Overview:
The product is produced using the low-temperature emulsion polymerization method with butadiene and styrene as monomers and the complex soap of potassium dispro?portionated rosinate or potassium rosinate soap with fatty acid soap as the emulsifier. It is free from nitrosamines and salt.

APPLICATIONS:
Environment friendly styrene-butadiene rubber (SBR), which has a wide application in producing color or light colored rubber products, such as soles, rubberized fabric, medical supplies, rubber rolls, tires and the rubber products which has an environ?mental requirement to raw rubber materials.

TIANJIN SANZHI PETRO-CHEMICAL CO., LTD.
SBR 1502E
Items		Quality index	Method
Appearance		Non-polluting light-colored lump rubber without impurities	Visual measurement
Volatiles,%(mass fraction)≤		0.45	GB/T 24131-2009 Hot roll method
Aah,%≤		0.5	GB/T4498-1997 Method A
Organic acids, %(mass fraction)		4.50-6.75	GB/T8657-2000 Method A
Organic soaps, %(mass fraction)		0.5	GB/T8657-2000 Method A
Bound styrene, %(mass fraction)		22.5-24.5	GB/T 8658-1998
Massed mooney viscosity,ML(1+4)100°C		46-54	GB/T1232. 1-2000 Roller method
Compound rubber Mooney viscosity, ML(1+4)100°C≤		93	GB/T 8656-1998 Metohod A ASTM IRB No7carbon black ,GB/T1232. 1-2000
300% Modulus(145°C),MPa (Type I specimen, speed of 500mm/min)	25min	13.6-17.6	GB/T8656-1998GB/T528-1998 Method A ASTM IRB No 7 carbon black, GB528-2009 Type I cutter
	35min	18.6-22.6	GB/T8656-1998GB/T528-1998 Method A ASTM IRB No 7 carbon black, GB528-2009 Type I cutter
	50min	19.5-23.5	GB/T8656-1998GB/T528-1998 Method A ASTM IRB No 7 carbon black, GB528-2009 Type I cutter
Tensile strength (145°C,35min),MPa≥ (Type I specimen, speed of 500mm/min)		25.5	GB/T8656-1998GB/T528-1998 Method A ASTM IRB No 7 carbon black, GB528-2009 Type I cutter
Elongation(145°C,35min),%≥ (Type I specimen, speed of 500mm/min)		340	GB/T8656-1998GB/T528-1998 Method A ASTM IRB No 7 carbon black, GB528-2009 Type I cutter
N-nitrosamines, %(mass fraction)		Not detected	Q/SY 1389-2011