Biodegradable new charcoal board adsorbing VOCs as a building material

We newly developed charcoal board by adhering charcoal ponders with superfine natural fibers as binder. The superfine cellulose and collagen fibers were prepared from defiberized milk cartons arid leather scraps with a grinder respectively. The charcoal board adsorbed formaldehyde gas of 20 ppm to almost 0 ppm in two hour. And it is confirmed that the charcoal board adsorbed and desorbed moisture depending on the relative humidity of the environment When charcoal powder was adhered with the superfine fiber the ability of the performance of charcoal was maintained in the charcoal board The charcoal board was changed to the charcoal powder in the soil after 6 month When the charcoal board is thrown out, the binder is biodegraded and charcoal powder acts as soil remover. Finally the charcoal board can be expected to be applied for building materials of Healthy Housing