diplomsko delo
Jan Gale (Author), Urška Šebenik (Mentor)

Abstract

Hibridni kompoziti na osnovi naravnih vlaken so snovi, ki vsebujejo več različnih vlaken. Sestavljeni so iz polimerne matrice ter vsaj dveh polnil, od katerih so vsaj eno polnilo vlakna naravnega izvora. Lastnosti kompozita so odvisne od lastnosti posameznih komponent in interakcij med njimi. Namen uporabe naravnih vlaken v teh kompozitih so njihove dobre mehanske lastnosti, dostopnost, cena, nizka gostota, prijaznost okolju, pri predelavi pa ne sproščajo nevarnih snovi in zaradi tega ne poškodujejo opreme, ki se pri predelavi uporablja. Za naravna vlakna pa so značilne tudi slabosti, kot so slaba termična obstojnost, gorljivost, absorpcija vode in občutljivost na UV svetlobo, mikrobe in plesni. Tem slabostim se lahko izognemo na nekaj načinov. Kot prvo, lahko naravna vlakna dodatno obdelamo, s čimer spremenimo njihov značaj in lažjo vezavo z matrico. Kot drugo pa lahko kompozitu dodamo še eno ali več polnil. Dodatno polnilo omili slabosti naravnega polnila. Na ta način lahko pripravimo kompozite z lastnostmi čim bližje takim kot si jih želimo in s tem omogočimo njihovo uporabo na določenem področju.

Keywords

okolju prijazni materiali;naravna vlakna;rastlinska vlakna;živalska vlakna;hibridni kompoziti;matrice;polimeri;diplomska dela;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher: [J. Gale]
UDC: 620.1:678(043.2)
COBISS: 1538425539 Link will open in a new window
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Downloads: 236
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Other data

Secondary language: English
Secondary title: Natural fiber hybrid composites for advanced applications
Secondary abstract: Natural fiber hybrid composites are substances containing different fibers. They are made of polymer matrix and at least two fillers, where at least one filler is natural fiber. Properties of a composite depend on properties of each component and interactions between them. Purpose for the use of natural fibers are their great mechanical properties, accessibility, price, low density, environmental friendliness, and they do not release harmful substances during processing, that can damage the equipment used. Natural fibers also have some weaknesses, such as bad thermal stability, flammability, water absorption, sensitivity to UV light, germs and molds. There are a few ways to void these. Firstly, we can additionally process natural fibers to improve their properties and matrix bonding. Secondly, we can add more fillers to the composite. The additional filler lessens the weaknesses of the natural filler. That way we can make composites with properties close to the wanted ones and enable their use for a certain application.
Secondary keywords: natural fibers;hybrid composites;environmental friendly materials;
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: 33 str.
ID: 11220331