Physico-mechanical Tests Research Articles

Rock Mechanical Properties and Resource Potential of Dimensional Stone and Terrazzo in Tigray, Ethiopia: A Geological and Geomechanical Assessment

Dimension stone and terrazzo are quarried rocks following specific dimensions, generally huge in tonnage than ore minerals. Dimension stone and Terrazo resource development opportunities in the Tigray Region, Ethiopia, are studied regarding their potential to make dimension and terrazzo, geology and deposit nature, physio-mechanical properties, rock petrography, and opportunity for exploitation. The granite and marble are quarried as dimension stones and they meet the quality parameters of the rocks, which include, being durable, easy to quarry, work, cut, and polish. It was conducted through the integration of new geological descriptions, interpretation of thin sections, and physico-mechanical tests. Both surface and quarry rock samples were used for the study. 15 from granite and 15 from marble deposits in total 30 samples were used for petrographic analysis and physico-mechanical tests. Based on petrographic and physicomechanical results, granite is harder than marble this may be due to silicates being less dissolved than carbonates. The accessory minerals in both granite and marble deposits limit the quality of the deposits as being impurities. The integrated results indicate that the marble and granite deposits in the area are good in quality and quantity. In addition, they are geologically widespread, technologically do not need sophisticated technology and economically they do not need huge investment and have less effect upon the environment. Diamond wire saws and diamond belt saws separated the dimension stone, which are oblate to curved in shape with 1m width. In the area, investment has been at a relatively low stage more investment will significantly increase production of the dimension stone for local usage, export, and economic growth of the region.

Evaluation of the water weakening coefficient of sandstones by using non-destructive physical parameters

IntroductionThe presence of water significantly reduces the mechanical strength of rocks and induces various engineering geological hazards. The water weakening coefficient Kp is used to quantify this effect, defined as the ratio of wet uniaxial compressive strength to the dry value.MethodsA comprehensive physico-mechanical test was conducted on fifteen sandstones under dry and saturated conditions to predict the water weakening coefficient using easily obtainable physical parameters. Multiple linear regression was employed to establish the relationship between these parameters and the saturated water weakening coefficient.ResultsThe saturated water weakening coefficient decreases with increasing porosity and increases with higher Primary wave velocity (P-wave velocity). Rocks with higher porosity but lower P-wave velocity typically absorb more water. The P-wave velocity and clay mineral content were identified as the best predictors of the saturated water weakening coefficient (R2 = 0.82). Unsaturated water weakening coefficients at any water saturation level were well estimated using a previous exponential function.DiscussionThe roles of different clay minerals and P-wave velocity in the water weakening process of rocks are comprehensively discussed. This study enhances the understanding of the water weakening mechanism and provides an improved evaluation model for the water weakening coefficient of sandstones using physical parameters.

Prediction of physico-mechanical rock characteristics from electrical resistivity tests

The indirect estimation of intact rock properties is particularly useful for preliminary investigations in engineering projects. In this paper we examine the usability of electrical resistivity, a nondestructive measurement, for the prediction of physical and mechanical rock characteristics. Physico-mechanical tests (uniaxial compression, Brazilian tensile, density, and porosity tests) and electrical resistivity measurements were performed on specimens of 36 rock types. Before the resistivity tests, the specimens were completely saturated with saline solution. Evaluation of the test results showed that there are medium or strong correlations between resistivity and rock properties. There are also strong or stronger correlations between the two parameters for the rock classes. The regression equations developed were statistically tested, and their validity was confirmed. The results were also compared with previous studies. The conclusion is that electrical resistivity measurement can be used for reliably estimating physical and mechanical rock characteristics.

Potentiality of some lateritic clayey material from Meiganga as raw material in fired bricks making

The Meiganga lateritic clays and termite mounds were characterized for their use as construction materials. The six collected samples were subjected to mineralogical, geochemical, and physico-mechanical tests. Quartz, kaolinite, hematite, goethite, gibbsite, muscovite, and anatase are the main minerals in raw materials, while after firing at 1050 °C, mullite is formed. The SiO2/Al2O3 ratio greater than 1 indicates a high SiO2 content, which is consistent with the presence of quartz as an associate mineral to kaolinite. Considering linear shrinkage globally less than 5 % and flexural and compressive strengths greater than 2 and 7 MPa, respectively, four clay materials are suitable to produce bricks at all the studied temperatures, whereas two others only after firing at 1050 °C. As the studied characteristics do not depend on the nature of the material, exploring termite mound material in the Meiganga area would provide additional good-quality material to make up for any deficit that might arise.

ASSESSMENT OF THE TECHNOLOGICAL CAPABILITIES OF MODERN CHEMICAL MATERIALS FOR LIQUID FINISHING OF LEATHER

Natural leather is a by-product of the meat industry, which turns into a valuable product that has high strength, stability, comfort, breathability and is considered one of the best products of the circular economy. In addition, less materials from non-renewable sources are used in leather production than in other industries, recycling of waste is practiced, which contributes to the protection of the environment and sustainable development of society. The choice of processing method, type of equipment and chemical materials is of great importance for the quality of leather and the ecological imperative of its manufacturing technology. At the same time, despite the progress of modern chemical technology, the leather industry constantly needs to find and introduce new, more effective means, which would not only be stable in their properties, available and compatible with the components of the «collagen-chemical material» system, but would also contribute the formation of this system in the direction of creating quality products while reducing the harmful load on the environment. The results of previous studies indicate the prospects of modified liquor materials and polymer compounds. Taking into account the above, the technological capabilities of modern commercial chemical materials - modified fats of various origins and acrylic polymer - were analyzed by using them in the liquid decoration of semi-finished Wet-blue half skin. Using the methods of organoleptic assessment, chemical analysis, physico-mechanical tests and microscopy, the advantages of these materials compared to those known during retanning-filling and liquoring have been established. The improvement of the indicators of the content of unbound fat in the leather, the limit of tensile strength and elongation at a stress of 10 MPa was revealed. Good elastic-plastic properties and no difference between the strength of the test skins as a whole and their front layer indicate a more even distribution of materials in the structure of the dermis. This correlates with the results of microscopic studies and allows predicting an increase in area yield, that is, a more rational use of scarce leather raw materials. The results of the work will be used in further studies devoted to the optimization of the parameters of the technology of liquid finishing of natural leather.

Economic feasibility of Gabal Um Takha leucogranitic intrusion, South Sinai, Egypt: Integrated remote sensing, geochemical, aeromagnetic, and geotechnical approach

Variable granitic rocks are widely used as decorative stones. The present work conducted accurate mapping and the utilization of a large leucogranitic intrusion (Um Takha area) as a decorative stones through physico-mechanical tests, mineralogical and geochemical compositions. These leucogranites are medium-grained, classified as syenogranites, peraluminous, calc-alkaline, and highly evolved granites developed during the post-collisional setting. This study utilized various remote sensing techniques to identify the Um Takha leucogranitic using ASTER and Landsat-9 data. A novel FCC band ratio of the ASTER image (RGB: b1+b3/b2, b2/b1, b7+b9/b8) was created, along with the Landsat-9 FCC band ratio of (4/7, 3/4, and 2/1) in the RGB, to effectively map the distribution of in the study area. These results, combined with field observation, led to the creation of a new modified geological map of the Um Takha area. The analysis of magnetic data reveals that the depth of magnetic sources under the study area ranges between 170 m and 2215 m, as calculated by source parameter image and Euler deconvolution techniques. The application of horizontal gradient, tilt derivatives and improved logistic techniques reveals that the major structural trend affecting the study area is in the N–S, NNE-SSW and NNW-SSE direction. The physico-mechanical properties of leucogranitic rocks (M13) fulfilled the requirements of dimension stone in terms of bulk density, compressive strength, and to some extent water absorption. Therefore, they could be acceptable for interior use and the light-duty purposes of exterior use, such as facades and cladding. This suggest that a large resources of leucogranitic can be used as a decorative stones.

The effect of weathering on drillability of dolomites

Abstract In this study, an aggregate quarry was investigated in order to understand the impact of weathering phenomenon on the drillability of dolomite stones, respectively. Samples were collected from the study area and analyzed in terms of physicomechanical tests (specific gravity, dry unit weight, uniaxial compressive strength, point load index (Is50), and Brazillian tensile strength). The drillability of the rocks was investigated using the drilling rate index method. Based on the analysis results, significant relationships were obtained between physicomechanical properties and drillability of dolomites at different weathering grades. Initial evaluations can be interpreted as an increase in the weathering degree would result in an increase in drillability. This understanding of weathering's impact on drillability is actually the main purpose of this study. This article could be a tool as regards initial evaluations of the drillability of dolomites combined with the weathering mechanism, since successful evaluations and meaningful relations were achieved.

The needle penetration index for estimating the physico-mechanical properties of pyroclastic rocks

Preparation of suitable core specimens for physico-mechanical testing s not always possible, particularly for soft and clay-bearing rocks. Although several indirect test methods have been proposed to predict the properties of rocks, specimen preparation from soft rocks for some indirect tests is still difficult. For such cases, the needle penetration test has been developed. In this paper we present a study on the predictability of the physico-mechanical properties of pyroclastic rocks from the needle penetration index (NPI). The NPI, uniaxial compressive strength (UCS), Brazilian tensile strength (BTS), density, and porosity tests were performed in the laboratory on specimens from ten different locations in Turkey. Correlations were established between the NPI values and the physico-mechanical properties. Strong correlations were observed between NPI and both UCS and BTS. General correlations were found between NPI and both density and porosity.

Reinforcement of Silty Soil via Regenerated Fiber Polymer: A Study on Microscopic Mechanisms.

Utilizing regenerated polyester fibers (RPFs) for the reinforcement of silty road bases not only enhances the soil's engineering performance but also offers a sustainable method for repurposing waste polyester bottles. To investigate the engineering properties and microscopic behaviors of this reinforced silty soil, a series of extensive physico-mechanical tests were conducted, supplemented by Scanning Electron Microscopy (SEM) analyses. These evaluations focused on the influence of variables such as fiber content, fiber length, moisture content, and curing duration on the modified soil's performance. The fiber content of the test was 0-1%, and the fiber length was 6-17 mm. The results indicate that curing age had a less significant impact on liquid and plastic limits than the addition of fiber, along with a marginal decline in the plasticity index over time. The rate of shrinkage in the unmodified soil was between 1.04 and 1.45 times higher than that in the fiber-reinforced soil, indicating effective shrinkage control by the fibers. However, variations in maximum dry density (ρdmax) were insignificant across different fiber contents, while a slight increase was observed in the optimum moisture content (OMC) as fiber dosage increased. After a 28-day curing period, the resilient modulus and California Bearing Ratio (CBR) met highway road base design standards. A decline in unconfined compressive strength was noted when the fiber dosage exceeded 0.2%. The addition of fibers mitigated diagonal cracking and shifted the failure pattern towards a more ductile mode. This research contributes scientific insights for the broader application and promotion of silty road base improvement techniques using RPFs.

Suitability of Dental Stone Preparation Using Local Gypsum and Sodium Chloride

The current research included the preparation of dental stones from local raw gypsum and boiling it with a solution of 30% sodium chloride using reflex method. According to the current study, there is no country in the Middle East that produces dental stones. As the details of the method of manufacturing dental stones are not published and are considered very confidential by international companies, and when taking into account that the price of the dental stone is twice the price of plaster, it becomes very important to manufacture dental stones for optimal utilization of the natural wealth in the country. Raw gypsum samples were collected from the Al-Qadisiyah quarry, which is located 19 km southeast of Kirkuk. All samples were subjected to chemical analyses and physico-mechanical tests, including specific weight, particle size, solidification time, longitudinal expansion coefficient, compressive strength, and water-to-powder ratio. The method used for preparing dental stones included the use of a reflex device within a closed system, as there is no loss in sodium chloride solution. The ideal conditions for preparing dental stone were obtained, which are the use of a grain size ranging between -500 and +300 microns and boiling for an hour, followed by drying for an hour at 105 °C, whereby it became possible to prepare dental stone with physiomechanical properties superior to dental stone type III dental stone, according to the American specification for dentists, which indicates that the desired goal of this research has been achieved.

Determination of the shaping behavior of thermoplastic composite materials required for simulation of thermoforming

The shaping of composite consolidated plates into products is a complex process. To obtain a defect-free product, we have to bear in mind that thermoplastics reinforced with a fabric practically do not stretch, and their shaping behavior is determined by the mechanisms of shear deformations within a layer or between layers, by the processes of sliding a composite over the surface of tooling and by the flexural rigidity of the consolidated plates. Due to the complex behavior of the material during deformation, the optimization of the thermoforming process by trial and error is rather expensive in implementation and can be successfully replaced by a preliminary simulation. The available software packages intended for modeling the thermoforming process which provide construction of a correct model of the material consistent with the reality, require the introduction of input parameters for the drape of the consolidated plate, its flexural stiffness, the coefficient of friction between layers and with tooling. However, until now there are no standards for their measurement, which significantly hinders the process of modeling the thermoforming of products from consolidated plates based on thermoplastic binders. We present experimental data on the determination of some physical and mechanical properties of carbon fiber reinforced plastics based on polypropylene PP01030, including tensile-displacement tests of the sample, tests with a moving frame that provide evaluating the shear behavior of thermoplastic composite materials, as well as tests for determining the interlayer friction and friction of a composite with tooling. The tests were carried out at the melting temperature of the matrix using specialized tooling, made taking into account the experience of foreign research groups in physical and mechanical testing of thermoplastic composite materials. A method for determining the flexural rigidity of thermoplastic carbon fiber reinforced plastics is proposed. The presented tooling does not require the application of a complex force, and needs only standard tensile test clamps of the testing machine. The data obtained from the physicomechanical tests can be used in virtual modeling of the thermoforming process of consolidated composite plates.

Valorization of hazardous chrysotile by H3BO3 incorporation to produce an innovative eco-friendly radiation shielding concrete: Implications on physico-mechanical, hydration, microstructural, and shielding properties

For the first time, the hazardous chrysotile was valorized as an aggregate in radiation shielding concrete (RSC). This was accomplished through its amalgamation with two different ratios of boric acid (H3BO3) by 1 and 3% of cement mass to produce CR1, and CR2 concrete mixtures, respectively, in comparison with zero H3BO3 in the control concrete (CC). Physico-mechanical, hydration, and microstructural properties of these concrete mixtures were analyzed employing X-ray diffraction (XRD), Fourier transformation infrared spectroscopy (FTIR), X-ray fluorescence (XRF), scanning electron microscopy (SEM), thermogravimetry/its derivative (TG/DTG), and physico-mechanical tests. Additionally, the radiation shielding was evaluated using Pu–Be, and 60Co sources. Computational studies using NXcom, and WinXCom, as theoretical calculation programs accompanied by the MCNP-5 code as a simulation tool, were applied to verify the radiation shielding measurements. The findings showed that the CC has reasonable radiation shielding with acceptable physico-mechanical properties. On the contrary, CR1 and CR2 had deleterious mechanical and microstructural properties, but more enhanced neutron shielding properties compared to their precursor CC. This conclusion was verified by the remarkable compatibility between the computational and experimental outcomes. Ultimately, H3BO3 additions boosted the radiation shielding of chrysotile concrete despite their devastating impact on the mechanical and microstructural properties, emphasizing the eligibility of chrysotile as an aggregate in RSC.

Fabrication of agro by-product derived green polyurea coatings with zero-VOC to combat corrosion and bacterial growth: A clean approach

Volatile organic compound (VOC) and crosslinker-free anti-corrosive polyurea (CPUrea) coatings have been developed using cardanol, formaldehyde, and urea through an acid catalysed, solvent-free in-situ approach for the first time. The high-performance of the optimized coating was reported after analytically comparing three compositions of the resin, namely CPUrea1.0, CPUrea1.2, CPUrea1.4, along with other relevant compositions (CPUrea0.6 - 0.8). The physico-mechanical tests and thermo gravimetric analysis suggested the superiority coating performance of CPUrea1.0 resin. The excellent combination of higher thermal stability (>300 °C) with flexibility, toughness, surface hardness, and adhesive strength highlights the suitability of protective system. The impedance value of CPUrea1.0 revealed the ability to resist corrosive ions up to 18 days in acidic and saline and 16 h in an alkaline medium. The formation of a homogeneous compact 3D crosslinked structure was observed using scanning electron microscopy images and was schematically presented via., sufficient interaction between polar groups in the resin and metal substrate. The inhibition (50 mm) ability of the resin towards E. coli and S. aureus provided an edge to such sustainable coating materials. The overall results proved that cardanol can be employed as a versatile precursor for the development of green VOC-free CPUrea coatings for protective applications.

Investigation of the properties of a water-based acrylic dispersion modified with an ionic liquid, surfactant, and thickener.

The sustainable development of the paint and varnish industry is a prerequisite for action to minimize the negative environmental impact of paint products. They consist not only in reducing the emission of harmful VOC substances into the atmosphere but also in modifying the composition of the paint material in order to improve the properties of the coatings and at the same time reduce the amount of waste. Selection of the appropriate composition of the water-borne composition is still a problem to be solved. Therefore, aqueous polymer dispersions of Arlberdingk AC 2514 containing an acrylic resin modified with an ionic liquid of didecyldimethylammonium nitrate (DDANO3) were tested. Non-ionic surfactants (Rokanol L-10 and Rokacet S-24), polyurethane thickener (DSX 1514), and mineral thickener (bentonite) were also used for stabilization. The influence of individual components on changes in the stability and particle size of dispersion systems was investigated. Physicomechanical tests of coatings obtained from polymer dispersion systems were also performed. Studies have shown that with the increase in the amount of DDANO3 in the system, the particle size of the varnish composition decreases and the gloss and relative hardness of the coatings decrease. The optimal amount of DDANO3 in the dispersion is 1.5% w/w. DSX 1514 increased the stability, reduced the migration rate of the dispersion particles, and improved the elasticity and impact resistance of the protective membranes. It has been shown that the stability varies depending on the type of thickener and surfactant (SAA) used. SAA increases the value of the TSI (Turbiscan Stability Index), which takes the values of 3.8 (0.3g bentonite) and 3.6 (0.6g bentonite), respectively, with Rokanol L-10 16% w/w. Water-soluble acrylic resin with the tested additives can be potentially used for the production of stable dispersions with extended life.

The utilization of oil palm empty fruit bunches (opefb) for biodegradable's pot raw materials as an alternative container for sustainable nurseries

Processing of waste oil palm empty fruit bunches (OPEFB) that is environmentally friendly is one of the things that should be considered in order to support the development of the palm oil industry in Indonesia. This study aims to determine the effect of the mass ratio between OPEFB and banana stems as raw materials and the effect of NaOH concentration to produce the best biodegradable pot composition formulation based on its physico-mechanical properties. The mass ratio of OPEFB to banana stems was 100%:0%, 80%:20%, 60%:40%, 40%:60%, and 0%:100%, while the concentrations of NaOH used were 3%, 5%, and 7%. Physico-mechanical tests were carried out on the parameters of mass, moisture content, water uptake, biodegradability, and tensile strength of biodegradable pots. The results showed that the biodegradable pots had a mass range of 9.58-18.48 grams, water content 50.42%-65.89%, water uptake 2.72%-4.82%, potential for biodegradation of 40.54%-76.39%, and tensile strength.8091 Pa-23418 Pa. The combination treatment R2C2 (80% EFB: 20% banana stem; 5% NaOH) is the best treatment formulation because it has a faster biodegradability and can support the durability of biodegradable pots through high tensile strength and resistance to water. However, the density of the biodegradable pot wall requires some improvement due to uneven fiber dispersion.

Fabrication of cardanol (a phenolic lipid) based polyamine coatings for anti-corrosive applications

Inhibition of corrosive ions is an important parameter for industrial steel application. The present study deals with the synthesis of polyamine (PA) resin-based coatings from cardanol (Col) with three different ratios (PA1-PA3). Fourier Transform Infra-Red (FTIR) and Nuclear Magnetic Resonance (NMR; 1H &13C) spectroscopy were used to characterize the presence of functional group and structural elucidation of resin, respectively. Physico-mechanical testing of PA coatings was performed by standard ASTM methods to check their mechanical durability. PA1 coatings seemed to have the best physico-mechanical properties and are considered to be the optimum composition for the preparation of durable coatings. Thermal analysis was performed using thermogravimetric analysis (TGA) which revealed that these coatings were stable up to 520 °C. Contact angle values (117°) suggested that these PA1 coating has self-cleaning ability and less wettability. Corrosion inhibition efficiency of these coatings was examined through electrochemical impedance spectroscopy (EIS) investigations. The superior corrosion inhibition properties of PA1 (one-component) coatings were compared with reported Col-based epoxy (two-component) coatings. Such one-component coatings can be used in place of epoxy coatings that could eliminate the usage of two-component coatings resulting in less consumption of energy, time, and material. Moreover, this work supports an approach for the synthesis of green polymeric coating using economic precursor in absence of expensive catalysts/solvents. PA coating have high efficiency towards corrosion resistance, thus, could effectively be used in the field of corrosion protection in near future.

Effects of Glass Wool Residue Recycled Admixtures on the Properties of Portland Cement-Based Composites

In this study, the effects of a recycled mineral admixture based on glass wool residue (GWR) in microstructural and mechanical properties of ordinary portland cement (OPC)-based composites are examined. The GWR was dried and milled into a fine powder, whereby it was physicochemically characterized. Physicomechanical tests, quantitative X-ray diffraction, and scanning electron microscope observation were performed in pastes and mortars at 28, 56, and 90 days of age. Moreover, the potential application of the GWR was evaluated by determining the pozzolanic activity and the fiber reinforcement effect. The results showed that the partial replacement of cement by 25% by weight of GWR presented no reductions in flexural strength at 28 and 56 days of curing, whereas the long-term flexural strength increased by 17%. This replacement also increased the long-term compressive strength of the composites—reaching a strength activity index of 1.06. The results also showed that GWR presented some fiber reinforcement effect—depending on the particle size. Promising properties were observed for samples blended with GWR, yielding technical, environmental, and economic benefits.

Performance of Polyethylene Vapor Barrier Systems in Temperate Climates

The performance of nine different vapor barrier systems comprising polyethylene (PE) membranes were assessed. The vapor barrier systems comprised membranes of virgin PE, 100% new PE, regenerated PE and multilayered virgin and regenerated PE. Membranes were joined either with tape suited to the individual system or an adhesive base on butyl rubber. The vapor barrier systems were evaluated and compared using standard laboratory tests. Chemical analytical techniques and physicomechanical tests were used. Mechanical properties were assessed using laboratory tests recommended by the harmonized standard EN 1385. Chemical analyses followed standard laboratory protocols performed with specialized equipment and visual examination. Chemical and mechanical properties were determined before and after exposure to an aging regime comprising 168 days at 70 °C in total. The chemical stability of the plastic present in each membrane was further evaluated after an additional exposure to an aging regime comprising 50 days followed by another 30 days at 70 °C. Additional aging indicated chemical changes in the membrane material with time. However, it was not possible to distinguish between aging properties for membranes containing virgin PE, 100% new PE, regenerated PE or multilayered virgin and regenerated PE.

Synthesis And Characterization Of New Styrenated Alkyd Resin From Olive Oil As Binder For Surface Coating

In the current review article, an effort has been made to emphasize the inner workings of alkyd resins, the earliest polymeric resincreated from vegetable oils, in light of technological advancements that have occasionally been made to increase their practical utility.The thorough synthesis and use of several kinds of water-born alkyds were explained in order to lessen the use of organic solvents. Tocreate one set of styrenated alkyds, the Styrene monomer was used to post-polymerize the alkyd at 5:5 ratio at 80 °C for 6 hours. 1Standard techniques were used to define and assess the styrenated alkyds' physical and chemical characteristics, drying time, andchemical resistance. Each resin displayed favorable characteristics. Even without a dryer, the styrenated alkyds provided a quickerdrying time2. The styrenated alkyds were resistant to alkali, in contrast to the unstyrenated alkyd, which is just resistant to conditionsthat are acidic, wet, or briny. The AAST's coatings The FTIR, HNMR, DSC, and TGA methods were used to confirm the structures ofthe changed resins that were obtained. The findings of the physico-mechanical tests demonstrated that the styrenated alkyds that wereproduced are suitable for a range of coating applications.

In Ukrainian

A series of polymeric composites based on polyurethanes with copolymer fragments of poly(vinyl butyral-vinyl acetate-vinyl alcohol) and 1,6-hexamethylenediamine filled with modified precipitated silica were synthesized. The content of silver in the nanocomposites was 0.1–0.2 and of copper – 0.14 and 0.2 mmol per 1 g of SiO2 (02AgCu; AgCu and 01Ag samples). The content of silver-containing silica filler in the polymer composites was 0.1, 0.5 and 1.0 wt. %. By means of the IR spectroscopy, it has been found that a physical immobilization of modified silica in the polymeric matrix takes place due to the presence of intermolecular hydrogen bonds. The influence of fillers on the structure and properties of polymer materials, in particular, on thermophysical properties and physico-mechanical parameters (tensile strength and relative elongation at rupture), were investigated. The results of physico-mechanical tests indicate that the strength characteristics of polyurethane depend on the content and concentration of fillers. It has been found that the polymeric sample filled with 02AgCu nanocomposite (0.2 mmol of Ag and Cu per 1 g of SiO2) has the highest strength of the rupture. It has been shown that the introduction of modified silica leads to a reduction of relative elongation at rupture of polymeric nanocomposite. The highest values showed the sample filled with AgCu (0.1 and 0.12 mmol Ag and Cu, respectively, per 1 g of SiO2). The introduction of silver-containing silica nanocomposites into a polyurethane, containing polyvinylbutiral copolymer fragments, leads to an increase in tensile strength and reduction of relative elongation at rupture. Polymeric composite with 0.5 wt. % of filler had the highest values of physico-mechanical parameters. It has been shown that the thermosphysical characteristics depend on the concentration and composition of the fillers and have a nonlinear character. The synthesized nanocomposites can be effectively used as biomedical materials.