Izdelava ploščnega kompozita iz skorje

magistrsko delo

Grega Vilman (Author), Milan Šernek (Reviewer), Sergej Medved (Mentor)

Abstract

Skorja predstavlja 10 % do 20 % mase drevesa, ki se večinoma porabi za pridobivanje energije, ali pa v hortikulturne namene. Večji del skorje, ki nastane v procesu odstranjevanja skorje v gozdu, na žagarskih obratih, pri proizvodnji lesnih ploščnih kompozitov ali pri proizvodnji celuloze za papirno industrijo, se skuri (izkoriščanje energije biomase), medtem ko se manjši delež skorje uporabi v hortikulturne namene (urejanje krajine), v farmaciji in strojenju usnja. V ta namen se v zadnjem obdobju vse bolj intenzivno iščejo različne možnosti uporabe, med drugim tudi izdelava različnih ligno-celuloznih kompozitov. Čeprav z dezintegracijo skorje dobimo, z morfološkega aspekta, manj zaželene oblike gradnikov, smo izdelali trislojne iverne plošče, ki smo jih primerjali s ivernim ploščam iz smreke. Na podlagi rezultatov lahko rečemo, da so plošče iz skorje primerne za uporabo v pohištveni industriji. Nekoliko slabše prenašajo upogibne obremenitve, vendar jih lahko uporabimo v prostorih oz. okoljih kjer je vlažnost večja, zaradi manjšega vpijanja vode in debelinskega nabreka. Če predpostavimo, da uporabimo relativno ugodnejši material, ki ga večinoma tretiramo kot ostanek predelave hlodovine, skorja predstavlja zanimivo alternativo do sedaj uveljavljenih in poznanih materialov v proizvodnji ivernih plošč.

Keywords

skorja;skorja iglavcev;iverne plošče;iveri;mehanske lastnosti;

Data

Language:	Slovenian
Year of publishing:	2023
Typology:	2.09 - Master's Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[G. Vilman]
UDC:	630862.2:630811.7
COBISS:	166555907
Views:	31
Downloads:	2
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Production of a panel type composite from bark
Secondary abstract:	Bark represents 10% to 20% of the tree mass and is mostly used for energy production and horticultural purposes. The greater part of the bark produced in the process of removing the bark in the forest, at sawmills, in the production of wood panel composites or in the production of pulp for the paper industry, is burned for biomass energy, while a smaller proportion of bark is used for horticultural purposes (landscaping) and the pharmaceutical and leather industries. Because of this, in recent years there has been a search for other possible uses of this material, including the production of various ligno-cellulose composites. Although the disintegration of bark gives, from a morphological aspect, less desirable forms of wood particles, we produced three-layer chipboards which we compared with chipboards made from spruce particles. Based on the results, we can say that chipboards made from bark particles are suitable for use in the furniture industry. They are less bending resistant, but they can be used in rooms or environments with higher air humidity, due to lower water absorption and thickness swelling. If we assume that we use a relatively more favourable material, which is mostly treated as a residue of log processing, the bark represents an interesting alternative to the established and known materials in the production of chipboards.
Secondary keywords:	bark;conifers bark;particle boards;chips;mehanical properties;
Type (COBISS):	Master's thesis/paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za lesarstvo
Pages:	1 spletni vir (1 datoteka PDF (IX, 73 str., [18] str. pril.))
ID:	19941568