Microtrac MRB  - The Whole World of Particle Characterisation

Microtrac MRB provides the most comprehensive product portfolio for particle characterisation of a wide variety of samples - from nano particle to pebble stone. The technologies on offer comprise laser diffraction, dynamic light scattering, static and dynamic image analysis as well as mercury intrusion porosimetry and gas adsorption for the determination of surface area and pore size distribution.

BELSORP MAX G

Gas Adsorption Analysers

Microtrac MRB’s portfolio includes analysers for the determination of specific surface area and pore size distribution. The instruments use gas and vapour adsorption technology to analyse both porous and non-porous powder materials.

The latest model BELSORP MAX G is a high-performance, compact, and economic model which is a one port analyser dedicated for gas adsorption.

BELSORP MAX G is a specialised instrument for the measurement of micro to meso-macro porous/nonporous materials (BET specific surface area/pore-size distribution).

The new developed AFSM2 method enables BELSORP MAX G to operate without the need for Helium gas.

Features

• BET and PSD from micro to meso and macropores by gas ads, measurement of N₂, Ar
• Low BET specific surface area by Kr gas measurement at 77.4K
• High performance PSD analysis by GCMC・NLDFT in BELMaster Ver.7
• Actual and short time evaluation for each adsorption point by gas dosing optimisation function
• No Helium gas needed for the measurement of adsorption isotherms and NET adsorption measurement by new AFSM2.

Application examples

Used in various fields such as catalysts, batteries (all-solid-state batteries, fuel cells, etc.), fibres, polymer materials, chemicals, pigments, cosmetics, magnetic powder, separation membranes, filters, toner, cement, ceramics, semiconductor materials, etc.

BELPYCNO L

Gas Pycnometer

Fully automatic gas pycnometer instrument for the determination of volume and density from powders, granulates, porous solids and liquids. Due to an internal thermal stabilisation the instrument measures independent from ambient temperatures between 14°C and 40°C.

The BELPYCNO L pycnometer is equipped with up to 3 reference chamber volumes (20, 40 and 60 cc) to give the best performance in combination with the chosen sample chamber (4, 20, 40, 60, 100 and 135 cc). Independent of ambient temperature and pressure variations, the BELPYCNO L allows measurements which are not limited by time consuming calibration procedures.

Once calibrated the pycnometer carries out the analysis without any concerns. No contamination risks due to gas loading from reference chamber (high pressure) into sample chamber (low pressure), supported by programmable discharge restriction and easy use of paper filters.

Variable loading pressure permits the analysis of foams and compressible samples.

Features

• Built-in fine powder option
• Programmable discharge restriction and easy use of paper filters to prevent powders dragging by pressure drop, thus reducing maintenance.
• Gas loading from reference chamber (high pressure) into sample chamber (low pressure)
• No contamination of reference chamber with fine powders or condensed liquids. Feature of variable loading pressure permits the analysis of foams and compressible samples.
• Built-in multi volume capability
• Easy choice of the best configuration according to sample volume and nature In addition, for each measurement step the computed volume and density are displayed in situ. No requirement for instrument modifications.
• Built-in linearized absolute pressure transducer
• Independent of ambient pressure fluctuations from climate or in low-pressure labs.
• Sample cell and reference volumes separated from the electronics
• Unit can be installed in a glove box e.g. for use with radioactive samples
• Built-in accurate atc (automatic temperature control)
• Constant temperature independent of ambient fluctuations maintenance free. No external thermostat necessary. Various temperatures possible

BELPORE

Mercury Intrusion Porosimetry

The knowledge of porosity, pore sizes and pore volume is of fundamental importance for the characterisation of porous materials. Mercury intrusion porosimetry (MIP) is the most widely used method for determining the pore size distribution of accessible macro- and mesopores in solids.

The technique is based on the pressure-dependent intrusion of mercury as a non-wetting liquid into a porous material. Using the Washburn equation, the corresponding pore size is calculated from the applied pressure.

Microtrac MRB, as a provider of state-of-the-art solutions in the field of particle characterisation and gas adsorption, has now expanded its extensive portfolio with a series of devices specifically for the field of mercury porosimetry. The BELPORE series consists of state-of-the-art instruments for measuring pore size distribution, pore volume, specific pore surface area, density and particle distribution of finely divided and porous materials.

The BELPORE mercury porosimeters from Microtrac MRB reliably and reproducibly measure pore diameters from 1 millimeter to 3.6 nanometers at 414 mega-Pascals. “Pascal” is not only a pressure unit, but also stands for the equilibrium-controlled and optimised handling of the pressure build-up through the so-called ‘Pressurization by Automatic Speedup and Continuous Adjustment Logic’, or P.A.S.C.A.L. for short. This automatic control is regulated by the real pore system and permits shorter measuring times under guaranteed equilibrium conditions as well as the detection of all pores within the specification - and this with up to 20,000 measuring points per analysis. Since only three types of dilatometers are sufficient for all measurement tasks and neither gases nor liquid nitrogen are required, running costs can be kept significantly low. In addition, the BELPORE LP low-pressure porosimeter is easy to use and has an extended measuring range up to pore sizes of 1 mm. The vertical degassing and filling with mercury on the BELPORE LP allows the degassing pressure to be adjusted, making it possible to measure moist samples without changing the moisture content of the material. In this way, even moist concrete samples and solvent-containing porous green bodies can be measured unaltered. The mercury porosimeters from Microtrac MRB are available for different pore ranges:

• BELPORE LP Mercury Filling Station and Measurement of Macropores (1,000 - 3.25 μm)
• BELPORE MP Measurement of Macro- & Mesopores (15 - 0.0065 μm)
• BELPORE HP Measurement of Macro- & Mesopores (15 - 0.0036 μm)

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