COMPOSITION FOR PREPARING OF MICROPOROUS MATERIAL AND A METHOD OF MICROPOROUS MATERIAL PREPARING

摘要

Usage: separators in standard batteries, separation membranes, filter elements in air filters. Essence: composition includes,%: ultra high molecular weight polyethylene 9.0-15.0; dioctyl phthalate 50.0-67.5; Aerosil 22.4-34.0; carbon black 0.2-0.6; calcium stearate 0.2-0.6; sulfa-nol 0.1-0.2 and dimethyldi-beta-naphthylamino-phenoxy) silane 0.2-0.4. The material is obtained by preliminary mixing the powdered components, introducing dioctylphthalate, stirring at 55-65 ° C, extruding the mixture and calendaring the resulting material at 90-110 ° C. Extraction of dioctyl phthalate is carried out with methylene chloride. The tensile strength after extraction of 87.5-148.8 kgf / cm, elongation of 70.9- -105.0%. Electrical resistance 0.06-0.07 Ohm.cm, extraction time 15 min, bulk porosity 78-83%. 2 sp.p. f-ly, 2 tab.