After the thermal process by microwave, the lentil seeds were milled using an impact miller (NutriMill, SKU – 760200, NutriMill®, Utah, USA), equipped with a high-speed impact chamber stainless steel milling heads to create fine flour. Then the thermal properties of obtained flours were evaluated by using a differential scanning calorimeter (Model Q 2000 TA Instruments, New Castle, DE, USA) calibrated with indium according to the method of Setia et al. (2019) (link) with some modification. Lentil flour (3.3–3.6 mg) was precisely weighed into a hermetic aluminum pan (TA Instruments, New Castle, DE, USA), then deionized water (∼3–4 volumes, v/w) was added prior to sealed hermetically and allowed to equilibrate at ambient temperature overnight. The sealed pans were heated from 10 to 180 °C at a heating rate of 10 °C per minute. The thermal properties onset (To), peak (Tp), and conclusion (Tc) temperatures, as well as enthalpy changes (ΔH), were calculated from the observed endothermic peak in the DSC thermogram with the use of the Universal Analysis 2000 Software (TA Instruments, New Castle, DE, USA).
Model q2000
Manufactured by TA Instruments
Sourced in United States
The Model Q2000 is a Differential Scanning Calorimeter (DSC) designed for thermal analysis. It measures the heat flow into or out of a sample as a function of temperature or time, providing information about the sample's thermal properties and transitions.
Automatically generated - may contain errors
Lab products found in correlation
Differential scanning calorimetry, by TA Instruments (2 mentions)
Hermetic aluminum pan, by TA Instruments (1 mentions)
Universal analysis 2000, by TA Instruments (1 mentions)
Ta universal analysis software, by TA Instruments (1 mentions)
Discovery model, by TA Instruments (1 mentions)
Potassium cyanide, by Thermo Fisher Scientific (1 mentions)
Ammonium carbonate, by Thermo Fisher Scientific (1 mentions)
2 2 azobis 2 methylpropionitrile aibn, by Merck Group (1 mentions)
3 trimethoxysilyl propyl methacrylate, by Thermo Fisher Scientific (1 mentions)
400 mhz spectrometer, by Bruker (1 mentions)
9 protocols using model q2000
1
Thermal Properties of Microwave-Treated Lentil Flour
2
Thermal Analysis of DEET-based Fibers
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All DSC trials were performed on a TA Instruments (New Castle, DE, USA) Model Q2000 using nitrogen as purge gas at a flow rate of 50 mL min−1. The samples with a mass of about 10 mg, used for the determination of solubility, were transferred to 50-μL aluminum pans and sealed while at 130 °C. The high-DEET-content samples were transferred via a syringe while the low-DEET content samples were transferred via a spatula. The samples were held isothermally at 130 °C for 5 min, before cooling to −20 °C at a rate of 2 K·min−1.
For the characterization of the spun monofilaments, samples with a mass of between 1.5 and 3 mg were cut with scissors and sealed in the pans. The samples were held isothermally at −30 °C for 5 min, before they were heated to 230 °C at a rate of 5 K·min−1. The results were analyzed with the TA Universal Analysis software. All reported values represent the average of two measurements.
For the characterization of the spun monofilaments, samples with a mass of between 1.5 and 3 mg were cut with scissors and sealed in the pans. The samples were held isothermally at −30 °C for 5 min, before they were heated to 230 °C at a rate of 5 K·min−1. The results were analyzed with the TA Universal Analysis software. All reported values represent the average of two measurements.
3
Thermal Characterization of Hydrogels
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The Tg of hydrogels was obtained by using differential scanning calorimetry (DSC) equipment (TA Instruments, Model Q2000, New Castle, DE, USA). Modulated DSC mode was employed and the measurements were performed using dry hydrogel powder (10 mg). The method comprised two temperature cycles; in the first one, each sample was cooled to −30 °C, maintained isothermally for 5 min, the temperature was modulated to ± 0.5 °C every 60 s, and the sample was heated with a ramp of 10 °C min−1 up to 200 °C. For the second cycle, the heating ramp was changed to 5 °C min−1 up to 200 °C.
The decomposition temperature was measured by thermogravimetric analysis equipment (TGA) from TA Instruments (Discovery Model, New Castle, DE, USA), using a heating ramp of 10 °C min−1 from 25 °C to 600 °C in a nitrogen atmosphere. The weight loss and weight residue were recorded during the heating ramp.
The decomposition temperature was measured by thermogravimetric analysis equipment (TGA) from TA Instruments (Discovery Model, New Castle, DE, USA), using a heating ramp of 10 °C min−1 from 25 °C to 600 °C in a nitrogen atmosphere. The weight loss and weight residue were recorded during the heating ramp.
4
Synthesis and Characterization of Methacrylate Functionalized Stainless Steel and Inconel Alloys
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2-Acrylamido-2-methyl-4-pentanone was purchased from Tokyo Chemical Industry, Co., LTD (Tokyo, JP). 3-(trimethoxysilyl)propyl methacrylate, potassium cyanide, and ammonium carbonate were obtained from Acros Organics (NJ, USA). 2,2′-Azobis(2-methylpropionitrile) (AIBN) was obtained from Sigma-Aldrich, Inc. (St. Louis, MO, USA). All other chemicals were purchased from Aldrich Chemical Co. (Milwaukee, WI), TCI America (Boston, MA), or Alfa Aesar (Ward Hill, MA) and used as received unless otherwise noted. Highly corrosion resistant stainless steel 316L having thickness 0.008 inch (ASTM A240 /A240 M standard) with 2B finish (Ra roughness of the surface typically being between 0.3 and 0.4 μm) and Inconel™ 718 alloy sheet with 0.02 inch thickness were purchased from McMaster-Carr (Chicago, IL). 1H NMR spectra were obtained with a Bruker 400 MHz spectrometer (16 scans). ATR-IR data were recorded with 32 scans at 4 cm−1 resolution with a PerkinElmer Model Spectrum 400 ATR-FTIR spectrometer. Melting points were determined by differential scanning calorimetry (DSC, TA Instruments Model Q-2000). Mass spectra were obtained with a Waters Q-TOF Premier spectrometer, and X-ray photoelectron spectra (XPS) were obtained with a Kratos XSAM 800 Surface Analysis System equipped with a hemispherical energy analyzer.
5
Thermal Analysis of Nylon 6 Composites
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The polymorphic structure, melting temperature, crystallization temperature, and degree of crystallinity of all the samples were determined by means of a calorimeter (Model Q-2000, TA Instruments, USA). The heating and cooling rate were set at 10 °C/min, and high-purity nitrogen (99.999%) with a flow rate of 50 mL/min was used to avoid oxidation of the samples. Between 10 and 15 mg of each sample was tested from 0 to 260 °C. The assays were performed following the ASTM D3418 standard.
The degree of crystallinity was calculated using the following Equation (2)
where is the heat of fusion of every sample and is the heat of fusion of the pure Nylon 6 with 100% crystallinity, equal to 191.064 J/g for the specific case of our polymer [29 (link)], and is the weight fraction of the MCB nanoparticles
The degree of crystallinity was calculated using the following Equation (2)
where is the heat of fusion of every sample and is the heat of fusion of the pure Nylon 6 with 100% crystallinity, equal to 191.064 J/g for the specific case of our polymer [29 (link)], and is the weight fraction of the MCB nanoparticles
6
Determination of Glass Transition Temperature
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Example 4
Determination of Glass Transition Temperature of Amorphous Compound 1-(S)
The glass transition temperature (Tg) was determined to be 105.8° C. by modulated DSC (MDSC) using TA Instruments Differential Scanning calorimetry, Model Q2000 with autosampler. The MDSC instrument conditions were as follows: modulation temperature amplitude: ±1° C.; modulation: 60 second; ramp rate: 2° C./min; temperature range: 10-150° C.; Tzero aluminum sample pan and lid; and nitrogen gas flow at 50 mL/min. The MDSC thermogram is shown in
7
Thermal Analysis of Captopril Filaments
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Differential scanning calorimetry (DSC) studies were performed on powdered captopril and drug loaded filaments using TA instrument (Model Q 2000, TA Instruments, Newcastle, DE, USA). Briefly, 5–10 mg material was transferred in aluminium pan and scanned at the heating rate of 10 °C min-1 over a temperature range of 25 to 250 °C under a continuous nitrogen purge 50 mL/min. The instrument was pre-calibrated using Zinc and indium standards.
8
Thermal Analysis of Materials
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The thermal properties of the studied materials were analyzed using a model Q 2000 differential scanning calorimeter, model Q 2000 (TA Instrument Inc., New Castle, DE, USA), in the range of 0–250 °C at a heating rate of 10 °C/min.
9
Determination of Glass Transition Temperature
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Example 4
Determination of Glass Transition Temperature of Amorphous Compound 1-(S)
The glass transition temperature (Tg) was determined to be 105.8° C. by modulated DSC (MDSC) using TA Instruments Differential Scanning calorimetry, Model Q2000 with autosampler. The MDSC instrument conditions were as follows: modulation temperature amplitude: ±1° C.; modulation: 60 second; ramp rate: 2° C./min; temperature range: 10-150° C.; Tzero aluminum sample pan and lid; and nitrogen gas flow at 50 mL/min. The MDSC thermogram is shown in
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