[InRedox] Anisotropic AAO Membranes

[InRedox]  Anisotropic AAO Membranes

 

Description

The general range of pore geometries available for anisotropic anodic alumina membranes.

 PARAMETERAVAILABLE RANGE*SUPPORT LAYERACTIVE LAYER

Pore Diameter, nm	2 – 300	100±15	2, 5, 10, 20, 50, 100, 200 (±10% + 2)
Thickness, µm	20 – 200	60±2 (OD 10 to 25 mm) 100±4 (OD 47 mm) 150±10 (OD 90 mm)	1.5-2.5 µm (standard) 1-10 µm (custom)
Pore Density, cm-2	1012 – 108	2·109	depends on the pore diameter
Porosity, %	1 – 60	15 – 30 (typically 20)	10 – 15

 

MEMBRANE SIZEMEMBRANE THICKNESSPORE DIAMETER IN ACTIVE LAYER

10 mm diameter, 13 mm diameter, 25 mm diameter, 47 mm diameter, 90 mm diameter

60 µm (for OD 10 to 25 mm), 100 um (for OD 47 mm), 150 µm (for OD 90 mm only)

2-4 nm, 5 nm, 10 nm, 20 nm, 50 nm, 100 nm

 

 

Anisotropic Ceramic Membranes from self-organized nanoporous alumina (also known as Anodic Aluminum Oxide or AAO) contain two layers with different pore structure integrated into a monolithic membrane:

Support Layer –  spans most of the membrane thickness and contains large uniform pores with porosity of up to 50% to provide mechanical strength and high  permeance.

Active Layer – a thin layer of AAO with highly uniform monodisperse pores to enable highly selective size-based (2 to 100 nm) separation with very sharp molecular weight cutoff, suitable for nano- and ultrafiltration applications.