Описание материалов:
KER® 1789 is a grade of oil extended styrene-butadiene rubber. It is produced by a technology of cold emulsion copolymerization based on soaps of rosin and fatty acids and contains 40.0% of chemically bonded styrene. It is coagulated by a system of acid and synthetic coagulant, contains 27% (37.5 PHR) of extender oil with reduced content of polycyclic aromatics (RAE grade) and is stabilized by a staining antioxidant.
APPLICATION
KER® 1789 is appropriate for rubber compounds used for production of tyres including tyre re-treading, and various technical rubber articles.
It is not approved for production of rubber articles coming into contact with food or drinking water.
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| Физический | Номинальное значение | Единица измерения | Метод испытания |
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| Вязкость Mooney (ML 1+4, 100°C) | 50 to 60 | MU | ASTM D1646 |
| Скрепленный стирол | 38.5 to 41.5 | % | ASTM D5775 |
| Содержание золы | < 0.4 | wt% | ASTM D5667 |
| Oil Content | 25 to 29 | wt% | ASTM D5774 |
| Органическая кислота | 4.0 to 6.0 | wt% | ASTM D5774 |
| Мыло | < 0.4 | wt% | ASTM D5774 |
| Летучее вещество | < 0.80 | wt% | ASTM D5668 |