Composite phase change materials embedded into cellulose/polyacrylamide/graphene nanosheets/silver nanowire hybrid aerogels simultaneously with effective thermal management and anisotropic electromagnetic interference shielding

Exploiting an advanced material simultaneously with effective thermal management (TM) and electromagnetic interference (EMI) shielding capacity is ungently demanded yet challenging for the miniaturized integrated electronics. Anisotropic networks can be impregnated phase change materials (PCMs) to fabricate multifunctional shape-stable PCMs (ss-CPCMs) excellent TM EMI shielding, which rarely reported. Herein, anisotropic cellulose/polyacrylamide/graphene nanosheet/silver nanowire (CPGxAy) hybrid aerogels were successfully prepared using directional freeze-drying method, then utilized as supporting skeletons embed polyethylene glycol (PEG) via vacuum-assistant impregnation. Profited by synergistic effect of graphene nanosheets (GNPs) silver nanowires (AgNWs), resultant glycol@cellulose/polyacrylamide/graphene aerogel (PEG@CPGxAy) ss-CPCMs exhibit fascinating conductivity (TC) 0.84 W/m·K (200% increase in comparison that pure PEG) average effectiveness (SE) 71.08 dB along transverse direction 35.21 longitudinal direction, while remaining high melting crystallization enthalpy efficiency 93.47% 93.08%, respectively. In addition, PEG@CPGxAy also display great shape stability, cyclic reusability storing/releasing latent heat processes. This investigation sheds new light on designing fabricating pretty comprehensive properties modern