Browsing Ústav chemie materiálů by Title
Now showing items 37-56 of 65
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Lumbar Interbody Fusion Conducted on a Porcine Model with a Bioresorbable Ceramic/Biopolymer Hybrid Implant Enriched with Hyperstable Fibroblast Growth Factor 2
(MDPI, 2021-06-25)An experimental animal study was designed to investigate the intervertebral fusion efficiency and safety of a bioresorbable ceramic/biopolymer hybrid implant enriched with FGF2-STAB(R) in comparison with a tricortical bone ... -
Mechanical fracture characterization of alkali-activated slag mortars with standardized and natural sand
(EDP Sciences, 2020-03-05)This paper is focused on the development of the physical, mechanical and fracture characteristics of alkali-activated slag (AAS) mortars during ageing. The two AAS mortars were selected for the purpose of the experiment. ... -
Negative effect of Zinc compounds on hydration kinetics of ordinary Portland cement
(IOP Publishing, 2021-01-18)Heavy metals have significant effect on cement hydration mechanism and kinetics. The recycling of waste materials leads to increase of content of heavy metals in various industrial products and visibly affects properties ... -
Nondestructive testing of advanced materials using sensors with metamaterials
(IOP Publishing, 2016-01-01)This work presents a method for nondestructive evaluation (NDE) of advanced materials that makes use of the images in near field and the concentration of flux using the phenomenon of spatial resolution. The method allows ... -
Optical Properties of Oxidized Plasma-Polymerized Organosilicones and Their Correlation with Mechanical and Chemical Parameters
(MDPI, 2019-02-12)Čistý tetravinylsilan a jeho směsi s kyslíkem byly použity k depozici oxidovaných plazmových polymerních filmů při různém efektivním výkonu (0,1-10 W) a různých kyslíkových frakcích (0-0,71) za použití RF pulzní plazmy. ... -
Optimization of cementitious composite for heavyweight concrete preparation using conduction calorimetry
(Springer, 2020-09-17)The present work investigates the hydration heat of different cement composites by means of conduction calorimetry to optimize the composition of binder in the design of heavyweight concrete as biological shielding. For ... -
PEO of AZ31 Mg Alloy: Effect of Electrolyte Phosphate Content and Current Density
(MDPI, 2020-12-17)In this work, the quality of coatings prepared by plasma electrolytic oxidation (PEO) on an AZ31 magnesium alloy were evaluated. This was done by studying the effects of the chemical composition of phosphate-based process ... -
Phase Composition of Silica Fume-Portland Cement Systems Formed under Hydrothermal Curing Evaluated by FTIR, XRD, and TGA
(MDPI, 2021-05-24)Two substitution levels of Portland cement by silica fume (SF; 30 and 50 mass%) and three hydrothermal treatment regimes (0.5, 1.2, and 2 MPa and 165, 195, and 220 degrees C for 7 days, respectively) were selected for the ... -
PLA toughening via bamboo-inspired 3D printed structural design
(Elsevier, 2021-12-01)Bioinspired structures can attain mechanical properties unseen in conventional artificial materials. Specifically, the introduction of a cellular structure with a precisely designed distribution of cells, cell sizes, and ... -
Plasma nanocoatings developed to control the shear strength of polymer composites
(MDPI, 2019-07-15)All reinforcements for polymer-matrix composites must be coated with a suitable material in the form of thin film to improve compatibility and interfacial adhesion between the reinforcement and the polymer matrix. In this ... -
Potential use of blast furnace slag for filtration membranes preparation: A pilot study
(IOP Publishing, 2018-07-12)This paper investigates the possibilities of the use of sodium hydroxide activated blast furnace slag for preparation of filtration barriers. The motivation for this research is searching for cheaper and more eco-friendly ... -
Preparation and Characterization of Glass-Ceramic Foam from Clay-Rich Waste Diatomaceous Earth
(MDPI, 2022-02-13)In this study, the potential of use of waste diatomaceous earth from production of diatomaceous earth for filtration purposes, as an alternative raw material for foam glass production, was explored. The Chemical and ... -
Preparation, characterization and in vitro bioactivity of polyvinyl alcohol-hydroxyapatite biphasique membranes
(Slovak University of Technology in Bratislava, 2013-05-22)Paper focused on preparation, characterisation of polyvinyl alcohol-hydroxyapatite membranes with various content of hydroxyapatite filler in polyvinyl alcohol matrix and hydroxyapatite amount influence on composite in ... -
Printability, Mechanical and Thermal Properties of Poly(3-Hydroxybutyrate)-Poly(Lactic Acid)-Plasticizer Blends for Three-Dimensional (3D) Printing
(MDPI, 2020-10-23)This paper investigates the effect of plasticizer structure on especially the printability and mechanical and thermal properties of poly(3-hydroxybutyrate)-poly(lactic acid)-plasticizer biodegradable blends. Three plasticizers, ... -
Protective Properties of a Microstructure Composed of Barrier Nanostructured Organics and SiOx Layers Deposited on a Polymer Matrix
(MDPI, 2018-08-31)The SiOx barrier nanocoatings have been prepared on selected polymer matrices to increase their resistance against permeation of toxic substances. The aim has been to find out whether the method of vacuum plasma deposition ... -
Recycling possibilities of bioplastics based on PLA/PHB blends
(Elsevier, 2020-09-29)The study is focused on modelling the evaluation of recyclability of the biodegradable blend using multiple extrusion of selected composition of PLA/PHB blend which had been more deeply studied before. It was shown that ... -
Silver Nanoparticles Stabilized with Phosphorus-Containing Heterocyclic Surfactants: Synthesis, Physico-Chemical Properties, and Biological Activity Determination
(MDPI, 2021-07-22)Phosphorus-containing heterocyclic cationic surfactants alkyldimethylphenylphospholium bromides with the alkyl chain length 14 to 18 carbon atoms were used for the stabilization of silver nanodispersions. Zeta potential ... -
Soluble collagen dissolution and assembling in pressurized carbon dioxide water solutions
(Budapest University of Technology, 2018-02-01)Dissolution and gelation procedures have a great influence on gelation time, microstructure and mechanical properties of reconstituted collagen products. We have investigated the dissolution of atelocollagen in CO2/water ... -
Stability of collagen scaffold implants for animals with iatrogenic articular cartilage defoects
(University of Veterinary and Pharmaceutical Sciences in Brno, 2009-12-15)Synthesis and characterization of biodegradable hydrogels based on collagen modified by addition of synthetic biodegradable copolymer intended for preparation of porous scaffolds for mesenchymal stem cells used for possible ... -
Stabilization of the ammonia in SNCR fly ash - the influence of tannins presence on the preparation of an autoclaved aerated concrete
(IOP Publishing, 2019-08-14)Thanks to the legislative regulations on NOx emissions, a selective non-catalytic reduction (SNCR) technology had been introduced to a coal combustion process in power plants. The valuable by-product, fly ash, contains ...