Chemical Name: Styrene Butadiene Rubber (SBR)
Process: Low-temperature emulsion polymerization
Capacity: 140,000 mt per year
Properties: The shelf life of SBR is longer because
of its good stability. The property of SBR is similar to that of natural
rubber. It will appear physical and chemical change, while its oxidization is
slow under the effect of light, heat, oxygen and ozone. More filling agents can
be added in SBR and hardly affect the physical and mechanical properties of
SBR, therefore SBR is fit for the production of rubber products with lower
content of rubber. The low temperature resistance and resilience of SBR is not
as good as natural rubber, but SBR is better than natural rubber as for
antifriction, heat-proof, oil-proof and resistance to aging.
Applications: SBR 1500 is used for tyre, sidewall
rubber, general back rubber, line belt, rubber hose, sole and other black
rubber products without any limits of excellent physical properties, pollution
and color. SBR 1502 is used for white sidewall rubber, hosepipe, shoes, sole,
rubber fabric and clothes, toys and black and colorful products with excellent
physical properties and no pollution.
Packing: packed in 35kg bags, 17.5MT/20#FCL
Shipping and storage: SBR should be trimly piled up with
certain space in stack. The height of stack is not higher than the thickness of
10 pieces of rubbers. It should be stored in a drafty, clean and dry warehouse
at ambient temperature, to avoid drench, pollution and direct radiation of
sunlight. It also avoids strongly direct radiation of sunlight and soak of
rainwater while transportation.
Specifications:
Grade
|
1502
|
Volatile matter, %
|
≤0.60
|
Total ash, %
|
≤0.50
|
Organic acids, %
|
4.50 – 6.75
|
Soap, %
|
0.50
|
Binding styrene, %
|
22.5 – 24.5
|
Mooney viscosity of green
rubber, ML 100℃ 1+4
|
45—55
|
Mooney viscosity of milling
rubber,ML 100℃ 1+4
|
≤93
|
300% stress of directional elongation oriented stretch stress, Mpa,
25min
35min (145℃*35min)
50min (145℃*50min)
|
17.7 ±2.0
20.6±2.0
21.5±2.0
|
Tensile strength, Mpa 35min. 145℃*35min
|
≥25.5
|
Extensibility, % 35 min. 145℃*35min
|
≥340
|
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