NBR 3305E (Nitrile Butadiene Rubber)

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 ashoses, rubber rollers, insulation foams, oil-proof seals and other miscellaneous pieces. Forexample, the sub in automobile, drilling and engineering hydraulic pressure rubber hoses,inner rubber lining, textile rubber roller, printer rollers, the insulation foam materials like thesheathing compounds for fitness and locomotory apparatus, oil tank liners, oil-proof seals andmiscellaneous pieces of rubber products.TIANJIN SANZHI PETRO-CHEMICAL CO., LTD.NBR 3305EItemsQuality indexMethodAppearanceQualifiedVisual measurement
Volatiles,%(mass fraction)≤0.18GB/T 24131-2009 Hot roll method A
Aah,%≤0.71GB/T4498-1997 Method A
Bound styrene, %(mass fraction)33.5SH/T 1157-1997
Mooney viscosity, ML(1+4)100°C≤57GB/T 1232. 1-2000 Over roll method300% Modulus(145°C,35min),MPa
(Type I specimen,
at speed of 500mm/min)10.9SH/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)28.4SH/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)641SH/T 1611-2004 ASTM IRB
No 7 carbon black, GB528-2009 Type I cutter