Open AccessSome Physical and Mechanical Properties of Borate-Treated Oriental Beech Wood
Author(s) -
Hakan Simsek,
Ergün Baysal
Publication year - 2015
Publication title -
drvna industrija
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.287
H-Index - 19
eISSN - 1847-1153
pISSN - 0012-6772
DOI - 10.5552/drind.2015.1356
Subject(s) - beech , boron , materials science , composite material , forestry , chemistry , geography , organic chemistry
This study was designed to determine some physical properties such as surface roughness and oven dry density, and some mechanical properties such as modulus of elasticity (MOE) of borate-treated wood specimens. Wood specimens were prepared from Oriental beech (Fagus orientalis L.). Ammonium pentaborate octahydrate (APBO), ammonium tetrafluoroborate (ATFB), and sodium tetrafluoroborate (STFB) were used as borates. Before tests, wood specimens were impregnated with 0.25, 0.50, 1.50, and 3.00 percent aqueous solutions of borates. The results showed that borate treatment caused increases in oven dry density and surface roughness, while it decreased MOE values of Oriental beech. Generally, higher concentration levels of borates resulted in higher oven dry density and lower MOE of Oriental beech wood specimens.Cilj istraživanja bio je odrediti neka fizikalna obilježja kao što su hrapavost površine i gustoća u apsolutno suhom stanju te određena mehanička svojstva kao što su modul elastičnosti (MOE) uzoraka drva impregniranih boratima. Uzorci drva izrađeni su od orijentalne bukovine (Fagus orientalis L.). Amonij pentaborat oktahidrat (APBO), amonij tetrafluoroborat (ATFB) i natrij tetrafluoroborat (STFB) upotrijebljeni su kao borati. Prije ispitivanja, uzorci drva impregnirani su otopinom vode i 0,25 %, 0,50 %, 1,50 % i 3,00 % borata. Rezultati su pokazali da impregniranje drva orijentalne bukovine boratima pridonosi porastu gustoće u apsolutno suhom stanju i povećanju hrapavosti površine, a smanjuju se vrijednosti modula elastičnosti drva. Općenito, viša razina koncentracije borata rezultirala je većom gustoćom u suhom stanju i smanjenim modulom elastičnosti bukovih uzoraka