Evaluation of the rosemery extract effect on the thermal properties of polyethylene oxide based composite material : diploma thesis

Abstract

Poli(etilen-oksid) (PEO) je vodotopljiv, netoksičan i biokompatibilan polimer s velikim potencijalnom primjene u mnogim granama industrijama. Kako bi mu se proširila primjena, neka svojstva je potrebno poboljšati dodavanjem aditiva. Dodatak prirodnih aditiva, poput ekstrakta ružmarina (ER), predstavlja strategiju za poboljšanje strukturnih, toplinskih, mehaničkih i biorazgradljivih svojstava. Cilj ovog rada je pripremiti kompozite PEO/ER ekstruzijom, istražiti utjecaj dodatka ER na strukturu PEO primjenom infracrvene spektroskopije sa Fourierovom transformacijom, zaključiti o utjecaju dodatka ER na toplinska svojstva PEO pomoću diferencijalne pretražne kalorimetrije (DSC) i temeljem termogravimetrijske analize (TGA) zaključiti o utjecaju dodatka ER na toplinsku postojanost PEO. Ovakvo istraživanje omogućava dublje razumijevanje utjecaja ER na svojstva PEO, što je ključno za razvoj novih materijala s unaprijeđenim svojstvima.Poly(ethylene-oxide) (PEO) is water-soluble, non-toxic and biocompatible polymer with great potential for various industries. In order to expand its application, some properties needs to be enhanced by adding additives. Adding natural additives such as rosemary extract (ER), represents a strategy for improving structural, thermal, mechanical and biodegradable properties. The aim of this study is to prepare PEO/ER composite by hot-melt extrusion, investigate the influence of ER addition on the structure of PEO using Fourier-transform infrared spectroscopy (FTIR), conclude about the effect of ER addition on thermal properties of PEO using differential scanning spectroscopy (DSC) and based on thermogravimetric analysis (TGA) estimate the effect of ER addition on thermal stability of PEO. This research enables a deeper understanding of the impact of ER on PEO properties, which is crucial for the devolopment of new materials with improved properties

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Last time updated on 11/10/2024

This paper was published in University of Split Repository.

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