Počet záznamov: 1
Effect of different fire retardants on birch plywood properties
SYS 0082546 LBL 00000naa^^22^^^^^^^^450 005 20190401125542.1 017 70
$a 10.17423/afx.2016.58.1.07 $2 DOI 100 $a 20160321d m y0sloc0103 ba 101 0-
$a eng 102 $a SK 200 1-
$a Effect of different fire retardants on birch plywood properties $f Pavlo Bekhta ... [et al.] 215 $c Obr., tab. 320 $a Lit. 330 $a The feasibility of applying conventional flame retardants usually used to improve fire behaviour of solid wood was evaluated in this study for the production of fire-resistant plywood panels. For making plywood the birch (Betula verrucosa Ehrh.) veneer and commercial phenol-formaldehyde glue resin were used. Five different standardized fire-retardants were chosen for veneer impregnation. Firstly, veneer sheets were treated by immersion in 20% aqueous solution of each fire-retardant. Diffusive and capillary impregnation was evaluated to select the most effective treatment of veneer. Absorption of impregnation solution in veneers was determined. Afterwards, five-layer plywood panels were prepared from impregnated veneers in laboratory press at the following pressing parameters: pressure of 2.0 MPa, temperature of 130 °C, time of 10 min and glue spread of 120 g/m2. Shear strength and fire resistance of plywood were determined. It was found that diffusive impregnation of moist veneer, in comparison with capillary impregnation of dry veneer, is characterized by the less salting-out of fire-retardants on the veneer surface and their more homogeneous distribution in middle of veneer. It was proved that conventional fire-retardants for solid wood can be used for plywood and also allow re-classification of plywood from the group of increased flammability materials to the group of hard inflammable materials. 463 -1
$1 001 sldk_un_cat*0082463 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Roč. 58, č. 1 (2016), s. 59-66 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2016 610 1-
$9 sldk_un_auth*h014852 $a brezové preglejky $X birch plywoods 610 1-
$9 sldk_un_auth*h014549 $a retardačné látky $X fire retardant agents 610 1-
$9 sldk_un_auth*h010991 $a impregnácia $X impregnation 610 1-
$9 sldk_un_auth*h015367 $a šmyková pevnosť $X shear strength 610 1-
$9 sldk_un_auth*h014694 $a úbytok hmotnosti $X weight loss 610 1-
$9 sldk_un_auth*h014458 $a vlastnosti preglejok $X plywood properties 675 $a 630*832.282:630*176.1 $v 1. stred. $z slo 701 -1
$3 sldk_un_auth*p0034655 $a Bekhta $b Pavlo $4 070 701 -1
$3 sldk_un_auth*0041687 $a Bryn $b Olesya $4 070 701 -1
$3 sldk_un_auth*p0016396 $a Sedliačik $b Ján $f 1968- $p TUZDFNDV $4 070 $T Katedra nábytku a drevárskych výrobkov 701 -1
$3 sldk_un_auth*p0034625 $a Novák $b Igor $4 070 801 -0
$a SK $b ZV001 $c 20160321 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/07-01-16_1_0.pdf
Počet záznamov: 1