Number of the records: 1
Functionality of beech bark in adhesive mixtures used in plywood and its effect on the stability associated with material systems
SYS 0271284 005 20250619130957.6 014 $a 000467767400104 $2 CCC 014 $a 000467767400104 $2 WOS CC. SCIE 014 $a 31010011 $2 MEDLINE 014 $a 31010011 $2 PubMed 014 $a 2-s2.0-85064752243 $2 SCOPUS 017 70
$a 10.3390/ma12081298 $2 DOI 035 $2 CREPC2 $a biblio/124064 100 $a 20190530d2019 m y slo 03 ba 101 0-
$a eng 102 $a CH 200 1-
$a Functionality of beech bark in adhesive mixtures used in plywood and its effect on the stability associated with material systems $f Roman Réh, Rastislav Igaz ... [et al.] 330 0-
$a The results of research into utilizing grinded beech bark in order to substitute commonly used fillers in urea formaldehyde (UF) adhesive mixtures to bond plywood are presented in the present study. Four test groups of plywood with various adhesive mixtures were manufactured under laboratory conditions and used for experimentation. Plywood made using the same technology, with the common filler (technical flour), was used as a reference material. Three different concentrations of grinded beech bark were used. The thermal conductivity of the fillers used, viscosity and its time dependence, homogeneity and the dispersion performance of fillers were evaluated in the analysis of adhesive mixture. The time necessary for heating up the material during the pressing process was a further tested parameter. The produced plywood was analyzed in terms of its modulus of elasticity, bending strength, perpendicular tensile strength and free formaldehyde emissions. Following the research results, beech bark can be characterized as an ecologically friendly alternative to technical flour, shortening the time of pressing by up to 27%. At the same time, in terms of the statistics, the mechanical properties and stability of the material changed insignificantly, and the formaldehyde emissions reduced significantly, by up to 74%. The utilization of bark was in compliance with long-term sustainability, resulting in a decrease in the environmental impact of waste generated during the wood processing 463 -1
$1 001 umb_un_cat*0290718 $1 011 $a 1996-1944 $1 200 1 $a Materials $v Vol. 12, no. 8 (2019), pp. 1-15 $1 210 $a Basel $c Multidisciplinary Digital Publishing Institute $d 2019 606 0-
$3 umb_un_auth*0275542 $a buková kôra $X beech bark 606 0-
$3 umb_un_auth*0152683 $a ecological analysis 606 0-
$3 umb_un_auth*0037302 $a výroba $X production 608 $3 umb_un_auth*0273282 $a články $X journal articles 615 $n 62 $a Technika 675 $a 62 700 -1
$3 umb_un_auth*0235817 $a Réh $b Roman $4 070 $9 24 701 -1
$3 umb_un_auth*0161213 $a Igaz $b Rastislav $4 070 $9 24 701 -1
$3 umb_un_auth*0000016 $a Krišťák $b Ľuboš $4 070 $9 24 701 -1
$3 umb_un_auth*0100006 $a Ružiak $b Ivan $4 070 $9 8 701 -1
$3 umb_un_auth*0121073 $a Gajtanska $b Milada $4 070 $9 4 701 -1
$3 umb_un_auth*0275541 $a Božíková $b Monika $4 070 $9 8 701 -1
$3 umb_un_auth*0140697 $a Kučerka $b Martin $f 1980- $p UMBFP07 $9 8 $4 070 $T Katedra techniky a technológií 801 $a SK $b BB301 $g AACR2 $9 unimarc sk T85 $x existuji fulltexy
Number of the records: 1