Composites of fluoropolymers (FKMs) and nanocarbon fillers have been considered as sealing materials for hydrogen fuel storage. Here, we structurally and dynamically characterize FKM chains adsorbed onto single-walled carbon nanotubes (SWCNTs) and carbon black (CB), as prepared by a solvent leaching method. The glass transition temperatures for FKMs adsorbed onto SWCNTs and CB were found to be higher than the bulk value, and their extent was more remarkable for SWCNTs. The discrepancy in FKM mobility between the two fillers was explained in terms of the manner of chain adsorption via the atomic-scale surface roughness, rather than the surface chemistry, of the fillers.

含氟聚合物 (FKM) 和纳米碳填料的复合材料已被认为是用于储存氢燃料的密封材料。在这里，我们在结构和动态上表征了吸附在单壁碳纳米管 (SWCNT) 和炭黑 (CB) 上的 FKM 链，如通过溶剂浸出法制备的。发现吸附在 SWCNT 和 CB 上的 FKM 的玻璃化转变温度高于体值，并且它们的程度对于 SWCNT 更为显着。两种填料之间 FKM 迁移率的差异是根据通过原子级表面粗糙度而不是表面化学性质的链吸附方式来解释的。