Abstract
Thermal energy storage using phase change materials (PCMs) plays a crucial role in solving the contradiction between energy supply and demand. In this paper, we proposed a novel approach to design a functionalized process for the matrix which was modified with polydopamine and silver nanoparticles for improving the crystallization process of polyethylene glycol (PEG) PCMs which were bound onto the surface and the interior of the mesoporous silica by adjusting the size and shape of pore systems, the hydrogen bonding force between PEG molecules and carriers. And the results suggested that the prepared supporting materials exhibited prominent chemical compatibility with PEG and a great enhancement for the thermal conductivity (34.0%) with the sequential modification of polydopamine and silver nanoparticles. The composite ss-PCMs also exhibited excellent thermal reliability after 10 thermal cycles, indicating that the emerging composite ss-PCMs had favorable potential in the practical applications.
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