成果報告書詳細
管理番号20110000000551
タイトル*平成22年度中間年報 革新的ノンフロン系断熱材技術開発プロジェクト/革新的断熱技術開発/次世代断熱発泡剤の研究開発(H19-H23)
公開日2011/7/8
報告書年度2010 - 2010
委託先名独立行政法人産業技術総合研究所
プロジェクト番号P07019
部署名環境部
和文要約和文要約等以下本編抜粋:1.研究開発の内容及び成果等 本研究ではフッ素系オレフィン類に対し、毒性、熱伝導率、温暖化評価、燃焼性評価、VOC評価、合成法など多方面から検討することで、断熱特性が優れ環境への負荷の小さい発泡剤を開発することを目的としている。平成22年度は以下の研究を行った。 1-1.候補化合物の合成法検討と試料の製造 前年度までの検討から発泡剤として有力な候補化合物が見出されてきたが、その評価のために試料が必要となることから、この化合物のキログラムスケールでの製造を検討した。
英文要約Title: Development of Next Generation Foam Blowing Agent (FY2007-FY2011) FY2010 Annual Report
Preparation of a candidate compound in kg scale was investigated. The aimed compound C was prepared by successive two step flow reactions without isolation of the intermediate compound. By this method, about 10 kg of compound C with more than 99 % purity was obtained. The obtained compound was given to companies participating in this project as a sample for evaluation. Gases thermal conductivities have been measured by a transient hot-wire method. The measured thermal conductivities of C was 12.6 mW/m・K at 323K. Stability of candidate compounds in system liquids was investigated. The candidate compounds were mixed with system liquids and heated, and then gas phase was analyzed. One of the candidates was found to decompose in system liquids. Further investigation suggested that amine component causes the decomposition. Rate constants for the reaction of OH radicals with sixteen fluoro-olefins have been measured using flash photolysis and laser photolysis method combined respectively laser induced fluorescence technique to monitor OH concentration. As a result, it has been found that atmospheric lifetimes of floro-olefins due to tropospheric OH are several days to one year. Total global warming indicators represented by number have been developed. New indicator CEWN (Carbon Dioxide Equivalent Temperature Change Number) was applied to the analyses of blowing agent. When CEWN (82) is used, that is, global warming of compound X is calculated at 82% of removal rate from the atmosphere, fluorinated olefin is evaluated as one of the best blowing agent in terms of lower global warming. Flammability limits were measured for compound N by the ASHRAE method. Flammability limits of N were 7.37-22.5 and 7.37-22.0 vol% for dry and wet air, respectively.
Burning velocity measurements of compound D mixed with air were carried out. The maximum burning velocity of D was 4.0cm/sec.
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