Filtering discs

Technofilter offers a wide range of flat filters incorporating various polymer membranes for industrial and laboratory filtration as well as for microbiological, sanitary-epidemiological and physico-chemical analyses.

ММК microporous Сapron membranes

Description

ММК microporous Capron membranes are white porous films with a broad pore size range, produced by Technofilter's proprietary technology on the basis of Capron by wet casting.

Due to high porosity and controlled pore size, ММК membranes have high microparticle retention capacity and high filtration rate. ММК membranes meet the requirements to medical products and materials that are intended for long-term contact with blood and lymph (certificates No РОСС Ru.ИМ08.НО7715 and No РОСС Ru.ИМ13.НО2313).

Material

ММК membrane is a ‘hydrophilic' polyamide membrane made of Capron (Nylon-6). ММК membranes have a coarse cellular structure with thin microporous partition walls, which predetermines continuity of the structure and makes it strong and flexible in dry and wet conditions. 

Main applications

Technical characteristics and advantages

Standard diameter of discs, mm: 13, 25, 35, 47, 90, 142, 293. Optionally, customers can specify any disc diameter no more than 293 mm.

Operating conditions

 Example of order: ММК-020-293

MMPA⁺ (ММПА⁺)  microporous polyamide membrane with positive potential

For sanitary-virological control of water and sterilizing filtration of liquids

Description

A method has been developed for producing positively charged polyamide-based microfiltration membranes (specification No 9471-023-10471723-2006). The membranes exhibit increased sorption capacity with respect to viruses, coliphages and pyrogens and retain the functional characteristics of uncharged ММК membranes. ММПА⁺ polyamide microporous membranes with positive zeta potential are porous white films produced using Technofilter's proprietary technology on the basis of polyamide (Nylon-6).

ММPА⁺ membranes have a coarse cellular structure with thin microporous partition walls, which predetermines continuity of the structure and makes it strong and flexible in dry and wet conditions. Due to high porosity and controlled pore size the membranes display high retention efficiency with respect to microparticles at high filtration rates.

ММPА⁺ membranes withstand mechanical, chemical and thermal loads and are biologically inert. The membranes are readily wetted with water and various aqueous solutions. The membranes are stable in aqueous media with pH values of 3 to 14 as well as in most organic solvents. ММPА⁺ membranes incorporated into МFМ-0142 filter units have been tested and recommended by A.N.Sysin State Research Institute of Human Ecology and Environment Hygiene (Russian Academy of Medical Sciences) for sanitary-virological investigations of water in laboratories of research institutes and sanitary-and-epidemiological stations.

Material

ММPА⁺ membrane is a ‘hydrophilic' polyamide (Nylon-6) membrane with positive potential.

Pore size, μm: 0.1; 0.2; 0.45.

ММPА⁺ membranes meet the requirements to medical products and materials intended for long-term contact with blood and lymph (certificates No РОСС Ru.ИМ08.НО7715 and No РОСС Ru.ИМ13.НО2313).

Main applications

Characteristics and advantages

Diameter of standard discs, mm: 13, 25, 35, 47, 50, 142, 170, 293. Optionally, customers can specify any disc diameter no more than 293 mm.

Example of order: ММPА⁺-020-142

МFFК/МFFК.G hydrophobic and hydrophilic fluoroplastic microfiltration membranes

Description

МFFК (МFFК.G) fluoroplastic composite membrane is a porous film material based on Ф42Л fluoroplastic (tetrafluoroethylene/vinylidene fluoride copolymer) reinforced with various non-woven materials (polypropylene, Lavsan (Dacron)), having pores 0.05, 0.15, 0.25, 0.45 or 0.65 μm in size and total porosity of 80 to 85%.

Applications

Technical characteristics and advantages

When used for filtration of aqueous solutions, the membranes should be pretreated with aliphatic alcohols or their aqueous solutions

Disc diameters, mm: 13, 25, 35, 47,  50, 90, 142, 293

Operating conditions

Operating characteristics of hydrophobic membranes 

Operating characteristics of hydrophilic membranes

Example of order: MFFK (МФФК)-025-142

MFFK.G (МФФК.Г)-045-293 

Filter cardboards

KFBZG (КФБЖ) cardboard for filtration of biological fluids

Description

КФБЖ glass fibre cardboard is used for prefiltration of biological fluids having a high level of particle detachment. This is a depth filter that significantly reduces the load on membrane filters. The prefilter made of glass fibre is installed in the filter holder directly on top of the membrane filter and is intended for prefiltration of heavily contaminated solutions. КФБЖ filters are sterilized by autoclaving at 121°C.

Main applications

In biopharmaceutical industry for prefiltration of:

Technical characteristics and advantages

Material

Cardboard based on microfibres of glass and cellulose.

Diameter of standard discs, mm: 13, 25, 35, 47, 50, 90, 142, 170, 293. Optionally, customers can specify any disc diameter.