Influence of beech particle size used in surface layer on bending strength of three-layer particleboard

Medved, Sergej (author), Resnik, Jože (author)

It is well known that wood species and particle size used influence the bending strength of the three-layer particleboard. The purpose of this research was to determine how the size of beech (Fagus sylvatica L.) particlesinfluences the bending strength of the three-layer particleboard, where size of particles used was altered in surface layer only. Beech wood particles of five different sizes were used and blended with UF adhesive. The results show that the bending strength of boards increases with increasing particle specific surface area, increasing surface layer compaction ratio and surface layer density, while bending strength decreases with increasing surface covered with adhesive.

• Language: English
• Keywords: iverne plošče, upogibna trdnost, bukovo iverje, velikost iverja, faktor zgostitve zunanjega sloja, stopnja oblepljenosti
• Work type: Not categorized
• Typology: 1.01 - Original Scientific Article
• Organization: BF - Biotechnical Faculty
• Year: 2003
• Number of pages: Str. 197-207
• Numbering: Št. 72
• PID: 20.500.12556/RUL-28968
• UDC: 630*862.2
• ISSN on article: 0351-3114
• COBISS.SI-ID: 1177481
• Publication date in RUL: 11.07.2014

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

Secondary language

• Language: Slovenian
• Title: Vpliv velikosti bukovega iverja, uporabljenega v zunanjem sloju na upogibno trdnost trislojne iverne plošče

Abstract

Znano je, da vrsta lesa in velikost iverja vplivata na upogibno trdnost trislojnih ivernih plošč. Namen posebej zasnovane raziskave je bil ugotoviti, kako velikost bukovega (Fagus Sylvatica L.) iverja vpliva na upogibno trdnost trislojnih ivernih plošč, če je velikost bukovega iverja spremenjena samo v zunanjem sloju. Uporabljeno je bilo bukovo iverje petih različnih velikosti. Iverje je bilo oblepljeno z UF lepilom. Rezultati meritev so pokazali, da upogibna trdnost ivernih plošč narašča z naraščanjem specifične površine iverja, faktorja zgostitve zunanjega sloja in prostorninske mase zunanjega sloja, medtem ko z naraščanjem oblepljenosti upogibna trdnost pada.

• Keywords: particleboard, bending strenth, beech particles, particle size, surface layer compaction ratio, surface covered with adhesive