Volume 9
Issue 3
Wood Technology
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume9/issue3/abs-12.html
THE EFFECT OF AMOUNTS OF RAPE STRAW ADDED TO CHIPS ON PROPERTIES OF PARTICLE BOARDS DEPENDING ON THE TYPE OF BONDING AGENT
Dorota Dukarska, Dorota Dziurka, Janina Łęcka, Radosław Mirski
Department of Wood-Based Materials,
Poznań University of Life Sciences, Poland
ABSTRACT
Properties of particle boards with varying contents of rape straw were investigated, depending on the type of the applied bonding agent. Rape straw as a substitute of wood chips was added in the manufactured boards in the amounts of 0, 10, 20, 30, 50, 75 and 100%. Tests showed that it is possible to partially substitute wood chips with rape straw in the manufacturing process of particle boards resinated with MUPF, PF and PMDI resins. An up to 30% replacement of wood chips with rape straw in case of MUPF resin and up to 50% for PF resin makes it possible to produce particle boards, the mechanical properties of which meet the requirements of standard PN-EN 312-3. However, the addition of rape straw to boards resinated with MUPF and PF resins resulted in a considerable deterioration of their water resistance, proportional to the amounts of straw particles added to chips. In turn, the application of PMDI resin as a bonding agent makes it possible to manufacture boards with high water resistance and mechanical properties even at a 100% substitution of wood chips with rape straw.
Key words: rape straw, binding agents, lignocellulose board.
Dorota Dukarska
Department of Wood-Based Materials,
Poznań University of Life Sciences, Poland
Wojska Polskiego 38/42, 60-637 Poznan, Poland
Phone: +48 61 8487558
email: ddukar@au.poznan.pl
Dorota Dziurka
Department of Wood-Based Materials,
Poznań University of Life Sciences, Poland
Wojska Polskiego 38/42, 60-637 Poznan, Poland
email: ddziurka@up.poznan.pl
Janina Łęcka
Department of Wood-Based Materials,
Poznań University of Life Sciences, Poland
Wojska Polskiego 38/42, 60-637 Poznań, Poland
Phone: +48 61 8487419
email: janinal@up.poznan.pl
Radosław Mirski
Department of Wood-Based Materials,
Poznań University of Life Sciences, Poland
Wojska Polskiego 38/42, 60-627 Poznań, Poland
Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.