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Journal articles on the topic 'Layers of nanocomposite'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Jokar, Maryam, Russly Abdul Rahman, and Luqman Chuah Abdullah. "Physical and Antimicrobial Characterization of Self Assembled Silver Nanoparticle/Chitosan onto Low Density Polyethylene Film as Active Packaging Polymer." Journal of Nano Research 27 (March 2014): 53–64. http://dx.doi.org/10.4028/www.scientific.net/jnanor.27.53.

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Colloidal Silver nanoparticles with a size of 5 nm produced by chemical reduction using poly ethylene glycol (PEG 200). Layers of silver nanoparticles and chitosan were deposited onto low density polyethylene (LDPE) substrate by layer by layer (LBL) self-assembly technique. Silver nanocomposite films were built by sequential dipping of LDPE film in either anionic silver nanoparticles or cationic chitosan. Silver nanoparticles and chitosan led to the formation of nanocomposite films possessing antimicrobial properties with the thickness of 2, 4, 8, 12 and 20 layers. Silver nanocomposite films w

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Haq, Izhar ul, AA Khurram, Rizwan Hussain, and Shahzad Naseem. "Designing and manufacturing of a lightweight and broadband electromagnetic wave absorber with combined carbonaceous and magnetic nanofillers." Polymers and Polymer Composites 27, no. 4 (2019): 215–21. http://dx.doi.org/10.1177/0967391118822794.

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Two different types of microwave absorbers composed of two layers and four layers of nanocomposites have been designed in the light of the theory of electromagnetic wave absorbers and tested. The nanocomposites were prepared from glass fiber/epoxy filled with carbonaceous and magnetic nanoparticles. The carbonaceous nanoparticles include multiwalled carbon nanotubes, graphene nanoplatelets (GNPs), and thermally exfoliated GNPs, whereas magnetic nanoparticles include CoFe3O4, CoNiFe3O4, MnFe3O4 in different weight percentage. The absorbers with two layers of nanocomposites had total designed th

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Ma, Chun Yang, Meng Hua Wu, Jia Gui Wan, and Zhi Jia Qu. "Characterization and Structure of Ni-AlN Nanocomposite Layers Fabricated by Pulse Electro-Deposition 19." Advanced Materials Research 236-238 (May 2011): 2126–30. http://dx.doi.org/10.4028/www.scientific.net/amr.236-238.2126.

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The pulse electro-deposition (PED) has been successfully applied for fabricating nanocomposite layers on the surface of steel substrates. The Ni-AlN nanocomposite layers were fabricated by mixing a given amount of AlN particles in electrolyte ultrasonically. The composition and surface morphology of the layers were investigated by means of XRD and SEM. The results showed that the Ni-AlN nanocomposite layers consisting of nickel grains (~68.27 nm) and AlN nanoparticles (~38.46 nm) had been obtained on the surface of steel substrates by PED. The Ni-AlN layer exhibited a compact surface morpholog

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Sadykov, Vladislav, Natalia Mezentseva, Vladimir Usoltsev, et al. "Metal Supported SOFC on the Gradient Permeable Metal Foam Substrate." Advanced Materials Research 123-125 (August 2010): 1083–86. http://dx.doi.org/10.4028/www.scientific.net/amr.123-125.1083.

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Gradient permeable metallic substrate material consisting of two layers of NiAl alloy was developed for the SOFC design. The open-cell foam layer (thickness 1-2 mm, cell density 60 ppi) provides the structure robustness, while a thin (100-200 μm) mesoporous layer facilitates supporting functional layers. Cathode layers (LSM, LSFN and their nanocomposites with GDC or YSZ) and anode layers (NiO/YSZ, NiO/YSZ +Ru/Ln-Sr-Mn-Cr-O nanocomposite catalyst) were deposited by slip casting, electrophoretic deposition or air brushing. Thin (5-10 μm) YSZ layer was deposited by MO CVD. Power density up to 550

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Irfan, Muhammad, Suzanne Martin, Muhannad Ahmed Obeidi, et al. "A Magnetic Nanoparticle-Doped Photopolymer for Holographic Recording." Polymers 14, no. 9 (2022): 1858. http://dx.doi.org/10.3390/polym14091858.

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Functionalised holograms are important for applications utilising smart diffractive optical elements for light redirection, shaping and in the development of sensors/indicators. This paper reports on holographic recording in novel magnetic nanocomposites and the observed temperature change in dry layers and liquid samples exposed to alternating magnetic field (AMF). The nanocomposite consists of N-isopropylacrylamide (NIPA)-based polymer doped with magnetic nanoparticles (MNPs), and local heating is achieved through magnetic induction. Here, volume transmission holographic gratings (VTHGs) are

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Piao, Shang Hao, Hyeonju Lee, Jaehoon Park, and Hyoung Jin Choi. "Poly(4-vinylphenol-co-methyl methacrylate)/Hafnium Oxide Nanocomposite Gate Insulators for Organic Thin-Film Transistors." Journal of Nanoscience and Nanotechnology 20, no. 7 (2020): 4188–92. http://dx.doi.org/10.1166/jnn.2020.17567.

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We fabricate 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS-Pn) thin-film transistors (TFTs) with nanocomposite insulators. The insulator layers consist of both poly(4-vinylphenol-co-methyl methacrylate) and high-dielectric constant hafnium oxide (HfO2) nanoparticles. The HfO2 nanoparticles are ball-milled for sufficient dispersion in a nanocomposite solution to enable solution process methods to be used in preparing the insulator layers. The nanocomposite insulators demonstrate high capacitances and improve the performance of TIPS-Pn TFTs. Nonetheless, particle aggregates are produced in

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Bozkurt, Çağatay, Hakan DİLMAÇ, and Abdullah Sofiyev. "Buckling problem of sandwich rectangular plates consisting of polymer-based nanocomposite layers under compressive load." UNEC Journal of Engineering and Applied Sciences 5, no. 1 (2025): 35–42. https://doi.org/10.61640/ujeas.2025.0504.

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In this work, buckling problem of polymer-based sandwich rectangular plates with uniform and heterogeneous (HT) reinforced layers subjected to uniaxial compressive load is investigated. First, mechanical properties of each layer of sandwich rectangular plates consisting of polymer nanocomposites are modeled according to the extended mixture rule. After the basic relations of sandwich plates consisting of polymer-based nanocomposite layers are constructed, governing equations are derived based on the assumptions of classical plate theory (CPT). The governing equations under simply supported bou

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8

De Girolamo Del Mauro, Anna, Angelica Immacolata Grimaldi, Vera La Ferrara, et al. "A Simple Optical Model for the Swelling Evaluation in Polymer Nanocomposites." Journal of Sensors 2009 (2009): 1–6. http://dx.doi.org/10.1155/2009/703206.

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In the present study, we report on a simple optical method based on thin film interferometry for the swelling evaluation in polymer nanocomposite layers used for gas sensing applications. We show that white light interferometry can be profitably applied to characterize scattering materials such as polymer/carbon black nanocomposites. A properly adjusted experimental setup was implemented to monitor the swelling behavior of the sensitive films in real device operating conditions. In particular, the behavior of poly(2-hydroxyethyl methacrylate) (PHEMA) and of carbon black/PHEMA nanocomposite lay

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Sapsaliou, D. V., A. S. Petrovskaya, D. L. Radyukevich, T. N. Tolstaya, G. B. Melnikova, and S. A. Chizhik. "Structure and Properties of Multilayer Nanocomposite Coatings of Polyvinyl Alcohol with Aluminum Oxide Nanoparticles." Science & Technique 22, no. 5 (2023): 359–66. http://dx.doi.org/10.21122/2227-1031-2023-22-5-359-366.

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The nanocomposite polymer – inorganic materials formation, the study of their morphology and mechanical properties at the nanolevel is acute in the development of new materials for various functional purposes, including medical ones. As a result of the research the technique for producing singleand multilayer films of polyvinyl alcohol and composite polymer coatings with aluminum oxide nanoparticles by the spin coating method has been developed. It is shown that the optimal mass content of aluminum oxide nanoparticles in suspension for the formation of uniform composite coatings is 0.625 %. Ba

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10

Kasım, Hasan, and Murat Yazıcı. "Electrical Properties of Graphene / Natural Rubber Nanocomposites Coated Nylon 6.6 Fabric under Cyclic Loading." Periodica Polytechnica Chemical Engineering 63, no. 1 (2018): 160–69. http://dx.doi.org/10.3311/ppch.12122.

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In the present study, an elastomeric nanocomposite was prepared by two roller mixing mill with the Natural Rubber (NR) and Nano Graphene Platelets (NGP). The Nylon 6.6 cord fabrics were laminated with the prepared NR/NGP nanocomposite layers. The NR/NGP composites and Nylon 6.6 cord fabric laminated nanocomposite plates were cured at 165 °C for 10 min under pressure. Nylon 6.6 fabric reinforced NR/NGP nanocomposites were electrically characterized under free and cyclic loading conditions. NGP addition to NR improved the electrical conductivity. Under cyclic loading produced nanocomposite and c

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Srivastava, S. K., and I. P. Singh. "Mechanical Properties of Glass Fibre-Epoxy Based Polymer Nanocomposites." Journal of Nano Research 15 (September 2011): 41–49. http://dx.doi.org/10.4028/www.scientific.net/jnanor.15.41.

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The experimental studies are conducted in this paper to optimize the three parameters for development of nanocomposite, namely (i) clay loadings, (ii) magnetic stirring time, and (iii) sonication time. Firstly polymer nanocomposites of varying contents nanoclay were prepared by using a mechanical stirrer and an ultrasound sonicator. The weight percentage of nanoclay in the nanocomposite with fixed stirring and sonication time was optimized for maximum intercalation within the polymer. After optimization of clay percentage, glass fiber based epoxy nanocomposite laminates were prepared. Nanocomp

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Filipescu, Mihaela, Stefan Dobrescu, Adrian Ionut Bercea, et al. "Polypyrrole–Tungsten Oxide Nanocomposite Fabrication through Laser-Based Techniques for an Ammonia Sensor: Achieving Room Temperature Operation." Polymers 16, no. 1 (2023): 79. http://dx.doi.org/10.3390/polym16010079.

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A highly sensitive ammonia-gas sensor based on a tungsten trioxide and polypyrrole (WO3/PPy) nanocomposite synthesized using pulsed-laser deposition (PLD) and matrix-assisted pulsed-laser evaporation (MAPLE) is presented in this study. The WO3/PPy nanocomposite is prepared through a layer-by-layer alternate deposition of the PPy thin layer on the WO3 mesoporous layer. Extensive characterization using X-ray diffraction, FTIR and Raman spectroscopy, scanning electron microscopy, atomic force microscopy, and water contact angle are carried out on the as-prepared layers. The gas-sensing properties

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13

Ivanchenko, A. V., and A. S. Tonkoshkur. "Application of a polymer nanocomposite with carbon filler to limit overvoltages in a photovoltaic element." Journal of Advanced Dielectrics 10, no. 05 (2020): 2050020. http://dx.doi.org/10.1142/s2010135x20500204.

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The ability of a structure in the form of a photovoltaic element with a built-in posistor layer based on a polymer nanocomposite with carbon filler being in direct thermal contact to protect against overvoltages was studied experimentally and by simulation. It was shown that the current and voltage on the reverse-biased [Formula: see text]–[Formula: see text] junction of the photovoltaic layer are limited and decrease from the moment when the temperature of this structure reaches values close to the tripping temperature of the posistor nanocomposite to the low-conductivity state. The temperatu

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Czapczyk, Kazimierz. "Tribological Properties of Ni-P/Si3N4 Nanocomposite Layers Deposited by Chemical Reduction Method on Aluminum Alloy AW-7075." Materials 13, no. 24 (2020): 5797. http://dx.doi.org/10.3390/ma13245797.

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The article presents the results of tribological tests of Ni-P/Si3N4 nanocomposite and Ni-P nickel layers deposited on the AW-7075 aluminum alloy by chemical reduction method, and the AW-7075 alloy without coating. Nanocomposite layers were produced using Si3N4 siliconnitride in the form of a polydisperse powder whose particle sizes ranged from 20 to 25 nm. The influence of the content of the dispersion phase layer material on the abrasive wear, which was determined as the “ball on disc” method, was analyzed. Surface topography was examined by the contact method using a profilometer. The purpo

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Filice, Simona, Stefano Boscarino, Mario Scuderi, et al. "AZO Nanoparticles-Decorated CNTs for UV Light Sensing: A Structural, Chemical, and Electro-Optical Investigation." Nanomaterials 13, no. 1 (2023): 215. http://dx.doi.org/10.3390/nano13010215.

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Nanocomposites formed by aluminum-doped zinc oxide nanoparticles (AZO–NP) and multiwall carbon nanotubes (CNT) are proposed here as a promising material for UV light sensing applications, with the great advantage of operating in air, at room temperature, and at low voltage. Nanocomposite layers were prepared with different AZO:CNT weight ratios by a simple methodology at room temperature. They were characterized by means of UV–Vis spectroscopy, scanning and transmission electron microscopies (SEM and TEM), and X-ray photoelectron spectroscopy (XPS). The interaction between the two nanomaterial

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Cai, Ya Meng, Zong Yi Qin, and Zhe Zhou. "Nanocoating of Polyaniline Layer on the Surface of Graphene Sheets for Ammonia Gas Detection." Advanced Materials Research 557-559 (July 2012): 1803–6. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.1803.

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Polyaniline thin layers were successfully coated on the surface of graphene sheets through in situ chemical oxidative polymerization. By integrating into a resistive sensor design, the sensing properties of the nanocomposites were evaluated. It is found that the nanocomposite sensors exhibited high sensitivity with fast response and recovery time, and good reproducibility charactics for ammonia gas at room temperature even exposed to low concentration of 10 ppm, implying that the nanocomposite could be a promising candidate as a gas sensor for ammonia gas.

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Su, Qing, Tianyao Wang, Lin Shao, and Michael Nastasi. "Radiation Tolerance in Nano-Structured Crystalline Fe(Cr)/Amorphous SiOC Composite." Crystals 9, no. 3 (2019): 147. http://dx.doi.org/10.3390/cryst9030147.

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The management of irradiation defects is one of key challenges for structural materials in current and future reactor systems. To develop radiation tolerant alloys for service in extreme irradiation environments, the Fe self-ion radiation response of nanocomposites composed of amorphous silicon oxycarbide (SiOC) and crystalline Fe(Cr) were examined at 10, 20, and 50 displacements per atom damage levels. Grain growth in width direction was observed to increase with increasing irradiation dose in both Fe(Cr) films and Fe(Cr) layers in the nanocomposite after irradiation at room temperature. Howe

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Kannan, Karthik, Mostafa H. Sliem, Aboubakr M. Abdullah, Kishor Kumar Sadasivuni, and Bijandra Kumar. "Fabrication of ZnO-Fe-MXene Based Nanocomposites for Efficient CO2 Reduction." Catalysts 10, no. 5 (2020): 549. http://dx.doi.org/10.3390/catal10050549.

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A ZnO-Fe-MXene nanocomposite was fabricated and examined with diverse spectroscopic techniques. The hexagonal structure of ZnO, MXene, and ZnO-Fe-MXene nanocomposites were validated through XRD. FTIR showed the characteristic vibrational frequencies of ZnO and MXene. The micrographs of the SEM showed nanoparticles with a flower-like structure. The electrocatalytic reduction efficiency of ZnO-Fe-MXene nanocomposite was analyzed through cyclic voltammetry and electrochemical impedance spectroscopy methods. The ZnO-Fe-MXene electrode was confirmed to have a high current density of 18.75 mA/cm2 un

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Siriyong, Tutchawan, Wirunya Keawwattana, and Jin Kuk Kim. "Influence of Graphene Nanoplatelet Filling in Thermoplastic Natural Rubber Antistatic Nanocomposite Using Combination of Solution and Melt Mixing Method." Advanced Materials Research 1101 (April 2015): 57–61. http://dx.doi.org/10.4028/www.scientific.net/amr.1101.57.

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A simple combination of solution mixing and melt mixing method for the preparation of fully exfoliated and dispersed graphene nanoplatelet (xGnP) in thermoplastic natural rubber (TPNR) as NBR/PVC (NVC) blend (70:30) has been successfully demonstrated. Two different types of H5−xGnP (~53 layers) and C750−xGnP (~16 layers) were used in this study. The amount of xGnP filled in the nanocomposite has been varied from 0-3 phr. The electrical and mechanical properties of filled TPNR nanocomposites were increased with the increase in both of xGnP types loading. The results suggest that the process pro

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Sadrolhosseini, Amir Reza, Suraya Abdul Rashid, A. S. M. Noor, Alireza Kharazmi, H. N. Lim, and Mohd Adzir Mahdi. "Optical Band Gap and Thermal Diffusivity of Polypyrrole-Nanoparticles Decorated Reduced Graphene Oxide Nanocomposite Layer." Journal of Nanomaterials 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/1949042.

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A polypyrrole-nanoparticles reduced graphene oxide nanocomposite layer was prepared using electrochemical method. The prepared samples were characterized using Fourier transform infrared spectroscopy, field emission scanning electron microscopy, and UV-visible spectroscopy. The band gap of nanocomposite layers was calculated from UV-visible spectra and the thermal diffusivity of layers was measured using a photoacoustic technique. As experimental results, the optical band gap was in the range between 3.580 eV and 3.853 eV, and thermal diffusivity was increased with increasing the layer thickne

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de Macêdo Neto, José Costa, João Evangelista Neto, Nayra Reis do Nascimento, Sheila Contant, and Liliane Maria Ferrareso Lona. "New Insights on the Morphology of Nanocomposite Prepared by In Situ Emulsion Polymerization." Applied Mechanics and Materials 775 (July 2015): 170–75. http://dx.doi.org/10.4028/www.scientific.net/amm.775.170.

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In order to better understand the morphology and properties of polymer nanocomposites it is necessary to conduct their characterization by Transmission Electron Microscopy (TEM). This work shows a technique through which the nanocomposite powder is mixed with a resin, and after cured, thin sections can be obtained by ultramicrotomy. Another technique presented in this work deals with the observation of clay powder in solution. In this work High Resolution Electron Microscopy (HRTEM) was used to obtain images of the nanocomposites and clay. Images with a high level of details were showed. Throu

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Aziz, Aadila, N. A. M. Asib, A. N. Afaah, R. Mohamed, Mohamad Rusop, and Zuraida Khusaimi. "Structural and Optical Properties of ZnO/PMMA Nanocomposite." Advanced Materials Research 832 (November 2013): 602–6. http://dx.doi.org/10.4028/www.scientific.net/amr.832.602.

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UV filter is an interesting and challenging application in industries. Hence, ZnO-PMMA nanocomposite thin films have been chosen to achieve above mentioned characteristics [1]. In this study, fabrication of ZnO on PMMA glass substrate successfully prepared by using the solution-immersion method. Layer by layer of poly (methyl methacrylate) (PMMA) was deposited on a glass substrate using the spin coating technique by dissolving PMMA in toluene. Various layers of PMMA were varied to 1, 3, 5 and 7 layers. The structural and optical properties of ZnO/PMMA nanocomposite were then characterized by F

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Songpanit, Maneerat, Kanokthip Boonyarattanakalin, Saksorn Limwichean, et al. "Self-cleaning SiO2/TiO2/PMMA nanocomposite films fabricated by spin coating technique: Effect of different spin speed and film layers." Journal of Materials Science and Applied Energy 12, no. 3 (2023): 252043. http://dx.doi.org/10.55674/jmsae.v12i3.252043.

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This research aims to develop the self-cleaning efficiency of silicon dioxide/titanium dioxide/methyl methacrylate (SiO2/TiO2/PMMA) nanocomposite films proved by optical and structural properties. The SiO2/TiO2/PMMA nanocomposite films were prepared by spin coating technique with the crucial parameters of spin speed and film layers. The ratio of SiO2:TiO2 in SiO2/TiO2 nanocomposite was conducted at 1:1 by sonochemical process and loading at 1 wt.% in PMMA matrix. Spin speed of SiO2/TiO2/PMMA nanocomposite films in coating process was conducted at 1000, 2000, and 3000 rpm with film growth at 2

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Jamal, N. A., Hazleen Anuar, and Shamsul Bahri A. Razak. "Effect of Electron Beam Irradiation (EB) on Gas Barrier Property of HDPE/EPDM Nanocomposites." Key Engineering Materials 471-472 (February 2011): 775–80. http://dx.doi.org/10.4028/www.scientific.net/kem.471-472.775.

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In this study, electron beam irradiated (EB) was applied as a crosslinker agent for both pristine high density polyethylene (HDPE) and HDPE/ ethylene propylene diene monomer (EPDM) nanocomposite systems. The doses rate for EB irradiated technique were varied between 50, 100, 150 and 200 kGy. The nanocomposites systems were first prepared via melt intercalation method with different organophilic montmorillonite (OMMT) loadings. It was found that, with 4 vol% organophilic montmorillonite (OMMT) loading, the barrier resistance of nanocomposite against oxygen transmission was significantly enhance

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Cheaburu, Catalina Natalia, Cornelia Vasile, Donatella Duraccio, and Sossio Cimmino. "Characterisation of the Chitosan/Layered Silicate Nanocomposites." Solid State Phenomena 151 (April 2009): 123–28. http://dx.doi.org/10.4028/www.scientific.net/ssp.151.123.

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Characterization of chitosan / layered silicate nanocomposites obtained by solution-mixing technique, having different compositions including treated and untreated montmorilonite (MMT) has been performed. The optimum amount of MMT and also the effect of nanoparticles type on nanocomposite properties by DSC, X-ray diffraction and TG measurements have been established. The chitosan chains were inserted into silicate layers to form the intercalated nanocomposites. The interlayer distance of the silicates in the nanocomposites enlarged as their amount increased. The stiffness and thermal stability

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Vetrov, S. Ya, A. Yu Avdeeva, M. V. Pyatnov, and I. V. Timofeev. "Hybrid Tamm-cavity modes in photonic crystal with resonant nanocomposite defect layer." Computer Optics 44, no. 3 (2020): 319–24. http://dx.doi.org/10.18287/2412-6179-co-637.

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Hybrid optical modes in a one-dimensional photonic crystal with a resonant nanocomposite defect bounded by a metallic layer are studied. The nanocomposite consists of spherical metallic constituents, that are distributed in a dielectric matrix. Transmittance, reflectance, and absorbance spectra of this structure, which is shined by light with normal incidence, are calculated. The possibility of control of the hybrid modes spectral characteristics by changing the thickness of the layer adjacent to the metal, the number of layers, and the nanocomposite filling factor is shown.

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Ivanchenko, A. V., and A. S. Tonkoshkur. "Influence of ambient temperature on electrical properties of varistor-positor structure." Технология и конструирование в электронной аппаратуре, no. 1-3 (2022): 3–7. http://dx.doi.org/10.15222/tkea2022.1-3.03.

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Recently, the combined two-layer structure based on varistor ceramics and polymer posistor nanocomposites with carbon filler (known as PolySwitch resettable fuses) has been seen as one of the promising elements for protecting electrical circuits from long-term overvoltages. The varistor and posistor layers are in thermal contact. The main functional property of such a structure is a sharp increase (by several orders of magnitude) in the electrical resistance of the posistor nanocomposite layer during the transfer of thermal energy from the varistor layer heated by overvoltage. Detailed informa

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Bkkar, Muhammad Ahmad, Roman Olegovich Olekhnovich, and Mayya Valerievna Uspenskaya. "Perovskite Nanocomposite Layers Engineering for Efficient and Stable Solar Cells." Journal of Nano Research 71 (January 25, 2022): 71–109. http://dx.doi.org/10.4028/www.scientific.net/jnanor.71.71.

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Recently, perovskite nanocomposites have attracted much ‎attention as active layers due to the relatively high stable efficiency of solar cells based on them. In this ‎paper, we study perovskite nanocomposite layers based on ‎semiconductive/nonconductive molecules or polymers, their deposition methods, properties, and ‎influence on the device performance. We have found that the quality of the ‎perovskite layer (morphology and crystallinity, cross-linked grains, trap states density, as well as ‎conductivity and charge carrier mobility) is strongly affected by various factors ‎related to the add

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Zhu, Shuze, Jason Galginaitis, and Teng Li. "Critical Dispersion Distance of Silicon Nanoparticles Intercalated between Graphene Layers." Journal of Nanomaterials 2012 (2012): 1–4. http://dx.doi.org/10.1155/2012/375289.

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Nanocomposites of silicon nanoparticles (Si NPs) dispersed in between graphene layers emerge as potential anode materials of high-charge capacity for lithium-ion batteries. A key design requirement is to keep Si NPs dispersed without aggregation. Experimental design of the Si NP dispersion in graphene layers has remained largely empirical. Through extensive molecular dynamics simulations, we determine a critical NP dispersion distance as the function of NP size, below which Si NPs in between graphene layers evolve to bundle together. These results offer crucial and quantitative guidance for de

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Jeong, Soo Kyeong, and Nam Ju Jo. "The Effect of Silicate Layers on Electrochemical Properties in Nanocomposite Solid Polymer Electrolytes." Key Engineering Materials 336-338 (April 2007): 526–29. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.526.

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Nanocomposite solid polymer electrolytes (NSPEs) based on poly (vinylidene fluoride) (PVDF) were prepared by dispersing organically modified clay (Cloisite®30B, C30B) consisted of silicate layers in the polymer matrix. And ion conductive properties were investigated in relation to dispersed condition of silicate layers and structural changes of nanocomposites. The characterizations of PVDF/C30B nanocomposites with various C30B contents were analyzed by XRD, DSC, DMA and SEM. In order to confirm the ion conductive properties of NSPEs added to lithium trifluoromethansulfonate (LiCF3SO3) at room

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Serban, Bogdan-Catalin, Cornel Cobianu, Octavian Buiu, et al. "Ternary Nanocomposites Based on Oxidized Carbon Nanohorns as Sensing Layers for Room Temperature Resistive Humidity Sensing." Materials 14, no. 11 (2021): 2705. http://dx.doi.org/10.3390/ma14112705.

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This paper presents the relative humidity (RH) sensing response of a resistive sensor employing sensing layers based on a ternary nanocomposite comprising graphene oxide-oxidized carbon nanohorns-polyvinylpyrrolidone (GO-CNHox–PVP), at 1/1/1, 1/2/1, and 1/3/1 w/w/w mass ratios. The sensing structure is composed of a silicon substrate, a SiO2 layer, and interdigitated transducers (IDT) electrodes, on which the sensing layer is deposited via the drop-casting method. The morphology and the composition of the sensing layers are investigated through scanning electron microscopy (SEM) and RAMAN spec

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Ahmad Rasyid, Mohd Fadli, Md Akil Hazizan, and Jamaliah Mohd Sharif. "Influence of Organo-Clay on Mechanical and Thermal Properties of O-Muscovite/PP Layered Silicate Nanocomposite." Advanced Materials Research 364 (October 2011): 174–80. http://dx.doi.org/10.4028/www.scientific.net/amr.364.174.

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O-Muscovite/PP Layered Silicate Nanocomposites were prepared via melt compounding using different filler content. Muscovite was organomodified with Cetyldimethylethylammonium bromide (CEDAB). The thermal and mechanical properties of nanocomposites, based on polypropylene (PP) filled by organo-clay (O-Muscovite), were studied in order to clarify the effect of O-Muscovite on the O-Muscovite/PP layered silicate nanocomposites by WAXD, TEM and DSC analyses. XRD indicated that O-Mica layers were intercalated and dispersed into polypropylene. Analysis of test data shows that, addition of organo-clay

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Zięba, Magdalena, Cuma Tyszkiewicz, and Paweł Karasiński. "Europium-Doped Nanocomposite TiOx:SiOy Layers." Photonics Letters of Poland 17, no. 1 (2025): 7–9. https://doi.org/10.4302/plp.v17i1.1313.

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The work presents TiOx:SiOy nanocomposite layers doped with Eu3+ions. Layers were fabricated using the sol-gel method and dip-coating technique. It was shown that the viscosity of sols and the size of optical band gaps increase with increasing concentration of europium ions. Considering the quantum size effect, it was found that the presence of europium ions causes a weakening of the crystallization of titanium oxide. This means that the diameters of scattering centers are smaller and the layer’s surfaces have lower roughness. In this way, the presence of europium ions in TiOx:SiOy waveguide l

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Дементьев, П. А., E. B. Иванова та M. B. Заморянская. "Ловушки в нанокомпозитном слое кремний-диоксид кремния и их влияние на люминесцентные свойства". Физика твердого тела 61, № 8 (2019): 1448. http://dx.doi.org/10.21883/ftt.2019.08.47968.454.

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The traps in thermal films of silicon dioxide and silicon dioxide with a nanocomposite layer on the surface were investigated by Kelvin-probe microscopy and cathode luminescence. In the layers, both electron traps and hole traps are observed. The effect of the charge state of electron traps on the luminescent properties of films is demonstrated. It is shown that in the presence of a nanocomposite layer in silicon dioxide films, the number of electron traps increases, but their activation energy remains close to the activation energy of traps in pure silicon dioxide, which suggests that the nat

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Li, Y. Z., and Jun Zhao. "Preparation and Mechanical Properties of Al₂O₃/TiCN Sandwich Nanocomposite Ceramic Tool Materials." Advanced Materials Research 97-101 (March 2010): 1126–29. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.1126.

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A model for designing sandwich nanocomposite ceramic tool materials with symmetrical distribution was presented. By adding nano-sized Al2O3 particles into the submicro-sized Al2O3 and TiCN, Al2O3/TiCN sandwich nanocomposite ceramic tool materials were fabricated by means of powder-laminating and hot-pressing technique. The experimental results showed that optimal mechanical properties were achieved for the composite with the addition of 35 vol.% TiCN particles in the middle layer and 45 vol.% TiCN particles in the outer layers, layer thickness ratio is 0.3, with the flexural strength reaching

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Huang, Hongyong, Zhiyou Guo, Sitong Feng, et al. "Fabrication of Graphene-Metal Transparent Conductive Nanocomposite Layers for Photoluminescence Enhancement." Polymers 11, no. 6 (2019): 1037. http://dx.doi.org/10.3390/polym11061037.

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In this work, the synthesis and characterization ofgraphene-metal nanocomposite, a transparent conductive layer, is examined. This transparent conductive layer is named graphene-Ag-graphene (GAG), which makes full use of the high electron mobility and high conductivity characteristics of graphene, while electromagnetically induced transparency (EIT) is induced by Ag nanoparticles (NPs). The nanocomposite preparation technique delivers three key parts including the transfer of the first layer graphene, spin coating of Ag NPs and transfer of the second layer of graphene. The GAG transparent cond

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Toader, Gabriela, Aurel Diacon, Edina Rusen, et al. "A Facile Synthesis Route of Hybrid Polyurea-Polyurethane-MWCNTs Nanocomposite Coatings for Ballistic Protection and Experimental Testing in Dynamic Regime." Polymers 13, no. 10 (2021): 1618. http://dx.doi.org/10.3390/polym13101618.

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This study describes a simple, practical, inexpensive, improved, and efficient novel method for obtaining polyurea-polyurethane-multiwall carbon nanotubes (MWCNTs) nanocomposites with enhanced mechanical properties, and their experimental testing in a dynamic regime. SEM and micro-CT investigations validated the homogeneity of the nanocomposite films and uniform dispersion of the nanofiller inside the polymeric matrix. The experimental measurements (TGA, DSC, DMA, and tensile tests) revealed improved thermal and mechanical properties of these new materials. To demonstrate that these nanocompos

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Pakseresht, M., R. Ansari, and MK Hassanzadeh-Aghdam. "Laminate analogy approach for the effective elastic properties of metal matrix nanocomposites filled with randomly dispersed graphene nanoplatelets." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 234, no. 6 (2019): 1212–19. http://dx.doi.org/10.1177/0954406219888958.

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In this study, the laminate analogy technique is utilized to calculate the elastic properties of metal matrix nanocomposites filled with graphene nanoplatelets. The graphene nanoscale fillers are the most commonly used form of graphene inclusions, which are mostly considered to be disk-shaped. With the help of the Eshelby tensor, the effects of three different shapes of graphene inclusions on the mechanical response are examined. Combining layers of metal matrix composite lamina reinforced by uniformly dispersed graphene inclusions, which are aligned differently in each layer, the metal matrix

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Rahman, Zia Ur, Tingting Zhang, Siwen Cui, and Daoai Wang. "Preparation and characterization of magnetic nanocomposite catalysts with double Au nanoparticle layers." RSC Advances 5, no. 121 (2015): 99697–705. http://dx.doi.org/10.1039/c5ra18119d.

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Nanocomposite catalysts, with single and double gold layers, and with one gold layer and one silver layer were prepared through simple steps, and showed excellent activity in the reduction of nitrophenols.

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Wang, Sheng Qin, Mohit Sharma, and Yew Wei Leong. "Polyamide 11/Clay Nanocomposite Using Polyhedral Oligomeric Silsesquioxane Surfactants." Advanced Materials Research 1110 (June 2015): 65–68. http://dx.doi.org/10.4028/www.scientific.net/amr.1110.65.

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This paper reports polyamide 11 (PA11)/layered silicate (clay) nanocomposite using polyhedral oligomeric silsesquioxane (POSS) surfactants. POSS functionalized with amino, ammonium and guanidinium groups were synthesized and used to facilitate the intercalation of polymer chains between silicate layers thereby to improve the dispersion of clay in polymer matrix. Nanocomposites from the blends of POSS-modified clay and PA11 were thus formulated via melting compounding and their mechanical and physical properties were characterized.

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Zhang, Huaibin, Wenyan Huang, and Sridhar Komarneni. "Polymer-Clay Nanocomposites for the Uptake of Hazardous Anions." Nanomaterials 14, no. 5 (2024): 467. http://dx.doi.org/10.3390/nano14050467.

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Polymer intercalated clay nanocomposites were prepared from various montmorillonites (Mt) and a polymer, polydiallyldimethylammonim (PDDA) chloride. X-ray diffraction (XRD) analysis of the above polymer intercalated nanocomposites showed either no crystalline peaks or very broad peaks with the intercalation of PDDA polymer in the interlayers, probably as a result of exfoliation of the clay layers. Infrared spectroscopy revealed the presence of PDDA in all the clay nanocomposite materials. The maximum adsorption capacities of nitrate, perchlorate, and chromate by one of the polymer intercalated

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Matysiak, W., and K. Adamczyk. "The analysis of surface morphology, band gaps and optical properties of PAN/GO thin films." Archives of Materials Science and Engineering 2, no. 101 (2020): 49–56. http://dx.doi.org/10.5604/01.3001.0014.1190.

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Purpose: PAN/GO nanocomposites are gaining more and more interest from research and industrial environments. According to theoretical studies and experimental tests, PAN/ GO exhibits excellent properties such as tensile strength, good thermal and electrical conductivity, excellent thermal and tribological properties. Thanks to this property, the composite is considered the ideal successor to the nanocomposites used so far. The PAN/GO nanocomposite has great potential in the filtration, automotive, electrical and photovoltaic industry. Design/methodology/approach: The spin-coating process is us

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Malar Kodi, A., V. Doni Pon, and K. S. Joseph Wilson. "Analysis of photonic band gap in novel piezoelectric photonic crystal." Modern Physics Letters B 32, no. 08 (2018): 1850024. http://dx.doi.org/10.1142/s0217984918500240.

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The transmission properties of one-dimensional novel photonic crystal having silver-doped novel piezoelectric superlattice and air as the two constituent layers have been investigated by means of transfer matrix method. By changing the appropriate thickness of the layers and filling factor of nanocomposite system, the variation in the photonic band gap can be studied. It is found that the photonic band gap increases with the filling factor of the metal nanocomposite and with the thickness of the layer. These structures possess unique characteristics enabling one to operate as optical waveguide

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Ha Thuc, C. N., H. T. Cao, D. M. Nguyen, et al. "Preparation and Characterization of Polyurethane Nanocomposites Using Vietnamese Montmorillonite Modified by Polyol Surfactants." Journal of Nanomaterials 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/302735.

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This study focuses on the preparation of thermoplastic polyurethane (TPU) nanocomposite using Vietnamese montmorillonite (MMT) as the reinforced phase. The MMT was previously modified by intercalating polyethylene oxide (PEO) and polyvinyl alcohol (PVA) molecules between the clay layers. X-ray diffraction (XRD) results of organoclays revealed that galleries of MMT were increased to 18.2 Å and 27 Å after their intercalation with PEO and PVA, respectively. Thermoplastic polyurethane (TPU) nanocomposites composed of 1, 3, 5, and 7%wt organoclays were synthesized. The result of XRD and transmissio

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Ivkov, Sergey A., Konstantin A. Barkov, Evelina P. Domashevskaya, et al. "Nonlinear Transport and Magnetic/Magneto-Optical Properties of Cox(MgF2)100-x Nanostructures." Applied Sciences 13, no. 5 (2023): 2992. http://dx.doi.org/10.3390/app13052992.

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The aim of this work was to comprehensively study the effect of the variable atomic composition and structural-phase state of Cox(MgF2)100-x nanocomposites on their nonlinear transport and magnetic/magneto-optical properties. Micrometer-thick nanocomposite layers on glass substrates were obtained by means of ion-beam sputtering of a composite target in the argon atmosphere in a wide range of compositions (x = 16–59 at.%). Using a low metal content in the nanocomposite, magnesium fluoride was kept in the nanocrystalline state. As the metal content increased, nanocrystalline cobalt was formed. T

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Sahoo, Prafulla K., Trinath Biswal, and Ramakanta Samal. "Microwave-Assisted Preparation of Biodegradable Water Absorbent Polyacrylonitrile/Montmorillonite Clay Nanocomposite." Journal of Nanotechnology 2011 (2011): 1–11. http://dx.doi.org/10.1155/2011/143973.

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Polyacrylonitrile (PAN)/Montmorillonite (MMT) clay nanocomposite was prepared in a microwave oven using a transition metal Co(III) complex taking ammonium persulfate (APS) as initiator with a motive of converting hydrophobic PAN into hydrophilic nanocomposite material via nanotechnology by the inclusion of MMT to the virgin polymer. UV-visible spectral analysis revealed various interactions between the developed complex with other reaction components. The formation of the PAN/MMT nanocomposites was characterized by FTIR. Furthermore, as evidenced by X-ray diffraction (XRD), transmission electr

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Sundar, Udhay, Zichen Lao, and Kimberly Cook-Chennault. "Investigation of Piezoelectricity and Resistivity of Surface Modified Barium Titanate Nanocomposites." Polymers 11, no. 12 (2019): 2123. http://dx.doi.org/10.3390/polym11122123.

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Polymer-ceramic nanocomposite piezoelectric and dielectric films are of interest because of their possible application to advanced embedded energy storage devices for printed wired electrical boards. The incompatibility of the two constituent materials; hydrophilic ceramic filler, and hydrophobic epoxy limit the filler concentration, and thus, their piezoelectric properties. This work aims to understand the role of surfactant concentration in establishing meaningful interfacial layers between the epoxy and ceramic filler particles by observing particle surface morphology, piezoelectric strain

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Tsakova, Vessela, Svetlozar Ivanov, Ulrich Lange, Aneliya Stoyanova, Vladimir Lyutov, and Vladimir M. Mirsky. "Electroanalytical applications of nanocomposites from conducting polymers and metallic nanoparticles prepared by layer-by-layer deposition." Pure and Applied Chemistry 83, no. 2 (2010): 345–58. http://dx.doi.org/10.1351/pac-con-10-08-01.

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Layer-by-layer (LbL) deposition is a convenient technique for the formation of ultra-thin nanocomposite layers containing metallic nanoparticles (NPs) and conducting polymers (CPs). The advantages of this approach for producing composite layers suitable for electroanalytical applications are discussed. Examples of electroanalytical applications of LbL-deposited composites are presented. Composite layers consisting of polyaniline (PANI) and Pd NPs are used for hydrazine oxidation. The PANI–Au NPs system is applied for dopamine (DA) and uric acid (UA) oxidation.

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Bagheri-Kazemabad, Sedigheh, Alireza Khavandi, Daniel Fox, Yan Hui Chen, Hong Zhou Zhang, and Bi Qiong Chen. "Effect of the Compatibilizer on Clay Dispersion in Polypropylene/Clay Nanocomposites." Advanced Materials Research 622-623 (December 2012): 847–50. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.847.

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Polypropylene (PP)/clay nanocomposites were prepared via a melt mixing technique. Two types of compatibilizers, namely poly (ethyleneco-octene) (EOC-g-MA) and polypropylene grafted maleic anhydride (PP-g-MA), were selected to facilitate the nanocomposite formation. X-ray diffraction and transmission electron microscopy in conjunction with rheological analysis were used for studying the dispersion state of clay layers in these nanocomposites. The results showed with the introduction of EOC-g-MA to PP/clay, clay was dispersed better than the presence of PP-g-MA.

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Lertkongyos, Pailin, Ponusa Songtipya, Thummanoon Prodpran, Supachai Pisuchpen, and Ladawan Songtipya. "Poly(lactic acid)/silver/benzyl dodecyl dimethylammonium modified montmorillonite nanocomposite with antifungal activity for food packaging application." International Food Research Journal 31, no. 4 (2024): 858–71. https://doi.org/10.47836/ifrj.31.4.05.

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Active biodegradable food packaging with antimicrobial properties is desirable for prolonging the shelf life of food products while minimising waste streams originating from the food supply chain. In the present work, a novel antifungal nanocomposite was prepared by a two-step melt-blending process using poly(lactic acid) (PLA) incorporated with 5 and 8 php of modified clay. The modified clay consisted of sodium montmorillonite (Na+-Mt) modified with silver (Ag) and benzyl dodecyl dimethylammonium chloride (BDAC) at different Ag and BDAC ratios. X-ray diffraction spectra and photomicrographs r

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