Sterlitech™ Silver Metal Membrane Benefits and Features
Excellent Chemical and Thermal Properties:
Sterlitech™ Silver Metal Membranes have the chemical inertness
and high thermal stability of pure silver. The membranes resist
alcohols, fuels, and other hydrocarbons including halogenated hydrocarbons,
natural and synthetic oils, alkalies, cryogenic fluids, photo-resists,
ethers, propellants, oxidizers, esters, most organics and acids
making them ideal for industrial hygiene tests. Silver Metal Membranes
provide excellent filtration performance at temperatures up to 427°C
(800°F). The membranes can be autoclaved, steam or hot air sterilized
a number of times without losing effectiveness.
Molecularly Bonded
Filter Media: Sterlitech™ Silver Metal Membranes are
formed by a reaction bonding mechanism that transforms a suspension
of amorphous silver into a strong, homogeneous crystalline network
of porous silver. They are the only molecularly bonded metal membranes
available; all other metal filters are sintered.
Non-Absorptive -
Non-Adsorptive: Adsorption and absorption by Sterlitech™
Silver Metal Membranes are virtually nonexistent due to the chemical
and biological inertness of pure silver, and the smooth, regular
shape of the silver media.
Intrinsic Bacteriostatic
Nature: The intrinsic bacteriostatic property of silver
does not allow the growth of bacteria and other microorganisms.
Surface Retention:
The flat, smooth surface of Silver Metal Membranes allows for true
surface capture. Performance tests show that the absolute particle
retention of Sterlitech™ Silver Metal Membranes is achieved
by mechanical sieving in the filter structure. Thus, particle retention
by the filter membrane is independent of variable molecular forces,
such as adsorption.
Economical and Reusable:
Sterlitech™ Silver Metal Membranes are usually more economical
than disposable filters because the Silver Metal Membranes can be
used several times after chemical or ignition cleaning. In addition,
the basic price of these membranes is not as high as one might expect,
the amount of silver is relatively small because the membrane is
approximately 60 percent open space.
No Fiber Release
- No Media Migration: Sterlitech™ Silver Metal Membranes
are fiber-free and feature virtually no media migration because
they are strong, uniform, porous monolithic structures consisting
of metallic crystals. Conventional polymeric membranes and other
lab filters often shed fibers and other parts of the media so the
filter itself contaminates the filtrate.
High Flow Rates:
Sterlitech™ Silver Metal Membranes are extremely thin (50 µm
or 0.002 inch). This feature, plus a high porosity of 60 percent
open area, provides exceptionally high flow
rates.
View Silver Metal Membrane Retention
and Flow Rates
Sterlitech™ Silver Membrane pricing
chart.
Silver membrane application examples.
Frequently asked questions about silver membranes.
|
