Raw Material: | Synthetic Rubber |
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Material: | Styrene Butadiene Rubber |
Specification: | 35KG/bag |
Trademark: | KunLun |
Origin: | China |
Samples: |
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TIANJIN SANZHI PETRO-CHEMICAL CO., LTD. | |||
SBR 1778E | |||
Items | Quality index | Method | |
Appearance | Non-polluting light-colored lump rubber without impurities | Visual measurement | |
Volatiles,%(mass fraction)≤ |
0.2 | GB/T 24131-2009 Hot roll method | |
Aah,%≤ |
0.08 | GB/T4498.1-2013 Method A | |
Organic acids, %(mass fraction) |
5.13 | GB/T8657-2014 Method A | |
Organic soaps, %(mass fraction) |
0.07 | GB/T8657-2014 Method A | |
Bound styrene, %(mass fraction) |
23.4 | GB/T 8658-1998 | |
Massed mooney viscosity,ML(1+4)100°C |
48 | GB/T1232. 1-2000 Roller method | |
Compound rubber Mooney viscosity,ML(1+4)100°C |
55 | GB/T 1232.1-2000 ASTM IRB No7carbon black |
|
300% Modulus(145°C),MPa (Type I specimen, speed of 500mm/min) |
25min | 12.7 | GB/T8656-1998GB/T528-1998 Method A ASTM IRB No 7 carbon black, GB528-2009 Type I cutter |
35min | 15.1 | GB/T8656-1998GB/T528-1998 Method A ASTM IRB No 7 carbon black, GB528-2009 Type I cutter |
|
50min | 17 | 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) |
20 | 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) |
386 | GB/T8656-1998GB/T528-1998 Method A ASTM IRB No 7 carbon black, GB528-2009 Type I cutter |
|
Oil content, %(mass fraction) |
27.7 | SH/T 1718-2002 |
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