ASTM E831 ASTM D3386 1500℃ STA Simultaneous Thermal Analyzer DIN 51045 TGA DSC

ASTM E831 ASTM D3386 1500℃ STA Simultaneous Thermal Analyzer DIN 51045 TGA DSC Function STA Analysis Machine

The operating principle of a simultaneous thermal analyzer (STA) is to measure the change in mass of a substance as a function of temperature or time, using programmed temperature control. Its main components include a heating furnace, a balance, a temperature controller, and a recording system.

Operating Principle

A simultaneous thermal analyzer operates based on the temperature changes of a sample and the processes of heat conduction, absorption, and radiation. It controls the temperature of the furnace to heat, cool, and maintain a constant temperature for the sample, then monitors and records the sample's temperature changes and the corresponding physicochemical properties.

Applications

A simultaneous thermal analyzer can simultaneously measure both TG and DSC information, covering a wide range of measurement areas, including thermal stability, redox analysis, decomposition behavior, corrosion studies, decomposition kinetics, melting/crystallization, solid-state phase transitions, crystallinity, and glass transition.

Simultaneous thermal analyzers are widely used in research and development, process optimization, and quality control in various fields, including plastics, rubber, coatings, pharmaceuticals, catalysts, inorganic materials, metallic materials, and composite materials.

Application area

Widely used in research and development, process optimization, and quality monitoring in various fields such as plastics, rubber, coatings, pharmaceuticals, catalysts, inorganic materials, metal materials, and composite materials.

                     Plastic materials                  Metallic materials                   Drugs                                    Paint

Structural Advantages

1. The furnace heating system utilizes double-wound precious metal platinum-rhodium alloy wire to reduce interference and enhance high-temperature resistance.

2. The tray sensor is precision-crafted from precious metal alloy wire, offering high-temperature, oxidation, and corrosion resistance.

3. The power supply and heat dissipation circuits are separated from the main unit to minimize the impact of heat and vibration on the microthermobalance.

4. The main unit utilizes an insulated heating furnace to minimize the thermal impact on the chassis and microthermobalance.

5. The furnace utilizes double insulation for improved linearity; the furnace features automatic lift for rapid cooling; and an exhaust outlet allows for integration with infrared sensors.

Controller and Software Advantages

1. Utilizes an imported ARM processor for faster sampling and processing speeds.

2. Four-channel sampling AD acquires TG and temperature signals.

3. Heating control utilizes a PID algorithm for precise control. Multi-stage heating and constant temperature control are possible.

4. USB bidirectional communication between the software and the instrument enables complete remote operation. Instrument parameters can be set and stopped via the computer software. 5. 7-inch full-color 24-bit touchscreen for an enhanced human-machine interface. TG calibration can be performed directly on the touchscreen.

Compliant with industry standards

ASTM D 3386, ASTM D 696, ASTM E831-2019, ASTM E831-06, ASTM E831-2014, DIN 51045-3-2009, GB/T 33047.3-2021, GB/T 4498.2-2017, GB/T 32868-2016, GB/T 31984-2015, GB/T 14837.2-2014, GB/T 29189-2012, etc.

ASTM E831 ASTM D3386 1500℃ STA Simultaneous Thermal Analyzer DIN 51045 TGA DSC Function STA Analysis Machine

Technical Specification

Application examples

Sample Testing calcium oxalate chart

Data analysis

Calcium oxalate undergoes three stages of significant weight loss at RT-1000 ℃. The first stage represents the loss of water molecules, the second stage represents the decomposition of CaC2Q4 into CaCQ3, and the third stage represents the decomposition of CaCO3 into Ca0. From the above figure, it can be concluded that calcium oxalate loses 12.31% of water molecules at RT-300 ℃. In the second stage of 350 ℃ -550 ℃, calcium oxalate begins to decompose and lose 19.14% weight, resulting in a mass proportion of CaCQ3 of 100% -12.31% -19.14%=68.55%. In the third stage of 600 ℃ -850 ℃, the weight loss is 30.74%, resulting in a mass proportion of calcium oxide of 68.55% -30.74%=37.81%

Sample Testing rubber products chart

Data analysis

Thermogravimetric analysis can quickly determine the proportion of various components in rubber. According to the standard ISO 9924-1-2016 Rubber and Rubber Products The thermogravimetric method is used to determine the composition of vulcanized rubber and uncured compounds, and the above spectrum is obtained. The first stage in the figure shows the weight loss due to rubber evaporation, with a weight loss of 19.14% at RT-316.7 ℃; In the second stage, the Weight loss is between 316.7 ℃ and 550.10 ℃, and the rubber begins to crack. At RT-550.10 ℃, the weight loss of organic matter content is 71.62%; Oxygen is supplied at 550 ℃ -650 ℃, and the weight loss of carbon black combustion occurs, resulting in a carbon black content of 21.95% in the rubber.