Izolacijske plošče iz naravnih vlaken

Miklič, Aleks (author), Medved, Sergej (mentor)

V nalogi smo ugotavljali toplotne izolativne lastnosti različnih naravnih materialov v obliki vlaken. V raziskavi smo preučevali celulozne kosmiče in konopljo, ki za uporabo veljata kot najbolj primerna naravna materiala. Konopljo smo razčlenili na dolga vlakna, mleta vlakna in pezdir. Zanimalo nas je, kako različni naravni materiali z različno morfologijo osnovnih delcev in različno gostoto vplivajo na toplotno prevodnost. Za raziskavo razlik v izolativnih lastnostih smo materiale izpostavili različnim klimatskim pogojem, ter preučili vpliv deleža lepila in različnih dodatkov na izolativne lastnosti. Ugotovili smo, da se uporabljeni materiali v izolativnih lastnostih razlikujejo. Razen pri dolgih vlaknih so materiali z višjo gostoto imeli slabše izolacijske lastnosti. Ugotovili smo tudi, da se materialom z višjo gostoto koeficient toplotne prevodnosti spreminja počasneje, če so izpostavljeni vlažnim klimatskim pogojem. Slabše izolacijske lastnosti smo ugotovili tudi pri večjih deležih lepila. Pri dodanem silikagelu smo pri spremembi vlažnosti zaznali obarvanje, kar nakazuje, da bi bil primeren kazalnik prevelike vlage v izolaciji.

• Language: Slovenian
• Keywords: naravna vlakna/izolacija/vlažnost/koeficient toplotne prevodnosti/konoplja
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: BF - Biotechnical Faculty
• Publisher: [A. Miklič]
• Year: 2018
• PID: 20.500.12556/RUL-100610
• UDC: 630*862
• COBISS.SI-ID: 2893961
• Publication date in RUL: 31.03.2018

MIKLIČ, Aleks, 2018, Izolacijske plošče iz naravnih vlaken [online]. Master’s thesis. A. Miklič. [Accessed 1 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=100610

Secondary language

• Language: English
• Title: insulating boards made of natural fibers

Abstract

The purpose of the investigation was to study insulation properties of different fibre shaped natural materials. For study celluloze flakes and hemp was used, which are the most effective natural materials. Hemp was divided in to long fibres, grind fibers and wood-like core fibre. We investigated differences between type of material, board densities and their impact on coefficient of thermal conductivity. For investigating the differences in insulation properties, we expose materials to different climat conditions. Influence of resin share and different additives on insulation properties was also investigated. We determined the differences in insulation properties related to type of material used. With the exeption of long fibres, the materials with the higher density had higher thermal conductivity. We also found out, that the materials with the higher density had greater effect on thermal conductivity when exposed to high moisture environment. Thermal conductivity increased with increasing resin share. The change of color was noticed at the silica gel, when the climat conditions changed. That means that it is good for monitoring the change of moisture in insulation.

• Keywords: natural fibers/insulation/moisture content/ coefficient of thermal conductivity /hemp