20.500.12556/RUL-126343 Ananasovo usnje Ananas leather V diplomskem delu so bile raziskane morfološke lastnosti ananasovih vlaken in izvedena primerjalna raziskava lastnosti ananasovega in poliuretanskega usnja. Iz ananasovega usnja sta bila izdelana dva unikatna galanterijska izdelka – torbica za prenosni računalnik in pasna torbica. Z raziskavo ananasovih vlaken, izločenih iz listov, je bilo ugotovljeno, da so tehnična vlakna zelo fina (debeline 24–64,2 µm), sestavljena iz elementarnih vlaken debeline 2,6–3,4 µm. Ananasovo usnje Pinatex® je vlaknovina iz ananasovih vlaken, premazana z biorazgradljivim polilaktidom z dodatkom poliuretana, ploščinske mase 506,25 g/m2, debeline 2,33 mm in gostote 0,234 g/cm3. V primerjavi s poliuretanskim usnjem primerljive ploščinske mase (545,19 g/m2) je bil Pinatex® za 1,9-krat debelejši in s tem bolj voluminozen od poliuretanskega usnja. Pinatex® je bil bolj tog in se v suhem bolj mečkal od PU-usnja. Hrbtna stran Pinatex® je bila vodovpojna, lična pa hidrofobna. Pinatex® je bil odlično odporen na drgnjenje, vendar je dosegel veliko nižjo natezno trdnost (33,2 MPa) kot primerjalno PU-usnje (82,4 MPa). In the diploma work were analysed morphological properties of pineapple fibres, compared were properties of pineapple leather with polyurethane leather and made two unique haberdashery products - a laptop bag and a belt bag. Pineapple technical fibres extracted from the leaves were very fine, with a diameter 24⠒64.2 μm, and composed from elemental fibres of 2.6⠒3.4 μm thickness. Piñatex® pineapple leather is a nonwoven made from pineapple fibres and coated with biodegradable polylactide with the addition of polyurethane. Its mass per unit area was 506.25g/m2, thickness of 2.33 mm and a density of 0.234 g/cm3. Compared to polyurethane leather with roughly the same mass per unit area (545.19 g/m2), Piñatex® was 1.9 times thicker and thus more voluminous than polyurethane leather. Piñatex® was stiffer and wrinkled more than PU leather when dry. The back side of the Piñatex® was water-absorbing and its face side was hydrophobic. Piñatex® had excellent abrasion resistance but much lower tensile strength (33.2 MPa) then the compared PU leather (82.4 MPa). vegetativno usnje ekološko usnje patentno usnje listno vlakno. vegetative leather organic leather patented leather leaf fibre true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2021-04-17 09:01:05 2021-04-17 09:01:07 2022-09-05 03:54:50 0000-00-00 00:00:00 2021 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 78304 6448.pdf 6448.pdf 1 687A7B64A87DB9FC271970861C37D815 7c6e658f83c657a1312fad0376281f99ec30a91a4ed2afda782980168dd7fa20 e3f9f397-a1bb-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=142259 Naravoslovnotehniška fakulteta 0 0 0