成果報告書詳細
管理番号20160000000324
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 (一般財団法人化学物質評価研究機構)
公開日2016/10/28
報告書年度2015 - 2015
委託先名一般財団法人化学物質評価研究機構
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Title: 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 Low-cost Equipment, System and their Materials for Hydrogen Stations/ Research and Development of High-pressure Hydrogen Hose and Sealing System for Hydrogen Stations (FY2013 – FY2015) FY2015 Annual Report

1.1 The research for the influence to ethylene-propylene elastomer (EPDM) which were exposed to high-pressure hydrogen.
 The hydrogen exposure for sulfur cross-linked EPDM of which composition has various silica contents and silane coupling agents was performed at pressure of 90 MPa for 24 hours and followed decompression to atmospheric pressure for FY2014. Therefore the difference of properties before and after high-pressure hydrogen exposure up to 5 times was slight.To evaluate the effects of the exposure in detail, specimens which were exposed for 20 times, were investigated for FY2015.
(1) Cross-section of specimens was observed by scanning electron microscope to understand inner destruction arisen by the exposure of 20 times in specimens.
(2) Tensile property, hardness, low temperature property, permeability to gas and dynamic viscoelasticity were measured for specimens with 30 phr silica before and after the exposure, to reveal how the high-pressure hydrogen exposure of 20 times affects to physical properties of the specimens.
(3) Composition, glass transition temperature and crosslink density were measured for specimens with 30 phr silica before and after the exposure. Change in chemical structure of specimens was measured by fourier transform-infrared spectroscopy and solid-state and swollen-state nuclear magnetic resonance spectroscopy.
 The main content of obtained from the research in fiscal year 2015 is as follows:
(1) The exposure of 20 times grew up severe blisters in specimens. However, increased number of the exposure would decelerate growth of blister. Relatively slight inner destruction was observed for specimens with 30 phr silica and with 3-mercaptopropyltrimethoxysilane or 3-methacryloxypropyltrimethoxysilane coupling agent by the exposure of 20 times, compared with others.
(2) Hardness and tensile stress tended to decrease after the exposure of 20 times further. TR test indicated that low temperature property of specimens was maintained before and after the exposure. Dynamic viscoelasticity measurement suggested temperature dependence of storage and loss modulus was not affected by the exposure. Furthermore, no obvious change of permeability to gas was observed after the exposure.
(3) No change in chemical structure was observed for specimens after the exposure up to 20 times, compared with before the exposure.

1.2 Preparation of EPDM with silica and TESPT as a coupling agent.
 It was found that the type of silane coupling agent affects influence of the high-pressure hydrogen exposure for EPDM. So specimens with EPDM and TESPT coupling agent were prepared.

1.3 Preparation of EPDM with carbon black.
 It was suggested that dispersion, agglomeration and aggregation of filler contribute to hydrogen properties of EPDM. So specimens having various particle aggregate size, particle size or degrees of dispersion, were prepared from EPDM and carbon black.
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