By: NCUBE E. .; MANSFIELD-WILLIAMS H. .; IRLE M. .;
Abstract:
The properties of a particle in a particleboard are dependent on the conditions surrounding it and these, in turn,
change throughout the hot-pressing cycle and are therefore dependent on the location of the particle within the
mattress. The behaviour of a mattress and its subsequent behaviour as a final product is an average of the
particles that make up the product. Models to predict the distribution of particles in a mattress and its
compression behaviour have been developed. What is needed is a method to observe the rheological behaviour
of individual wood particles during the compression phase of hot-pressing cycle in order to improve
understanding of the hot-pressing stage. Such a method is presented in this paper. This work will contribute to
the development of a mattress consolidation model which combines deformation of a mattress and particles
during hot-pressing.
Keywords: Cell wall collapse, Compression behaviour, Stress relaxation, Dimensional stability, Wood particle
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