diplomsko delo Visokošolskega strokovnega študijskega programa I. stopnje Strojništvo - Projektno aplikativni program
Zule Nikolova (Author), Lidija Slemenik Perše (Mentor)

Abstract

V diplomski nalogi se osredotočamo na celovit pregled termičnih in reoloških lastnosti filamentov iz čiste polilaktične kisline (PLA) ter z bakrom polnjeno zmes polilaktične kisline s polihidroksialkanoatom (PLA/PHA). Cilj naloge je pridobiti dragocen vpogled v predelovalne pogoje in potencialne aplikacije teh materialov. Proučiti želimo vedenje materialov na osnovi PLA pod različnimi pogoji ter njihovo primernost za aplikacije v industrijah, ki dajejo prednost trajnostnim in okolju prijaznim praksam, vključno s prehrambeno, medicinsko, avtomobilsko, električno industrijo in aditivno proizvodnjo, s čimer bi prispevali k izboljšani mehanski zmogljivosti in širši uporabi. Raziskava vključuje izvedbo termične analize surovega materiala s pomočjo metode diferenčne dinamične kalorimetrije (DSC) za proučevanje temperature taljenja, kristalizacije ter termične stabilnosti materialov. Za izdelavo vzorcev bomo uporabili metodo mikro injekcijskega brizganja. Ta tehnika omogoča proizvodnjo vzorcev s standardiziranimi geometrijami, kot so diski in palice, ki služijo kot reprezentativni vzorci za določevanje materialnih lastnosti. Mikro injekcijsko brizganim vzorcem bomo nato s pomočjo metode DSC še enkrat določili termične lastnosti, kar bo omogočilo določitev morebitnih sprememb zaradi postopka brizganja. S pripravljenimi vzorci bo izvedena tudi reološka karakterizacija za proučevanje tokovnega vedenja ter procesnih parametrov materialov.

Keywords

diplomske naloge;filamenti;termične lastnosti;reološke lastnosti;polilaktična kislina;visoko polnjena polilaktična kislina;mehanske lastnosti;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [Z. Nikolova]
UDC: 678.7:677.071.25:620.1(043.2)
COBISS: 202741251 Link will open in a new window
Views: 71
Downloads: 17
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary title: Thermal and Rheological Analysis of Highly Filled Polylactic Acid
Secondary abstract: In the thesis, we focus on a comprehensive review of the thermal and rheological properties of filaments made from pure polylactic acid (PLA) and copper-filled mixture of polylactic acid with polyhydroxyalkanoate (PLA/PHA). The objective of the thesis is to gain valuable insights into the processing conditions and potential applications of these materials. We aim to examine the behavior of PLA-based materials under different conditions and their suitability for applications in industries that prioritize sustainable and environmentally friendly practices, including the food, medical, automotive, electrical, and additive manufacturing industries, contributing to improved mechanical performance and wider utilization. The research includes conducting thermal analysis using the Differential Scanning Calorimetry (DSC) method to study the melting temperature, crystallization, and thermal stability of the as-received materials. For sample preparation, we will utilize the micro injection molding method. This technique allows the production of samples with standardized geometries, such as discs and rods, serving as representative samples for evaluating material properties. Subsequently, we will determine thermal properties of the micro-injection-molded samples using the DSC method to determine whether material properties have changed during the injection molding process. Additionally, we will perform rheological characterization to examine flow behavior and material processing parameters.
Secondary keywords: filaments;thermal properties;rheological properties;polylactic acid;highly filled polylactic acid;mechanical properties;
Type (COBISS): Bachelor thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XXII, 58 str.
ID: 24452716