It is concluded that molecular additives and nanofillers function in dielectric polymers by charge trapping and potentially impact excitation that can effectively reduce the energy dissipated to the polymer lattice and improve the breakdown strength and lifetime. An ideal composite in this sense should ...
Dielectric breakdown of solid insulation has been studied for many years but the mechanisms that cause breakdown have not been fully understood. Charge injection always occurs at high electric fields and especially under dc conditions. The presence of space charge in solid dielectrics will result in ...
Spherulites and transcrystals are formed in polymers used as insulation materials; however, the deterioration mechanism of the electrical properties of these materials has not been established. To study the relationship between the superstructure of semicrystalline polymers and their dielectric breakdown ...
Much experimental work has been done on the dielectric breakdown of solid dielectrics, and a number of breakdown theories have been proposed. Many problems, however, still remain on the breakdown process of polymers. Here, the breakdown process of polymers are discussed from the standpoint of the...
Ieda, M. Dielectric breakdown process of polymers. IEEE Trans. Electr. Insul. 15, 206–224 (1980) Article Google Scholar Li, Q. et al. Solution-processed ferroelectric terpolymer nanocomposites with high breakdown strength and energy density utilizing boron nitride nanosheets. Energy Environ. Sci...
Intrinsic AC Dielectric Breakdown Strength of Polyimide Films at the Extreme: New Breakthrough Insights on Thickness Dependence To date, the AC dielectric breakdown strength of polyimide (PI) films, as for most polymers, is understood to follow a thickness dependency with a measured... S Diaham,...
Also, the dielectric breakdown strength of PVDF composites is reasonable, and their power dissipation is low compared to other high-k polymeric materials [62]. PVDF composites possess high dielectric constant which can be used in a variety of applications in ‘gated’ dielectric actuators, electric...
Furthermore, the temperature dependence of the dielectric breakdown strength (EB) was checked, and it was found that at a temperature of 80 °C, the EB value of the PLA with chitin was around 1.8 times greater than that of the PLA without chitin. 2011 Institute of Electrical Engineers of ...
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook dielectric constant Also found in:Acronyms,Encyclopedia,Wikipedia. dielectric constant n. The ratio of the permittivity of a material to that of a perfect vacuum. Also calledrelative permittivity. ...
SUMMARY This article presents pattern analysis to identify the dielectric breakdown characteristics of biodegradable polyethylene film under nonuniform electric field affected by the contaminated conditions, with low-density polyethylene (LDPE) film as the reference. When the specimens were immersed in the ...