JSC SKS-1759 / SBR-1759 Styrene-butadiene rubber

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JSC SKS-1759 / SBR-1759 Styrene-butadiene rubber
Categories:	Polymer; Thermoplastic; Styrene-Butadiene
Material Notes:	Description: Styrene-butadiene rubber SKS-1759 (SBR -1759) is the copolymer of styrene and butadiene manufactured by cold emulsion polymerization using mixed rosin acid/fatty acid soaps, filled with naphthenic oil Nytex 4700 and staining antioxidant. REACH: registered Application: used in production of high speed automobile tires and heat-resistant conveyor belts. Appearance: briquettes (bales) Color: from dark-brown to black Information provided by JSC, Synthez-Kauchuk
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Physical Properties	Original Value	Comments

Volatiles	<= 0.75 %	ASTM D5668 (method C)
Mooney Viscosity	<= 6.0	spread within a batch
	50 - 60 @Temperature 100 °C	ML 1+4; ASTM D1646 (para. 7.2.2)
Ash	<= 0.60 %	ASTM D 5667 (part A)
Storage Temperature	<= 30.0 °C

Chemical Properties	Original Value	Comments
Styrene Content	38.5 - 41.5 %	Bound; ASTM D5775

Processing Properties	Original Value	Comments
Shelf Life	12.0 Month

Descriptive Properties
Content	<0.4%	Organic acids soaps, ASTM D5774
	0.3-0.7%	Antioxidant VS-1
	25-29%	Oil (TDAE)
	4-6%	Organic acids, ASTM D5774
Rheometric Properties	1.1-3.1 dNm	ML, ASTM D 5289
	12.6-16.6 min	t90, ASTM D 5289
	13.3-18.3 dNm	MH, ASTM D 5289
	2.9-4.9 min	ts1, ASTM D 5289
	6.2-9.2 min	t50, ASTM D 5289

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