Podaljševanje življenjske dobe polimernih materialov za zunanjo uporabo

diplomsko delo

Urban Udovič (Author), Urška Šebenik (Mentor)

Abstract

Polimerni materiali so s pospešenim razvojem tehnologije in industrije v zadnjih letih pridobili pomemben status v našem vsakdanjem življenju. Kljub mnogim prednostim, ki jih prinašajo polimerni materiali (nizka gostota, visoka trdnost, prikladnost večstranske uporabe...), predstavljajo veliko grožnjo našemu ekosistemu. Kot odpadek predstavljajo velik izziv, saj je pred postopki njihove razgradnje potrebno nadzorovano ravnanje z odpadkom (sortiranje). S tem razlogom je v zadnjem času moč zaznati razvoj na področju iskanja trajnostnih rešitev uporabe polimernih materialov v zunanjem okolju. V diplomski nalogi sem opisal dva pristopa, ki stremita k tem rešitvam. Prvi pristop temelji na kompozitnih materialih, ki so sestavljeni iz dveh ali več komponent, katere so izbrane na podlagi individualnih lastnosti, za katere želimo, da se ohranijo oziroma izrazijo v novonastalem kompozitu. Z ustrezno sestavo in procesom izdelave kompozita ima ta izboljšano zmogljivost oziroma boljšo funkcionalnost od individualnih osnovnih komponent. Drugi pristop, ki sem ga predstavil je samoceljenje polimernih materialov. Samoceljenje je lastnost nekaterih pametnih materialov, za katere je značilno, da se odzivajo na zunanje dražljaje. Material s sposobnostjo samoceljenja lahko definiramo kot material, ki ob nastali poškodbi takoj in avtonomno obnovi poškodovano mesto. Oba pristopa sta osredotočena na podaljševanje življenjske dobe polimernih materialov. S tem se v praksi izognemo raznim okvaram, popravilom in menjavi delov ter s tem zagotovimo trajnost produkta na področjih, kjer je to pomembno. V sklopu svojega diplomskega dela sem princip obeh pristopov povzel na primeru izdelave ter praktične uporabe specifičnega polimernega materiala s sposobnostjo samoceljenja, ki je ojačan z ogljikovimi vlakni (CFRP).

Keywords

polimeri;polimerni materiali;kompozitni materiali;polimeri ojačani z ogljikovimi vlakni;CFRP;temperatura steklastega prehoda;samoceljenje;diplomska dela;

Data

Language:	Slovenian
Year of publishing:	2021
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher:	[U. Udovič]
UDC:	678(043.2)
COBISS:	65018627
Views:	344
Downloads:	68
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Extending the lifetime of polymeric materials for outdoor use
Secondary abstract:	With recent rapid development of technology and industry, polymeric materials have gained an important status in our everyday life. Despite many advantages, that polymeric materials are providing (low density, high strength, suitability of multilateral use…), they represent a significant threat to our ecosystem. As a form of waste, they represent a great challenge because the procedures of their decomposition demand controlled waste management (sorting). For that reason, it is possible to detect recent developments in the search for sustainable solutions in the field of polymeric materials applied in external environment. In my thesis I described two approaches, that strive for these solutions. The first approach is based on composite materials, that are composed of two or more components, which are selected on the basis of individual properties that we want to preserve or express in the newly formed composite. With the appropriate composition and manufacturing process of the composite, the performance and functionality of individual basic components are improved. The second approach I presented is self-healing of polymeric materials. Self-healing is a property of some smart materials, for which it is typical to respond to external stimuli. Material with the ability of self-healing can be defined as a material that with the occurrence of an injury, immediately and autonomously restores the damaged area. Both approaches are focused on the extension of longevity of polymeric materials. In practice, this allows us to avoid various defects, repairs and replacements of parts, thus ensuring the durability of the product in areas where it is of importance. Within my thesis, I have summarized the principle of both approaches with an example of manufacture and practical use of a specific polymeric material with self-healing ability, reinforced with carbon fiber (CFRP).
Secondary keywords:	polymers;composite materials;carbon fiber reinforced polymers;self-healing;
Type (COBISS):	Bachelor thesis/paper
Study programme:	1000372
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, UNI Kemijsko inženirstvo
Pages:	53 str.
ID:	12811737