Abstract Scope |
In this work, the polyethylene glycol/boron nitride-expanded vermiculite shape-stabilized composite phase change materials (PBE ss-CPCMs) were prepared by using vacuum impregnation method. The effect of boron nitride on the thermal properties of PBE ss-CPCMs was analyzed in detail. It was found that the encapsulation capacity of PBE ss-CPCMs with 3 wt%, 6 wt%, 9 wt% and 12 wt% boron nitride was 66.9 wt%, 66.6 wt%, 65.7% and 64.2%, respectively. The heat transfer of PBE ss-CPCMs was enhanced by the boron nitride, while the latent heat remained available, which benefited from the constructed heat transfer path. Moreover, the PBE ss-CPCMs showed good chemical compatibility, thermal stability and reliability. |