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Styrene-butadiene Rubber 1712

The oil-filled styrene (alpha-methyl styrene)-butadiene SK(M)S-30 ARKM-27 Rubber is produced by emulsion copolymerization of styrene and butadiene at 4 C 8 C, using as an emulsifier a mixture of disproportionated liquid rosin, that is resinous and fatty acids of natural origin based.
The technological process and methodics of production eliminate in synthesis processes using and formation of nitrose compounds. The diethylhydroxylamim is used in polymerization as a stopper. The polymer coagulates in a system ^salt+acids ̄ and does not contain any side inclusions of the structural and wet polymer.

It is well mixing with different ingredients of rubber compounds and is easily treated on the simple rubber production equipment, is quite compatible with different rubbers of general use, has a low cost.

In mixing with SK(M)S-30 ARK (SBR-1500) at 1:1 rate the product will be of higher hardness, will grow tyres abrasion resistance and will make bigger its running time up to 10%.
According to its technological properties, processing method and technical characteristics is analogous to the SBR-1712.

TECHNICAL SPECIFICATION

MOONEY VISCOSITY ML (1+4) 100 C ´´´´´´´´´´´´´´´´´´´..47-57
VISCOSITY SCATTERING IN ONE LOT,%, ´´´´´´´´´´´´´´´´´´..5
TENSILE STRENGHT, Mpa, no less than ´´´´´´´´´´´´´´´´´´´.´.22
ELONGATION AT BREAK,%, ´´´´´´´´´´..´´´´´´´´´´´...550-750
RESIDUAL DEFORMATION AFTER BREAK,%, no more than ´´´´´´´´´´´20
REBOUND ELASTICITY,%, no less than ´´´´´´´´´´´´´´´´´´´´.29
ASH CONTAIN,%, no more than ´´´´´´´´´´´´´´´´´´´´´´0,6
MASS FRACTION OF METALS, %, no more than:Cu ´´´´´´´´´´´´´´´0,0002
Fe ´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´0,005
MASS LOSSES AT DRYING, %, no more than ´´´´´´´´´´´´´´´´´0,35
MASS FRACTION OF ORGANIC ACIDS, % ´´´´´´´´´´´´´´´´´4,0-5,6
MASS FRACTION OF ORGANIC ACIDS SOAPS,%, no more than ´´´´´´´´´0,15
MASS FRACTION OF OIL,% ´´´´´´´´´´´´´´´´´´´´´´26-29
MASS FRACTION OF ANTIOXIDANT:
VS-1 or ´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´´.0,15
VTS-150´´. ´´´´´´´´´´´´´´´´´´´´´´´´´´.1,0-1,4
MASS FRACTION OF BOUND STYRENE (ALPHA-METHYL STYRENE),%´´´´´´22-25

APPLICATION
The SK(M)S-30 ARKM-27 is a general-purpose rubber. It is widely used in tyre, rubber technical, shoe, cable and other industries for production of automobile tyres and tubes, wide assortiment of rubber-technical articles, white and colour shoes, cable castings and so on.

PACKAGE
The SK(M)S-30 ARKM-27 Rubber is produced in 30+1 kg briquettes wrapped in marked polyethylene film and 4-layer craft bags. The briquettes may be packed in crates about 450 kg net weight.


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