Review: 1980 Particleboard Literature in Non-U.S. Journals

The reports discussed in this review are divided into three sections. The first, on particleboard manufacture, includes the characteristics of a series of urea resins made with different proportions of urea and formaldehyde and the properties of particleboards made with them, mathematical calculation of the amount of formaldehyde escaping from a board, the Verkor process for treating particleboard to eliminate formaldehyde odor, and determination of extractable formaldehyde in a particleboard. Other studies include the durability of resin binders for exterior particleboard, polymerization of a particleboard binder with an electron accelerator, use of DMSO and ammonia in a particleboard, identification of the type of binder in a particleboard, use of a mixture of urea and phenolic resins as a particleboard binder, and particleboard plant design considerations. The second section, Particleboard Properties and Test Methods, suggests the use of torsion tests in place of tension perpendicular tests to determine fiber bonding strength, study of the creep deformation produced in a board subjected to a bending load, an acoustic method for determining particleboard strength, study of the effects of weathering on particleboard properties, study of particleboard swelling in a humid atmosphere, and the use of a laser scanning device for monitoring particleboard surfaces. The third section, Particleboard Raw Materials, reports the world shortage of wood and list several substitutes for wood for particleboard, discusses South American Kiri wood for particleboard which has both strength and insulation properties, and discusses problems with the use of whole trees for particleboard.

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