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Title:Adsorpcija baker-etanolaminskih zaščitnih pripravkov v les
Authors:ID Humar, Miha (Author)
Files:.pdf PDF - Presentation file, download (581,72 KB)
MD5: 1686F84BA740B9F1CAFEE5066716C00B
PID: 20.500.12556/dirros/495b698d-3783-465d-894e-daa96a36a0e9
 
Language:Slovenian
Typology:1.01 - Original Scientific Article
Organization:Logo SciVie - Slovenian Forestry Institute
Abstract:Baker-etanolaminski pripravki so trenutno ena izmed najpomembnejših skupin za zaščito lesa v tretjem in četrtem razredu izpostavitve. Kljub večletni komercialni uporabi celotni mehanizem vezave teh pripravkov v les še ni pojasnjen. Znano je, da se v les vežejo hitreje kot pripravki na osnovi bakra bakrovih in kromakromovih spojin. V literaturi pa še ni podatkov o tem, kdaj je ta reakcija končana in kateri dejavniki vplivajo nanjo. V prispevku je opisan vpliv časa impregnacije, lesne vrste (smrekovine in bukovine), temperature in koncentracije komercialnega baker-etanolaminskega zaščitnega pripravka Silvanolin na adsorpcijo bakra bakrovih spojin v lesne iveri. Vsebnost bakra v ivereh smo določali z rentgensko fluorescenčno spektroskopijo(XRF). Ugotovili smo, da je adsorpcija bakrovih učinkovin v les,impregniran z baker-etanolaminskimi pripravki, hiter proces. V prvih šestih urah impregnacije se adsorbira med 60 in 80 % navzetega bakra v les. Z višjo koncentracijo pripravka narašča tudi adsorpcija bakrovih učinkovin v iveri. Impregnacija pri 50 °C močno izboljša adsorpcijo bakrovih učinkovin v les.
Keywords:amini, baker, Fagus sylvatica, Picea abies, vezava v les, zaščita lesa
Publication status:Published
Publication version:Version of Record
Year of publishing:2008
Number of pages:str. [47]-54
Numbering:Vol. 85
PID:20.500.12556/DiRROS-7695 New window
UDC:630*84(045)=163.6
ISSN on article:0351-3114
URN:URN:NBN:SI:doc-SEZ49DFD
COBISS.SI-ID:2284198 New window
Publication date in DiRROS:12.07.2017
Views:4126
Downloads:1783
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Record is a part of a journal

Title:Zbornik gozdarstva in lesarstva. forest and wood science & technology
Shortened title:Zb. gozd. lesar.
Publisher:Gozdarski inštitut Slovenije, Biotehniška fakulteta, Oddelek za gozdarstvo in obnovljive gozdne vire, Biotehniška fakulteta, Oddelek za lesarstvo
ISSN:0351-3114
COBISS.SI-ID:6206978 New window

Secondary language

Language:Undetermined
Title:Adsorption of coper-ethanolamine preservatives in wood
Abstract:Copper-ethanolamine based preservatives are one of the most important wood preservatives for protection of wood in third and fourth use class. Despite the fact that they are commercially used for several years, complete mechanismof fixation in wood has been not resolved to date. It is clear that copper-ethanolamine system reacts with wood faster than copper-chromium based wood preservatives. It is not known, however, which parameters control this process of fixation and when it is finished. Influence of impregnation time, wood species (Norway spruce, beech), temperature and concentration of commercial copper-ethanolamine preservative solution Silvanolin on copper adsorption to wood particles is elucidated in this contribution. Concentrationof copper in wood particles was determined with X-ray fluorescence spectroscopy (XRF). The results confirmed that the reaction of copper-ethanolamine complexes in wood is a fast process. During the initial six hours of impregnation, between 60 and 80% of retained copper is adsorbed in wood. Copper adsorption is increasing with increasing concentration as well, and it can be significantly improved with impregnation at 50°C.


Collection

This document is a part of these collections:
  1. Acta Silvae et Ligni

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