Styrene-butadiene rubber SKS-1739 (SBR -1739) is the copolymer of styrene and butadiene manufactured by cold emulsion polymerization using mixed rosin acid/fatty acid soaps, filled with TDAE-type oil and staining antioxidant.
Application: SKS-1739 (SBR-1739) is a special-purpose rubber, used in production of high speed automobile tires and heat-resistant conveyor belts.
Rubber should not contain any foreign impurities and must meet the following requirements:
Appearance: briquettes (bales)
Weight: 30.0+/-1.0 kg
Colour: from light-brown to dark-brown
The product must meet the following quality parameters:
* – specified in the certificate of quality.
** – non-rejectable.
Preparation of rubber mixes is carried out in accordance with ASTMD 3185 recipe 1А, mixing – according to method A. Mixing mills are prepared according to ASTM D 3182. Rheometric properties are determined according to ASTM D 5289 using an MDR 2000 rheometer (flow meter). Wait time for rubber mix before testing is 2-6 hours.
Rubber mix recipe and measurement conditions: