Materials Literature
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Abstract The non‐rigid microporous PVC films are prepared by mono‐axially stretching nonporous sheets containing fillers which show an average particle size of 2 to 10 μm. The nonporous PVC film is generated from paste‐like PVC. The influence of recipe components on the mechanical properties, morphological behavior an…
Abstract Results concerning γ‐irradiation of polymer blends such as HDPE/ground tire rubber (GTR) and PP/HDPE are reported in this article with a special emphasis on the order of processing steps. Irradiation dose varied in the range 0–100 kGy. The two first polymers (HDPE and rubber) are preferentially crosslinked un…
The electronic structure and magnetic properties of CuNCN have been reinvestigated by density-functional theory including explicit electronic correlation (GGA+ U ). The calculated results show that CuNCN is a semiconductor with a band gap of 0.1 eV and without any local magnetic moments, in practically quantitative ag…
Abstract Poly(methyl methacrylate) (PMMA)/SiO 2 nanocomposites were prepared by in situ suspension polymerization. Two types of modified methods were used to modify nano‐SiO 2 : one was modification by γ‐methacyloxypropyl trimethoxy silane (KH570) and lauryl alcohol (12COH) while the other was grafting PMMA onto the s…
Abstract The production and optimisation of screen printing (SP) pastes containing La 0.58 Sr 0.42 Co 0.21 Fe 0.79 O 3 – δ and La 0.61 Sr 0.41 Co 0.19 Fe 0.79 O 3 – δ (LSCF) were investigated. The application of these nanopowders is supposed to improve the cathode's microstructure and increase its mechanical strength.…
Abstract The Archimedes' principle and physical theory are attempted to analysis the densification and structure of the polystyrene (PS) composites by melt compounding with CaCO 3 having different particle size. The difference between the measured specific volume (ν) andthe theoretically calculated specific volume (ν…
A detailed test of the Rouse model has been performed on a nonentangled 1,4- cis -poly(isoprene) (PI) by investigating the end-to-end vector dynamics by means of broadband dielectric spectroscopy. The contribution to the dielectric relaxation of the end-to-end vector dynamics was determined by subtracting the signal f…
Single-walled carbon nanotubes (SWNT) polarize readily in the presence of electromagnetic (EM) fields, enabling a variety of electrochemical reactions. Here, we study the reaction of transition metal ion salts in the presence of surfactant-stabilized SWNT individually suspended in water when activated by alternating E…
The retardation of the interfacial velocity due to the presence of surface-active species is a key feature that determines the magnitude of the dynamic interaction force between colliding bubbles. Here we derive simple measures to quantify the influence of a surface-active species during a head-on collision between bu…
Abstract Gene delivery from tissue engineering scaffolds has demonstrated the ability to promote gene transfer and stimulate new tissue formation. In this article we report a novel nanofibrous scaffold based on polyelectrolyte complexes as a vehicle for delivery of DNA. When polycation chitosan (CS) was dropped into p…
Abstract An ethylene/vinyl alcohol copolymer (EVOH) with superior barrier properties was used as an organic component to prepare EVOH/SiO 2 hybrid materials with improved gas barrier properties with a sol–gel method. As a silane coupling agent, 3‐isocyanatopropyl triethoxysilane (IPTES) was used to promote interfacial…
Abstract The effects of both the rice husk ash (RHA) loading and fumed silica (FS) loading on the structure, thermal stability, and electrical properties of acrylonitrile–butadiene rubber (NBR) composites were studied. The filler loading were chosen to be 5 and 20 phr for RHA and 5 and 30 phr for silica. Also, the eff…
Abstract The effects of gaseous chlorine dioxide (ClO 2 ) on properties and performance of 10 selected polymeric packaging materials, including polyethylene (PE), biaxially oriented poly(propylene), polystyrene, poly(vinyl chloride), poly(ethylene terephthalate) (PET), poly(lactic acid), nylon, and a multilayer struct…
Abstract The spherulitic structure and morphology of poly(3‐hydroxybutyrate) (PHB) thin films crystallized from the melt were observed with a polarizing optical microscope. Depending on the thickness of the PHB thin film and crystallization temperature, banded and nonbanded spherulites could form. Reducing the thin‐fi…
Abstract In an attempt to provide superior products for the structural applications, this study aimed at preparing isotropic compatible high density polyethylene (HDPE)/ polypropylene (PP) blends without the use of the expensive compatibilization technique. Morphological and structural characterizations of the homopol…
Abstract The anodes for direct utilisation of hydrocarbon fuels have been developed by using Cu/Ceria‐based nano‐composite powders. The CuO/GDC/YSZ–YSZ or CuO/GDC‐GDC nano‐composite powders were synthesised by coating nano‐sized CuO and CeO 2 particles on the YSZ or GDC core particles selectively by the Pechini proces…
Abstract The major aim of this work was to prepare injectable paclitaxel‐loaded poly( D , L ‐lactide) microspheres for the inhibition of brain glioma. Paclitaxel‐loaded PLA microspheres were prepared by spray drying method employing ethyl acetate as solvent. And the microspheres were characterized by scanning electron…
This and the subsequent paper present models developed for determining fuel particle and fuel element temperatures in normal operation and transient conditions in high temperature reactor cores. Multiscale modeling concepts are used to develop the models for both pebble bed and prismatic core types. This paper, Part I…
Abstract The thermomechanical and morphological properties of some epoxy blends modified with hyperbranched polymers are reported. The effects of pseudo‐generation numbers, from the second to the fourth, were studied. All the hyperbranched polymers used had OH end groups. The blends were thoroughly characterized in b…
The crystal and magnetic structures and electrical properties of two new Mn-rich 6H′-type hexagonal perovskites in the BaMn 1− x Fe x O 3−δ system have been investigated. Structural characterization performed by X-ray, electron, and neutron diffraction and high resolution electron microscopy indicates that both BaMn 0…