摘要 |
FIELD: technological processes; chemistry. ^ SUBSTANCE: method includes deposition of magnetite from solution of salts of bivalent and trivalent iron with solution of ammonium hydroxide, which contains 50 vol.% of organic dissolvent - acetone, flushing of prepared deposit with acetone, its stabilisation and resolution of obtained magnetic powder in polyethylsiloxane carrier with addition of alcohol solution of antioxidant additive of n-aminophenol. ^ EFFECT: higher colloidal and temperature resistance and increase of magneto-liquid seals running time. ^ 1 tbl, 3 ex |