نتایج جستجو برای: polymeric nanocomposites
تعداد نتایج: 38374 فیلتر نتایج به سال:
In this work, an extensive study on the glass transition temperature (Tg), dynamic fragility and activation energy (Ea) for a variety polymeric nanocomposite materials, based four different types of matrices reinforced with carbonaceous nanofillers, SiO2 has been performed. Referring to mechanical analysis data obtained in author's previous works, were calculated examined. Depending type, behav...
Abstract As an elastomer, poly(dimethylsiloxane) (PDMS) is used in various applications such as wearable technology and sealants, especially preferred microelectromechanical device production due to its advantage fabrication of microstructures. However, some sensor-based or electrode-based are limited insulator aspect. Various conductive nanomaterials carbon nanotubes (CNTs), graphene, graphite...
Polymeric materials containing nanometer (nm) size particles are being introduced to provide compact shapes for low and medium voltage insulation equipment. The nanocomposites may provide superior electrical performance when compared with those available currently, such as lower dielectric losses and increased dielectric strength, tracking and erosion resistance, and surface hydrophobicity. All...
Recently, the conjugated polymer – inorganic nanocomposites have been increasingly studied due to the potential applications of these advanced materials in developing optoelectronic devices. In this work nanocomposite materials thin films based on poly [2-methoxy-5-(2’-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV) and nanocrystalline TiO2 (nc-TiO2) have been fabricated. The photoluminescenc...
In today's nanoworld, there is a strong need to manipulate and process materials on an atom-by-atom scale with new tools such as reactive plasma, which in some states enables high selectivity of interaction between plasma species and materials. These interactions first involve preferential interactions with precise bonds in materials and later cause etching. This typically occurs based on mater...
Bacterial infections are a leading cause of morbidity and mortality worldwide. In spite of great advances in biomaterials research and development, a significant proportion of medical devices undergo bacterial colonization and become the target of an implant-related infection. We present a review of the two major classes of antibacterial nanostructured materials: polymeric nanocomposites and su...
Recent technological advances in the nanotechnology field have permitted the design of polymeric thin films and polymer-based nanocomposites for energy storage [1], high-k dielectrics [2], light-emitting diodes [3], actuators [4], sensors [5], among many others. While these thin films have been tailored to exhibit unique optical, electrical, and electromechanical properties, enhancements in mec...
The challenge for nanoscale modeling and simulation is to bridge the length and time scales that are necessary to connect nanostructure of the material with its macroscopic properties. This challenge can only be met by combining the efforts of individual researchers who collectively are expert in a wide range of computational and theoretical techniques. The team we have assembled from the Unive...
Nematic polymer nanocomposites (NPNCs) are comprised of large aspect ratio rod-like or platelet macromolecules in a polymeric matrix. Anisotropy and heterogeneity in the effective properties of NPNC films are predicted in this article. To do so, we combine results on the flow-processing of thin films of nematic polymers in a planar Couette cell, together with homogenization results for the effe...
Size and surface effects in the magnetic properties of maghemite and magnetite coated nanoparticles.
An increasing number of promising applications for future technology is arising from size constraints in nanoparticles (NPs) and from the chemical manipulation of their surfaces. In this work, we analyse the finite-size and surface effects on polyacrylic acid-coated Fe(3)O(4) NPs and oleic acid-coated gamma-Fe(2)O(3) NPs by studying their magnetization curves at different temperatures. The meas...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید