All articles
1751 articles
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Structural, Electronic and Optical Properties of ZnO Material Using First Principle Calculation
Abstract: Structural, electronic and optical properties have been determined by using first principle calculation for ZnO material. In present study, full potential linearized augmented plane wave method has been selected with generalised gradient approximation executed in WIEN2k. Structure of ZnO material stabilises in the Wurtzite form of hexagonal closed packed crystal with lattice constant a=3.289Å, c= 5.307Å. Density of states and band structure diagram of ZnO material shows semiconductor nature with …
Published in Journal of Polymer & Composites · Vol. 11, Issue 5, 2023 · pp. 27–34 Read article
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Investigation of Electro-optical Characteristic and Structure Optimization of PMMA: Bepq2/BCP/Tpbi Blue Highly Efficient OLED Device
Abstract: In this Investigation, the energy level structure of the Spiro-MeOTAD/PMMA: Bepq2/BCP/Tpbi/LiF OLED has been investigated to explain the method of electron-hole charge carrier pair recombination and the light generation. The Maxwell-Boltzmann statistics model was applied to optimize the structure to reduce the band gap between conductive layers. We found the simulated results J–V, J-Illumination flux, and Current Efficiency (CE) characteristics when we applied forward bias. Inconclusive results determined the threshold …
Published in Journal of Polymer & Composites · Vol. 11, Issue 5, 2023 · pp. 56–68 Read article
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Enhanced Thermal Stability and Thermophysical Properties of High Density Polyethylene Based Polymer Composite Synthesized Through Compression Moulding Route
Abstract: Polymer composite materials attract researchers as polymers can be filled with different fillers to get desired properties. Thermophysical properties of HDPE-silicon composite is reported in the present study. HDPE-Si composite was synthesized by hot compression and molding technique for different silicon volumetric ratio. Thermal conductivity as well as thermal diffusivity was found to be enhanced significantly on increasing the filler volumetric ratio. Thermal conductivity value for 20 volume % composite …
Published in Journal of Polymer & Composites · Vol. 11, Issue 5, 2023 · pp. 1–16 Read article
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A Study of Composite Concrete Using Palm Oil Fuel Ash (POFA) as a Partial Replacement for Cement in Self Compacting Concrete
Abstract: Due to its flexibility at young ages and its capacity to be moulded into any necessary structural form and shape, concrete is the most commonly used construction material. For concrete to be workable and to have the necessary strength and durability, thorough compaction utilising vibration is typically necessary. Large numbers of voids are caused by inadequate concrete compaction affecting the structural strength and long-term toughness. Self-Compacting Concrete (SCC) offers a …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 76–86 Read article
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A Comprehensive Review of Concrete Containing Magnetically Treated Water
Abstract: In Present scenario, Construction has benefited greatly from the characteristics of concrete and the magnetism of water. The procedure of permitting water to pass through the magnetic field is part of creating magnetised water, utilizing those properties of concrete that can affect such as compressive strength, workability, porosity, permeability, durability, water absorption capacity, hydration rate and aqueous ratio. Reduced cement usage and improved mechanical and technical qualities of concrete are …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 52–64 Read article
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Experimental Study on Fresh and Mechanical Properties of Crimpled Steel Fibers in Self-compacting Concrete
Abstract: The flow and strength characteristics of fiber-reinforced self-compacting concrete (SCC) with different aspect (l/d) ratios of fibers are recommended to be studied. After achieving a satisfactory SCC mix, crimped steel fibers with l/d ratio 30 are designated as CSF30; with l/d ratio 40 are designated as CSF40, with l/d ratio 50 is designated as CSF50 and with l/d ratio 62.5 is designated as CSF62.5 fibers are added at a fixed …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 65–75 Read article
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A Comparative Analysis of Graphene Based Terahertz Reconfigurable Antennas: A Review
Abstract: In this paper, an overview of various reconfigurable antenna designs based on graphene material utilized for terahertz applications is presented. Terahertz electromagnetic spectrum is the term used to describe the frequency range between 0.1 and 10 THz. A promising material for THz reconfigurable antennas, graphene has a low skin effect and a built-in ability to tune by chemical or electrostatic gating. This study reviews the development of reconfigurable antenna for …
Published in Journal of Polymer & Composites · Vol. 11, Issue 5, 2023 · pp. 44–55 Read article
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Influence of Dielectric and Active layer Thickness on MgZnO Thin Film Transistor Electrical Characteristics
Abstract: From last decades, Thin Film Transistors Technology uses low-k dielectric material as an insulator. Insulator thickness plays an important role in device dimension. The insulating layer also known as the gate oxide separates the gate electrode from the channel region of the transistor. If the insulating layer is too thin, there is a greater chance that electrons can tunnel through the oxide layer, leading to leakage current. To mitigate this …
Published in Journal of Polymer & Composites · Vol. 11, Issue 5, 2023 · pp. 17–26 Read article
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Effect of Chemically Treated Plant Cellulose on Mechanical, Fatigue and Fracture Toughness Behaviour of Polyester Composite
Abstract: In this research study, the effect of chemically treated plant cellulose on the mechanical, fatigue, and fracture toughness behaviour of polyester composites was investigated. Ramie plant cellulose fibers were used as the reinforcing material, and polyester resin was used as the matrix material. Three different chemical treatment processes, namely alkalization, acetylation, and etherification, were used to adapt the superficial chemistry of the fibers and advance their compatibility with the polyester …
Published in Journal of Polymer & Composites · Vol. 11, Issue 3, 2023 · pp. 21–29 Read article
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Study of Electrochemical and Mechanical Properties of Graphene/HAp Composite Coating on Ti-13Nb-13Zr Alloy via Electrophoretic Deposition for Biomedical Application
Abstract: Titanium-13niobium-13zirconium alloy has widespread potential in biomedical applications due to its high degree of biocompatibility, favourable mechanical properties, high corrosion resistance, and high possibility of osseointegration. The surface was improved by electrophoretic deposition method using hydroxyapatite and graphene (5 g nanoHAp) (5 g nanoHAp+0.06 nanoGr) and suspended in ethanol solution at different conditions of time (1, 3, and 7 minutes) and voltage (50, 70, and 100 V). The effect of …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 91–106 Read article
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Evaluation of Inhibition Effect of Nanohybrid Curcumin (Cur-ZnO) and Cur-free Against Some Types of Bacteria
Abstract: This study aimed to prepare an efficient nanohybrid food preservative by loading curcumin on zinc oxide. The prepared compound was characterized using microscopy and spectral methods. Fourier transform infrared spectrum of the nanohybrid curcumin showed a shift in the frequencies of some chemical groups towards high and low frequencies. X-ray diffraction (XRS) spectrum also revealed the emergence of new diffraction planes in the nanohybrid compound, Compared with the carrier spectrum …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 68–79 Read article
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Preparation and Characterization of TiO2 Nanoparticles by Green Method
Abstract: In this study, we attempted to synthesize TiO2 nanoparticles utilizing titanium tetrachloride as a precursor and an aqueous extract of Sansevieria plant leaves. Atomic force microscopy (AFM), X-ray diffraction (XRD) pattern, scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and Brunauer-Emmett-Teller (BET) analysis were used to identify the synthesized TiO2 nanoparticles As per the surface topography, the average diameter of nanoparticles is considered as 67.73 nm. Debye-Scherrer equation was …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 61–67 Read article
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The Study of Gravimetric Thermal Analysis and Some Physical Properties of a Binary Polymeric Mixture of Unsaturated Ester and Peach Seed Powder
Abstract: Strengthening polyester resin and increasing its hardening was studied by adding peach seed powder. We also studied how to change the thermal properties after strengthening the resin by adding different weight percentages of peach seed powder (5%, 10%, 15%). The thermal properties of polyesters were studied before and after cementing, which included thermogravimetric analysis (TGA) and treatment at different temperatures (21, 51, 81, 121, 151ºC.) The effect of acidic functions …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 33–46 Read article
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The Effect of Dried Green Alga Chlorella sorokiniana MH923013 on Corrosion Protection of Stainless Steel in Saline Media
Abstract: Metals interact with their surroundings to undergo corrosion, which is also defined as surface damage or metal decline in an aggressive setting. The objective of the current study was to assess the ability of the green alga Chlorella sorokiniana MH923013 to prevent corrosion of stainless steel in saline medium. Atomic force macroscopy (AFM) and Fourier transform infrared spectroscopy (FTIR) were used to analyse a dry mass of green algae. Electrochemical …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 24–32 Read article
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Laser Ablation Technique to Synthesize Ag Nanoparticles in Harsh Environment During Conjugation with Ovalbumin and Their Effects on Candida albicans
Abstract: In this study was developed a rapid, easy, eco-friendly and free-polutions method to AgNPs synthesized which was laser ablation technique to bulk target silver in harsh environment which was SBF due to salts and ions content cause silver nanoparticle aggregated via the interactions among nanoparticles and components of the ionic solution. So, was add ovalbumin to achived long term stability of colloidal AgNPs solution because of this protien has been …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 47–60 Read article
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Preparing Chitosan Hybrid Nanocomposites by Novel Additives for Wound Healing
Abstract: Biomaterials made from chitosan have been discovered to be particularly unique marine polysaccharides (or polycarbohydrates) with a wide range of physico-chemical and biological characteristics suitable for biomedicine field. Due to net positive charge of chitosan, it is essentially capable of chemically binding with negatively charged surfaces A biodegradable blend of chitosan nanoparticles (CHT), poly vinyl alcohol (PVA) and polyethylene glycol (PEG) hybridized with metal oxides nanopowders were prepared and used …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 9–23 Read article
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Effect of Formaldehyde Treatment on the Barrier and Mechanical Properties of Oat Protein Films
Abstract: Oat protein 5% with 40% glycerol as a plasticizer was used to prepare edible films, and formaldehyde was chemically added to the film's solution at four concentrations. The films' barrier and mechanical properties were then investigated. The films were characterized by being medium transparency, homogeneous, odorless, and with a thickness ranging between 0.12 and 0.15 mm. It was also observed that the water vapor permeability decreased whenever the concentration of …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 1–8 Read article
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Taguchi Method: A New Approach for Evaluating and Optimizing Parameters of TIG Welding
Abstract: The construction and industrial sectors must improve the quality of their welds. An experimental plate fabricated of SS304L was to be tungsten inert gas (TIG) welded in this experiment, and an effort was made to enhance the mechanical properties. The Taguchi L9 orthogonal array was used to organize the experiment, and the mechanism of advancement was used to simulate the performance. The tensile strength of the welded junction rises in …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 121–129 Read article
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Influence of Crystallization Time by Hydrothermal Synthesis of Ag NPs-Zeolite Composite
Abstract: Inorganic molecules undergo a chemical reaction that results in the production of a brand-new building material known as geopolymer concrete. Otherwise known as an inorganic aluminohydroxide polymer, geopolymer is made mostly from by-products like fly ash and geologically derived silicon (Si) and aluminium (Al). It is a superior building material for the future because of its great mechanical qualities, significant chemical resistance (attack by magnesium or sulphate), low shrinkage and …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 46–51 Read article
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Water Quality Index Assessment of the Groundwater of Industrial Area and Absorption by Polymer Composites
Abstract: Introduction: Water plays a pivotal role in the existence of human life. Water quality index is an important parameter that helps in improving the quality of drinking and groundwater. Due to anthropogenic activities, the quality of ground and drinking water is decreased. Objective: The main objective of research is to find the water quality index of the groundwater and bore water in selected industrial area of Kakinada and analyse the …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 36–45 Read article