Biodegradable New Charcoal Board Adsorbing VOCs as a Building Material.

Accession number;02A0666609
Title;Biodegradable New Charcoal Board Adsorbing VOCs as a Building Material.
Author;SHIBANO KAZUNORI(Meisei Univ., Coll. of Sci. and Eng.)   YOSHIZAWA SHUJI(Meisei Univ., Coll. of Sci. and Eng.)   OGAWA YU(Tokyu Constr. Co., Ltd., Technol. Res. Cent.)   
Journal Title;Research Bulletin of Meisei University. Physical Sciences and Engineering
Journal Code:G0123B
ISSN:1346-7239
VOL.;NO.38;PAGE.41-44(2002)
Figure&Table&Reference;FIG.8, REF.7
Pub. Country;Japan
Language;Japanese
Abstract;We newly developed charcoal board by adhering of charcoal powders to superfine natural fibers as binder. The superfine cellulose and collagen fibers were prepared from defiberized milk cartons and leather scraps with a grinder, respectively. The charcoal board adsorbed formaldehyde gas from 20ppm to almost 0ppm in two hours. And it was confirmed that the carcoal board adsorbed and desorbed moisture depending on the relative humidity of the environment. When charcoal powder was adhered with the superfine fibers, the ability of the performance of charcoal was maintained in the charcoal board. The charcoal board in the soil was changed to the charcoal powder after 6 months. 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 to building materials of healthy housing. (author abst.)