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styrene butadiene rubber
Name: Styrene, 1,3-butadiene polymer
CAS RN: 9003-55-8
Formula: C12H14
Molecular weight: 158.243
Specifications of SBR-1500 (GB8655--88)
Item | Top Class | Class One | Qualified | Test Method |
Volatiles% ≤ | 0.75 | 1.00 | 1.30 | GB/T 6737(A) |
Ash content % ≤ | 1.00 | 1.5 | 1.50 | GB/T 6736 |
Organic Acid % | 5.0~7.25 | 5.0~7.25 | 5.0~7.25 | GB/T 8657 |
Saponification % ≤ | 0.50 | 0.50 | 0.50 | GB/T 8657 |
Bound Styrene % | 22.5~24.5 | 22.5~24.5 | 22.5~24.5 | GB/T 8658 |
Raw Viscosity ML_(1+4)~(100°C) | 46~58 | 45~59 | 44~60 | GB/T 1232 |
Compound Viscosity ML_(1+4)~(100°C) | 85 | 85 | 85 | GB/T 1232 |
300% Modulus 25min MPa (300%)35min MPa 50min MPa | 7.1~11.6 | 5.9~11.8 | 9.8~16.7 | GB/T 8656 |
11.3~15.8 | 10.3~16.2 | 9.8~16.7 | GB/T 8656 | |
13.2~17.7 | 12.3~18.1 | 9.8~16.7 | GB/T 8656 | |
Tensile Strength35min MPa≥ | 22.1 | 21.1 | 21.1 | GB/T 8656 |
Elongation at Break35min %≥ | 480 | 480 | 480 | GB/T 8656 |
Specifications of SBR-1502 (GB12824--91)
Item | Top Class | Class One | Qualified | Test Method |
Volatiles% ≤ | 0.75 | 1.00 | 1.30 | GB/T 6737(A) |
Ash content % ≤ | 0.75 | 1.00 | 1.50 | GB/T 6736 |
Organic Acid % | 4.50~6.75 | 4.50~7.00 | 4.50~7.00 | GB/T 8657 |
Saponification % ≤ | 0.50 | 0.50 | 0.50 | GB/T 8657 |
Bound Styrene% | 22.5~24.5 | 22.5~24.5 | 22.5~24.5 | GB/T 8658 |
Raw Viscosity ML_(1+4)~(100°C) | 45~55 | 44~56 | 43~57 | GB/T 1232 |
Compound Viscosity ML_(1+4)~(100°C) | 90 | 90 | 90 | GB/T 1232 |
300% Modulus 25min MPa (300%)35min MPa 50min MPa | 11.3~15.8 | 10.8~16.3 | 13.0~19.5 | GB/T 8656 |
14.1~18.6 | 13.6~19.1 | 13.0~19.5 | GB/T 8656 | |
14.9~19.4 | 14.4~19.9 | 13.0~19.5 | GB/T 8656 | |
Tensile Strength35min MPa≥ | 23.7 | 22.5 | 22.5 | GB/T 8656 |
Elongation at Break35min %≥ | 415 | 400 | 400 | GB/T 8656 |
Characteristic:
SBR is a conventional synthetic rubber with grades as SBR-1500, SBR-1502 and SBR-1712. Compared with natural rubber, SBR possess outstanding abrasion-ageing- ozone-water- resistance, airtightness and homogeneity characteristics and could be blended with natural rubber in any proportion.
Application:
SBR-1500 is widely used for rubber products with carbon black as strengthening agent and of less colour requirements, such as tire tread compounds, renovated tire tread compounds, belts, hoses, footwears and other black rubber products. SBR-1502 could be widely used for bright-coloured and light-coloured rubber products, such as sidewall of the tires, transparent footwears, rubberized fabric, medical rubber products and other conventional colourful rubber products.
synthetic rubber 1500