Mitteldichte Faserplatten (MDF) aus gebrauchten Oriented Strandboard (OSB)

摘要

Fibres for medium density fibre boards (MDF) were made from oriented strand boards (OSB) bonded with PMDI in the core and MUPF in the surface. Chips from OSB were pulped with sodium hydroxide. The fibres obtained therefrom were used for partial substitution of fresh fibres in MDF. The preliminary results reveal that recycled fibres decrease the thickness swelling enormously and has also a remarkable positive effect on the internal bond strength as well. However, the use of higher amounts (50%) of recycled fibres negatively impacts the bending strength.