Construction of hexagonal boron nitride@polystyrene nanocomposite with high thermal conductivity for thermal management application

An overview of boron nitride based polymer nanocomposites

“…[ 115 ] Zhang and coworkers described the synthesis of a Carboxylated polystyrene‐coated hydroxylated BN[BN‐OH@PS‐COOH] nanocomposite by following in situ polymerization and subsequent compression molding. [ 116 ] BN‐OH@PS‐COOH nanocomposite exhibited outstanding mechanical and thermal properties.…”

Improving thermal conductivities of textile materials by nanohybrid approaches

“…The thermal conductivity of Ag-BNNT/CNF composite reached to its maximum as 20.9 W m −1 K −1 with 25 wt % BNNT and 0.199 wt % Ag, compared with 1.45 W m −1 K −1 of the pure CNFs, which also maintained its thermal stability after 30 heating/cooling cycles. In a recent study by Zhang and coworkers, h-BN/PS nanocomposites were prepared by the in situ polymerization of carboxylated PS on hydroxylated BNNS, followed by vacuum filtration and hot-pressing ( Han et al., 2020 ). The thermal conductivity of the obtained PS-COOH/BNNS-OH/PS composites arrived at 1.131 W m −1 K −1 with 12 wt % BN-OH addition, which is 6.1 and 3.6 times higher than pure PS and unmodified BN/PS composites due to the noncovalent interactions between PS-COOH and BN-OH.…”

Development and Challenges of Thermal Interface Materials: A Review

“…Their TC depends mainly on the filler type, shape, size, defect, load rate, surface roughness, edge state, the orientation of the fillers in the matrix, and the interaction between filler and matrix. [36][37][38][39][40] For example, the TC of long carbon fiber is higher than that of short carbon fiber. If the particle size of the fillers is small, their specific surface area, interface energy and the contact area with the matrix are large, which is likely to cause more phonon scattering.…”