Enhanced thermal conductivity and ideal dielectric properties of epoxy composites containing polymer modified hexagonal boron nitride

Highly Thermally Conductive Dielectric Nanocomposites with Synergistic Alignments of Graphene and Boron Nitride Nanosheets

“…This work is distinctive and exceptional because the multifunctional properties that are normally considered mutually exclusive are achieved in an identical rGO‐PI/BNNS‐PI micro‐sandwich composite with a simultaneously high dielectric constant, low dielectric loss, high energy density, and high thermal conductivity. These multifunctional properties of the rGO‐PI/BNNS‐PI composites are compared with those reported previously [ 55–64 ] in Figure 6b,c. Because both high dielectric constants and low losses are required for capacitive energy storage applications, the dielectric constant to loss ratio was used to characterize the overall dielectric performance of our composites.…”

“…The micro‐sandwich composites delivered one of the highest combinations of TCEF and dielectric constant to loss ratio among composites containing different fillers reported in literature, as shown in Figure 6c. [ 49,62–66 ] While many thermally conductive nanocomposites with electrically insulating properties were developed previously, the high thermal conductivities of over 1.5 W m −1 K −1 in most studies were achieved with high filler contents of over 5 vol%. [ 22,50,51 ] Such high filler contents may be detrimental to the dielectric properties especially the breakdown strengths because of the agglomeration and defects associated with a large increase in interface area caused by the high filler loading.…”

Surface modification of a BN/ETDS composite with aniline trimer for high thermal conductivity and excellent mechanical properties

“…Therefore, by improving the interfacial affinity between the ller and the matrix through the surface treatment of the BN particles, higher performance TIM composites can be produced. [9][10][11] We used the aniline trimer (AT) for surface treatment and dispersion. For the surface treatment, AT was dispersed with h-BN in an organic solvent, and the AT adhered to the dispersion of agglomerated BN, attaching itself to the surface of the platelike BN particles.…”

An Approach Towards Optimization Appraisal of Thermal Conductivity of Magnetic Thermoplastic Elastomeric Nanocomposites Using Response Surface Methodology

“…A thermal conductivity analyzer (TCA; Nanoflash NETZSCH, model LFA 44712-41) is considered a high-tech instrument that implements the laser flash method to evaluate the heat transfer properties of materials [ 31 , 43 , 44 , 45 , 46 ]. The nanocomposite samples were shaped into circular disks of 12.7 mm and 2 mm thickness and coated with graphite before commencing the test that adhered to the ASTM E1461-92 protocol as previously reported [ 47 , 48 , 49 ].…”