The thermal and structural properties of TPU1, TPU2, and TPU1 + TPU2 blends were determined in a DSC Q100 calorimeter (TA Instruments, New Castle, DE, USA) under nitrogen atmosphere (flow: 50 mL/min). A total of 8–9 mg of TPU film was placed in a hermetically sealed aluminum pan and placed in the oven of the DSC equipment. For removing the thermal history, the TPU film was heated from −80 to 100 °C using a heating rate of 10 °C/min. Then, the TPU was cooled down to −80 °C using a cooling rate of 10 °C/min and, finally, the TPU was heated again from −80 to 150 °C using a heating rate of 10 °C/min. The glass transition temperature (Tg) of TPU1, TPU2, and TPU1 + TPU2 blends were obtained from the second DSC heating run.
Dsc q100 calorimeter
Manufactured by TA Instruments
Sourced in United States
The DSC Q100 is a differential scanning calorimeter (DSC) that measures the heat flow associated with phase transitions or chemical reactions in a sample as a function of temperature or time. It provides quantitative and qualitative information about endothermic and exothermic processes in materials.
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5 protocols using dsc q100 calorimeter
1
Thermal and Structural Properties of TPU Blends
2
Thermal Analysis of Eudragit Coatings
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Differential scanning calorimetry (DSC) analyses were performed by means of a DSC Q100 calorimeter (TA Instruments, New Castle, DE, USA), using nitrogen as a purge gas (50 mL/min). Samples of about 10 mg were cut from uncoated and coated specimens. Eudragit® RS/RL and Eudragit® NE films prepared by casting (i.e., by pouring liquid formulations into circular silicon molds and drying in a ventilated oven for 12 h at 40 °C) were also analyzed. Samples were heated at 10 °C/min from −50 °C to 160–240 °C (the heating ramp never exceeded 180 °C in the case of specimens coated with the Eudragit® RS/RL formulation, because the coating was prone to degradation at higher temperatures).
3
Thermal Analysis of Ibuprofen Tablets
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Briefly, optimized IBU tablets (batch 10 printed at 405 nm wavelength) were pulverized in a mortar and pestle, and the powder was added in an aluminum pan. IBU API was also collected and placed into a similar container to compare to the tablet sample to observe the effects of polymers and excipients on the drug. A blank sample, and empty aluminum pan, was used as a reference for the samples. Each sample was subjected to increasing heat at 10 °C/min from 20 to 200 °C in the presence of a constant supply of nitrogen gas.
Ibuprofen was characterized using a DSCQ100 calorimeter (TA Instruments, New Castle, DE). Thermal analysis software was utilized to analyze data generated by the DSC test (Universal Analysis 2000, TA Instruments). Tablet samples were obtained by pulverizing tablets in a mortar and pestle and transferring those contents to an aluminum pan. Each sample was subjected to a temperature increase of 10 °C/min over a range of 20-200 °C in the presence of a constant supply of nitrogen.
Ibuprofen was characterized using a DSCQ100 calorimeter (TA Instruments, New Castle, DE). Thermal analysis software was utilized to analyze data generated by the DSC test (Universal Analysis 2000, TA Instruments). Tablet samples were obtained by pulverizing tablets in a mortar and pestle and transferring those contents to an aluminum pan. Each sample was subjected to a temperature increase of 10 °C/min over a range of 20-200 °C in the presence of a constant supply of nitrogen.
4
Thermal Characterization of Ionic Liquids
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DSC measurements of ILs were carried out using the TA Instruments Q100 DSC calorimeter (Milan, Italy), equipped with a liquid sub-ambient accessory. High purity standards (indium and cyclohexane) were used for instrument calibration. The sample (about 5 mg) was sealed in an aluminium pan, equilibrated at −90 °C, heated from −90 to 200 °C (first heating cycle), cooled from 200 to −90 °C (cooling cycle), and heated again from −90 to 200 °C (second heating cycle) at a rate of 10 °C min−1 under a flow of nitrogen.
Thermal stability and kinetic parameters of the synthesised ILs were investigated using the TA instruments Q500 thermogravimetric analyser (Milan, Italy). A certain amount of sample (4–5 mg) was placed in a platinum pan and heated at 10 °C min−1 from 40 to 600 °C under a flow of nitrogen (60 mL/min).
Thermal stability and kinetic parameters of the synthesised ILs were investigated using the TA instruments Q500 thermogravimetric analyser (Milan, Italy). A certain amount of sample (4–5 mg) was placed in a platinum pan and heated at 10 °C min−1 from 40 to 600 °C under a flow of nitrogen (60 mL/min).
5
Differential Scanning Calorimetry Protocol
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DSC analyses were performed through a Q100 DSC calorimeter (TA Instruments, New Castle, Delaware, US). The reliability of the analyses was verified by performing the calibration by evaluating the melt purity of Indium Standards (156,6 °C and 28.45 J/g).
Each sample was subjected to a heating ramp (10 °C/min) from 20 °C to 200 °C, followed by a quenching (rate 50 °C/min) to −80 °C. The samples were brought back to 200 °C via a second heating ramp (10 °C/min).Fig. S2 shows the thermograms referring to the second heating ramp of Sample1, 2, and 3.
Each sample was subjected to a heating ramp (10 °C/min) from 20 °C to 200 °C, followed by a quenching (rate 50 °C/min) to −80 °C. The samples were brought back to 200 °C via a second heating ramp (10 °C/min).
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