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18 articles for “sodium hydroxide”
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Utilization of Waste Groundnut Shell Ash in Zero Cement Concrete
Abstract: Currently, geopolymer concrete serves as an excellent alternative to traditional plain cementconcrete, as it is produced without using ordinary Portland cement. Different source materials suchas fly ash, rice husk ash, metakaolin, red mud etc. are preferred to act as the main source forgeopolymer production. In this work, a new innovative waste material such as groundnut ash isutilized as the source material for the manufacture of geopolymer concrete by considering thestrength, …
Published in International Journal of Concrete Technology · Vol. 10, Issue 1, 2024 · pp. 9–17 Read article
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Modeling of CSTR Reactor for Sodium Benzoate Production
Abstract: The mathematical model was developed for Continuous Stirred-Tank Reactor (CSTR) for the production of sodium benzoate from the reaction of sodium hydroxide and benzoic acid. The performance equation for the operation of CSTR was developed for the analysis of the reactor’s functional dimensions and parameters. The analysis of the reactor’s functional parameters was performed at molar ratio of benzoic acid to sodium hydroxide of 1.5 to 3.0 at intervals of …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 4, Issue 1, 2018 · pp. 38–50 Read article
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Chemical Analysis for the Production of Liquid Detergent
Abstract: This research work is focused on rendering chemical analysis on the production of detergent with focus on the application of sodium tripolyphosphate, carboxymethyl cellulose, sulphonic acid, sodium hydroxide (caustic soda), sodium silicate, and others not mentioned. In this analysis, we considered the mixture of detergent production formulated to meet the required cleansing standard of various applications. Therefore, pH of the detergent was maintained between 7 and 8 to avoid corrosion …
Published in International Journal of Chemical Separation Technology · Vol. 8, Issue 2, 2022 · pp. 9–14 Read article
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Mechanical Characteristics of Polypropylene Composites Reinforced with Hybrid Fibers: Fabrication and Evaluation
Abstract: The goal of current research is to replace synthetic materials with natural, biodegradable, and renewable ones. A lot of study is being done on natural fiber composites because of its unique properties and environmental friendliness. Natural fibers are advantageous since they are easily accessible, manageable, and biodegradable. The goal of the current study is to evaluate the changes in the mechanical properties of polypropylene reinforced with chopped pineapple leaf and …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 2, 2023 · pp. 20–31 Read article
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Comparative Studies on Production of Biodiesel from Waste Vegetable Oil (WVO) & Noctiluca Scintillans(NS)
Abstract: The world realized that the main source of energy from crude oil, which leads to the environmental concern and disappeared in few years. That’s how new resolutions are under study looking for alternate fuel to replace the fossil fuels. The research studies have been made in field, but none of which are on a large scale production locally in Oman. Based on scenario, Biomass (algae) can be produced to make …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 5, Issue 1, 2019 · pp. 23–36 Read article
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Enhancing Compressive Strength of Geopolymer Concrete with Micro and Macro Steel Fibers: A Study on Fiber-Reinforced Geopolymers
Abstract: AbstractThis research investigates the impact of micro and macro steel fibers on the compressive strength ofgeopolymer concrete (GPC). The study utilizes locally sourced materials, including river sand,granite aggregates, fly ash, and ground granulated blast furnace slag (GGBS) in a 50:50 ratio asalumino-silicate materials. Sodium hydroxide (NaOH) and sodium silicate (Na₂SiO₃) were employedas activators, with the addition of a superplasticizer (Conplast SP430) to enhance workability. FourGPC mixes were analyzed: GPC without …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 10, Issue 2, 2024 · pp. 15–20 Read article
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Experimental Study of Mechanical Properties Geopolymer Concrete.
Abstract: This experimental study aimed to define the parameters for optimum mix design of geopolymer concrete made by partial replacement of cement. The geopolymer concrete is nothing but the formation of fly ash and alkali activators. Fly ash is the waste product from the thermal power station and may use as the pozzolanic material. But, only fly ash is may not the only replacement for the cement, for the more binding …
Published in International Journal of Concrete Technology · Vol. 5, Issue 2, 2019 · pp. 16–22 Read article
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Mechanical and Thermal Characterization of Natural Fiber-Reinforced Epoxy Composites for Structural Applications
Abstract: Natural fiber reinforced polymer (NFRP) composites have emerged as promising alternatives to conventional synthetic fiber composites owing to their environmental sustainability, low density, and competitive specific mechanical properties. However, a comprehensive and simultaneous evaluation of both mechanical and thermal performance of jute/sisal hybrid natural fiber epoxy composites under systematic fiber treatment conditions remains insufficiently addressed in the literature. The present study investigates the mechanical and thermal characterization of jute and …
Published in International Journal of Composite Materials and Matrices · Vol. 12, Issue 1, 2026 · pp. 37–48 Read article
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Interfacial Engineering and Performance Optimization of Jute-Fiber-Reinforced Epoxy Laminates
Abstract: The increasing environmental concerns associated with synthetic fiber reinforced polymer composites have driven substantial research interest toward naturally derived, biodegradable fiber alternatives. This study presents a comprehensive mechanical and thermal characterization of jute fiber reinforced epoxy composites fabricated via hand lay-up followed by compression molding. Jute fibers were subjected to alkali treatment using 5 wt% sodium hydroxide (NaOH) solution for 4 hours at ambient temperature to enhance fiber–matrix interfacial bonding …
Published in International Journal of Polymer Science and Engineering · Vol. 12, Issue 1, 2026 · pp. 52–64 Read article
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Effect of Natural Cellulosic Fiber Surface Modifications on the Mechanical Feature Reinforced Polymer Composites
Abstract: The current era's remedies to global warming revolve around replacing fossil fuels with more ecologically friendly biodegradable materials in order to slow down the rate at which they are being depleted. Calotropis gigantea fruit bunch (CGFB) fiber is one kind of substitute material that this work envisage using in place of plastics in the construction of composite materials, as supported by the study literature. CGFB fiber was chosen for this …
Published in International Journal of Chemical Engineering and Processing · Vol. 11, Issue 1, 2025 Read article
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Mechanical Behavior of Calotropis Gigantea FruitBunch Fiber-Epoxy Composites
Abstract: Global warming solutions in the modern era are centered on substituting environmentally friendly biodegradable materials for fossil fuels to slow down the rate at which they are being depleted. The study literature supports the use of substitute materials for plastics in the creation of composite materials, and this work envisions the use of Calotropis gigantea fruit bunch fiber as one such substitute material. Since Calotropis gigantea fruit bunch fiber is …
Published in International Journal of Composite Materials and Matrices · Vol. 10, Issue 2, 2024 · pp. 45–58 Read article
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Studies on mass transfer in annular conduits with coaxially placed entry region vane assembly as turbulence promoter in homogeneous flow
Abstract: Studies on mass transfer in annular conduits with coaxially placed entry region vane assemblies as turbulence promoter in homogeneous flow were presented in this paper. The electrolytes used were equimolal potassium ferricyanide, potassium ferrocyanide and excess sodium hydroxide. Limiting current data had been obtained for the reduction of potassium ferricyanide ion. The mass transfer correlation is based on law of the wall similarity. The variables covered in this study are …
Published in International Journal of Chemical Engineering and Processing · Vol. 1, Issue 2, 2015 · pp. 7–18 Read article
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Influence of GGBFS on the Mechanical Properties of the Water Cured Fly Ash Aggregate-Based Geopolymer Concrete
Abstract: Abstract Conventional concrete consists of cement, sand as fine aggregate and gravel, limestone or granite in various sizes and shapes as coarse aggregate including with water. In the present work, the feasibility of using industrial inorganic polymeric residues wastes as a total (100%) replacement to the traditionally used normal conventional concrete materials is examined in the preparation of the geopolymer concrete (GPC). In this GPC, the cement is totally replaced …
Published in International Journal of Concrete Technology · Vol. 2, Issue 1, 2016 · pp. 54–64 Read article
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Durability Studies on Red mud and GGBS based Geopolymer Concrete
Abstract: The aim of the study is to evaluate the performance of geopolymer concrete and conventional concrete. In the present work, two Industrial by-products such as Red Mud and ground granulated blast furnace slag (GGBS) of 25:75 proportion is used for geopolymerisation. Red mud is a by-product from Alumina industry. GGBS is a by-product from iron industry. To develop a bond between binder and aggregates to form a geopolymer concrete feldspar …
Published in International Journal of Geological and Geotechnical Engineering · Vol. 5, Issue 1, 2019 · pp. 9–17 Read article
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Synthesis and Characterization of Magnetite-Pectin-Alginate Hybrid and Bionanocomposite
Abstract: It is a one pot synthesis of hybrid bionanocomposite comprising of inorganic magnetite with stabilizer biopolymer pectin and alginate in co-precipitation method using sodium hydroxide and ammonium hydroxide as precipitating agents. A lot of comparison and investigation has been done in particle size of nanocomposite by changing the stoichiometric ratio of both magnetite and biopolymer concentration and drying condition of composite. The nanocomposite has been characterized using infrared spectroscopy (FTIR), …
Published in International Journal of Applied Nanotechnology · Vol. 3, Issue 1, 2017 · pp. 18–22 Read article
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Evaluation of Corrosion kinetics of zirconium dioxide dispersion strengthened Aluminium metal matrix composites
Abstract: The corrosion kinetics of Aluminum 7068-Zirconium dioxide composites is a major aspect for assessing the capability of utilizing the materials for aviation segments. Aluminum 7068 matrix is a particular class of composite which is known for its high strength characteristics even in critical situations and is utilized as a part of aerospace, automobile and ordinance applications. However the investigations on impact of reinforcements, for instance zirconium dioxide on corrosion conduct …
Published in International Journal of Metallurgy and Alloys · Vol. 4, Issue 1, 2018 · pp. 9–23 Read article
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Fabrication and Study of Natural Plant Fiber Reinforced Polymer Composites
Abstract: Snake grass fiber (sansevieria trifasciata fiber, STF)-strengthened polypropylene (PP) based composites (30 wt% by fiber) was made by hot press technique. STFs were modified by ultraviolet (UV) rays and the composites they produced were evaluated. Optimized STFs were again modified with monomer using UV rays to progress the mechanical features of the composites. Monomer concentration and no. of UV rays were optimized in terms of grafting and mechanical features of …
Published in International Journal of Polymer Science and Engineering · Vol. 7, Issue 1, 2021 · pp. 11–22 Read article
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Sorption of Pb (II), Cd(II) and Zn(II) by synthesized nanocrystalline sodium potassium flurophlogopite (FGP)
Abstract: We have successfully synthesized nanocrystalline sodium potassium fluorophlogopite (FGP) crystals with controlled sizes from ≈ 25 nm to 100nm, using an organic tetrapropylammonium (TPA) hydroxide. We have been successfully synthesized material depends on the source of silicate and hydrothermal crystallization conditions. The synthesized materials were characterized by using different techniques such as X-ray diffraction, Energy Dispersive Analysis, Scanning Electron Microscope, Transmission Electron Microscopy and FTIR analysis. The use of sodium …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 2, 2023 · pp. 41–49 Read article