XRD patterns were recorded on a Rigaku D/max2550VL/PC system, using Cu Kα radiation. SEM (JEOL JSM-6360LV, 15 kV), TEM and HRTEM (JEOL 2010, 200 kV) were used to observe the morphology of the samples. Nitrogen adsorption measurements were performed at 77 K on a Micromeritics ASAP 2020. BET specific surface area was calculated using the P/P0 data between 0.10 and 0.25. Raman spectra were collected on a Renishaw in Via Raman microscope. TGA was conducted on a Perkin-Elmer TGA-7 Thermal Analyzer under O2 flow, with a heating rate of 20 °C min−1. XPS spactra were recorded on a Perkin-Elmer PHI-5400 spectrometer, using Mg Kα radiation as the excitation source.
Tga 7 thermal analyzer
Manufactured by PerkinElmer
Sourced in United States
The TGA-7 Thermal Analyzer is a laboratory instrument used for thermal analysis. It measures the change in the physical and chemical properties of materials as a function of temperature or time. The TGA-7 provides precise measurement of weight changes in samples, enabling analysis of thermal stability, decomposition, and other thermodynamic properties.
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4 protocols using tga 7 thermal analyzer
1
Comprehensive Materials Characterization Protocol
2
Comprehensive Characterization of Nanomaterials
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XRD patterns were recorded on a Rigaku D/max2550VL/PC system, using Cu Kα radiation. DLS measurements were operated on Malvern Zetasizer Nano ZS. SEM (JEOL JSM-6360LV, 15 kV), TEM and HRTEM (JEOL 2010, 200 kV) were used to observe the morphology of the samples. Nitrogen adsorption measurements were performed at 77 K on a Micromeritics ASAP 2020. UV-vis absorption spectra were measured on a Perkin-Elmer 330 spectrophotometer. Raman spectra were collected on a Renishaw in Via Raman microscope. TGA was conducted on a Perkin-Elmer TGA-7 Thermal Analyzer under O2 flow, with a heating rate of 20 °C min−1. XPS spactra were recorded on a Perkin-Elmer PHI-5400 spectrometer, using Mg Kα radiation as the excitation source.
3
Thermal Stability and Crystallinity Characterization
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Thermal stability was investigated through TGA (Perkin-Elmer model TGA7 thermal analyzer) and DSC (Perkin-Elmer DSC-7). The testing was carried out from room temperature to 800 °C for TGA and room temperature to 220 °C for DSC. Samples were analyzed under a nitrogen environment, and a heating rate of 10 °C/min was adopted for both TGA and DSC. When a polymer crystallizes, it releases heat, so the enthalpy can explain the change of crystallinity [38 ]. Sample crystallinity (Xc) was calculated by comparing PP heat of fusion (165 J/g) with that of composite samples using the following relation:
where
where
ΔHm = Melting enthalpy of 100% crystalline polypropylene (209 J/g [39 ]);
WPP = Weight fraction of PP in the composite sample.
4
Thermal Analysis of U-LDH Composites
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Thermogravimetric and differential thermal gravimetric analyses (TGA-DTG) for pure U-LDH and the U-LDH composites with various CS contents was conducted on a Perkin–Elmer TGA 7-thermal analyzer (Arizona, Waltham, MA, USA) under nitrogen at a purge rate of 20 mL/min, with the scanning temperature in the range from 50 to 800 °C. A platinum crucible with a heating rate of 10 and 12 °C /min and a sample weight of 63.3 mg each were used. Meanwhile, the U-LDH content in the CS composite sample was determined on the basis of the residual ash percentage and the water amount of the U-LDH/CS itself, which measured the weight loss between 200 and 400 °C.
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