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Dielectric materials with high energy density have a wide range of applications in high-performance capacitors, sensors, brakes, spacecraft, and electric stress control devices. Adding inorganic filler in the polymer matrix is an effective way to increase the energy density of the polymer materials, the characteristics of composites and inorganic filler with high dielectric constant and high breakdown...
The similarity of photo aging and corona aging in nano-ZnO/LDPE composite was investigated using the Fourier Transformed Infra-red spectra (FTIR). The composite of nano-ZnO/LDPE was prepared via the method of double-solution mixture. The samples were aged by photo and corona respectively for different time. The FTIR spectra were measured and the results showed that the spectra of samples aged by photo...
The photoresist SU-8, often used in microtechnology, has been acoustically characterized at a frequency of 1 GHz thanks to thin-disk piezoelectric ZnO transducers. Acoustical characterization of SU-8-based nanocomposites made of SU-8 and nanosize TiO2 and/or SrTiO3 particles is presented. These nanocomposite materials would be used to achieve acoustical matching between silicon and water at a frequency...
Quality control has demanded methods to quantify the mixing state of nanoparticles imbedded in polymeric materials. Several quantification methods are reviewed based on the analysis of images from electron microscopy. This includes the quadrat-based skewness, nearest neighbor distance, the k-function and Monte Carlo method. A novel method in which the dispersion and distribution are evaluated respectively...
Highly nonlinear electrically insulating materials have applications in high voltage cable applications. In this contribution, nanocomposites were prepared by blending ZnO nanoparticles or ZnO nanoparticles treated with aqueous SnX2 (X = F or Cl), with EPDM (ethylene propylene diene monomer). The treated powders were a heterogeneous mixture of ZnO and SnO and show enhanced nonlinearity compared to...
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