MIP - Mercury Intrusion Porosimetry
Characterization of porosity, pore size distribution and bulk density by mercury intrusion under pressure.
O que é MIP
Uma técnica de análise avançada
Characterization of porosity, pore size distribution and bulk density by mercury intrusion under pressure.
What sets us apart
We don't hand over a spectrum. We hand over the interpretation.
Any lab can return peaks and numbers. Our report reads the data. Three differences define what we deliver — illustrated below with a real, anonymized case.
Multiple techniques, one integrated report
We don't hand back five loose reports. We cross-reference every technique's results into a single reading — each signal checked against the others — to reach an answer, not a pile of data.
- Contamination investigation — identifying and tracing the source of a foreign species.
- Performance degradation — explaining why a batch behaves outside expectations.
- New supplier validation — proving equivalence before switching.
3 LDPE batches · 4 techniques converge, NMR reveals the difference
In semicrystalline polymer systems, thermomechanical processing variables influence chain conformational dynamics¹. Solid-state NMR resolves chemical environments at the nanometer scale², sensitive to changes not detectable by XRD or FTIR³.
Technical justification anchored in the literature
Every technique choice and every inference in the report is backed by peer-reviewed literature — with citations in the text. The conclusion isn't loose opinion: it's a traceable argument, defensible in an audit and in front of the client.
- Numbered citations linking claim to source
- Official standards and methods referenced per analyte
- Auditable reasoning end to end
Conclusion and expert opinion
The report closes with a clear position, signed by the Principal Investigator: what the data shows, what can't yet be claimed, and the next step. It includes an honest caveat on the limits of inference — what separates a technical opinion from a guess.
- Explicit technical position, not just results
- Inference limits declared honestly
- Next-step recommendation signed by the P.I.
Four techniques confirmed equivalence; only the solid-state NMR revealed the subtle conformational change not distinguishable by conventional QC — a molecular signature consistent with the atypical filtration behavior.
Without the industrial line's parameters, no direct causal correlation can be established — a complementary step is recommended for elucidation.
Aplicações de mercado
Onde a MIP entrega resultados
Market Applications
FAQ
Frequently Asked Questions about Mercury Intrusion Porosimetry (MIP)
How does mercury intrusion porosimetry (MIP) determine pore size?
- MIP forces mercury — a non-wetting liquid that does not spontaneously enter pores — into a sample's pores under progressively increasing pressure. Because smaller pores require higher pressure to be filled, the relationship between applied pressure and mercury volume intruded (via the Washburn equation) yields a full pore size distribution.
What pore size range can MIP characterize?
- MIP typically covers a very wide range, from roughly a few nanometers up to several hundred micrometers, making it well suited to characterizing macropores and larger mesopores in one measurement — a broader single-technique range than gas adsorption (BET), which is generally better suited to smaller mesopores and micropores.
Besides pore size, what else does MIP measure?
- MIP also determines total pore volume, bulk (apparent) density, and — from the intrusion curve — information about pore connectivity and throat size, giving a fairly complete picture of a porous material's internal architecture in a single test.
Is MIP a destructive technique?
- Yes — because mercury is forced into the sample under pressure and the material becomes contaminated with mercury, MIP is considered a destructive technique, and the sample cannot be reused or recovered afterward; mercury-containing waste also requires proper handling and disposal.
When is MIP preferred over BET for pore characterization?
- MIP is preferred when the pores of interest are in the macropore-to-large-mesopore range, when total pore volume and bulk density are needed alongside pore size, or when a very broad size range must be characterized in a single measurement; BET remains the better choice for micropores and fine mesopores, and the two are often used together to cover a material's complete porosity profile.
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