The thermal degradation of the CS spheres and its maximum decomposition temperature was studied using the TGA and the derivative of the thermogravimetric analysis (DTGA) technique. The technique was performed with a TA Instruments TGAQ50 system. A nitrogen atmosphere was used. The heating rate used was 20 °C/min, and the temperature ranges were brought from room temperature to 550 °C.
Q50 tga system
Manufactured by TA Instruments
Sourced in United States
The Q50 TGA system is a thermogravimetric analyzer that precisely measures changes in the weight of a sample as a function of temperature or time in a controlled atmosphere. It provides accurate data on thermal stability, composition, and decomposition characteristics of materials.
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Lab products found in correlation
Inca detector, by Oxford Instruments (2 mentions)
X pert pro system, by Malvern Panalytical (2 mentions)
Dsc q100, by TA Instruments (1 mentions)
5848 microtester, by Instron (1 mentions)
Nicolet 6700 ft ir spectrometer, by Thermo Fisher Scientific (1 mentions)
Asap 2020, by Micromeritics (1 mentions)
Xrd 7000, by Shimadzu (1 mentions)
Q20 dsc system, by TA Instruments (1 mentions)
12 protocols using q50 tga system
1
Thermal Degradation of CS Spheres
2
Preparation and Characterization of Thermomechanical Epoxy Resins
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TABLE 6 Thermomechanical properties of Epoxy resins Ratio Epoxy group/H of amine = 1 E′ Tα Tgb (GPa) TD5% TD30% Bisepoxy Diamine (° C.)a (° C.) 25° C.b (° C.) (° C.) [Figure (not displayed)]
[Figure (not displayed)]
112 126 1.1 312 337 aobtained from DMA bobtained from DSC
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Example 6
General Procedure
Bisepoxide and diamine were mixed together in ethanol. After evaporation of the solvent the mixture is poured into a matrix and warmed at 80° C. for 4 h.
DMA RSA 3 (TA instrument). The sample temperature was modulated from −80° C. to 220° C., depending on the sample at a heating rate of 5° C./min. The measurements were performed in a 3-point bending mode at a frequency of 1 Hz, an initial static force varying between 0.1 and 0.5 N and a strain sweep of 0.1%.
Differential Scanning Calorimetry (DSC) measurements were performed on DSC Q100 (TA Instruments). The sample was heated from −70° C. to 200° C. at a rate of 10° C. min−1. Consecutive cooling and second heating run were also performed at 10° C. min−1. The glass transition temperatures (Tg) were calculated from the second heating run.
Thermogravimetric analyses (TGA) were performed on TGA-Q50 system from TA instruments at a heating rate of 10° C. min−1 under air between 20° C. and 800° C. TD5%=Temperature of 5% degradation.
3
Thermal Analysis of SPION Powder
4
Characterization of Y2Si2O7 Ceramic Pellets
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After polishing, the phase compositions of the pellets were characterized using X-ray diffraction (XRD) by a Panalytical X'Pert Pro system (Westborough, MA, USA) with a copper target (Kα = 0.15406 nm) and a step size of 0.013° 2θ. The bulk densities of the pellets were measured using the Archimedes technique with an Adam analytical scale with a hanging system (Danbury, NY, USA) where distilled water was used as the immersing medium. Except for the amorphous sample with a theoretical density of 83%, the measured densities of all the pellets were >95% of their reported theoretical densities. Phase stability of the Y2Si2O7 powder was determined by thermogravimetric analysis (TGA) using a TGA-Q50 system (TA instruments, New Castle, DE). Approximately 30 mg of the powders were weighed and placed in an alumina crucible then heated in an argon atmosphere at a rate of 10 °C min−1 from room temperature to 1200 °C. Microstructural analyses of the sintered pellets were carried out before and after the leaching experiment via scanning electron microscopy (SEM) using the FEI Versa (USA) and energy-dispersive spectroscopy (EDS), conducted with an Oxford Instruments INCA detector (Abingdon, UK). Raman spectra of the pellet surfaces before and after the leaching experiment were collected using a Raman spectrometer with a 514 nm laser, a 10 s exposure time, and an operating power of 20 mW.
5
Characterization of CsPbI3 Perovskite Materials
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The phase composition of the CsPbI3 pellet and synthesized powders were confirmed via X-ray diffraction (XRD) using a Panalytical X'Pert Pro system (Westborough, MA, USA) with a copper target (Kα = 0.15406 nm) and a step size of 0.013°. The physical density of the pellet was measured via the Archimedes technique using an Adam analytical scale (Danbury, NY, USA). The microstructures of the pellet samples were examined before and after the leaching experiments via digital photography, and scanning electron microscopy (SEM) using a FEI Versa (USA) with an energy-dispersive spectroscopy (EDS) system, conducted with an additional Oxford Instruments INCA detector (Abingdon, UK). Thermogravimetric analysis (TGA) was used to analyze the thermal stability of CsPbI3 using a TGA-Q50 system (TA instruments, New Castle, DE). ∼20 mg of CsPbI3 powders were weighed and placed in an alumina crucible, after which the sample was heated at a rate of 20 °C min−1 in a steady flow of argon gas at 50 mL min−1 until the temperature reached 1100 °C and then cooled at the same rate to 50 °C. A measurement of the Raman shift at the pellet surface was performed before and after the leaching experiment, using a Raman spectrometer with a 514 nm laser, an exposure time of 10 s, and an operating power of 20 mW.
6
Characterization of Adsorbent Pellets
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Fourier transform infrared (FTIR) spectra were recorded using a Bio-RAD FTS-40 IR spectrophotometer (Bio-RAD Laboratories, Inc., Hercules, CA, USA) in reflectance mode to characterize the functional groups of the pellets. For preparation of samples, 6 mg of crushed pellets in powdered form were mixed with 60 mg of spectroscopic grade KBr. A total of 256 scans with a spectral resolution of 4 cm−1 were collected over a fixed wavenumber range (400–4000 cm−1), where the background spectrum of potassium bromide was subtracted. Thermogravimetric analysis (TGA) profiles of pellets were obtained using a TA Instruments Q50 TGA system (TA instruments, New Castle, DE, USA) to determine the thermal stability of adsorbents in terms of weight loss profiles and derivative thermal analysis (DTA). Samples were heated in open aluminum pans to a maximum temperature of 500 °C at a constant heating rate (5 °C/min) under a nitrogen atmosphere as the carrier gas.
7
Thermal Profiles of Composite Materials
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Thermal profiles of the composite materials were obtained using a TA Instruments Q50 TGA system (New Castle, DE, USA) using a heating rate of 5 °C/min up to 500 °C and nitrogen as the carrier gas. The results reported herein are shown as first derivative (DTG) plots of weight with temperature (%/°C) against temperature (°C).
8
Thermal Stability Analysis of Hydrogels
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Thermal stability of the hydrogels and cellulose were determined using a TA Instruments Q50 TGA system (New Castle, DE, USA) operated with a heating rate of 5 °C min−1 up to 500 °C using nitrogen as the carrier gas. The results obtained are shown as first derivative (DTG) plots of weight with temperature (%/°C) against temperature (°C).
9
Thermal Profiles of Biopolymers
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Thermal profiles of the FSG, FGG and XG were obtained using a TA Instruments Q50 TGA system (New Castle, DE, USA) with a heating rate of 5 °C min−1 up to 500 °C and nitrogen as the carrier gas. The results reported herein are shown as first derivative (DTG) plots of weight loss (%) with temperature (wt.%/°C) against temperature (°C).
10
Thermogravimetric Analysis of Samples
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TGA was carried out using a TA instruments Q50 TGA system. The samples were heated from room temperature (around 22 °C) to 800 °C at a rate of 5 °C min−1, under a nitrogen flux of 100 ml min−1.
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