TY - JOUR A1 - Theiler, Géraldine A1 - Cano Murillo, Natalia A1 - Halder, Karabi A1 - Balasooriya, Winoj A1 - Hausberger, Andreas A1 - Kaiser, Andreas T1 - Effect of high-pressure hydrogen environment on the physical and mechanical properties of elastomers N2 - This study presents the influence of high-pressure hydrogen environment on the physical and mechanical properties of two types of cross-linked hydrogenated acrylonitrile butadiene rubbers. Based on the CSA/ANSI standard, static exposures in hydrogen experiments were performed up to 100 MPa at 120 °C. Characterization before and after exposure was conducted by means of density and hardness measurements, dynamic mechanical analysis (DMA), tensile tests, compression set, FT-IR and AFM analyses to assess effects after decompression. While the effect of high-pressure exposure is significant immediately after exposure, most of the physical and mechanical properties recover after 48 hours. FT-IR, AFM, SEM and compression set results indicate, however, permanent effects. KW - Hydrogen KW - Mechanical properties KW - Elastomers KW - High-pressure hydrogen environment PY - 2024 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-597102 DO - https://doi.org/10.1016/j.ijhydene.2024.01.148 SN - 0360-3199 VL - 58 SP - 389 EP - 399 PB - Elsevier Ltd. AN - OPUS4-59710 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Clute, C. A1 - Balasooriya, Winoj A1 - Cano Murillo, Natalia A1 - Theiler, Géraldine A1 - Kaiser, A. A1 - Fasching, M. A1 - Schwarz, Th. A1 - Hausberger, A. A1 - Pinter, G. A1 - Schloegl, S. T1 - Morphological investigations on silica and carbon-black filled acrylonitrile butadiene rubber for sealings used in high-pressure H2 applications N2 - Effects of NBR formulations on properties for high-pressure gas systems were tested. Functionalized silica enhances typical properties to a comparable range like CB. The balance of additives results in suitable RGD performance. Silica filled NBR shows lower H2 uptake compared to non-plasticized CB filled NBR. Morphology of CB filled NBR is less affected by H2 than silica filled grades. KW - High-pressure hydrogen gas KW - Sealing KW - Acrylonitrile butadiene rubber KW - Filler-rubber-interaction KW - Rapid gas decompression (RGD) PY - 2024 DO - https://doi.org/10.1016/j.ijhydene.2024.04.133 SN - 0360-3199 VL - 67 SP - 540 EP - 552 PB - Elsevier Ltd. AN - OPUS4-60559 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Cano Murillo, Natalia A1 - Balasooriya, Winoj A1 - Theiler, Géraldine T1 - Effect of hydrogen environment on the physical and mechanical properties of elastomers N2 - The development of a robust hydrogen infrastructure poses challenges to materials exposed to high pressurized hydrogen environments. Polymeric materials, which are expected to perform as seals, gaskets, O-rings, hoses among other applications face high risk of damage due to rapid gas decompression (RGD) which might cause operational safety issues. In this study, we intend to assess the effects of a high pressurized hydrogen environment on carbon black filled (CB) elastomers. The materials were exposed to 100 MPa hydrogen atmosphere at room temperature and at 85°C. Ex-situ characterization was performed during the first 30 minutes after decompression and repeated two days after the exposure when total gas desorption has taken place. The physical and mechanical characteristics of the materials were determined by means of density and volume change, hardness and tensile tests, and dynamic mechanical analysis. T2 - EHEC, the European Hydrogen Energy Conference 2024 CY - Bilbao, Spain DA - 06.03.2024 KW - High pressurized Hydrogen KW - Sealing Materials KW - Carbon Black Filled Elastomers PY - 2024 AN - OPUS4-60706 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -