The development and analysis of the properties a new material based on UV-curable acrylate monomers with silicon-containing hydroxyapatite zinc oxide nanoparticles as an antibacterial component gelatin was carried out. Using this in orthopedics dentistry is very convenient because it covers any surface geometry metal implants hardens under ultraviolet light. In work, sorption properties, changes porosity, mechanical were investigated. conditions for obtaining (HA) presence silicon organic...

Edible films based on biopolymers are used to protect food from adverse environmental factors. However, their ample use may be hindered by some challenges mechanical and antimicrobial properties. Despite this, in most cases, increasing properties antibacterial activity remains a relevant challenge. To solve this problem, possible option is fill the biopolymer matrix of with functional filler that combines high reinforcing In work, biocomposite mixture chitosan cassava starch were filled...

To enhance the ecological properties of polyvinyl chloride (PVC) products, fabrication PVC-based composites using biofillers with acceptable performance characteristics could be considered. In this work, plant-filled composite materials were fabricated and their optical, structural, thermal, mechanical properties, depending on nature filler, studied. Spruce flour, birch rice husk used as fillers. Optical measurements showed selected technological parameters, allowing films a uniform...

In this work, the overall activation energy of combustion lean hydrogen–methane–air mixtures (equivalence ratio φ = 0.7−1.0 and hydrogen fraction in methane α=0, 2, 4) is experimentally determined using thin-filament pyrometry flames stabilised on a flat porous burner under normal conditions (p=1 bar, T 20 °C). The experimental data are compared with numerical calculations within detailed reaction mechanism GRI3.0 both approaches confirm linear correlation between mass flow rate inverse...

. In this work, two types of nanoporous alumina membranes were prepared using different acids and tested. Structural features the samples investigated by scanning electron spectroscopy further fractal dimension estimation methods. Transmission scattering accelerated He+ ions studied in experiments on ion irradiation dielectric channels based porous alumina. Ion accelerator was used as a source beam with an energy 1.7 MeV. A Rutherford backscattering spectrometry. Helium transition through at...

PVC-based materials are bad in terms of biodegradability. To enhance the ecological property such materials, fabrication composites using biofillers with acceptable performance characteristics could be considered. In this work, plant-filled composite were obtained and study their optical, structural, thermal, mechanical properties depending on nature filler (spruce flour, birch rice husk) studied. Increasing proportion plant somewhat reduces strength flexibility samples. But samples allows...

AbstractIn this work, the determination of apparent activation energy a global chemical reaction mechanism methane–air flames is revisited. The one-step formulation allows to derive theoretical background for method measure within burner stabilised flame setup. validity approach demonstrated by using numerical simulations with detailed model and direct thin filament pyrometry measurements temperature distribution in flame. combination experimental approaches us find various mixture...

In this work, we evaluate the hierarchical surface topography of reactively sputtered nanocrystalline Pb(Zr,Ti)O3 and TiO2 thin films as well plasma-treated antireflective PET by means determining fractal dimension power spectral density (PSD) recorded atomic force microscopy (AFM). Local was obtained using triangulation method. The PSDs all samples were fitted to k-correlation model (also called ABC model) valid for a self-affine topography. Fractal analysis AFM images shown be an...

Nanocomposite SiO2-SnO2 thin films were prepared on oxidized silicon substrates using the sol-gel technique with SnCl2·2H2O as a tin precursor and tetraethylorthosilicate (TEOS) silica source. The porous structure of was investigated by atomic force microscope. Gas sensitivity samples measured at different temperatures for H2 concentrations. Advanced gas sensing properties obtained fraction 10 at% providing mesoporous microstructure.

Using the sol-gel technique, nanocomposite SiO2-SnO2 thin films comprising a designed hierarchical pore structure were prepared on cost-efficient oxidized silicon substrates. These exhibit advanced gas sensing properties both for reducing gases and oxygen due to an efficient analyte transport by mesoporores.

Abstract In this work, we investigate microstructure and composition of nanocrystalline lead-titanium-zirconium oxide thin films reactively sputtered directly on copper-coated polymer without intentionally substrate heating. Film characterization was carried out by scanning probe microscopy. Surface topography described fractal dimension. Composition analysis performed means X-ray photoelectron spectroscopy. Keywords: Sputter depositionscanning microscopyfractal dimensionfilm Acknowledgments...

In this work, two types of nanoporous alumina membranes were prepared and tested. Structural features the samples obtained by using different acids investigated scanning electron microscopy (SEM). And further SEM-images analyzed fractal dimension estimation methods. The transmission scattering accelerated He+ ions studied in experiments on ion irradiation dielectric channels based porous alumina. An accelerator was used as a source beam with an energy 1.7 MeV. Ion Rutherford backscattering...

Данная статья посвящена исследованию теплотворной способности и особенностям термического разложения биотопливных композитов на основе луба сосновых иголок. Результаты калориметрических исследований показали, что значения низшей теплоты сгорания пеллет всех составов находятся уровне не ниже 18,4 кДж/кг. Благодаря термогравиметрическому анализу были установлены основные диапазоны этапы композитных пеллет, а также оценены индексы горения. Исследования, проведенные в данной работе, являются...

В данной работе представлена пиролизная технология переработки автомобильных шин. Основная цель исследования заключается в изучении влияния предварительной подготовки образца шины, а именно, криообработки и измельчения, на процесс термического разложения. Объектом является параметр скорости потери массы, определяющий эффективность предлагаемого метода. Экспериментальный этап основан термогравиметрическом анализе, результате которого была получена зависимость массы от температуры для 4...

Application of focused beams medium energy light ions, electrons and low heavy ions is considered for the technology manufacturing small-dimension components. Physical principles applied as basis interaction above with resistive materials are described. The proton beam lithography a new possessing high potential capabilities various applications like micro-optics nanoelectronics terahertz wave band.