Volume 6/issue2/volume6
Issue 2
Wood Technology
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume6/issue2/volume6/issue2/wood/abs-02.html
THE EFFECT OF GRAFTING PARTICLES WITH ACETOACETYL GROUPS ON THE PROPERTIES OF PARTICLEBOARDS
Dorota Dziurka, Janina Łęcka, Radosław Mirski
ABSTRACT
The aim of the study was to investigate the acetoacetylation of particles on the formaldehyde content and the physical and mechanical properties of particleboards, glued with the UF resin. The produced particleboards were subjected to the following tests: internal bond, modulus of rupture, modulus of elasticity, swelling in thickness after 24 hours of soaking in water, the content and the emission of formaldehyde. Results of the study make it possible to state that spreading ethyl acetoacetate on the particles before gluing, results in the decrease in the content as well as the emission of formaldehyde from particleboards, without causing essential changes in their physical and mechanical properties.
Key words: UF resin, particleboards, acetoacetyl groups.