Properties and hygroscopic isotherm of cement-bonded partieboards and fiberboards made by carbon dioxide infection method and conventional methods

摘要

Poplar cement-bonded particleboards (CBPB) using the carbon dioxide injection method were made according to simatupang et al(1991). Cement-bonded fiberbords (CBFB)were made from recycled newspaper fibers. The proper ties of these fibers have been published elsewhere (Tadats and Simatupang 1993). The inorganic binder was a mixture of PZ 45F (70/100) and metakaoline (30/100) with 1, 5/100 Al_2(SO_4)_3 based on total binder. Metakaoline was obtained by heating Kaolinite (Riedel de Haen, Germany)at 750 deg.c for 6 h in a muffle oven. The calcined material was cooled in a desiccator and stored in air tight containers before use.