Mann+hummel Gmbh

Nico Behrendt

Anton Kreiner

Bjoern Schmid

Stefan Orendt

Heiko Brosi

Sylvia Beier-Moys

Maximilian Steinbrunner

A filter medium for removing metallic particles, in particular for liquid filtration, is provided. The filter medium is comprised of a substrate, an adhesive layer containing magnetic particles applied onto the substrate, and at least one nanofiber layer arranged on the adhesive layer.

Magnetic filter medium and method for its production

A filter medium, in particular for air filtration, is provided with a substrate and at least one nanofiber layer applied onto the substrate. The nanofiber layer has cavities in or between the nanofibers. In a method for producing the nanofiber layer, a spinning solution for electrospinning from a polymer solution by a spinning electrode and a counter electrode is provided, wherein electrical voltage is applied to the spinning solution and air is passed through the spinning solution. The nanofibers produced by the spinning electrode are deposited onto the substrate that is moved past the counter electrode.

Nanofiber coating, method for its production, and filter medium with such a coating

In a method for producing a polyamide nanofiber product that contains PTFE particles, a spinning solution containing polyamide, PTFE, and a conductivity-increasing additive is provided and nanofibers are produced by electrospinning from the spinning solution. The conductivity-increasing additive is an acid-resistant additive; a surfactant additive; or an acid-resistant and surfactant additive and contains one or more organic salts. The polyamide nanofiber product with PTFE particles is used in filter media and is especially applied to a filter layer of cellulose or synthetic material.

Method for producing a polyamide nanofiber product by electrospinning

A method for electrostatic spinning of thermoplastic polymers for obtaining nano and microfibers, is introduced. The method if characterized by the following steps: solving the thermoplastic polymer in a corresponding solvent; adding a thermoplastic elastomer (TPE) to this solution, and introducing the solution into an electric field and spinning under the effect of the electric field to nano and microfibers.

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Wolfsburg, Germany

Nico Behrendt