklenimi vlakni in mineralnimi polnili, ter duroplastičnega kompozita na osnovi epoksi smole (EP), ojačanega s steklenimi vlakni in mineralnimi polnili. Pripravili smo testne serije vzorcev z različnimi parametri brizganja. Z laserskim strukturiranjem smo modificirali površino gredi iz termoplastičnega kompozita, preden smo jih obrizgali z duroplastičnim kompozitom. Pripravljeni vzorci so bili analizirani z računalniško tomografijo (CT), testom tesnosti (s He masnim spektrometrom in potopitvena metoda s spremljanjem izhajanja mehurčkov pri nadtlaku) in mehanskimi preizkusi porušitve spoja. Z namenom analize površin polimernih kompozitov in analize mejnih površin med polimernima kompozitoma smo se poslužili naprednih površinskih analitskih metod: vrstična elektronska mikroskopija (SEM) skupaj z energijsko disperzijsko spektroskopijo rentgenskih žarkov (EDS), rentgenska fotoelektronsko spektroskopijo (XPS) in analiza s sekundarnim ionskim masnim spektrometrom (SIMS). Rezultati kažejo, da je kakovost adhezije odvisna od predobdelave ali stanja površine in kombinacije uporabljenih materialov, vsebnost mineralnih polnil v duroplastičnem kompozitu. Analize so potrdile, da lasersko strukturiranje prispeva k mehanskemu zaklepanju in posledično k tesnosti in stabilnosti spojev med materialoma. This thesis examines the adhesion between polymer composites, with a particular focus on a thermoplastic composite based on polyphenylene sulfide (PPS), reinforced with glass fibers and mineral fillers, and a thermoset composite based on epoxy resin (EP), also reinforced with glass fibers and mineral fillers. Experimental sample series were prepared under varying injection molding parameters. Prior to overmolding with the thermoset composite, the surface of the thermoplastic composite shafts was modified through laser structuring. The prepared specimens were characterized using computed tomography (CT), leak testing (helium mass spectrometry and the immersion method with bubble detection under overpressure), and mechanical joint failure testing. To further investigate the polymer composite surfaces and the interfacial regions between the two composite systems, advanced surface analytical techniques were employed: scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and secondary ion mass spectrometry (SIMS). The findings demonstrate that adhesion quality is strongly influenced by surface pretreatment and condition, the specific combination of constituent materials, and the mineral filler content of the thermoset composite. The analyses confirmed that laser structuring enhances mechanical interlocking, thereby improving the sealing performance and the overall stability of the joints between the materials. termoplastični kompoziti duroplastični kompoziti spajanje brizganje površinska obdelava thermoplastic composites thermoset composites joining injection molding surface treatment true false false V. Tavčar Slovenski jezik Angleški jezik Magistrsko delo/naloga 2025-11-06 09:00:11 2025-11-06 09:00:26 2025-12-13 03:52:03 0000-00-00 00:00:00 2025 0 Ljubljana 0 Ljubljana XV, 74 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 669 110411 257912579 28050.pdf 28050.pdf 1 D85243D87B9E357853E5464C6CCBFFAC d3c71494453fd2ec31f786a201e496123326609eb1d2e96e14c928a97f80d95d 575eefa6-bae6-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=221450 Naravoslovnotehniška fakulteta 0 0 0