| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to nitrile rubber, method of its obtaining and products, obtained from it. Claimed nitrile rubber contains structure repeat units of, at least, one ?,?- unsaturated nitrile and, at least, one conjugated diene, and has ion indicator in range 0-60 ppm×mole/g. Nitrile rubber is obtained by emulsion polymerisation. Obtained latex, which contains nitrile rubber, is subjected to coagulation, and then coagulated nitrile rubber is washed. Polymerisation is carried out in presence of, at least, one alkylthiolate. Before coagulation value of latex pH is set at level, at least, 6, and then is coagulated in presence of, at least, one magnesium salt. Temperature of latex before adding at least one salt of magnesium is set at value 45°C. Obtained nitrile rubber is applied for obtaining capable of vulcanisation mixtures, which contain claimed rubber, at least, one linking agent and, if necessary, additional target additives to rubbers. Capable of vulcanisation mixtures are vulcanised by casting with obtaining cast products.EFFECT: claimed nitrile rubbers have exclusive speed of vulcanisation, as well as exclusive properties of vulcanisates.24 cl, 13 tbl, 17 ex |
