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SBR 1778E (Emulsion Type Styrene Butadiene Rubber)

Date：2023-09-20 09:50:50VIew：

Overview:
This product is produced using the low temperature emulsion polymerization method with butadiene and styrene as the monomers, the mixed soap as the emulsifier, filled with the naphthenic base oil and a non-color type antioxidant as the additive. It is free from nitrosamines and salt.

APPLICATIONS:
Environment friendly oil-filled SBR, which is mainly used for producing advanced tire tread rubber.
TIANJIN SANZHI PETRO-CHEMICAL CO., LTD.
SBR 1778E
ItemsQuality indexMethod
AppearanceNon-polluting light-colored lump rubber without impuritiesVisual measurement

Volatiles,%(mass fraction)≤		0.2GB/T 24131-2009 Hot roll method

Aah,%≤		0.08GB/T4498.1-2013 Method A

Organic acids, %(mass fraction)		5.13GB/T8657-2014 Method A

Organic soaps, %(mass fraction)		0.07GB/T8657-2014 Method A

Bound styrene, %(mass fraction)		23.4GB/T 8658-1998

Massed mooney viscosity,ML(1+4)100°C		48GB/T1232. 1-2000 Roller method

Compound rubber Mooney viscosity,ML(1+4)100°C		55GB/T 1232.1-2000 ASTM IRB
No7carbon black

300% Modulus(145°C),MPa
(Type I specimen,
speed of 500mm/min)		25min12.7GB/T8656-1998GB/T528-1998 Method A ASTM IRB
No 7 carbon black, GB528-2009 Type I cutter
35min15.1GB/T8656-1998GB/T528-1998 Method A ASTM IRB
No 7 carbon black, GB528-2009 Type I cutter
50min17GB/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)		20GB/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)		386GB/T8656-1998GB/T528-1998 Method A ASTM IRB
No 7 carbon black, GB528-2009 Type I cutter

Oil content, %(mass fraction)		27.7SH/T 1718-2002


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