Porosimetry / Pore Volume Densometers and Porosimeters
Description
Porosimetry and pore volume densometers, including porosimeters, are instruments used to measure the porosity and air permeability of materials. A porosimeter gauges the air flow through a substance, while a densometer measures the time it takes for a known volume of air to pass through a specific area of material. These devices provide critical data on the flow characteristics of materials, which is essential for understanding their structural and functional properties.
Working Principle
Porosimeters operate by measuring the flow of air through a material, typically in cubic feet per minute per square foot. This measurement helps determine the material's porosity and permeability. Mercury porosimetry is a common technique where mercury is forced into the pores of a material under pressure, and the volume of mercury that penetrates is used to calculate pore size and distribution. This method provides detailed information about total pore volume, pore area, and pore diameters. Densometers, on the other hand, measure the time required for air to pass through a material, providing insights into its permeability.
Applications
Porosimeters and densometers are widely used in industries such as textiles and plastics, where understanding the air permeability of materials like breathable fabrics or absorbent felts is crucial. In the oil and gas industry, these instruments are used to assess the porosity of petroleum reservoirs, which is vital for evaluating reservoir capacity and extraction efficiency. Additionally, nuclear densometers are employed in construction to measure soil moisture and compaction, providing data critical for infrastructure development.
Advantages over other Densometers and Porosimeters
Mercury porosimetry offers a comprehensive analysis of pore structure, providing detailed data on pore volume distribution and size. This method is advantageous for its ability to deliver precise and extensive information about a material's porosity, which is not typically available through other densometry techniques. The use of mercury allows for the measurement of very small pores, which is beneficial for materials with fine porosity.
Limitations
One significant limitation of mercury porosimetry is its dependency on pressure, which can affect the accuracy of the measurements. The technique requires careful handling of mercury, a toxic substance, which poses environmental and safety concerns. Additionally, the method may not be suitable for materials that deform under pressure, as this can lead to inaccurate results.
Considerations
When considering porosimeters and densometers, initial costs and operating expenses should be evaluated, as these instruments can be expensive to purchase and maintain. The durability and accuracy of the devices are crucial factors, especially in industrial applications where precise measurements are necessary. Replacement and maintenance costs should also be considered, particularly for mercury porosimeters, which require careful handling and disposal of mercury.
from Gurley Precision Instruments
GENUINE GURLEYTM Cobb Sizing Testers have been manufactured by Gurley for over a half-century and represent an economical and practical means of determining liquid absorptiveness or resilience of treated and untreated papers, boards, fabrics and other sheet materials. The complete kit consists of... [See More]
- Properties Analyzed: Porosimetry / Pore Volume
- Methods, Technology & Standards: Roller method
- Test Media: Paper; Textiles
- Display & Special Features: Benchtop or Laboratory
from CIQTEK Co., Ltd
EASY-V 1220 is the BET specific surface area and pore size analysis instrument developed independently by CIQTEK, using the static volumetric method. ▪ Specific surface area testing, range 0.0005 (m2/g) and above. ▪ Pore size analysis: 2 nm-500 nm. ▪ Two analysis stations,... [See More]
- Properties Analyzed: Porosimetry / Pore Volume
- Test Media: Powders; Battery Materials, Petrochemical Industry, Medicine, Environmental protection materials, Nanomaterials
from Meter Group
The Leaf Porometer fits in your hand and in your research budget. Most commercially available porometers are large, complex, and costly. Decagon's new Leaf Porometer was designed by an agronomist who appreciated the simple porometers he used in his early career. The result is a sleek, innovative,... [See More]
- Properties Analyzed: Stomatal Conductance; Porosimetry / Pore Volume; LiquidPermeability
- Display & Special Features: Digital; Handheld, Portable or Field; PC Interface / Networkable
- Test Media: Plants
from Quantachrome Instruments
The PoreMaster ® GT Series —. fully automated, high-performance mercury porosimeters that offer two high-pressure and two low-pressure analysis ports to meet the pore size measurement needs of the busiest laboratories. In addition to "two samples in a single loading, " (patented)... [See More]
- Properties Analyzed: Densometry / Pore Size; Porosimetry / Pore Volume
- Display & Special Features: Benchtop or Laboratory; PC Interface / Networkable; SPC Software or Capability
- Test Media: Powders; Powders, Bulk Solids
from Micromeritics
High Performance in a Compact Footprint. Accurate and precise surface area and porosimetry measurements are essential to the determination of the effectiveness and quality of a wide variety of materials. The Micromeritics ASAP 2020 integrates multiple gas sorption techniques into a single,... [See More]
- Properties Analyzed: Porosimetry / Pore Volume
- Methods, Technology & Standards: Gas Sorption Technique
- Test Media: Adhesives/Sealants; Ceramics; Chemicals; Food / Beverage; Metals; Powders; Catalyst
- Display & Special Features: Benchtop or Laboratory; PC Interface / Networkable
from CIQTEK Co., Ltd
EASY-V 1440 is the BET specific surface area and pore size analysis instrument developed independently by CIQTEK, using the static volumetric method. ▪ Specific surface area testing, range 0.0005 (m2/g) and above. ▪ Pore size analysis: 2 nm-500 nm. ▪ Four analysis stations,... [See More]
- Properties Analyzed: Porosimetry / Pore Volume
- Test Media: Powders; Battery Materials, Petrochemical Industry, Medicine, Environmental protection materials, Nanomaterials
from Quantachrome Instruments
The PoreMaster series consists of three automatic mercury intrusion porosimeters offering new concepts in automated pore size analysis.The PoreMaster 33 porosimeter achieves a maximum pressure of 33,000 psia for pore size measurements in the range from over 1100* micron to 0.0064 micron pore... [See More]
- Properties Analyzed: Porosimetry / Pore Volume
- Display & Special Features: Benchtop or Laboratory; PC Interface / Networkable; SPC Software or Capability; Video
- Test Media: Powders; Powders, Pellets, Bulk Solids
from Micromeritics
Micromeritics ASAP ® 2420 Accelerated Surface Area and Porosimetry System uses the gas sorption technique to generate high-quality data for applications that require high performance/high sample throughput. Standard features include six independently operated analysis ports and a programmable... [See More]
- Properties Analyzed: Porosimetry / Pore Volume
- Methods, Technology & Standards: Gas Sorption Technique
- Test Media: Adhesives/Sealants; Ceramics; Chemicals; Food / Beverage; Geological (Rock, Strata, etc.); Metals; Powders; Catalyst
- Display & Special Features: Benchtop or Laboratory; PC Interface / Networkable
from Quantachrome Instruments
Water sorption behavior plays an important role in the development and use of many common and advanced materials. Some examples include: Stability of pharmaceutical excipients and drug actives. Drying and storage of grains. Texture and shelf life of food products. PEM fuel cell components. Mortar,... [See More]
- Properties Analyzed: Porosimetry / Pore Volume
- Display & Special Features: Benchtop or Laboratory
- Test Media: Adhesives/Sealants; Ceramics; Concrete/Mortar; Food / Beverage; Powders; Textiles
from Micromeritics
Micromeritics ’ AutoChem 2950 HP Chemisorption Analyzer is an automated high-pressure catalyst characterization system that is capable of preparing and analyzing samples at elevated pressures up to 1000 psia and at temperatures from -100 to 1100 °C. The instrument can perform a variety of... [See More]
- Properties Analyzed: Porosimetry / Pore Volume
- Display & Special Features: Benchtop or Laboratory; PC Interface / Networkable
- Test Media: Partial Oxidation, Catalytic Cracking, Catalytic Reforming, Isomerization, Hydrocracking, Fischer-Tropsch Synthesis
from Quantachrome Instruments
The new QUADRASORB evo ™ Gas Sorption Surface Area and Pore Size Analyzer has been designed for flexibility, performance, accuracy, and modularity. It will adapt to your lab ’s evolving material characterization needs, both through the day, and over the years. If you start an analysis in... [See More]
- Properties Analyzed: Pore Distribution; Porosimetry / Pore Volume
- Display & Special Features: Benchtop or Laboratory; PC Interface / Networkable; SPC Software or Capability
- Test Media: Powders
from Micromeritics
The ASAP 2020 Plus Chemisorption option [ermits you to obtain valuable information about the physical and chemical properties of your catalyst, catalyst support, adsorbents, and other materials. It's unique design provides a high level of system cleanliness to permit low-pressure checmisorption... [See More]
- Properties Analyzed: Porosimetry / Pore Volume
- Methods, Technology & Standards: Multiple Gas Sorbtion Techniques
- Test Media: Adhesives/Sealants; Ceramics; Food / Beverage; Powders; Catalyst
- Display & Special Features: Benchtop or Laboratory; PC Interface / Networkable
from Quantachrome Instruments
INTRODUCTION. Autosorb ® 6iSA ™ surface area and pore size analyzer allows a researcher to get a 360 degree perspective of the complex material pore structure enabling a variety of analysis techniques including adsorption isotherms, desorption isotherms, single point BET, multi-point BET,... [See More]
- Properties Analyzed: Porosimetry / Pore Volume
- Display & Special Features: Benchtop or Laboratory; PC Interface / Networkable; SPC Software or Capability
from Micromeritics
The ASAP 2460 Surface Area and Porosity Analyzer incorporates a unique expandable system designed for high-performance and high sample throughput. The base ASAP 2460 is a two-port master control unit. For more throughput, additional two-port units can be connected to the master unit expanding the... [See More]
- Properties Analyzed: Porosimetry / Pore Volume
- Methods, Technology & Standards: Gas Sorption Technique
- Test Media: Adhesives/Sealants; Ceramics; Chemicals; Food / Beverage; Geological (Rock, Strata, etc.); Metals; Powders; Catalyst
- Display & Special Features: Benchtop or Laboratory; PC Interface / Networkable
from Quantachrome Instruments
Ideal for surface area and mesopore analysis, the iQ-AG is available in up to three-station versions and provides an easy upgrade path to high vacuum, low pressure and chemisorption capabilities should your needs change. Usable with nitrogen, argon, carbon dioxide and a host of other gases... [See More]
- Properties Analyzed: Porosimetry / Pore Volume
- Display & Special Features: Benchtop or Laboratory; PC Interface / Networkable; SPC Software or Capability
- Test Media: Powders
from Micromeritics
Micromeritics' TriStar II PLUS is a state-of-the-art instrument suited for use in both quality control and research .environments. Intended for laboratories that require high throughput and the highest quality data, it contains all the capabilities of the TriStar II with additional hardware and... [See More]
- Properties Analyzed: Porosimetry / Pore Volume
- Methods, Technology & Standards: Flowing Gas Method
- Test Media: Adhesives/Sealants; Ceramics; Food / Beverage; Foam / Porous Materials; Geological (Rock, Strata, etc.); Powders; Catalyst
- Display & Special Features: Benchtop or Laboratory; PC Interface / Networkable; SPC Software or Capability