Abstract:

This paper used larch particle and self made isocyanate resin, studied that how the factors of particleboard manufacturing, which is the density, pressing temperature, pressing time, moisture content, resin consumption and wax consumption affected on the difference of 24 h TS and irTS of particleboard by orthogonal double experiments, and studied the effects of particle materials and the adhesives in common use on the difference by one factor double experiment, it showed only the density of the board and the particle materials are the notable factors affected the TS Parallelity. Through analyzing some results of scholars' experiments, it found that particle geometry and particle pretreament are two another notable factors affected the TS Parallelity. The reason of the former is resulted from the different velocity and extent of wood absorption swelling, while the latter are from the difference of wood absorption caused by the conditions of experiments.

Key words: Particleboard, Deformation in thick, TS　Parallelity, TS