New wood-based panel with imprinted 3D surface pattern and improved internal bonding

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F17%3A43909803" target="_blank" >RIV/62156489:43410/17:43909803 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s00107-016-1103-5" target="_blank" >http://dx.doi.org/10.1007/s00107-016-1103-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00107-016-1103-5" target="_blank" >10.1007/s00107-016-1103-5</a>

Jazyk výsledku

angličtina

Název v původním jazyce

New wood-based panel with imprinted 3D surface pattern and improved internal bonding

Popis výsledku v původním jazyce

This research is on a new development towards three-dimensional surfaces for wood-based panels, i.e., particleboards (PB). By imprinting a self-designed stainless steel grid on both sides of PB the following research questions were investigated: (1) feasability of the 3D-pattern imprintment during hotpressing of resinated PB furnishes, (2) assessment of mechanical properties of imprinted PB, and (3) finite element modelling to understand and optimize material properties, including veneer-added sandwich panels. Following a factorial experimental design PB were produced in the laboratory and cut specimens were tested according to standards. As a result, the 3D-pattern imprintment resulted in a much higher internal bonding: For the 500 kg/m3 PB the IB increase was 35 %, while for the 700 kg/m3 the increase was even 67 %. The vertical density profile showed a roof-like shape, with a high density level in the core layer. Bending strength and stiffness turned out to be much lower than for the control. Through finite element modeling (FEM) these property changes could be mechanically explained. A successful compensation for the reduced bending performance could be demonstrated through two-side veneer sheet additions. FEM is also shown to be instrumental for the property optimization of the 3D-pattern imprinted PB. Since IB has significantly increased, the overall PB density could be reduced, meaning a light panel is required for the same product performance. The new 3D-pattern imprinted PB also constitutes a decorative design feature, which could lead to various product applications. Since the imprintment process is easy to execute, this new PB product option might be easily adopted by industry. (C) 2016 Springer-Verlag Berlin Heidelberg

Název v anglickém jazyce

New wood-based panel with imprinted 3D surface pattern and improved internal bonding

Popis výsledku anglicky

This research is on a new development towards three-dimensional surfaces for wood-based panels, i.e., particleboards (PB). By imprinting a self-designed stainless steel grid on both sides of PB the following research questions were investigated: (1) feasability of the 3D-pattern imprintment during hotpressing of resinated PB furnishes, (2) assessment of mechanical properties of imprinted PB, and (3) finite element modelling to understand and optimize material properties, including veneer-added sandwich panels. Following a factorial experimental design PB were produced in the laboratory and cut specimens were tested according to standards. As a result, the 3D-pattern imprintment resulted in a much higher internal bonding: For the 500 kg/m3 PB the IB increase was 35 %, while for the 700 kg/m3 the increase was even 67 %. The vertical density profile showed a roof-like shape, with a high density level in the core layer. Bending strength and stiffness turned out to be much lower than for the control. Through finite element modeling (FEM) these property changes could be mechanically explained. A successful compensation for the reduced bending performance could be demonstrated through two-side veneer sheet additions. FEM is also shown to be instrumental for the property optimization of the 3D-pattern imprinted PB. Since IB has significantly increased, the overall PB density could be reduced, meaning a light panel is required for the same product performance. The new 3D-pattern imprinted PB also constitutes a decorative design feature, which could lead to various product applications. Since the imprintment process is easy to execute, this new PB product option might be easily adopted by industry. (C) 2016 Springer-Verlag Berlin Heidelberg

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20502 - Paper and wood

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

European Journal of Wood and Wood Products

ISSN

0018-3768

e-ISSN

—

Svazek periodika

75

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

375-383

Kód UT WoS článku

000399708300009

EID výsledku v databázi Scopus

2-s2.0-84991096560