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19 articles for “thermogravimetric analysis”
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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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Preparation of a composite Materials from activated carbon and waste plastic for water Treatment
Abstract: Insoluble resins offer several advantages in preparation processes, the chemical, photochemical and thermal mechanical properties of composites are largely affected by matrix properties. The aim of our study was a double aspect, the synthesis of a polymer-based ion exchanger from waste polystyrene and the composite material valorization in water treatment. a series of experiments was made to prepare the sulfonated polystyrene ion exchange resin and the composite material based on …
Published in International Journal of Environmental Chemistry · Vol. 5, Issue 2, 2019 · pp. 38–48 Read article
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Characterization and Kinetic Study of Sugarcane Bagasse for the Production of Bio-oil Over Monodispersed Fe2 O3 and ZSM-5 Composite
Abstract: The shortage and price scramble of fossil fuels accompanied by vast CO2 emissions have triggered a worldwide search for alternative and sustainable resources. Wind, solar, geothermal, biomass, and water are the most commonly used alternative energy sources. The biomass residues are typically at low cost and readily availabile, and has been used as feedstocks for synthesis of renewable energy. To produced the bio-fuels from biomass residues, several reaction pathways categorized …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 9, Issue 2, 2023 · pp. 1–13 Read article
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Mechanical Studies and Thermal Kinetics of Isoniazid Crystals
Abstract: Single crystals of isoniazid were crystallized by slow solvent evaporation method. The crystal structure was confirmed using single crystal X-ray diffraction analysis. Micro hardness was estimated and work hardening coefficient and Newtonian resistance pressure of the crystal were determined. Kinetic analysis of the thermogravimetric data was carried out by using Coats-Redfern relation. Activation energy, frequency factor and order of reaction were also calculated. Arrhenius equation for isoniazid is k=0.43×105e–79103/RT mol–1s–1. …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 1, Issue 1, 2015 Read article
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Thermal Decomposition Kinetics of Mefenamic Acid Crystals
Abstract: Single crystals of mefenamic acid were crystallized by gel growth method for the first time in literature. Crystal structure was confirmed using single crystal X-ray diffraction analysis. Kinetic analysis was made from the isothermal thermogravimetric analysis/differential thermal analysis (TGA/DTA) data using Coats–Redfern (CR) relation. Thermodynamic parameters were also determined. Arrhenius equation for mefenamic acid is k = 0.28 × 109 e–116551/RT mol–1s–1. Keywords: kinetic analysis, mefenamic acid, thermal analysis
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 2, Issue 1, 2016 · pp. 21–24 Read article
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Synthesis, Crystal growth and Characterization of Lead acetate zinc (II)Sulphate Material
Abstract: Leadacetatezinc (II) Sulphate Crystal is synthesized by the addition of Leadacetate to Zinc sulphate in equimolar concentration (1:1ratio) to produce larger sized crystal but during the crystallization process a bulk of colourless precipitate was obtained and after filtration the crystals are formed in the filtrate after slow evaporation solution growth technique. Thus formed crystals from the filtrate is kept away and the precipitate formed during the crystallization process is characterized …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 9, Issue 1, 2023 · pp. 22–29 Read article
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Synthesis and Characterization of Poly(etherdiphenylene terephthalamide)-Metal Complexes in Heterogeneous Medium
Abstract: Condensation of terephthalic acid and 4,4ʹ-diaminodiphenyl ether resulted in aminoterminated oligomeric poly(etherdiphenylene terephthalamide) (PODTA) using phosphorylation technique. Schiff base complexes of this polyamide were synthesized with salicylaldehyde and 2-hydroxy-1-naphthaldehyde complexes of Co(II),Ni(II) and Cu(II). All the synthesized polyamide as well as Schiff’s base complexes were characterized by elemental analysis, IR spectroscopy and magnetic susceptibility measurements. Thermal stabilities of ligand and its various complexes were compared by thermogravimetric analysis. While, Co(II) …
Published in International Journal of Polymer Science and Engineering · Vol. 2, Issue 1, 2016 · pp. 13–19 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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Production and Evaluation of Composites Made from Waste Material and Recycled Poly(Ethylene Terephthalate)
Abstract: A significant ecological concern that third-world countries are currently facing is the economically viable use of lignocellulose waste. In addition to reducing the cost of the composite, cellulosic fiber composites created from industrial waste would enable the efficient use of a waste material that is presently disposed of or burned. Recycled poly (ethylene terephthalate) was used in this work as a major phase (matrix) and industrial waste material was used …
Published in International Journal of Energetic Materials · Vol. 11, Issue 1, 2025 · pp. 1–12 Read article
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Green Engineering of Wood-Plastic Composites: Utilizing Recycled Plastics for Environmental Sustainability
Abstract: This study explores the fabrication of wood-plastic composites (WPCs) using recycled polymers and natural fibers, aiming to create a renewable and durable alternative to traditional wood products. Utilizing agricultural and industrial waste as the raw materials, the research integrates various polymer blends with wood flour and other lignocellulosic fibers, enhancing mechanical and thermal properties. The innovative approach involves modifying the polymer matrix with eco-friendly additives to improve compatibility, adhesion, and …
Published in International Journal of Green Chemistry · Vol. 10, Issue 2, 2024 · pp. 8–16 Read article
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Production of Waste Animal Bone as a Heterogeneous Solid Base Catalyst for Transesterification of Jatropha Oil
Abstract: Heterogeneous catalyst plays a vital role in transesterification process, especially in view of cost and reusability. In this study, heterogeneous solid base catalyst was prepared by impregnating the waste animal bone with different weight percent (wt%) KOH solution followed by drying and calcination at 900 °C for 3 hr. Having screened the catalytic performance and basicity of animal bone loaded with different K-compounds, 12 wt% KOH loaded on animal bone …
Published in International Journal of Chemical Separation Technology · Vol. 5, Issue 1, 2019 · pp. 28–48 Read article
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Pyrolysis Characteristics and Isoconversional kinetics of kusum deoiled seedcake.
Abstract: The pyrolysis characteristics and kinetics of kusum de-oiled seed cake were conducted using a Thermo gravimetric analyzer. Thermogravimetric analysis of biomass was carried out at three different heating rates of 10, 20, 30, ̊ C/min from 28 ̊ C to 1000 ̊ C under N2 atmosphere. The results indicated that the biomass was decomposed in the temperature range of 270 ̊C to 520 ̊ C and further decreased when temperature …
Published in International Journal of Environmental Chemistry · Vol. 2, Issue 2, 2016 · pp. 9–17 Read article
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Production and Characterization of Biomass Briquette from Sawdust and Cow Dung Admixture for Domestic Cooking Applications in Northern Ethiopia
Abstract: This study explored the possibility of producing and characterize biomass briquettes from sawdust and caw dung admixture that could be used as a sustainable fuel sources of energy supply for domestic cooking applications. In this study, Potato starch used as a binder. The physical and composition properties of the sawdust and cow dung as well as the developed biomass Briquettes were determined using Thermogravimetric analysis. A portion of sawdust and …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 5, Issue 2, 2019 · pp. 49–57 Read article
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Effects of Compatibilizer and Paper Sludge Content on the Performances of Thermoplastic Polymer Composites
Abstract: One of the environmental issues affecting third-world countries is the economic use of lignocellulose waste, which is now being researched. Paper sludge (PS) composites will allow for the effective use of a waste material that is currently burned or buried, as well as the ability to lower the cost of the composite that is created. In this study, the mechanical and thermalcharacteristics of environmentally friendly composites constructed from PS-reinforced recycled …
Published in International Journal of Renewable Energy and its Commercialization · Vol. 8, Issue 2, 2022 · pp. 10–21 Read article
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Synthesis & Characterization of Fe3O4 Nanoparticles for Thermal Sensing Application
Abstract: n this work, Synthesis and characterization of magnetite (Fe3O4) nanoparticles by the co-precipitation method has been done. These nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared (FTIR), UV-Visible spectroscopy (UV) and Thermogravimetry analysis (TGA/DSC). SEM image show morphology and porosity of material. The nanoparticles show quasi-spherical morphology with mean size around 37 nm. The XRD and FTIR confirmed the functionalization of the Fe3O4 nanoparticles. …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 3, Issue 2, 2017 · pp. 10–19 Read article
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Thermal and structural properties of surface treated ragweed fiber reinforced biodegradable polylactic acid biocomposites
Abstract: Natural fiber-reinforced composites (NFRC) are becoming more popular as technological advance recognizes the need for eco-friendly materials. This work presents Giant ragweed (Ambrosia trifida) as a new composite reinforcement material into polylactic acid (PLA) matrix to form novel natural fiber-reinforced composites. Different types of retting techniques are utilized, and hydrogen peroxide retting is proven to provide the most optimized properties. The fibers are taken through subsequent extraction and grinding processes. …
Published in International Journal of Composite and Constituent Materials · Vol. 8, Issue 2, 2022 · pp. 13–31 Read article
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Thermogravimetic Study Of Chrysodine Dye Type Bridge Containing Bis (8-quinolinol)s Ligands and Their Coordination Polymers
Abstract: Our thermogravimetric analysis state that the degradation in chrysodine dye type bridge containing bis (8-quinolinol)s metal coordination polymers was initiated at almost the same temperature near about 25-500 C(T0). The remarkable difference is observed in the mode of thermal degradation of the parent ligand and its coordination polymer. The unchelated bis(8-quinolinol) ligand and coordination polymers begin to decompose almost at the same temperature but in the polymer chelates this decomposition …
Published in International Journal of Composite Materials and Matrices · Vol. 9, Issue 2, 2023 · pp. 32–40 Read article
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Study of Dynamic Mechanical and Thermal Properties of Poly(Ether Ether Ketone) Carbon Nanotubes
Abstract: The effect of polyetherimide (PEI) as a compatibilizing agent on the morphology, thermal, electrical and dynamic-mechanical properties of poly(ether ether ketone) (PEEK)/single-walled carbon nanotube (SWCNT) nanocomposites, has been investigated for different CNT loadings. After a pre-processing step based on ball milling and premixing under mechanical treatments in ethanol, the samples were prepared by melt extrusion. A more homogeneous distribution of the CNTs throughout the matrix is found for composites containing …
Published in International Journal of Polymer Science and Engineering · Vol. 3, Issue 1, 2017 · pp. 1–21 Read article
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Studies on the Kinetics of Thermal Decomposition of Copper Oxalate Mixed With Silver Oxalate
Abstract: The coprecipitates, Ag2Cu(C2O4)nH2O of varying composition [Ag = (1 and 2)%], have been synthesized and were characterized by means of IR, XRD, and SEM. The decomposition of the prepared oxalates was monitored by differential scanning calorimetry (DSC) and thermogravimetry (TG). The DSC studies reveal that the decompositions of the mixed oxalates were all complex exothermic processes with resemblance to the exothermic reaction of copper oxalate and ranges from 540 to …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 2, Issue 1, 2016 · pp. 1–11 Read article