gas permeability

Obviously what can be obtained from minipermeameter measurement is gas permeability.

Porous materials can break the strength-density trend, or even afford greater gas permeability.

Or they can reduce the gas permeability of the dome to zilch and just let us breathe ourselves into a coma.

The gas permeability coefficient of the cyanobacterial gas vesicle wall.

The gas permeability is determined by the equation:

Nanocomposites could increase or decrease gas permeability of different fillers as is needed for different products.

Other key benefits include excellent resistance to aging and ozone, very low gas permeability and the fact that the materials are self-extinguishing.

In one example the large, in-plane polymer crystals reduce the gas permeability of nanolayered films by almost 2 orders of magnitude.

Among other reported techniques the most useful include differential thermal analysis, dielectric loss measurements, X- and β-ray absorption, and gas permeability studies.

Barrer is a non-SI unit of gas permeability (specifically, oxygen permeability) used in the contact lens industry.

Meat and fish need very low gas permeability films so for non-respiring products (e.g. meat, fish, cheese), high barrier films are used.

That makes it possible to tailor an entire batch so that it provides, say, the consistent gas permeability needed to let fabrics or fresh-food packaging breathe.

Gas permeability of reservoir rock and source rock is important in petroleum engineering, when considering the optimal extraction of shale gas, tight gas, or coalbed methane.

When selecting packaging films (web substrates) for EMAP of fruits and vegetables the main characteristics to consider are gas permeability, water vapour transmission rate, mechanical properties, transparency, type of package and sealing reliability.

These bubble nuclei are spherical gas phases that are small enough to remain in suspension yet strong enough to resist collapse, their stability being provided by elastic surface layer consisting of surface-active molecules with variable gas permeability.

They have high gas permeability: at room temperature (25 C), the permeability of silicone rubber for such gases as oxygen is approximately 400 times that of butyl rubber, making silicone useful for medical applications in which increased aeration is desired.