50 research outputs found
How Heterogeneity Matters in Water-Soil Environmental Research
é沢倧åŠå€§åŠé¢èªç¶ç§åŠç 究ç§Scedule:17-18 March 2003, Vemue: Kanazawa, Japan, Kanazawa Citymonde Hotel, Project Leader : Hayakawa, Kazuichi, Symposium Secretariat: XO kamata, Naoto, Edited by:Kamata, Naoto
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žåºäŸ¡,åå¿æž©åºŠçã®èŠå ãšåŸãããçºæ³¡äœã®ç±äŒå°ç,匷床,å¯åºŠçã®ç©æ§ãšã®çžé¢æ§ãæ€èšã,ç¯çšæç±æãšããŠå©çšããããã®çºæ³¡äœåæã®æé©æ¡ä»¶ã調æ»ãããå¹³æ15,16幎床ã®ç 究ã«ãŠ,PLL303溶åªã䜿çšããå Žåã«ã¯æ¶²åæšæç²åºŠãé«ã,åå¿æž©åºŠã¯423K,PCL205Uã䜿çšããå Žåã«ã¯æ¶²åæšæç²åºŠãäœã235Kã§åæã§ããããšãå€ã£ããå¹³æ17幎床ã®ç 究ã§ã¯,溶åªãšããŠPLL303ãšPCL205Uã®æ··å溶åªãçšãããš,åå¿æž©åºŠ313ã343Kã§æ¶²åæšæã®ç²åºŠã«åãŒã枩床ã®åœ±é¿ãã»ãšãã©èªãããã,åäžè£œåãäœããããããšãå€ã£ãããŸã,åŸæ¥ã®æç±æãšåçã®æç±æ§èœãæã€çºç ²äœã343K以äžã®äœæž©ã§åæã§ããããšãæãããšãªã£ããWoody biomass is the renewable organic resources, and it has the feature of absorbing and fixing carbon dioxide. It is also paid attention as the energy resource of environmental harmony type due to its abundance. A much amount of wood waste is,however, being scraped without being used. Therefore, it is necessary to use the wood waste effectively from a viewpoint of global environmental conservation and zero emission. General heat insulators such as the glass wool, the polystyrene foam and polyurethane foam are being scraped as industrial waste. And environmental disruption of waste materials have been developing rapidly.In this study, wood waste was liquefied by Polyol in the presence of sulfuric acid as a catalyst, and the foam was synthesized by using liquefied wood. In addition, some properties of liquefied wood and physical properties of the foam synthesized in various conditions were evaluated, and compared to that in heat insulator for construction.The viscosity and the hydroxyl value of liquefied wood were controlled by mixing PLACCEL303 and PLACCEL205U used as solvent. The correlation between the thermal conductivity and the density or state of the bubble of foam were investigated. The high foam magnification and low density were subjected to synthesize high thermal insulating properties. We have understood that the thermal conductivity probably increases by the influence of the radiation of heat transmission, even if the density is low. It was found that the uniform and minuteness diameter of the bubble were required to improve the thermal insulating properties.ç 究課é¡/é åçªå·:15310049, ç 究æé(幎床):2003-2005åºå
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