| 摘要 |
FIELD: technological processes. ^ SUBSTANCE: invention is related to the field of fibrous filtering materials production. Materials are suggested from polystyrene and polymethyl methacrylate with fiber diameter of 1.5-3 mcm. Materials are produced by means of electrostatic moulding of fibres from polystyrene or polymethyl methacrylate solution in organic dissolvent, which is ethyl acetate or dichloroethane that have been previously purified till content of admixtures is not more than 0.001 wt %, at that polystyrene and polymethyl methacrylate prior to dissolution are purified till content of admixtures is not more than 0.01%, and electric moulding is realised in air medium, which is dust-free till particles content is not more than 0.01 mg/m3 and relative humidity of not more than 35%. ^ EFFECT: invention makes it possible to produce filtering easily-cindered materials that are efficient in analysis of gas mediums for inorganic aerosol admixtures. ^ 3 cl, 1 tbl, 2 ex |
