| 摘要 |
FIELD: medicine.SUBSTANCE: invention refers to preparing protective materials on the basis of diffuse polymer membranes, as well as to compositions for preparing them. The protective diffuse polymer membrane is made of a composite material containing polyamidoimide and polyvinylpyrrolidone in the following proportions (wt %): polyamidoimide - 30-70, polyvinylpyrrolidone - 70-30 and has a thickness of 10-300 mcm. Polyamidoimide has the following bond formula:. The membrane is presented either in the form of a film, or in the form of a coating. The composition for preparing the protective diffuse polymer membrane represents 10-20% polyamidoimide and polyvinylpyrrolidone in a aprotonic polar solvent in the following proportions (wt %): polyamidoimide - 30-70, polyvinylpyrrolidone - 70-30.EFFECT: declared polymer membrane protects against the toxic and hazardous chemical substances in the form of vapours, aerosols and liquids, and is characterised by high vapour permeability (not less than 2500 g/ma day) to provide the protective environment comfort.5 cl, 1 dwg |
