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1397 articles for “stabilizers”
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A Study on the Effect of Ionic Conductivity on Addition of Salt for Polymer Nanocomposite Gel Electrolyte for Solar Cell Applications
Abstract: AbstractDye sensitized solar cells (DSSC) have attracted greater attention in the recent years because of their relatively high energy conversion efficiency and low cost. In the DSSCs, the electrolytes play a vital role in the determination of the efficiency and long term stability. In this investigation, we report on the synthesis, characterization and conductivity study of polymer nanocomposite gel electrolyte. Cadmium oxide nanoparticles were added into polymer blend of poly …
Published in Journal of Polymer & Composites · Vol. 3, Issue 3, 2015 · pp. 8–15 Read article
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Design, Analysis and Fabrication of Composite Leaf Spring
Abstract: AbstractNowadays composite materials are one of the materials which are greatly attracting researchers. Reducing weight and increasing or maintaining the strength of materials is getting to be highly important research issue in this modern world. In this paper, design, fabrication and analysis of composite leaf spring have been presented. The objective is to design a composite leaf spring with reduced length and weight as compared to steel leaf spring. The …
Published in Journal of Polymer & Composites · Vol. 2, Issue 3, 2023 · pp. 4–14 Read article
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Parametric Study of Twin Screw Extrusion for Processing Epoxy/Carbon Black Nanocomposites Using Orthogonal Array Technique
Abstract: AbstractThis paper presents the experimental investigation of the influence of process parameters of twin screw extrusion on the dispersion and electrical, thermal and mechanical properties of epoxy/CB nanocomposites. Four factors, namely, loading level of carbon black (0, 2, 4, 6, 8 and 10 wt%) in epoxy, screw speed (75, 100 and 125 rpm), temperature (5 °, 15 ° and 30 °C) and number of passes (5, 10 and 15) were …
Published in Journal of Polymer & Composites · Vol. 1, Issue 2, 2013 · pp. 15–26 Read article
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Investigation of Dielectric Properties of a Novel Hybrid Polymer Composite using Industrial and Bio-waste
Abstract: AbstractFly ash is an industrial waste which creates environmental problems. Coir dust is a byproduct of coir fiber production. Novel low-cost hybrid polymer composite using coir dust and fly ash particle reinforcement is prepared. Investigation of dielectric behavior of this hybrid polymer composite proves its efficacy as a high-value marketable product. Individual compacts of coir dust, fly ash, coir dust and fly ash are also prepared for comparison with the …
Published in Journal of Polymer & Composites · Vol. 1, Issue 1, 2013 · pp. 22–27 Read article
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Effect of Softening Agents in the Thermal and Morphological Properties of Starch Based Bioplastics
Abstract: Plasticization of starch with 1,2,3-trihydroxy-propane (glycerol) as a softening agent (plasticiser) can replace the starch-starch bonds to starch-massive glycerol bonds, which offers stability, improved physicochemical and functional properties of starch. This study is an investigation on the thermal and morphological properties of bio plastic samples made of starch with varying plasticiser contents (8, 6.5, 5, 3.5 and 2 ml) and are evaluated by methods like thermogravimetric analysis (TGA), differential scanning …
Published in Journal of Polymer & Composites · Vol. 5, Issue 1, 2017 · pp. 15–24 Read article
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Effect of silicon carbide on the mechanical properties of the rice husk, corn cob polymer matrix composites
Abstract: Throughout the world there have been alarming concerns over the use of non renewable resources during manufacturing of goods and associated environmental legislations. Therefore, the use of natural materials and fabrication of composites there from, particularly, development of natural fibre reinforced polymer composites is gaining significant attention. Although natural fibre reinforced composites (NFRCs) show strong application prospects, various materials and processing related challenges needs to be addressed to achieve long-term …
Published in Journal of Polymer & Composites · Vol. 8, Issue 1, 2020 · pp. 39–45 Read article
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Novel Porous Refractory Synthesized from Diatomaceous Earth and Rice Husk Ash
Abstract: Refractory materials are products used in thermal equipment to protect the fire and prevent heat loss to the outside environment. Thermal equipment such as driers, ceramic kilns, glass or metal furnaces and others always consume high heat in the combustion of the fuel. If the thermal equipments have high heat loss which cause wastes of fuel and increases production costs. Therefore, researchers are always looking for a solution to minimize …
Published in Journal of Polymer & Composites · Vol. 8, Issue 2, 2020 · pp. 128–137 Read article
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Effects of Plasticizers on Structures of Chemical Functional Groups, Morphologies, Water Vapor Permeability, and Thermal Properties of HPMC/BW Biopolymer Films
Abstract: Food preservation is one of the fields that many researchers are interested in, especially in the epidemic period like COVID-19 today. The better food or agricultural products are preserved for a long time, the more it ensures social stability for state management related to food security for people. This paper introduces one kind of biopolymer films with investigation on effect of plasticizers to its characteristics. In order to produce biopolymers, …
Published in Journal of Polymer & Composites · Vol. 9, Issue 2, 2021 · pp. 10–20 Read article
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Competency of Natural Fiber Based Eco-Friendly Friction Lining Composites Over the Conventional Friction Material
Abstract: The Braking system is important system of automobiles and is responsible for providing better performance and safety. A Millions of automobiles are frequently decelerated and stopped at heavy traffic zone. Overall performance of vehicle braking system depends on braking conditions and brake material. All friction based application releases wear products; either gaseous form or particulate matter form and braking system is prime source of non exhaust particulate matter emission. The …
Published in Journal of Polymer & Composites · Vol. 9, Issue 2, 2021 · pp. 57–65 Read article
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Developments in Functional PVC and Its Composites
Abstract: The main aim of this review study is to summarise the progress and recent modifications in the area of functionalised PVC including chlorinated PVC, PVC copolymers and their composite developments. Functionalized PVC and its copolymers shown very good improved properties which enhanced the PVC application domain as compare to other polymers. Due to the higher chlorine content polyvinyl chloride (PVC) shows higher mechanical and fire-resistive properties which are suitable for …
Published in Journal of Polymer & Composites · Vol. 10, Issue 1, 2022 · pp. 55–67 Read article
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Synthesis of PANI/RGO/NiCrO Nanocomposite Material for Charge Storage Application
Abstract: PANI/RGO/NiCrO nanocomposite is synthesized by chemical oxidative polymerization of aniline and Nickel-Chromium Oxide (NiCrO). The prepared PANI/RGO/NiCrO nanocomposite exhibited high specific capacitance of 800 F/g at the scan rate of 5 mV/s, high power density of 1399.44 Wkg-1 and high energy density of 70 Whkg-1. The as-prepared polymer nanocomposites were characterized by X-ray diffraction (XRD) to study crystallinity, Fourier transform infrared spectroscopy (FTIR) to know the functional groups, Transmission electron …
Published in Journal of Polymer & Composites · Vol. 10, Issue 1, 2022 · pp. 89–99 Read article
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Influence of B2O3 and Li2O on Physical, Thermal and Spectroscopic properties of Bi2O3-B2O3-CdO-Li2O glass system
Abstract: ABSTRACT Bismuth Borate based glasses with compositions BiBCL: 40Bi2O3-(40-X) B2O3-20CdO-XLi2O where x=5,10,15,20,25 mol% were prepared by conventional melt quenching technique. X-ray diffraction (XRD), differential thermal analysis (DTA), UV-VIS absorption spectroscopy, Fourier transform-infrared (FTIR), and Raman spectroscopies were used to analyse the synthesized samples. Through XRD and SEM studies, the synthesized glasses amorphous nature was confirmed. To evaluate the physical and structural characteristics of the glasses, calculations were made for the …
Published in Journal of Polymer & Composites · Vol. 11, Issue 1, 2023 · pp. 51–62 Read article
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IMPACT OF HYDRATED LIME AND SBS ON HMA MOISTURE SUSCEPTIBILITY
Abstract: Abstract In recent years, many of the newly built asphalt and concrete roads in Baghdad and other Iraqi cities have broken down too soon. This has hurt the country's economy and public safety. One of the main reasons why these newly built roads break down is because of water damage. Leaking water weakens the bond between the aggregate and the asphalt, which makes it more likely that sidewalks will fall …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 81–93 Read article
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THE THICKNESS EFFECT ON TiO 2 THIN FILMS FABRICATED BY USING SOL- GEL DIP COATING METHOD
Abstract: Titanium dioxide films were prepared by sol-gel dip-coating technique onto glass substrates at room temperature. The study focuses on the structural pattern of TiO 2 films which were dominated by the parameters such as the film thickness, pH, annealing temperature and number of dipping layers. At first the dipping speed is optimized with the refractive index of the film along with the number of dipping layers. Then the film deposited …
Published in Journal of Polymer & Composites · Vol. 12, Issue 1, 2024 · pp. 1–10 Read article
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Power Framework Steadiness Change Utilizing UPFC
Abstract: This study presents utilization of UPFC in enhancing the voltage profile and upgrading the power framework security. UPFC can enhance the framework solidness when contrasted with different FACTS gadgets, with the assistance of UPFC. It is watched that the solidness of framework can be enhanced and voltage profiles straighten fundamentally with fusing UPFC. Keywords: UPFC, voltage profile, power system stability, PWMCite this ArtclePravin Thorat, Lakade CR. Power Framework Steadiness Change …
Published in Journal of Power Electronics and Power Systems · Vol. 8, Issue 2, 2018 · pp. 38–43 Read article
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Enhancement of ATC using UPFC under Deregulated Environment
Abstract: Available transfer capability is the most important factor for the identification of power transfer from gencos to discos. In a deregulated power system, power producer and customer share a common transmission network for wheeling of the electric power. This may cause violation of line flow, voltage and stability limits and thereby undermine the security limit [1]. To improve the available transfer capability of the system FACTS controllers are used. UPFC …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 1, 2016 · pp. 66–72 Read article
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The Coordinated Approach for Reactive Power Management of Deregulated Electricity Market
Abstract: RPM is an important ancillary service, especially in deregulated energy environment which contains two major areas: reactive power purchase and reactive power dispatch. Various technical and economic issues need to be considered in this market. This work shows RPD as the main optimization problem. As optimized electric power dispatch is important problem in electrical power systems. Cost infimumization, voltage stability improvement, losses minimization, and terminal voltage deviation minimization are important …
Published in Journal of Power Electronics and Power Systems · Vol. 9, Issue 2, 2019 · pp. 5–14 Read article
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Available Transfer Capability (ATC) under Deregulated Environment
Abstract: The structure of the power industry is moving towards deregulated environment from the regulatory environment (monopoly). With deregulation taking place in the power industry, it introduces a more competitive environment in terms of free choice of suppliers for the trading of electricity. Monopolies of an industry will lead to a poor performance from the sector as there are no competitions for the sole company to strive for improvement. It will …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 85–88 Read article
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Shunt Active Power Filter Using Three Level Inverter without PI Controller
Abstract: This paper presents simulation and analysis of shunt active power filter using three level inverter. Different types of filters can be used for elimination of harmonics in the power system with nonlinear load. Three level VSI (Voltage Source Inverter) can be used for high voltage application. Three level NPC (Neutral Point Clamped) VSI is used for active power filter. In this paper, FFT (Fast Fourier Transform) algorithm for reference current …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 3, 2015 · pp. 76–86 Read article
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Optimal Capacity of Pump Storage System for Standalone Green Microgrid Interconnection with Main Grid in Deregulated Power Sector
Abstract: The energy crisis requires more generation capability, and is more importance to the storage technologies. To overcome this shortage of energy, pump storage system is used in the power system with great storing capacity up to this time. The isolated or regional grid in remote areas probably depends on renewable power sources such as wind; solar, geothermal, tidal, etc. with its availability is the main power resources. It is quite …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 100–114 Read article