YG-23A Capacitive Mercury Pressure Tester Introduction: Mercury intrusion method is a commonly used method for determining the pore volume, pore size distribution, and porosity of mesopores and macropores in solid materials. It is based on the non wettability of mercury to general solids, and under the action of external pressure, mercury enters the solid pore channels. Then, the pore structure of the solid material is analyzed based on the Washburn theoretical equation. The YG-23A mercury intrusion porosimeter is commonly used for characterizing the structural and physical properties of materials such as shale, catalyst materials, building materials, and polymer resins. characteristic: 1. Vacuum system It mainly consists of a two-stage vacuum pump and a vacuum sensor, with a maximum vacuum degree of 0.05Pa. 2. Pressurization system Provided by a 100ml electric plunger pump, it provides 0-50Mpa (7250psi) pressure for the process, with stepless speed regulation to control the speed of the pump and the addition and removal of pressure. 3. Sample Room System The connection of each component in the sample chamber adopts the principle of gravity difference, raising the position of the sample chamber and conducting pressure testing in a positive pressure environment (the height difference causes the pressure in the sample chamber to be nearly 1 atmosphere lower than the mercury level in the volumetric meter and the mercury level in the mercury bottle, thus enabling all pressure measurements to be carried out under positive pressure). This precision technology overcomes the inconvenience of other manufacturers' instruments measuring pressure under negative pressure (less than 1 atmosphere) at home and abroad. Convenient and applicable, ensuring the continuity, stability, reliability, and integrity of the entire experiment. 4. Measurement and control system It includes three parts: pressure measurement, capacitance measurement, and vacuum measurement. The pressure measurement is represented by two pressure transmitters, 1Mpa (145psi) and 50Mpa (7250psi), and a digital pressure gauge Technical parameters: Pore diameter testing range: 30nm-200um Pore volume testing range: 0.3-3.5ml Instrument accuracy: ≤ 0.5% Analysis station: 1 independent sample analysis station, with a maximum sample chamber volume of 15cc Working pressure range: 0.01-50Mpa, using dual pressure measurement technology Maximum pressure of the instrument: 60Mpa Static pressure head: ≤ 20mmHg Blank value: Approximately 0.25ml at 50Mpa Safety protection: With strict mercury safety protection measures, it effectively avoids the impact of mercury vapor on indoor environment Sample type: solid particle sample or block solid sample Vacuum pump: Bipolar mechanical vacuum pump, maximum vacuum degree 0.05Pa Analysis model: cumulative total pore volume, cumulative specific surface area, average pore size, pore size distribution (porosity) curve, pore throat ratio, mercury injection/removal curve, etc
Introduction: Mercury intrusion method is a commonly used method for determining the pore volume, pore size distribution, and porosity of mesopores and macropores in solid materials. It is based on the non wettability of mercury to general solids, and under the action of external pressure, mercury enters the solid pore channels. Then, the pore structure of the solid material is analyzed based on the Washburn theoretical equation. The YG-23A mercury intrusion porosimeter is commonly used for characterizing the structural and physical properties of materials such as shale, catalyst materials, building materials, and polymer resins.
