Journal articles on the topic 'Thermogravimetric Analysis - Differential Thermal Analysis'

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1

Palaniappan, S., and B. H. Narayana. "Conducting polyaniline salts: Thermogravimetric and differential thermal analysis." Thermochimica Acta 237, no. 1 (1994): 91–97. http://dx.doi.org/10.1016/0040-6031(94)85187-5.

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2

Liu, Ying, Liutao Yang, Chunping Ma, and Yingzhe Zhang. "Thermal Behavior of Sweet Potato Starch by Non-Isothermal Thermogravimetric Analysis." Materials 12, no. 5 (2019): 699. http://dx.doi.org/10.3390/ma12050699.

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In this study, X-ray diffraction (XRD), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) methods were used to study the structure, the thermal degradation kinetics, and the thermogram of sweet potato starch, respectively. The thermal decomposition kinetics of sweet potato starch was examined within different heating rates in a nitrogen atmosphere. Different models of kinetic analysis were used to calculate the activation energies using the thermogravimetric data of the thermal degradation process. The activation energies got from Kissinger, Flynn–Wall–Ozawa, and Ša
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3

Hashimov, R. F., F. A. Mikailzade, S. V. Trukhanov, et al. "Structure and thermal analysis of Ba0.5La0.5MnO3 polycrystalline powder." International Journal of Modern Physics B 33, no. 22 (2019): 1950244. http://dx.doi.org/10.1142/s0217979219502448.

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The structure and thermal properties of Ba[Formula: see text]La[Formula: see text]MnO3 polycrystalline powder have been investigated using X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) techniques. The structural studies have shown that Ba[Formula: see text]La[Formula: see text]MnO3 compound crystallizes in perovskite structure with Pm-3m cubic symmetry group. The lattice parameters were obtained to be a = b = c = 3.9073 Å. Mass changes have been observed from ther
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4

Homa, M., N. Sobczak, K. Hodor, and S. Gezgin. "Simultaneous Differential Thermal Analysis and Thermogravimetric Analysis of Si-30B Alloy." Journal of Materials Engineering and Performance 29, no. 11 (2020): 7073–79. http://dx.doi.org/10.1007/s11665-020-05157-2.

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AbstractThis article focuses on the experimental determination of the transformation temperature of Si-30B alloy in the temperature range of 25-1820 °C in a flowing gas atmosphere (He, 99.9992%) carried out by simultaneous differential thermal analysis and thermogravimetric analysis (DTA–TG) using a graphite container. The DTA curve during heating showed the presence of two critical temperatures, i.e., T = 1380.7 °C and T = 1532.0 °C. The first one corresponds to the melting point of a eutectic system (Si + SiB6). The high-temperature interaction and reactivity between the alloy and the contai
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5

Guo, Yalou, Hui Zhang, and Yingshu Liu. "Desorption characteristics and kinetic parameters determination of molecular sieve by thermogravimetric analysis/differential thermogravimetric analysis technique." Adsorption Science & Technology 36, no. 7-8 (2018): 1389–404. http://dx.doi.org/10.1177/0263617418772665.

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The kinetics of the thermal desorption of CO2 adsorbed on zeolite 13X were obtained using a differential thermogravimetric analyser under two different carrier gas conditions. The varying heating rates were set as 8, 12, 16, and 20 K min−1, respectively. The desorption activation energy of the physisorption sites for this experiment evaluated by an integral method without prediction of the reaction order ranged from 12.15 to 14.12 kJ mol−1 (CO2 as the carrier gas) and 43.32 to 50.42 kJ mol−1 (Ar as the carrier gas), respectively. The desorption activation energy of the chemisorption sites rang
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6

Riga, Alan, Ricardo Collins, and Gregory Mlachak. "Oxidative behavior of polymers by thermogravimetric analysis, differential thermal analysis and pressure differential scanning calorimetry." Thermochimica Acta 324, no. 1-2 (1998): 135–49. http://dx.doi.org/10.1016/s0040-6031(98)00530-9.

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7

Markova, K., D. Minčev, D. Rustschev, and O. Atanasov. "Differential-thermal and thermogravimetric analysis of some gagates from Bulgaria." Journal of Thermal Analysis 34, no. 1 (1988): 65–69. http://dx.doi.org/10.1007/bf01913371.

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8

D.A., Nabiyev X.X.Turayev Umbarov Ibragim Amonovich A.T.Djalilov. "THERMAL ANALYSIS OF TaCoPc ORGANIC PIGMENT WHICH CONTAINS METALL." INTERNATIONAL BULLETIN OF ENGINEERING AND TECHNOLOGY 2, no. 12 (2022): 146–52. https://doi.org/10.5281/zenodo.7475778.

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This article has been investigated the thermal properties of an organic pigment which contain a metal. According to the results of thermogravimetric and differential thermal analysis, the rate of thermal decomposition of the organic pigment stored in the metal and its temperature dependence is given.
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9

Baluja, Shipra, Rahul Bhalodia, Ravi Gajera, Mehul Bhatt, and Kapil Bhesaniya. "Thermal analysis of some novel pyrimidine derivatives." Revista Colombiana de Ciencias Químico-Farmacéuticas 48, no. 2 (2019): 436–54. http://dx.doi.org/10.15446/rcciquifa.v48n2.82722.

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Some new pyrimidine derivatives have been synthesized and their decomposition characteristics have been studied by thermogravimetric and differential scanning calorimetric analysis. The thermal stability and some kinetics parameters of decomposition were evaluated from thermograms. It is observed that depending upon the structure, substitutions, thermal stability and decomposition kinetics varies in different compounds.
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10

Corrêa, Rodrigo Studart, Renata Esteves Ribeiro, Marina Pereira Borges, Ettore Ferrari Júnior, and Juliano de Andrade Gomes. "Discrimination Efficiency of Thermogravimetry and Differential Scanning Calorimetry in Soil Forensics." Forensic Sciences 4, no. 1 (2024): 96–109. http://dx.doi.org/10.3390/forensicsci4010007.

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Forensic soil analysis is crucial in criminal investigations, necessitating robust analytical methodologies for an accurate discrimination of soil types and origins. This study explored the discrimination efficiency of thermogravimetric and differential scanning calorimetric analyses of Inceptisol, reddish Oxisol, and yellowish Oxisol soils from Brazil’s Cerrado region. Ninety air-dried soil samples collected at various locations underwent thermal analysis, focusing on mass loss of gibbsite, goethite, and kaolinite at specific temperatures. The log-transformed data were submitted to principal
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11

de, Moura, Jivaldo Matos, and Farias de. "A thermal degradation study of Y and La methanesulfonates." Journal of the Serbian Chemical Society 71, no. 8-9 (2006): 905–15. http://dx.doi.org/10.2298/jsc0609905d.

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The synthesis, characterization and thermal degradation of yttrium and lanthanum methanesulfonates is reported. The prepared salts were characterized by elemental analysis and infrared spectroscopy. The thermal degradation study was performed using thermogravimetry (TG), differential thermal analysis (DTA) and differential scanning calorimetry (DSC).Using the thermogravimetric data, a kinetic study of the dehydration ofY and Lamethanesulfonates was performed employing the Coats-Redfern and Zsak?methods. It was verified that under heating, yttrium and lanthanum methanesulfonates undergo three m
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12

Denardin, Elton L. G., Dimitrios Samios, Paulo R. Janissek, and Gabriel P. de Souza. "Thermal Degradation of Aged Chloroprene Rubber Studied by Thermogravimetric Analysis." Rubber Chemistry and Technology 74, no. 4 (2001): 622–29. http://dx.doi.org/10.5254/1.3544962.

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Abstract The thermal degradation of original and aged chloroprene rubber was studied using thermogravimetric analysis. Thermogravimetric analysis (TGA) and differential thermogravimetric analysis (DTG) techniques were used to detect the mass loss during the temperature elevation. By the analysis of the mass loss curves through usual kinetic methods, it was possible to evaluate the different degradation processes present in the overall degradation. The activation energies of the degradation processes were obtained using the dynamic, non-isothermal Kissinger and Osawa methods and the half-width
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13

VALEIKA, Virgilijus. "Low-pickle Processing of Leather: Assessment of Leather Tanning Quality by Methods of Thermal Analysis." Materials Science 26, no. 3 (2020): 333–36. http://dx.doi.org/10.5755/j01.ms.26.3.22509.

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Pelt obtained by deliming with peracetic acid can be chromed after additional treatment with sodium chloride or oxalic acid solution, or directly tanned using synthetic tannins. The results of differential scanning calorimetry and thermogravimetric analyses have suggested that any tanning increases thermal stability of leather collagen. The produced chrome-free leather, despite its high tensile strength, is not characterized by high shrinkage temperature what indicates insufficient thermal stability of such leather. This fact contradicts the results of differential scanning calorimetry and the
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14

Manley, T. R. "Thermal Analysis of Rubber and Plastics." Progress in Rubber and Plastics Technology 5, no. 4 (1989): 253–88. https://doi.org/10.1177/147776068900500401.

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Thermal methods of analysis have a very long history but were not applied to polymers till after the second world war. Since then, application of Differential Thermal Analysis (DTA), Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC) have grown so rapidly that no well founded polymer laboratory is without at least one of them. Studies in the degradation of polymers are greatly facilitated by TA methods, which may readily be used in conjunction with other smoke measurements to provide especially powerful analytical tools. The growth of engineering applications, especia
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15

Golovina, Ekaterina Valerievna, and Andrey Vladimirovich Kalach. "Investigation of thermally expanding flame retardants by thermal analysis for use in the Arctic region." Technology of technosphere safety, no. 99 (2023): 8–16. http://dx.doi.org/10.25257/tts.2023.1.99.8-16.

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Introduction. The article presents the results of the study of flame-retardant swelling materials based on silicone binder and epoxy resin-based methods of synchronous thermal analysis. A comparative analysis of the results of thermogravimetric, differential-thermogravimetric analysis and differential-scanning calorimetry was carried out. The relevance of the use of fire protection means at oil and gas industry facilities located in the Arctic regions is substantiated. The thermoanalytical characteristics of the analyzed flame retardants have been studied, allowing to assess the heat resistanc
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16

Liang, Huan, Jean-Michel Hardy, Denis Rodrigue, and Josée Brisson. "EPDM RECYCLED RUBBER POWDER CHARACTERIZATION: THERMAL AND THERMOGRAVIMETRIC ANALYSIS." Rubber Chemistry and Technology 87, no. 3 (2014): 538–56. http://dx.doi.org/10.5254/rct.14.87988.

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ABSTRACT Investigations on ethylene–propylene–diene rubber (EPDM) with varying cross-link densities and carbon black contents, as well as commercial EPDM waste ground rubber (WGR), have been performed to improve characterization. The aim is to provide additional quality-control methods in the field of rubber recycling, as WGR is transformed and reused in the form of rubber mats mainly for playground, agricultural, sport, and automobile applications. Inductively coupled plasma optical emission spectrometry, atomic absorption spectrometry, and elemental (CHNS) analyses were used to determine the
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17

Yao, Xiang, Shuai Zhang, and Bo Sun. "Thermal Analysis of Coal-Bearing Strata Kaolinite/potassium Acetate Intercalation Complex." Advanced Materials Research 538-541 (June 2012): 2077–81. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.2077.

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The thermal decomposition of coal-bearing strata kaolinite-potassium acetate(CK/KAc) intercalation complex has been studied using X-ray diffraction (XRD), thermogravimetry and differential thermogravimetric (TG-DTG) and infrared emission spectroscopy (IES). The XRD results show that the KAc has been successfully intercalated into coal-bearing strata kaolinite with an obvious basal distance increase of the first basal peak. The TG results show that the thermal decomposition of the intercalation complex occurs in four main steps (a) the loss of adsorbed water (b) the loss of coordination water (
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18

Olejnik, Olga, Anna Masek, and Adam Kiersnowski. "Thermal Analysis of Aliphatic Polyester Blends with Natural Antioxidants." Polymers 12, no. 1 (2020): 74. http://dx.doi.org/10.3390/polym12010074.

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The aim of this research was to enhance thermal stability of aliphatic polyester blends via incorporation of selected natural antioxidants of plant origin. Thermal methods of analysis, including differential scanning calorimetry (DSC) and thermogravimetry (TGA), are significant tools for estimating the stabilization effect of polyphenols in a polymer matrix. Thermal stability was determined by analyzing thermogravimetric curves. Polymers with selected antioxidants degraded more slowly with rising temperature in comparison to reference samples without additives. This property was also confirmed
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19

Zhu, Fang-Long, Qian-Qian Feng, Qun Xin, and Yu Zhou. "Thermal degradation process of polysulfone aramid fiber." Thermal Science 18, no. 5 (2014): 1637–41. http://dx.doi.org/10.2298/tsci1405637z.

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Polysulfone aramid fiber is one kind of high temperature fibers. In the paper, thermal degradation behavior and kinetics of polysulfone aramid fiber were investigated by thermogravimetric analysis and differential thermogravimetric at different heating rates under nitrogen and air, respectively. The experimental results show that its initial degradation temperature is 375?C in nitrogen and 410?C in air at heating rate of 10 K/min. When temperature went to 800?C, the fiber loses all mass in air. The mass losses in the stage showed that degradation of polysulfone aramid occurs in two-step proces
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20

Kos, Ivan, Tin Weitner, Sandra Flinčec Grgac, and Jasna Jablan. "Thermal analysis of N-carbamoyl benzotriazole derivatives." Acta Pharmaceutica 65, no. 2 (2015): 207–13. http://dx.doi.org/10.1515/acph-2015-0017.

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Abstract Thermal properties of N-carbamoyl benzotriazole derivatives and N,N’,N’’-tribenzyloxyisocyanuric acid were investigated using thermogravimetric analysis and differential scanning calorimetry. The results revealed a difference between structural analogs of N-carbamoyl benzotriazole derivatives. They seem to be in agreement with the previously proposed formation of N,N’,N’’-tribenzyloxyisocyanuric acid from 1-(N-benzyloxycarbamoyl) benzotriazole, via an intermediary N-benzyloxyisocyanate acid, during heating. Substantially different thermal properties were observed for structural analog
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21

Zimmermann, G. M., D. R. S. Lean, and M. N. Charlton. "Differential Thermal and Thermogravimetric Analysis of Sediment-Forming Materials from Lake Ontario." Canadian Journal of Fisheries and Aquatic Sciences 44, no. 12 (1987): 2216–24. http://dx.doi.org/10.1139/f87-272.

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Differential thermal analyses (DTA) and thermogravimetric analyses (TGA) of seston, sediments, and sediment trap material from Lake Ontario were generally similar to each other but were strikingly different from those of the green alga Chlorella pyrenoidosa. Coinciding with the principal weight loss of carbohydrate material, the main exothermic reaction for all lake samples began at 200–250 °C and peaked at 345–355 °C. Trap samples varied over the season and samples from the deep traps (178 m) had exotherms which were broader with less energy content than from traps near the bottom of the meta
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22

Ju, C., Q. Li, Z. L. Wang, Q. H. Song, Z. P. Sun, and Y. F. Zhang. "Comparison of NiCrAl-diatomite, nickel graphite and Ag-Cu alloy thermal spraying." Digest Journal of Nanomaterials and Biostructures 16, no. 3 (2021): 777–92. http://dx.doi.org/10.15251/djnb.2021.163.777.

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NiCrAl-diatomite coatings, nickel graphite coatings and Ag-Cu alloy coatings prepared by thermal spraying were used to study the reaction mechanism. The compositions of NiCrAl-diatomite, nickel graphite and Ag-Cu alloy powders and coatings were investigated by X-ray diffraction. The powders were analyzed by thermogravimetric differential thermal analysis and scanning electron microscopy. The powders and coatings were compared and found to have the same phase by X-ray diffraction. Thermogravimetric differential thermal analysis of the powders showed that NiCrAl-diatomite was almost stable below
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23

Ondruška, Michal, Marián Drienovský, Roman Čička, Milan Marônek, and Antonín Náplava. "OPTIMIZING THE WELDING OF PLASTICS WITH THE USE OF DIFFERENTIAL SCANNING CALORIMETRY AND THERMOGRAVIMETRIC ANALYSIS." Acta Polytechnica 54, no. 3 (2014): 221–24. http://dx.doi.org/10.14311/ap.2014.54.0221.

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Plastics have different thermal stability, depending on the structure of the polymer chains. It is therefore very important to know their thermal properties, which influence the temperature regime of processing equipment. This paper presents examples of differential scanning analysis (DSC) and thermogravimetry analysis (TG) of selected plastics in an Ar protective atmosphere and also in an oxidative atmosphere of static air. These analyses can be used for proposing a welding temperature regime.
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Ayas, Gizem, and Hakan Öztop. "Thermal analysis of different Refuse Derived Fuels (RDFs) samples." Thermal Science, no. 00 (2021): 249. http://dx.doi.org/10.2298/tsci201010249a.

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As a result of the activities carried out by people to maintain their daily lives in different places such as homes, hospitals, hotels or workplaces, waste consisting of furniture, paint, batteries, food waste, sachets, bottles, fabrics, and fibers with the heterogeneous structure is called Municipal Solid Waste (MSW). Secondary fuels with higher heating value, which are generated by recycling of non-recyclable and reusable wastes in municipal solid wastes, are called as Refuse Derived Fuel (RDF). In this study, Refuse Derived Fuel1 (RDF1 : taken in December, winter season) and Refuse Derived
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25

Odochian, Lucia, Magdelena Pantea, Irina Calugareanu, Dana Ionescu, and Olga Vicol. "On the nature of crystallization water using thermal analysis. - The application to some hydrates with different cations." Journal of the Serbian Chemical Society 64, no. 12 (1999): 737–44. http://dx.doi.org/10.2298/jsc9912737o.

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The nature of the crystallization water in some hydrates with different cations, namely: MnSO4?H2O; FeSO4?7H2O; CoSO4?7H2O; NiSO4?7H2O, has been studied by the application of the following non-isothermal techniques: thermogravimetry (TG), derivative thermogravimetry (DTG), and differential thermal analysis (DTA). Analysis of the characteristic thermogravimetric data (Tm, W ) and of the kinetic parameters (n, Ea) calculated from DTG and DTA data - with CuSO4?5H2O as a reference - demonstrated the existence of crystallization and anionwater in the studiedhydrates. The activation energy of the pr
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26

Milanese, Andressa Cecília, Kelly Cristina Coelho de Carvalho Benini, Maria Odila Hilário Cioffi, and Herman Jacobus Cornelis Voorwald. "Thermal Analysis of Sisal/Epoxy Composite Processed by RTM." Applied Mechanics and Materials 719-720 (January 2015): 50–54. http://dx.doi.org/10.4028/www.scientific.net/amm.719-720.50.

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Nowadays, polymeric composites reinforced with natural fibers are being considered in the civil engineering area. The use of polymeric composites to reinforce degraded timber structures can improve its behavior. Fibers with larger structural applications are glass and carbon but the use of natural fibers is an economical alternative and posses many advantages such as biodegradability, low cost and is derived from natural and renewable sources. Epoxy composite reinforced with sisal fabric was processed by resin transfer molding (RTM) at room temperature and this work studies thermal behavior an
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27

Gikarakis, Theodoros, Ioannis Pappas, Pothiti Arvanitaki, et al. "Thermal Stability and Kinetics of Thermal Decomposition of Statistical Copolymers of N-Vinylpyrrolidone and Alkyl Methacrylates Synthesized via RAFT Polymerization." Journal of Chemistry 2021 (March 19, 2021): 1–12. http://dx.doi.org/10.1155/2021/6633052.

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The thermal stability and the kinetics of thermal decomposition of statistical copolymers of N-vinylpyrrolidone (NVP) with the alkyl methacrylates, hexyl methacrylate (HMA) and stearyl methacrylate (SMA), were studied by Thermogravimetric Analysis (TGA) and Differential Thermogravimetry (DTG). Statistical copolymers of different compositions were studied, and their thermal decomposition behavior was compared to the corresponding homopolymers. The activation energies of the thermal decomposition were calculated using the Ozawa-Flynn-Wall, the Kissinger, and the Kissinger-Akahira-Sunose methodol
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28

Fahad, Tarek Ali, and Shaker A. N. AL-Jadaan. "Synthesis, Characterization and Thermal studies of Novel Organomercury Driven from Sulfa Drugs Part 1." JOURNAL OF ADVANCES IN CHEMISTRY 7, no. 2 (2011): 1338–47. http://dx.doi.org/10.24297/jac.v7i2.2363.

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Two new heterocyclic Organmercury compounds were prepared from the reaction of Sulfamethaxazole and Sulfadiazine with 4-acetaminophenol as a coupler and separated as solids with characteristic colors. these compounds were characterized by F.T.IR-spectroscopy 1H-NMR , Micro-elemental Analysis and UV-Vis spectroscopic techniques . The work involves a study of acid – base properties compounds at different pH values, the ionization and protonation constants were calculated. The thermal behavior of these two compounds were investigated on the basis of thermogravimetric (TGA) and differential thermo
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29

Kalashnikov, G. V., E. V. Litvinov, E. S. Bunin, and S. V. Makeev. "Substantiation for variables technological modes convective and microwave drying of apples." IOP Conference Series: Earth and Environmental Science 1052, no. 1 (2022): 012147. http://dx.doi.org/10.1088/1755-1315/1052/1/012147.

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Abstract The processes of dehydration and transformation of dry matter of apples are experimentally studied on the basis of differential thermal and thermogravimetric analysis. The kinetics of the process of apple thermolysis was investigated on the basis of differential thermal and thermogravimetric analysis. The thermoanalytical curves obtained by the method of non-isothermal kinetics were based on the experimental dependences of the change in the mass of the TGA sample, the rate of temperature change DTA, and the rate of change in the DTG mass. Differential thermal analysis was used to dete
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30

Bamzai, K. K., Nidhi Kachroo, Vishal Singh, and Seema Verma. "Synthesis, Characterization, and Thermal Decomposition of Pure and Dysprosium Doped Yttrium Phosphate System." Journal of Materials 2013 (April 18, 2013): 1–8. http://dx.doi.org/10.1155/2013/359514.

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Yttrium phosphate and dysprosium doped yttrium phosphate were synthesized from aqueous solutions using rare earth chloride, phosphoric acid, and traces of ammonium hydroxide. The synthesized material was then characterized for their structural investigations using powder X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM) supplemented with energy dispersive X-ray analysis (EDAX). The spectroscopic investigations were carried out using Fourier transform infrared (FTIR) spectroscopy. The thermal stability was studied using differential thermogravimetric analysis (DTA), thermo
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31

Qu, Hong Qiang, Wei Hong Wu, Chun Zheng Wang, Xin Liu, and Chun Meng Yin. "Thermal Decomposition of Wood Treated with Silicates by Thermogravimetry–Mass Spectrometry." Advanced Materials Research 239-242 (May 2011): 459–62. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.459.

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The thermal decomposition of wood treated with a series of silicates was characterized by thermogravimetric (TG) analysis, differential thermogravimetry (DTG), and thermogravimetry–mass spectrometry (TG–MS) analysis. The addition of these chemicals caused a decrease in the decomposition temperature, a reduction in weight loss, and an increase in the amount of char produced. The results showed that ion current intensity and ion peak area of the typical representatives of incombustible ion such as m/z = 18 and 44 MS signals were increased by the flame retardants but the inflammable ion such as m
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32

Lavoie, Fernando Luiz, Clever Aparecido Valentin, Marcelo Kobelnik, Jefferson Lins da Silva, and Maria de Lurdes Lopes. "HDPE Geomembranes for Environmental Protection: Two Case Studies." Sustainability 12, no. 20 (2020): 8682. http://dx.doi.org/10.3390/su12208682.

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High-density polyethylene (HDPE) geomembranes have been used for different applications in engineering including sanitation, such as landfills and waste liquid ponds. For these applications, the material can be exposed to aging mechanisms as thermal and chemical degradation, even to UV radiation and biological contact, which can degrade the geomembrane and decrease the material’s durability. This paper aims to present an experimental evaluation of two exhumed HDPE geomembranes, the first was used for 2.75 years in a sewage treatment aeration pond (LTE sample) and another was used for 5.17 year
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33

Asran, Aml M., Ahmed A. M. Ahmed, and Mona A. Mohamed Mohamed. "Kinetics and Thermal Decomposition Studies of Oxomemazine by Isoconversional Protocols." Oriental Journal Of Chemistry 38, no. 3 (2022): 632–37. http://dx.doi.org/10.13005/ojc/380312.

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Thermogravimetry was used to investigate the thermal decomposition of oxomemazine. Oxomemazine has three distinct degradation processes during non-isothermal decomposition. The Arrhenius equation, Coats-Redfern (CR), Horowitz-Metzger (HM), and Flynn-Wall-Ozawa (F-W-O) equations were used in this research to perform kinetic analysis of the first decomposition stage. Oxomemazine thermal stability is very important when it comes to how it can be stored, quality control, and how long it can be used. Using thermal analysis, scientists have been able to learn more about how drug compounds are stable
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34

Zhou, Wenhan, Xinyu Li, Fanglan Yao, et al. "Chip-Based MEMS Platform for Thermogravimetric/Differential Thermal Analysis (TG/DTA) Joint Characterization of Materials." Micromachines 13, no. 3 (2022): 445. http://dx.doi.org/10.3390/mi13030445.

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Combined use of thermal analysis techniques can realize complementarity of different characterization methods. Comprehensive thermal analysis with both thermogravimetric analysis and differential thermal analysis (TG/DTA) can measure not only mass change of a sample but also its temperature change during programmed heating-induced reaction or phase transition processes, thereby obtaining multiaspect thermal information of the material such as dehydration, structural decomposition, phase change and thermal stability. This study proposes and develops a MEMS chip-based TG/DTA microsystem that int
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35

Mittal, Varun, and Shishir Sinha. "Effect of chemical treatment on thermal properties of bagasse fiber-reinforced epoxy composite." Science and Engineering of Composite Materials 24, no. 2 (2017): 237–43. http://dx.doi.org/10.1515/secm-2014-0434.

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AbstractThe present paper deals with a study of the thermal properties of bagasse fiber (BF)-reinforced epoxy composites. BFs are subjected to untreated and chemical treatments with 1% sodium hydroxide followed by 1% acrylic acid at ambient temperature before the composites are made. The thermal stability of the components was studied by thermogravimetric analysis and differential scanning calorimetry, as well as by differential thermal gravimetric analysis. Thermal analysis results of untreated BF-reinforced epoxy composite were compared with treated BF-reinforced epoxy composite. The chemica
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36

Asaletha, R., M. G. Kumaran, and Sabu Thomas. "Thermal behaviour of natural rubber/polystyrene blends: thermogravimetric and differential scanning calorimetric analysis." Polymer Degradation and Stability 61, no. 3 (1998): 431–39. http://dx.doi.org/10.1016/s0141-3910(97)00229-2.

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37

Zayed, M. A., and F. A. Nour El-Dien. "Structure identification of substituted phenol redox products by: thermogravimetric and differential thermal analysis." Thermochimica Acta 113 (March 1987): 117–23. http://dx.doi.org/10.1016/0040-6031(87)88314-4.

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38

Zhang, Wei Jun, and Liang Jun Cai. "Comparative Analysis of Excess Sludge and Digested Sludge Pyrolysis Characteristics." Applied Mechanics and Materials 217-219 (November 2012): 817–20. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.817.

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Thermal analysis tests of residual sludge and digested sludge were performed on a thermogravimetric-differential thermal (TG-DTA) integrated thermal analysis instrument at the same heating rate. By doing this, the purpose is to understand the sludge pyrolytic law, to determine the optimal drying temperature for retaining the most calorific value of sludge, and to provide the basis to the sludge thermal drying treatment. The results show that the loss of organic matter in the digested sludge and excess sludge is smaller at the drying temperature of not higher than 250°C, and the optimal drying
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Lu, Diankun, Yunlong Bai, Wei Wang, et al. "Thermal Decomposition Process Analysis of Jarosite Residue." Metals 13, no. 2 (2023): 261. http://dx.doi.org/10.3390/met13020261.

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In this work, a mineralogical study and thermal decomposition analysis of jarosite residue sample from a zinc plant were carried out. The mineralogical analysis showed that the jarosite residue is mainly composed of four components, including jarosites, sulfates–hydroxides, sulfides and spinel. The distribution of relevant metallic elements in these components was characterized using a sequential extraction process. The X-ray diffraction results showed that AFe3(OH)6(SO4)2 and ZnFe2O4 are the main components of the jarosite residue sample. The thermal decomposition mechanisms of ammoniojarosit
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Ju, C., Q. Li, Z. L. Wang, et al. "Reaction mechanism comparison of AlSi-polyester and aluminum bronze/polyester plasma spraying." Digest Journal of Nanomaterials and Biostructures 16, no. 4 (2021): 1411–25. http://dx.doi.org/10.15251/djnb.2021.164.1411.

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AlSi-polyester seal coatings and aluminum bronze/polyester seal coatings prepared by plasma spraying were used to study their reaction mechanism. The composition of AlSi-polylester and aluminum bronze/polyester powders and coatings were investigated by X-ray diffraction. The powders were analyzed by thermogravimetric differential thermal analysis and scanning electron microscopy. Comparing the powder with the coating, it is found that they have the same phase by X-ray diffraction. Thermogravimetric differential thermal analysis of the powders show that the service temperature should not exceed
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Ahmad Yahaya, Ahmad Naim, Md Sohrab Hossain, and Robert Edyvean. "Thermal degradation and morphological changes of oil palm empty fruit bunch vermicompost." BioResources 12, no. 4 (2017): 8886–900. http://dx.doi.org/10.15376/biores.12.4.8886-8900.

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Vermicompost produced from oil palm empty fruit bunch (EFB) was analysed to examine its thermal degradation and morphological appearance. The thermal degradation of vermicompost produced from untreated EFB and EFB treated with oyster mushrooms was characterised via thermogravimetric analysis (TGA) and differential thermogravimetric analysis (DTGA). It was observed that vermicomposting accelerated the thermal degradation of EFB and minimized the lignin content, but reduced lignin degradation of raw EFB. However, the thermal degradation of lignin increased in treated EFB vermicompost. The struct
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42

Locatelli, José Roberto, Adriano Buzutti De Siqueira, Cláudio Teodoro De Carvalho, and Massao Ionashiro. "Thermal decomposition of solid state compounds of lanthanide and yttrium benzoates in CO2 atmosphere." Eclética Química Journal 33, no. 1 (2018): 43. http://dx.doi.org/10.26850/1678-4618eqj.v33.1.2008.p43-48.

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Solid-state Ln-Bz compounds, where Ln stands for trivalent lanthanides and Bz is benzoate have been synthesized. Simultaneous thermogravimetric and differential thermal analysis in a CO2 atmosphere were used to study the thermal decomposition of these compounds
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43

Locatelli, J. R., A. B. Siqueira, C. T. Carvalho, and M. Ionashiro. "Thermal decomposition of solid state compounds of lanthanide and yttrium benzoates in CO2 atmosphere." Eclética Química 33, no. 1 (2008): 43–48. http://dx.doi.org/10.1590/s0100-46702008000100006.

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Solid-state Ln-Bz compounds, where Ln stands for trivalent lanthanides and Bz is benzoate have been synthesized. Simultaneous thermogravimetric and differential thermal analysis in a CO2 atmosphere were used to study the thermal decomposition of these compounds.
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Bezzaponnaya, Oksana Vladimirovna. "Determination of the auto-ignition temperature of substances and materials by the method of synchronous thermal analysis." Technology of technosphere safety 104 (2024): 177–87. https://doi.org/10.25257/tts.2024.2.104.177-187.

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Introduction. The article presents the results of a study of materials of various chemical nature (pine wood, high-density polyethylene, polyvinyl chloride) by the method of synchronous thermal analysis. The relevance of the application of a high-precision and informative method of synchronous thermal analysis for determining the indicators of fire hazard of solid substances and materials is substantiated. The methodology for determining the self-ignition temperature by thermal analysis methods is considered. Research task. The objective of the study was to improve the methods for determining
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Jia, Guohai. "Combustion Characteristics and Kinetic Analysis of Biomass Pellet Fuel Using Thermogravimetric Analysis." Processes 9, no. 5 (2021): 868. http://dx.doi.org/10.3390/pr9050868.

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Biomass pellet fuel is one of the development directions of renewable energy. The purpose of the article is to study the combustion characteristics of five kinds of biomass pellet fuel that can be used as biomass fuel and analyze their combustion kinetics. The thermogravimetric method (TG method) was used to analyze the combustion characteristics of five kinds of biomass pellet fuel and to calculate the index S of comprehensive combustion characteristic. The Arrhenius equation and the Coats–Redfern method were used to analyze the combustion kinetics of five kinds of biomass pellet fuel. The ac
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Alekperov, A. S., S. H. Jabarov, M. N. Mirzayev, et al. "Effect of gamma irradiation on microstructure of the layered Ge 0.995Nd0.005S." Modern Physics Letters B 33, no. 09 (2019): 1950104. http://dx.doi.org/10.1142/s0217984919501045.

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X-ray analysis of layered [Formula: see text] crystal has been investigated before and after gamma irradiation. Single crystal [Formula: see text] was irradiated with a [Formula: see text] gamma source which had an energy of 1.33 MeV. The dose rate was [Formula: see text] and the absorption dose was from 1 kGy up to 30 kGy. The thermogravimetric analysis, differential scanning calorimetric, differential thermogravimetric and differential thermal analysis were performed on the samples. The thermodynamic analysis was evaluated for the thermally stable temperature range for unirradiated and irrad
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Qu, Hong Qiang, Wei Hong Wu, Lei Liu, and Jian Zhong Xu. "Thermal Properties and Flame Retardancy of Wood Treated with a Series of Stannates." Advanced Materials Research 150-151 (October 2010): 475–79. http://dx.doi.org/10.4028/www.scientific.net/amr.150-151.475.

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A flame retardant wood was prepared using a series of insoluble stannates through the double bath technique. The flame retardancy of the wood samples was studied with the LOI method. The relationships between the flame-retardant performance and the thermal property of wood were studied by the thermogravimetric analysis (TGA), differential thermogravimetry (DTG), differential thermal analysis (DTA) and scanning electron microscopy (SEM) methods. The results show that the insoluble stannates, which were precipitated into the wood by the double bath technique, can obviously improve the flame reta
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Łyszczek, Renata, Liliana Mazur, Agnieszka Ostasz, Agata Bartyzel, and Halina Głuchowska. "Lanthanide metal–organic frameworks: Structural, thermal and sorption properties." Adsorption Science & Technology 35, no. 7-8 (2017): 677–83. http://dx.doi.org/10.1177/0263617417704310.

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Two coordination polymers of erbium(III) and neodymium(III) ions with 1,3,5-benzenetricarboxylic acid were synthesized under the solvothermal conditions from the dimethylformamide solution. They were characterized by the attenuated total reflectance Fourier transform spectroscopy (ATR-FTIR), thermogravimetry and differential scanning calorimetry (TG-DSC), thermogravimetric analysis coupled with Fourier transform infrared spectroscopy (TG-FTIR) and X-ray diffractions methods. The single-crystal X-ray analysis confirmed formation of three-dimensional framework of Er(III) 1,3,5-benzenetricarboxyl
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Ke, Wu, Wang Rumin, and Zeng Jinfang. "Curing Kinetics of Hybrid Networks Composed of Benzoxazine and Multifunctional Novolac Epoxy." International Journal of Polymer Science 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/629403.

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A novel hybrid network composed of benzoxazines (BZ) and novolac epoxy resin (F-51) was prepared successfully. Thermal properties, curing kinetics, and decomposition process were studied using isothermal differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) in this paper. The reactive mechanism of F-51/BZ mixture system is different from the BZ homopolymers at low temperatures; two resin systems follow the autocatalytic model mainly at high temperatures. Thermogravimetric analysis indicates that F-51 can have no significant effect on thermal degradation temperatures and
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Ebissa, Dawit Tessema, Tamrat Tesfaye, and Delele Worku Ayele. "Characterization of Thermal Properties of Highland Bamboo Fibers." International Journal of Polymer Science 2022 (November 10, 2022): 1–12. http://dx.doi.org/10.1155/2022/8294952.

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Characterization of thermal properties of different ages highland bamboo fiber attributes extracted chemically and mechanically is the focus of this study. Samples of length 25–30 cm were harvested at various ages from the middle of the stem, which was then soaked in different NaOH weight-by-volume concentrations and soaked in water for different days. Using a rolling machine that has three rollers, the fiber is mechanically extracted. The sample was subjected to different analyses for each corresponding age (1, 2, and 3 years) and NaOH concentration (untreated, 1%, 2%, and 3%) levels using th
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