Priprava in karakterizacija nanoceluloze iz različnih virov

diplomsko delo

Anja Zagorc (Author), Majda Sfiligoj-Smole (Mentor), Tatjana Kreže (Co-mentor)

Abstract

V zadnjem času se vedno bolj poudarja pomembnost različnih naravno obnovljivih materialov. Eden pomembnejših je celuloza, ki jo najdemo v različnih rastlinskih virih. Poleg konvencionalnih virov celuloze se v zadnjem času raziskujejo tudi nekonvencionalni, ki so pogosto stranski produkti prehrambnih rastlin v kmetijstvu. V okviru diplomske naloge smo raziskali nekaj rastlin kot potencialnih virov tekstilnih vlaken. Proučili smo koprivo, vrbo, brnistro, velecvetno mrtvo koprivo, lucerno in konopljo. Najprej smo iz stebel izolirali vlakna, ki smo jih okarakterizirali. Izolirana vlakna so imela ustrezne tekstilno tehnološke lastnosti. Izolirana vlakna smo uporabili za pripravo nanokristaline celuloze. Opazovali smo morfološke značilnosti delcev nanokristaline celuloze in določili njihovo velikost. Delci so bili paličaste oblike velikosti med 205nm do 569nm. Določili smo še zeta potencial dispergiranih delce, ki kaže na stabilnost delcev v disperziji.

Keywords

nanoceluloza;naravno obnovljivi materiali;rastlinska vlakna;pridobivanje tekstilnih vlaken;morfološke lastnosti;mehanske lastnosti;izolacija vlaken;celulozna vlakna;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2016
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FS - Faculty of Mechanical Engineering
Publisher:	[A. Zagorc]
UDC:	677.46.017(043.2)
COBISS:	20385558
Views:	1213
Downloads:	124
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Preparation and characterization of nanocellulose from different origins
Secondary abstract:	Lately is more and more important to go back to nature, to go back to naturally renewable materials. One of the most important natural renewable sources is cellulose, which can be found in many plants. In addition to conventional sources of cellulose recently there are explored also unconventional sources, which are often waste of food crops in agriculture. Within the thesis we studied some plants as potential sources of fibres. We examined the nettle, willow, Spanish broom, big dead nettle, alfalfa and hemp. We first isolated fibres from stems which we characterize. We got relevant textile mechanical properties. Isolated fibres were used to prepare nanocrystalline cellulose. We observed morphological characteristics of nanocellulose particles and determine their size. The particles had rod shape and their size were from 205nm to 569nm. We also determined zeta potential, which showed us that we have stability of particles in dispersion.
Secondary keywords:	nanocellulose;natural renewable materials;cellulose fibers;mechanical properties;
URN:	URN:SI:UM:
Type (COBISS):	Bachelor thesis/paper
Thesis comment:	Univ. v Mariboru, Fak. za strojništvo, Tehnologije tekstilnega oblikovanja
Pages:	XII, 46 f.
ID:	9166987