Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The solubilities of potassium fluoride (KF) in the different nonproton polar solvents N, N -dimethyl ethanolamine, pyridine, diethanolamine, and sulfolane have been determined using a dynamic method at temperatures ranging from 308.73 to 367.37 K. The experimental data were correlated with the modified Apelblat equati…
The thermoplastic processing and mechanical properties of starch and polycaprolactone (PCL) composites reinforced by nano-silica (nano-SiO 2 ) were studied. The results showed that the mechanical properties of the starch/PCL blends improved significantly with the increase of PCL. After the addition of nano-SiO 2 , the…
In this study, the elastic modulus of 1 wt. % multiwalled carbon nanotube (MWCNT) reinforced epoxy composite was characterized using an in-house designed micro/nano tensile load stage in conjunction with an atomic force microscope (AFM). The surface of the nanocomposite was scanned by the AFM during intermittent tensi…
A micromechanics-based approach using a self-consistent scheme based on the double-inclusion model is adopted to develop a pertinent model for describing the viscoelastic response of polymer/clay nanocomposites. The relationship between the intercalated nanostructure and the effective nanocomposite stiffness is constr…
In this study various composites based on the commercial ethylene vinyl acetate polymer matrix and multiwalled carbon nanotubes were prepared by casting from solution in the form of thick films. The degree of dispergation of carbon nanotubes in the polymer matrix was examined by scanning electron microscopy. Electrica…
Abstract The aim of this study was to determine the influence of exfoliated silicate layers on the thermal conductivity of polypropylene nanocomposites. The correlation of thermal conductivity with the degree of exfoliation is examined and compared to common mineral fillers like talcum. The results clearly show that n…
Abstract A high‐density polyethylene (HDPE) masterbatch containing 20.2 wt% multiwalled carbon nanotubes (MWNTs) was melt diluted with neat HDPE using two different methods: a twin screw microcompounder and a single‐screw extruder. The electrical properties of these composites were assessed using bulk electrical condu…
Abstract This work aims at studying the extensional rheological behavior of polypropylene (PP), ethylene‐butene copolymer (PEB) and their blends in the melt. The weight fraction of the PEB in the blend is 20 and 40%, respectively. Dynamic mechanical analysis shows that these two blends exhibit two tanδ peaks correspon…
Abstract The eddy current brake is a type of braking system used for railway vehicles. Because rail heating is a problem in this type of brakes, they have not been put to practical use in Japan. Therefore we proposed using a linear induction motor (LIM) for dynamic braking in the eddy current brake systems. In this pa…
The electroluminescence (EL) and photoluminescence of Si nanocrystals (Si-nc) from multilayered samples of Si/SiO are investigated. Si-nc are formed within Si and SiO layers after furnace annealing. It is found that the presence of Si interlayers creates extra carrier paths for EL emission. A comparative study is furt…
In this work the effect of macromolecular polyurethane compatibilizer on the structure, mechanical and thermal properties of polyoxymethylene/organically modified montmorillonite (POM/OMMT) nanocomposites was investigated. The thermal stability of obtained systems was significantly enhanced by compatibilizer both in o…
We study liquid crystal mixtures of alkoxy substituted phenylpyrimidines 2-[4-(butyloxy)phenyl]-5-(octyloxy)pyrimidine (2PhP) and 2-[4-(tetradecyloxy)phenyl]-5-(tetradecyloxy)pyrimidine (PhP14) using molecular dynamics simulations at the all atom level. The molecular length of PhP14 is 1.8 times that of 2PhP, resultin…
Abstract A phenomenon that can represent a great problem in melt processing is extrudate distortion. This effect can range in intensity from a loss of gloss to gross distortion and is the factor that limits the production rate in certain processes such as the blown film extrusion of linear low‐density polyethylene (LL…
Kern-Schale-Nanostrukturen eines photolumineszierenden Eu-Polyoxometallats (Eu-POM) mit dem doppelt-hydrophilen neutral-kationischen Blockcopolymer PEO114-b-PDMAEMA16 wurden durch elektrostatisch getriebene Selbstorganisation in wässriger Lösung hergestellt (siehe Schema; neutraler Block blau, kationischer Block rot).…
Abstract This work extends the method to follow in real time the reduction of the clay particle size by light extinction measurements (turbidity), obtained via an in‐line optical detector fitted at the extruder die exit, to monitor multiple extrusions of PP/MMT nanocomposites. The optical detector was calibrated and s…
A new finite element (FE) specific failure criterion utilizing hardening rates to quantify bending stress is implemented into the MAT_124 material model in the commercial software LS-DYNA to simulate fracture of extruded AZ31 and cast AM60 magnesium alloy tubes. The simulations are performed by requiring element erosi…
Porous platinum nanoparticles provide a route for the development of catalysts that use less platinum without sacrificing catalytic performance. Here, we examine porous platinum nanoparticles using a combination of in situ transmission electron microscopy and calculations based on a first-principles-parametrized therm…
Phase structure of monolayer graphene is studied on the basis of a U(1) gauge theory defined on the honeycomb lattice. Motivated by the strong coupling expansion of U(1) lattice gauge theory, we consider on-site and nearest-neighbor interactions between the fermions. When the on-site interaction is dominant, the subla…
Abstract The complexation of lanthanide cations with a tripodal ligand bearing terminal ester functions was investigated. Thermodynamic speciation was achieved by a combination of different physicochemical methods, and the stability constants of the related complexes were determined spectrophotometrically. The formati…
In order to describe the relation between the elasticity and the blended ratio of PLA fiber blended yarn, the elasticity of different kinds of blended ratio of PLA/Modal and PLA/cotton blended yarn was measured. The relation between the elasticity and the blended ratio of blended yarn is determined. The optimum blende…