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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20502 - Paper and wood

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

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

Name of the periodical

European Journal of Wood and Wood Products

ISSN

0018-3768

e-ISSN

—

Volume of the periodical

75

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

375-383

UT code for WoS article

000399708300009

EID of the result in the Scopus database

2-s2.0-84991096560