Abstract
AbstractInorganic nanoparticles are widely used to improve the electrical insulation properties of polymer materials as a result of their excellent dielectric properties and space charge suppression. However, high surface energy means that they easily agglomerate in a matrix, which limits the improvement of the insulation properties of a polymer. In this work, nanocomposites that can withstand a high‐voltage DC field were successfully prepared by incorporating two types of modified hexagonal boron nitride (h‐BN) into linear low‐density polyethylene/ethylene‐acrylic acid copolymer (LLDPE/EAA). The results indicate the introduction of the two types of modified h‐BN can improve electrical properties significantly. For example, the internal space charge is suppressed obviously and DC breakdown strength of the nanocomposite prepared by introducing 0.5 wt% covalently modified h‐BN reaches 480.8 kV mm−1, which is 72.9% higher than that of pure LLDPE. This investigation paves a new way for the application of modified h‐BN in the development of polyethylene insulating materials. © 2022 Society of Industrial Chemistry.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
