NANOFIBROUS POLYMER MATERIAL WITH HIGH STRENGTH PROPERTIES AND RESISTANCE TO UV RADIATION Russian patent published in 2019 - IPC D01F6/62 

FIELD: nonwoven materials.

SUBSTANCE: invention relates to non-woven polymer nanofibre materials based on polyhydroxybutyrate, used for filtration of various media, cultivation of living cells, creation of porous matrices for controlled release of medicinal preparations. Described is a non-woven polymer nanofibre material for filtration based on polyhydroxybutyrate, obtained from a molding solution containing as a process additive a tetrabutylammonium iodide salt dissolved in a mixture of chloroform and formic acid in concentration of 1 g/l; material is characterized by that the molding solution contains nanosized silicon carbide, which is a single-phase polycrystalline and consisting of synthetic carborundum (SiC) with a moissanite structure of polytyl 6H with average particle size of 34±3 nm in amount of 0.1–1.5 wt. %.

EFFECT: high strength and resistance to UV radiation of the polymer non-woven composite material.

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