Thermal and dielectric properties of two‐dimensional layered <scp>MXene</scp> ( <scp> Ti ₃ C ₂ T _x </scp> ) filled linear low‐density polyethylene composites

Exploring a new material MXene-based polymer composite with high-dielectric constant and low-dielectric loss is important because of their potential applications in modern electronics and power systems. The two-dimensional layered Ti3C2Tx(MXene)/linear low-density polyethylene (LLDPE) composite have been fabricated via the solution casting method in the weight ratio of 1 to 10 of Ti3C2Txto the total weight of the polymer matrix. The formation of Ti3C2Tx filled LLDPE composite is revealed by the X-ray diffraction, Field Emission Scanning Electron Microscope (FESEM), Fourier-transform infrared, differential scanning calorimetry, and thermogravimetric analysis investigations. The room temperature transport behavior of the composites was studied by impedance spectroscopy technique within the frequency range of 5 Hz–5 MHz. The composites show significantly improved real dielectric permittivity of and low-dielectric dissipation loss of the composite (maximum ε' = 9.35 × 103 with tan δ = 0.48 at 5 Hz at 25°C) at 5 phr of Ti3C2Tx loading. This work gives an auspicious idea to build polymer films with improved dielectric permittivity and low-loss tangent for potential application in flexible electronic materials.