F-58 構造用合板表面における真菌の成長速度に関する基礎実験 : 温湿度及びホルムアルデヒド放散速度の影響

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This paper describes impact of formaldehyde and hygrothermal conditions against fungal growth on the surface of plywood. Four types of plywood with different adhesives were made for this experiment, and emission rates of the plywood were measured by a small chamber method according to Japanese Test Standards. After samples (50x50x12mm) of the plywood were sterilized, mixed spore suspensions were sprayed on the samples. The samples were incubated in plastic chamber without fan in which RH levels were adjusted by saturated salt solutions at 5, 15, 25, 35℃. Fungal growth on the samples was analyzed under the stereo light microscope (magnification 40x), and evaluated by a test method of Japanese Test Standards regarding fungal growth on the surface of building materials. Current results of the experiments indicated the emission rate of formaldehyde affects initial stage of the fungal growth.
社団法人空気調和・衛生工学会の論文
2006-09-05