▎ 摘　　要

Hydrophobic polymeric coatings with high thermal conductivity have many important implications such as efficient surface heat dissipation in systems that heat up due to friction and as high thermal inertia interfaces in energy conversion or storage devices. In this work, we fabricated thermally conducting nanocomposite coatings from poly(vinylidenefluoride) or PVDF and graphene nanoplatelets (GnPs) having thermal conductivities as high as 13 W/mK. Coatings were made on commercial aluminum foils and plates by using ink spray deposition and subsequent hot pressing to compact the dispersed GnPs. In order to eliminate coating deweting (coating in homogeneity) during spray deposition, substrate surface skewness (Ssk) and kurtosis (Sku) values were changed to adjust substrate roughness profiles toward textures rich in microscale valleys. As sprayed coatings were hydrophobic (similar to 130 degrees) but their hydrophobicity declined to 110 degrees due to hot pressing even for highly filled coatings (60 wt%. GnPs). Measured thermal effusivity, epsilon, of the coatings containing 40 wt% GnPs was close to 6000 Ws(1/2)/m(2)K indicating potential temperature sensing capability, and as functional coatings for dynamic capture and storage of ambient thermal energy.