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Beijing AVIC Times Instrument Equipment Co., Ltd
DSC-TGA-STA Thermal Analysis Instrument/Manufacturer
NegotiableUpdate on 01/01
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Overview
DSC equipment has become an instrument in chemistry and materials science laboratories, serving as a universal standard tool for characterizing thermodynamic and kinetic properties, phase transitions, and property evolution. The DSC-TGA-STA thermal analysis instrument/manufacturer Flash DSC greatly expands the range of heating and cooling rates (up to 1 million degrees per second) and can measure changes in ultra short time scales.
Product Details
1. DSC-TGA-STA Thermal Analysis Instrument/Manufacturer Introduction
Differential Scanning Calorimetry (DSC) has been widely used as a technique. Differential scanning calorimeter is both a routine quality testing tool and a research tool. The measurement is the relationship between temperature and heat flux related to the internal thermal transformation of the material. Our company's instrument is a thermal flow differential scanning calorimeter, which has the characteristics of good repeatability and high accuracy, and is particularly suitable for precise measurement of specific heat. This device is easy to calibrate, has low difficulty in use, is fast and reliable, and has a wide range of applications, especially in material research and development, performance testing, and quality control. The characteristics of materials, such as glass transition temperature, cold crystallization, phase transition, melting, crystallization, product stability, curing/crosslinking, oxidation induction period, etc., are all research areas of differential scanning calorimetry. Our company has multiple types of differential scanning calorimetry instruments, and customers choose different models based on experimental parameters and requirements.
The application scope of differential scanning calorimeter includes: determination of curing reaction temperature and thermal effect of polymer materials, determination of phase transition temperature and thermal effect of substances, determination of crystallization and melting temperature and thermal effect of polymer materials, determination of glass transition temperature of polymer materials, etc. Different models of instruments are used to test different indicators.
Place the sample and reference material separately in the crucible and heat them in the furnace to change the temperature of the sample and reference material. If the heat capacity of the reference substance and the sample is the same and there is no thermal effect on the sample, the temperature difference between the two is almost "zero", and a smooth curve is obtained. As the temperature increases, the sample produces a thermal effect, while the reference substance does not, resulting in a temperature difference between the two, which is manifested as a peak in the DSC curve. The larger the temperature difference, the larger the peak, and the more times the temperature difference changes, the more peaks there are. The peak above the peak is called the exothermic peak, and the peak below the peak is called the endothermic peak.
2. DSC-TGA-STA thermal analysis instrument/manufacturer's principle
Substances often undergo thermal effects during physical and chemical changes, and the phenomena of heat release and absorption reflect the changes in the enthalpy of matter. Differential scanning calorimeter is used to measure the functional relationship between temperature or time and the temperature difference between a sample and a reference material under the same heating conditions.
Differential scanning calorimetry is a technique for measuring the power difference between an output substance and a reference substance as a function of temperature under programmed temperature control. Our company's instrument is a thermal flow differential scanning calorimeter. The vertical axis represents the thermal flow difference between the sample and the reference material, measured in milliwatts. The horizontal axis represents time (t) or temperature (T), with growth from left to right (if not in compliance with this regulation, it should be noted).
After placing the sample and reference material into the crucible, heat them up at a certain rate. If the heat capacity of the reference material and sample is roughly the same, an ideal scanning calorimetry analysis chart can be obtained.
T in the figure is the temperature curve reflected by the thermocouple inserted on the reference material. The temperature difference curve between the AH line reaction sample and the reference substance. If no thermal effect occurs in the sample, then Δ T=0 between the sample and the reference material, a smooth baseline like AB, DE, and GH appears on the curve. When a thermal effect occurs and the temperature of the sample is lower than that of the reference substance, an endothermic peak such as BCD appears downward. On the contrary, an upward EFG exothermic peak appears.
The number, position, peak area, direction, height, width, and symmetry of the peaks in the figure reflect the number of physical and chemical changes that occur in the sample within the measured temperature range, the temperature range of the transformation, the magnitude and polarity of the thermal effect. The height, width, and symmetry of the peak are not only related to the testing conditions, but also to the dynamic factors during the sample variation process, and the measured results are much more complex than the ideal curve.
3. Characteristics of DSC-TGA-STA Thermal Analysis Instrument
3.1 New furnace structure, better resolution and baseline stability;
3.2 Real time data transmission from the lower computer of the instrument, user-friendly interface, and easy operation.
Differential Scanning Calorimetry (DSC) has been widely used as a technique. Differential scanning calorimeter is both a routine quality testing tool and a research tool. The measurement is the relationship between temperature and heat flux related to the internal thermal transformation of the material. Our company's instrument is a thermal flow differential scanning calorimeter, which has the characteristics of good repeatability and high accuracy, and is particularly suitable for precise measurement of specific heat. This device is easy to calibrate, has low difficulty in use, is fast and reliable, and has a wide range of applications, especially in material research and development, performance testing, and quality control. The characteristics of materials, such as glass transition temperature, cold crystallization, phase transition, melting, crystallization, product stability, curing/crosslinking, oxidation induction period, etc., are all research areas of differential scanning calorimetry. Our company has multiple types of differential scanning calorimetry instruments, and customers choose different models based on experimental parameters and requirements.
The application scope of differential scanning calorimeter includes: determination of curing reaction temperature and thermal effect of polymer materials, determination of phase transition temperature and thermal effect of substances, determination of crystallization and melting temperature and thermal effect of polymer materials, determination of glass transition temperature of polymer materials, etc. Different models of instruments are used to test different indicators.
Place the sample and reference material separately in the crucible and heat them in the furnace to change the temperature of the sample and reference material. If the heat capacity of the reference substance and the sample is the same and there is no thermal effect on the sample, the temperature difference between the two is almost "zero", and a smooth curve is obtained. As the temperature increases, the sample produces a thermal effect, while the reference substance does not, resulting in a temperature difference between the two, which is manifested as a peak in the DSC curve. The larger the temperature difference, the larger the peak, and the more times the temperature difference changes, the more peaks there are. The peak above the peak is called the exothermic peak, and the peak below the peak is called the endothermic peak.
2. DSC-TGA-STA thermal analysis instrument/manufacturer's principle
Substances often undergo thermal effects during physical and chemical changes, and the phenomena of heat release and absorption reflect the changes in the enthalpy of matter. Differential scanning calorimeter is used to measure the functional relationship between temperature or time and the temperature difference between a sample and a reference material under the same heating conditions.
Differential scanning calorimetry is a technique for measuring the power difference between an output substance and a reference substance as a function of temperature under programmed temperature control. Our company's instrument is a thermal flow differential scanning calorimeter. The vertical axis represents the thermal flow difference between the sample and the reference material, measured in milliwatts. The horizontal axis represents time (t) or temperature (T), with growth from left to right (if not in compliance with this regulation, it should be noted).
After placing the sample and reference material into the crucible, heat them up at a certain rate. If the heat capacity of the reference material and sample is roughly the same, an ideal scanning calorimetry analysis chart can be obtained.
T in the figure is the temperature curve reflected by the thermocouple inserted on the reference material. The temperature difference curve between the AH line reaction sample and the reference substance. If no thermal effect occurs in the sample, then Δ T=0 between the sample and the reference material, a smooth baseline like AB, DE, and GH appears on the curve. When a thermal effect occurs and the temperature of the sample is lower than that of the reference substance, an endothermic peak such as BCD appears downward. On the contrary, an upward EFG exothermic peak appears.
The number, position, peak area, direction, height, width, and symmetry of the peaks in the figure reflect the number of physical and chemical changes that occur in the sample within the measured temperature range, the temperature range of the transformation, the magnitude and polarity of the thermal effect. The height, width, and symmetry of the peak are not only related to the testing conditions, but also to the dynamic factors during the sample variation process, and the measured results are much more complex than the ideal curve.
3. Characteristics of DSC-TGA-STA Thermal Analysis Instrument
3.1 New furnace structure, better resolution and baseline stability;
3.2 Real time data transmission from the lower computer of the instrument, user-friendly interface, and easy operation.
| DSC | DSC-214 | DSC-204 | DSC-404 | DSC-214H | DSC-404H |
| DSC range | 0～±600mW | ||||
| temperature range | RT~600℃ | -40℃~-600℃ | -150℃~-600℃ | RT~600 ℃ (with cooling scan) | -150 ℃~600 ℃ (with cooling scan) |
| heating rate | 0.1~100℃/min | ||||
| temperature accuracy | 0.001℃ | ||||
| temperature fluctuation | ±0.01℃ | ||||
| Temperature repeatability | ±0.1℃ | ||||
| DSC accuracy | 0.001mW | ||||
| DSC resolution | 0.01uW | ||||
| working power supply | AC220V/50Hz or customized | ||||
| Temperature control method | Heating, constant temperature, and cooling (fully automatic control program) | ||||
| program control | It can achieve six stage temperature rise and constant temperature control, and special parameters can be customized | ||||
| Curve scanning | Heating scan, cooling scan | ||||
| Atmosphere control | Two way automatic switching (instrument automatic switching) | ||||
| gas flow rate | 0-300mL/min (other ranges can be customized) | ||||
| gas pressure | ≤0.55MPa | ||||
| display mode | 24 bit color 7-inch LCD touch screen display | ||||
| data interface | Standard USB interface | ||||
| Parameter standards | Equipped with standard substance (tin), users can correct temperature and enthalpy by themselves | ||||
| software | Equipped with temperature multi-point correction function | ||||
| Remarks | All technical indicators can be adjusted according to user needs | ||||
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