Mercury Intrusion Porosimetry (MIP) Testing Service

Mercury Intrusion Porosimetry (MIP) is a state-of-the-art technique employed to characterize the porosity, pore size distribution, and pore volume of solid and powder materials. This method is widely recognized for its precision in determining the microstructural properties of materials, which are critical in various scientific and industrial applications.

Principles of Mercury Intrusion Porosimetry (MIP) Testing

The scientific principle underlying MIP is the non-wetting behavior of mercury with respect to most solid materials. Mercury, due to its high surface tension and low wetting affinity with solids, requires an external pressure to intrude into the pores of a material. As the pressure increases, mercury fills pores starting from the largest down to the smallest. The relationship between the applied pressure and the size of the pores filled is described by the Washburn Equation, which relates the pressure to the pore diameter using the surface tension of mercury and the contact angle between mercury and the material.

Advantages of Mercury Intrusion Porosimetry (MIP) Testing

MIP offers several advantages over other porosity testing methods:

• Comprehensive Analysis: MIP provides a detailed analysis of both through-pores and closed-end pores, offering insights into intra-particle and inter-particle porosity.
• Wide Applicability: It is suitable for a broad range of materials, including catalysts, pharmaceuticals, and geological samples.
• High Resolution: The technique can resolve pores in the size range from micrometers down to nanometers.
• Standardization: MIP is recognized by international standards, ensuring the reliability and comparability of test results.

Our Services

At CD BioSciences, we pride ourselves on offering a cutting-edge MIP testing service that leverages the latest technology to deliver accurate and reliable results. Our service is tailored to meet the specific needs of our clients, providing them with a comprehensive understanding of their materials' pore structure.

Methods of Mercury Intrusion Porosimetry (MIP) Testing

The MIP testing process at CD BioSciences involves several steps:

Sample Preparation

Samples are carefully prepared to ensure they are free from any contaminants that might affect the test results.

Pressure Application

We apply a controlled pressure to force mercury into the sample's pores, starting at low pressures and gradually increasing.

Volumetric Measurement

The volume of mercury intruded at each pressure increment is measured, providing data on the pore size distribution.

Data Interpretation

Using the Washburn Equation, we convert the pressure-volume data into pore size distribution curves.

Sample Requirements

For MIP testing, the following sample requirements must be met:

• Solid Samples: Materials such as rocks, cement, and concrete require a minimum of 1.5-2g.
• Film and Thin Materials: A volume of at least 1cm³ is needed.
• High Porosity Samples: For materials like aerogels and sponges, approximately 0.1g is sufficient.
• Powder Materials: The volume of accumulation must be greater than 1cm³.
• Sample Size: Samples must fit within the sample cell, which is typically a cylinder with a diameter and height of 1cm or 2.5cm.

Our Workflow

By choosing CD BioSciences for your MIP testing needs, you gain access to a service that is not only scientifically rigorous but also committed to delivering actionable insights that can inform material development and optimization. If you are interested in our services, please contact us for more information.

Our products and services are for research use only and cannot be used for any clinical purposes.