Overview:
The product is produced using the low temperature emulsion polymerization method with butadiene and acrylonitrile as the monomers. It is free from nonylphenol (NP).

APPLICATIONS:
An environment friendly nitrile rubber suitable for producing the rubber products such as hoses, rubber rollers, insulation foams, oil-proof seals and other miscellaneous pieces. For example, the sub in automobile, drilling and engineering hydraulic pressure rubber hoses, inner rubber lining, textile rubber roller, printer rollers, the insulation foam materials like the sheathing compounds for fitness and locomotory apparatus, oil tank liners, oil-proof seals and miscellaneous pieces of rubber products.

TIANJIN SANZHI PETRO-CHEMICAL CO., LTD.
NBR 3305E
Items		Quality index	Method
Appearance		Qualified	Visual measurement
Volatiles,%(mass fraction)≤		0.18	GB/T 24131-2009 Hot roll method A
Aah,%≤		0.71	GB/T4498-1997 Method A
Bound styrene, %(mass fraction)		33.5	SH/T 1157-1997
Mooney viscosity, ML(1+4)100°C≤		57	GB/T 1232. 1-2000 Over roll method
300% Modulus(145°C,35min),MPa (Type I specimen, at speed of 500mm/min)		10.9	SH/T 1611-2004 ASTM IRB No 7 carbon black, GB528-2009 Type I cutter
Tensile strength (145°C,35min),MPa≥ (Type I specimen, at speed of 500mm/min)		28.4	SH/T 1611-2004 ASTM IRB No 7 carbon black, GB528-2009 Type I cutter
Elongation(145°C,35min),%≥ (Type I specimen, at speed of 500mm/min)		641	SH/T 1611-2004 ASTM IRB No 7 carbon black, GB528-2009 Type I cutter