Odpornost lesa, premazanega z vodnimi emulzijami voskov, proti glivam modrivkam in plesnim

diplomsko delo - univerzitetni študij

Jože Avguštinčič (Author), Franc Pohleven (Reviewer), Miha Humar (Mentor)

Abstract

Z zaščito lesa želimo čimbolj podaljšati življenjsko dobo lesa. V današnjem času so še posebno pomembne nebiocidne zaščite; ena od možnosti je zaščita z vodnimi emulzijami voskov. Trajnost in izgled lesa močno poslabšajo glive modrivke in plesni. Da bi ugotovili učinkovitost vodnih emulzij voskov proti glivam modrivkam in plesnim, smo z vodnimi emulzijami montanskega polietilenskega ter oksidiranega polietilenskega voska premazali vzorce borove beljave in preverili delovanje v skladu s standardom SIST EN 152-1. V posameznih primerih smo vodnim emulzijam voskov dodali še borovo kislino. Ugotovili smo, da vzorci, zaščiteni z vodnimi emulzijami voskov, niso bistveno zaščitili lesa pred modrenjem in plesnenjem. Z dodajanjem borovih učinkovin vodnim emulzijam smo odpornost zaščitenega lesa proti glivam modrivkam močno izboljšali.

Keywords

les;zaščita lesa;vodne emulzije voskov;montanski vosek;polietilenski vosek;glive modrivke;

Data

Language:	Slovenian
Year of publishing:	2010
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[J. Avguštinčič]
UDC:	630*841.1
COBISS:	1804169
Views:	1288
Downloads:	286
Average score:	0 (0 votes)
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Other data

Secondary language:	English
Secondary title:	Resistance of wood brushed with wax water emulsions against blue stain fungi
Secondary abstract:	To prolong service life of wood its protection is applied. Importance of non-biocidal solutions used to protect wood is increasing nowadays. One of the options for such protection is utilization of wax emulsions. Among various factors influencing service life and aesthetic aspects of wood are blue stain fungi and moulds. To elucidate influence of various wax emulsions on blue stains and moulds, pine sapwood specimens were brushed with various emulsions of montan, polyethylene and oxidized polyethylene waxes. Experiment was performed according to EN 152-1 procedure. To achieve a better effect, aqueous emulsions of waxes were supplemented with boric acid. The results showed that wax treatment did not improve resistance of pine wood against staining fungi. However, addition of boron to wax emulsions significantly decreases staining.
Secondary keywords:	wood;wood preservation;water emulsions;montan wax;polyethylene wax;blue stain fungi;
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Ljubljani, Biotehniška fakulteta, Odd. za lesarstvo
Pages:	XII, 64 f.
Keywords (UDC):	applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;agriculture and related sciences and techniques;forestry;farming;wildlife exploitation;kmetijstvo ter sorodne vede in tehnologije;forestry;gozdarstvo;forest products and their utilization;gozdni proizvodi in njihova uporaba;
ID:	21851