JW-BK400 High Throughput Surface Area and Aperture Analyzer characteristic: 1. Testing principle Under low temperature conditions (such as liquid nitrogen or liquid argon), the pressure of the adsorbate gas is changed in a closed vacuum system. The pressure change before and after the sample adsorbs gas molecules is measured by a high-precision pressure sensor, and the gas adsorption amount is calculated. The isothermal adsorption desorption curve is depicted, and various physical analysis models are applied for specific surface area and porosity analysis. 2. Cold free space He automatic calibration, suitable for any powder or particle material 3. Vacuum degassing A standardized design that integrates in-situ and ex situ vacuum degassing can simultaneously perform in-situ degassing treatment on four samples at different temperatures and times; 4. Vacuum heating deaerator Optional. The external 4-station vacuum degassing machine can perform degassing pretreatment on 4 samples simultaneously, and when used in conjunction with the surface area analyzer host, it can greatly improve testing efficiency. The maximum degassing temperature is 400 ℃; 5. Convenient operation and humanized design Ethernet data collection, guided operation software, one computer can control multiple instruments simultaneously and remotely; 6. Testing module Core design, small dead volume space Vd, real-time detection and control of internal temperature Td, ensuring the scientific and accurate determination of adsorption capacity; 7. Pressure sensor Core component, high-precision capacitive thin film pressure sensor, enables gas partial pressure p/p0 in physical adsorption analysis to reach 10-4 (N2,77K) 8. Liquid nitrogen surface control Adopting comprehensive control technologies such as 3L large capacity vacuum glass inner Dewar flask, efficient sealing, small inner section, and software correction, the non-uniform temperature field inside the sample tube is kept relatively constant (isothermal) during the testing process 9. Anti flying measures Self controlled adjustable multi-channel parallel vacuum system, with precise "step like" automatic control of vacuum pumping speed to prevent sample flying; At the same time, a built-in anti pumping unit is designed to minimize the possibility of ultrafine powder being pumped away, effectively avoiding instrument contamination Technical parameters: Model: JW-BK400 Test principle: Static capacity method for gas adsorption Adsorbent gases: Non corrosive gases such as N2, Ar, Kr, H2, O2, CO2, CO, NH3, CH4, etc Analysis port: 4 sample tube analysis ports, parallel independent testing at the same time; Specific surface area range: 0.0005m2/g to unknown upper limit; The repeatability (relative standard deviation) of the standard sample is ≤± 1.0%; Aperture range: 0.35nm-500nm; Accurate analysis of mesopores larger than 2nm; Median aperture repeatability (standard deviation) ≤ 0.2nm; Minimum pore volume: 0.0001 cm3/g Pressure sensor (analysis station): 1000torr, 0.20% (reading), each analysis station is equipped with one set, a total of 4 sets Relative pressure P/P0 range: 10-4-0.998 Degassing station: equipped with 4 stations at the same position, capable of vacuum heating and degassing 4 samples simultaneously; An external 4-station vacuum heating and degassing machine can also be optionally selected Degassing temperature: room temperature -400 ℃, accuracy 1 ℃ Vacuum pump: Double stage rotary vane mechanical vacuum pump, ultimate vacuum 6.7 * 10-1Pa Host specifications: length 840mm x width 630mm x height 940mm, weight approximately 80 Kg -90 Kg Environmental temperature requirement: Room temperature, it is recommended to equip with air conditioning Environmental humidity requirement: 10% -90% Power requirements: AC 220V ± 20V, 50/60HZ, maximum power 300W, current 5A; Recommended application areas: battery positive and negative electrode materials, carbon black, white carbon black, calcium carbonate, titanium dioxide, ceramic raw materials such as alumina, zinc oxide, silicon carbide, etc
characteristic: 1. Testing principle Under low temperature conditions (such as liquid nitrogen or liquid argon), the pressure of the adsorbate gas is changed in a closed vacuum system. The pressure change before and after the sample adsorbs gas molecules is measured by a high-precision pressure sensor, and the gas adsorption amount is calculated. The isothermal adsorption desorption curve is depicted, and various physical analysis models are applied for specific surface area and porosity analysis. 2. Cold free space He automatic calibration, suitable for any powder or particle material 3. Vacuum degassing A standardized design that integrates in-situ and ex situ vacuum degassing can simultaneously perform in-situ degassing treatment on four samples at different temperatures and times; 4. Vacuum heating deaerator Optional. The external 4-station vacuum degassing machine can perform degassing pretreatment on 4 samples simultaneously, and when used in conjunction with the surface area analyzer host, it can greatly improve testing efficiency. The maximum degassing temperature is 400 ℃; 5. Convenient operation and humanized design Ethernet data collection, guided operation software, one computer can control multiple instruments simultaneously and remotely; 6. Testing module Core design, small dead volume space Vd, real-time detection and control of internal temperature Td, ensuring the scientific and accurate determination of adsorption capacity; 7. Pressure sensor Core component, high-precision capacitive thin film pressure sensor, enables gas partial pressure p/p0 in physical adsorption analysis to reach 10-4 (N2,77K) 8. Liquid nitrogen surface control Adopting comprehensive control technologies such as 3L large capacity vacuum glass inner Dewar flask, efficient sealing, small inner section, and software correction, the non-uniform temperature field inside the sample tube is kept relatively constant (isothermal) during the testing process 9. Anti flying measures Self controlled adjustable multi-channel parallel vacuum system, with precise "step like" automatic control of vacuum pumping speed to prevent sample flying; At the same time, a built-in anti pumping unit is designed to minimize the possibility of ultrafine powder being pumped away, effectively avoiding instrument contamination
