By incorporating carbon nanotubes (CNTs) and graphene nanomaterials with aromatic sp2 carbon structures, we have specifically tuned filled ethylene propylene diene monomer elastomer (EPDM) seal and gasket composite materials for radiation resistance. Our results show that CNTs and graphene have an increased ability to stabilize the EPDM matrix compared to standard carbon black (CB) as a radiation-resistant filler. Graphene outperforms both CNT and CB fillers when considering surface damage under conditions where beta exposure is an issue. Both graphene and CNT fillers offer significantly reduced changes in glass transition temperature under prolonged exposure to tritium compared to CB-filled standards, with a 2.5-fold and almost 5-fold reduction, respectively. Thus, CNT- and graphene-filled O-ring materials could be designed that would maintain acceptable seals significantly longer than currently used composites.

通过并入具有芳香族sp2碳结构的碳纳米管（CNT）和石墨烯纳米材料，我们专门调整了填充的乙烯丙烯二烯单体弹性体（EPDM）密封和垫片复合材料的抗辐射性。我们的结果表明，与作为抗辐射填料的标准炭黑（CB）相比，CNT和石墨烯具有更高的稳定EPDM基体的能力。考虑到在暴露于β的情况下的表面损伤，石墨烯的性能优于CNT和CB填料。与CB填充的标准品相比，石墨烯和CNT填充剂在长时间暴露于tri的情况下均可显着降低玻璃化转变温度的变化，分别降低2.5倍和几乎5倍。从而，