pOlystyrene-b-pOlybutadiene-b-pOlystyrene cas 9003-55-8

Chemical name: POLYSTYRENE-B-POLYBUTADIENE-B-POLYSTYRENE
CAS No.: 9003-55-8
Molecular Formula: 474.72
Appearance: White Powder

Description

POLYSTYRENE-B-POLYBUTADIENE-B-POLYSTYRENE Quick Details
Chemical name: POLYSTYRENE-B-POLYBUTADIENE-B-POLYSTYRENE
CAS No.: 9003-55-8
Molecular Formula: 474.72
Appearance: White Powder
POLYSTYRENE-B-POLYBUTADIENE-B-POLYSTYRENE Description and Usage
Performance
SBR-1500 is the most typical type of general-purpose contaminated soft styrene-butadiene rubber. The adhesiveness and processing properties of raw rubber are excellent. The wear resistance, tensile strength, tear strength and aging resistance of vulcanized rubber are better. SBR-1502 is the most typical type of general non-polluting soft styrene butadiene rubber. Its performance is equivalent to that of SBR-1500. It has good tensile strength, wear resistance and flexural energy.
Usage
SBR-1500 is widely used in carbon black as a reinforcing agent and products with low color requirements, such as tire tread, retread tread, conveyor belt, hose, molded products and extruded products. SBR-1502 is widely used in bright and light colored rubber products such as tire sidewalls, transparent rubber shoes, tapes, medical products and other general colored products.
POLYSTYRENE-B-POLYBUTADIENE-B-POLYSTYRENE Specification

Specification
SBR—-1500
SBR—-1502

Superior grade
First grade
Qualified product
Superior grade
First grade
Qualified product

Volatility % ≤
0.75
1.00
1.30
0.75
1.00
1.30

Total ash % ≤
1.00
1.50
1.50
0.75
1.00
1.50

Organic acid %
5.00—7.25
5.00—7.25
5.00—7.25
4.50—6.75
4.50—7.00
4.50—7.00

Saponificationvalue %≤
0.50
0.50
0.50
0.50
0.50
0.50

Combined styrene %
22.5—24.5
22.5—24.5
22.5—24.5
22.5—24.5
22.5—24.5
22.5—24.5

Raw rubber Mooney viscosity /ML(1 4)100℃
46.0—58.00
45.0—59.0
44.0—60.0
45.0—55.0
44.0—56.0
43.0—57.0

Mixing rubber Mooney viscosity/ML(1 4)100℃≤
85.0
85.0
85.0
90.0
90.0
90.0

300finite stress/Mpa 25min35min50min
7.1—11.613.2—17.713.2—17.7
5.9—11.810.3—16.212.3—18.1
9.8—16.7
11.3—15.814.1—18.614.9—19.1
10.8—16.313.6—19.114.4—19.9
13.0—19.5

Tensile Strength/Mpa 35min ≥
22.1
22.1
22.1
23.7
22.5
22.5

Elongation% 35min ≥
480
480
480
415
400
400

POLYSTYRENE-B-POLYBUTADIENE-B-POLYSTYRENE PackageandStorage
The inner packaging is a polyethylene film, and the outer packaging is a polypropylene coated woven bag. The net weight of each bag is 35±0.5kg. Store in a dry, ventilated, clean, and low temperature and room temperature warehouse. Avoid contamination, rain, flooding and direct sunlight when storing. During transportation, it should not be exposed to the sun, and should not be mixed with debris; it should not be stacked with flammable or oily materials. The transport car should be kept clean to avoid damage to the packaging and the intrusion of debris. The car should be covered with a rainproof cloth.

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