Nanofibers are high-tech fibers with a diameter that less than 500 nm (1 nm = 10-9 m). Researchers all over the world are looking for new ways of its usage in all possible application fields. Nanofibers often become a unique deeply integrated component of the end products.
We are working both customers and researchers in order to show you in what way nanofibers can improve end products, and also be used to develop completely new materials and find new application areas.
Nanofibrous materials are employed in a very interesting set of end products. The following examples demonstrate only some of the applications of the end-products that benefit from the use of nanofibers:
- liquid filtration
- functional clothing
- acoustic engineering
- battery separators
- inorganic materials
In general, there are several ways of nanotechnology material creation: electroforming, self-assembly, synthesis on templates, electric blowing, power spinning, melt forming and some other ways that are less developed and widespread. Nowadays the only commercial process of nanofibers creating is electroforming, and for the accomplishing of this method we use a polymer solution and a source of high uninterrupted power distribution. Filtering material are a structure of polymer fibers of one or more set point diameters with the distribution over these fibers either over layers or in a related ratio throughout the material. The material can be made from one polymer fibers or from a mixture of fibers which obtained from various polymers, as well as from polymers containing plasticizing, hydrophilizing and other additives. Materials can be made in the form of canvases of size 900x1500 mm, 680x1500 m, rolls up to 700 mm wide and tapes 25-60 mm wide. If this occurs, the materials can be plot on substrate of gauze, fiber-bonded cloth (from polypropylene, polyesters, etc.) or to a substrate which is formed during the production of the material and consisting of thick, bonded polymer fibers.
In the filtering polymeric materials manufacturing, polymers are used to make it possible to obtain the required mechanical, thermal, chemical, and filtering properties. Our company produces or produced materials, which made from perchlorovinyl, polystyrene, styrene-acrylonitrile copolymer, polytrifluorostyrene, polysulfone, cellulose acetate, polyarylate, some fluoroplastics and phenol-formaldehyde resins.
Existing technologies and equipment make it possible to obtain homogeneous fibers or their mixtures with fiber diameters from 0.1 to 10 μm. The range of surface densities of materials is from 10 to 300 g / m2, for this purpose the packing density of the fibers is 2-10%.
In the process of the fibers forming, the materials acquire a stable electrostatic (electret) charge, which, in combination with the fiber diameter, determines the high filtration efficiency.
In terms of filtering materials produced by our company, highly effective aerosol filters have been created, incl. in the protection against radioactive and toxic aerosols, filters for liquids, separators for chemical sources of current.
One of the main application areas of our materials is the production of highly effective respiratory protective equipment - respiratory masks.
Our production has not stopped for more than 20 years and we remain the leader in the manufacturing of nanofibers in the CIS and Baltic countries. We supply nanofibers to more than 25 countries and we always keep an open mind to have new business relations with our future partners.
Filtering polymer materials FPMFor the production of RPE, aerosol filters, filters for the complex purification. The material is resistant to the dilute acids, alkalis, alcohols, hydrocarbons, glycerine, oils, petroleum products and fresh water, the temperature limits of operation is from -30 to + 70 ° C.
Filtering materials based on perchlorovinylFor the aerosol filters production. Materials are resistant to strong acids and alkalis, alcohols and saturated hydrocarbons. They can be used for catching fogs, oils, acids. Can operate at temperatures limits from -200 to + 60 ° C.
Filtering material FPP-3 / 20-3.0Generally intended for the production of ultrafilters for the fine cleaning of liquids from mechanical impurities. It poses a homogeneous layer of a mixture of perchlorovinyl fibers 0.2-0.3 μm in diameter and fibers with an mid-diameter of 1.5-2.5 μm at a ratio of the lengths of fine and thick fibers of at least 20: 1. Operating temperature range from -60 to + 60 ° C.
Filtering material FPP - D (damper)It is intended for the equipment of valve and damper devices of pneumatic-automatic systems, for the fine air and gases cleaning, for analytical filters manufacturing.
Filtering material FPP - D – 4For fine cleaning of liquids, fuel, oils, incl. aviation, suspended particles, mechanical impurities. It can be used for fine air and gases cleaning. It can be also used for the production of separation barriers in acid batteries, Temperature range from - 250 to + 60 ° C.
Filtering material type FPP-JFor cleaning alcohols, acids, alkalis from suspended particles at a temperature of -60 to + 60 ° C.
Filtering material "Porophil" J - 5/206Designed to remove suspended particles larger than 5 μm from injectable drug solutions. It is used as a filtering partition in industrial installations of fine filtration of medical products at temperatures up to + 60 ° C.
Filtering material "Porophil" J-1/207It is intended for fine cleaning of perfume liquids, alcohols, saturated hydrocarbons, oils, acids, technical and deionized water and aqueous solutions of substances and also from mechanical impurities.
Heat-resistant filter material FPAR-15-1.5It is used to equip industrial filters for fine cleaning, process gases and air, for producing analytical filters which are used at temperatures of -200 to +250 ° C. Material which is made of polyarylate F-2 and hydrophilic, resistant to dilute acids and alkalis, alcohols and ketones.
Filtering material FPSF-15-1.5It is used for the fine air cleaning from aerodisperse impurities, incl. microorganisms, bacteria, viruses. It is also can be used in fine air and gas filters, analytical filters, etc. The material is made of polysulfone and can withstand treatment (sterilization) with hot steam at a temperature of up to 120 ° C. The material is resistant to the weak acids and strong alkalis, limiting hydrocarbons, oils.
Perchlorovinyl separation materialsIt is used for the production of separating partitions in alkaline current sources. One of the materials brand is produced with a hydrophilizing additive. It is used at temperatures from - 180 ° С to + 60 ° С.
Perchlorovinyl separating napkinsSize-defined, pressed separation materials in the form of napkins with a specified thickness in the range of 40 - 100 μm and undergone sensitized processing. Napkins are resistant to acids, alkalis, solutions of salts, alcohols. Withstand long-lasting action (for 10-15 years) of concentrated aqueous solutions of alkalis (up to 40%) in the presence of oxidants. The operating temperature is from-180 ° C to + 75 ° C.
Polysulfone separating napkinsIt is resistant to concentrated nitric and hydrochloric acids, sulfuric acid with a concentration of up to 60%, concentrated alkalis, solutions of salts, alcohols. The operating temperature is from-180 ° C to + 120 ° C.
Filtering analytical belts NEL-3, NEL-4, LFS-2Strips of filtering material with a width of 25 or 50 mm with fixed edges up to 50 m long. They are intended for sampling of aerosols, incl. radioactive, with solid particles in order to measure the quantity, properties and composition of the captured dispersed phase in continuously operating devices.
Sorption - filtering belts SFL-2I-50 and SFL-2R-50Contain highly disperse chemosorbent and are intended, depending on the type of sorbent, for the sampling of aerosols and iodine vapors followed by measurement by radiometric devices, or for sampling of aerosols and mercury vapor fallowed by measurement of mercury content.
Aerosol analytical filters – AFAFor the analysis and aerosols control:
- radioactive, toxic and bacterial in the air working area, industrial premises, in the surface layer of the atmosphere;
- radioactive, toxic and bacterial, which are in ventilation and technological air (gas) flows;
- for monitoring the efficiency of gas cleaning devices and both for the individual and collective protective gear against aerosols, filtering devices.
- for research and development work in the field of aerodisperse systems.
Fuel quality indicatorsFor the express analysis of aviation fuel for the presence of water and mechanical impurities within the mass fraction of water 0.001-0.003% and impurities 0.0002-0.0003%
Disposable dust-protection half-maskIn the protection of solid aerosols 1,2 and 3 classes according to the Russian standard ("Petal-200, 40, 5"), 2 classes according to the European standard EN 149, release of respirators of the 1st and 3rd protection classes according to the Eurostandard is possible.
Disposable gas-dust protective half-masks in the protection of aerosols and the following gases of the following grades: for protection against organic solvents vapors
for protection against acid gases, mainly from hydrogen fluoride
for protection against mercury vapors
for protection against ammonia vapors
Anti-aerosol replaceable filtersFor dust - protective half-masks of large dust-type RPA - in the form of a corrugated truncated cone.
Hearing protective equipment «earplug»Earplugs which are made of noise-absorbing material.
Here are some photos from our FFP(filtering face piece particles) and nanofiber manufacturing plant.