成果報告書詳細
管理番号20160000000325
タイトル*平成27年度中間年報 水素利用技術研究開発事業 燃料電池自動車及び水素ステーション用低コスト機器・システム等に関する研究開発 水素ステーションの高圧水素用ホースとシールシステムに関する研究開発 (日本合成化学工業株式会社)
公開日2016/9/2
報告書年度2015 - 2015
委託先名日本合成化学工業株式会社
プロジェクト番号P13002
部署名新エネルギー部
和文要約
英文要約Research and Development of Technology for Hydrogen Utilization/
Research and Development of Low-cost Equipment and System for Fuel Cell
Vehicles and Hydrogen Stations/Research and Development of High-pressure Hydrogen Hose and Sealing System for Hydrogen Stations/ (FY2013-FY2015)
FY2015Annual Report

The flexible high-pressure dispenser hose applicable to 82MPa hydrogen supply system is one of the most important key components which are eager for development. Fiber-reinforced nylon11 has been expected to be a main material for such dispenser hose. However, there is some fear of damage in nylon11 due to its poor physical properties after direct contact to hydrogen under low temperature in the range of 0 to -40 ℃. The damage is considered to be diminished by the improvement or the displacement of nylon and/or by adding the high hydrogen barrier layer to the inner side of the dispenser hose. We reported the improvement of the nylon by means of polymer alloy technique last year, however, could not evaluate the hydrogen resistance.In this year, two types of tube, monolayer and bilayer, have been prepared and evaluated by the repeated exposure test to the high pressure hydrogen atmosphere. The monolayer tube has the softened nylon layer and the bilayer one does the additional layer of the softened EVOH to the inner side of the nylon. No change in appearance of the tube was observed after the repeated exposure test at room temperature. No voids nor cracks were found by X-ray CT analysis of the tube after the exposure.The exposure test was also carried out at -40℃, the temperature of the hydrogen precooled during the charge of it.
Both tubes showed no change in appearance and proved hydrogen resistance by the exposure under such low temperature.We plan the development of the hydrogen-proof resin even at higher hydrogen pressure by means of the knowledge applicable to 82MPa dispenser hose.
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