FIELD: textile, paper.
SUBSTANCE: invention relates to fibrous filtering materials. Filtering fibrous material is proposed which is produced by electrostatic formation from a solution of polymer mixture - sterol copolymer with acrylonitrile and polyurethane with their weight relation of (50-95):(50-5) respectively, diametre of 1-10 mcm; the material is characterized by the unit area weight of 2070 g/m2 and aerodynamic resistance of 3-30 Pa under the air flow speed of 1 cm/s. Method of the material production and respiratory personal protective gear made from it are proposed as well.
EFFECT: providing for effective filtering material with improved physical and chemical parametres.
5 cl, 1 dwg, 2 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
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|
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|
RU2182510C1 |
| FILTERING MATERIAL AND METHOD FOR ITS PRODUCTION | 2007 |
|
RU2349369C1 |
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|
RU2248838C1 |
