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SSBR
Manufactturer: SINOPEC BEIJING YANSHAN COMPANY

Product Introduction:
SSBR is a Copolymer polymerized by Butadiene and Styrene in Hydrocarbon solvents with Lithium. It has a lot of obvious advantages such as Wear resistance,Cold resistance, Low heat, Good elasticity, Low shrinkage, light color, Low ash content, High purity and Fast vulcanization. With the development of radial tires, especially the development of new energy-saving radial tires, it put forward high requirements to the rubber produced for tires, not only requires for high strength of raw-rubber and good performance of anti-wet,but also requires for the low rolling resistance.SSBR has all of these good performances in rolling efficiency, Skid resistance and wear-resistance, are widely in producing of green tire,anti-skid tire,Ultra-lightweight tire and other tires with high-performance demanding , SSBR is one of the most ideal raw material for radial tires , which offers with both energy-saving and safety performance.

  1. SSBR Grades &Application

Grades

Application

Structure

Characteristics

SSBR2305Non Oil Extended

SSBR2635
Oil-Extended

-P/C Tire
LRR

-Anion random polymerization polymer

-Skid resistance
-Driving safety
- rolling efficiency
-Wear resistance
-Cold resistance
-Low heat
-Good elasticity
-Low shrinkage
-Fast vulcanization
-Low cost

Remark:P/C-passenger cars,LRR-Low rolling resistance

SSBR Appearance,Package,Storage&Transportation

  1. Appearance SSBR2305

  1. Package,Storage&Transportation

Block shape of brown or white,25kg/block net weight.Double packaging:the inner is PE film,the outside is craft bag with polypropene inside. Store in the warehouse under the condition of room temperature,ventilation,clean and dry. Prohibited from piling in the open air, no direct sunlight, keep away from sunshine,water & fire.

Performance Introduction of SSBR

  1. SSBR Performance Index

Grades

2305

2635

Test method

Grade
Item

Prime grade

First grade

Quanlified

Qualified

appearance

Milky no mechanical impurities

Dark brown

Visual test

Volatile %

0.75

1.00

1.30

1.30

GB/T6737-1997

Ash %

0.10

0.10

GB/T4498-1997

Raw rubber Mooney ML(1+4)100

553

555

555

554

GB/T1232.1-2000

Mix rubber ML(1+4)100

100

 

GB/T1232.1-2000

Elongation stress300% , 35min Mpa

11.5-20

8.0

GB/T528-1998

Tensile strength 35min Mpa

17.5

18

GB/T528-1998

Elongation at break %

310

450

GB/T528-1998

Antioxidant

Non- Stained

Non- Stained

 

Remark : The Performance Index of Mix rubber & vulcanized rubber are evaluated by ASTM IRB NO.7

Basic features of SSBR2305 & SSBR2635
Good appearance, odorless, (non-oil-Extended) high purity, ash content0.1% which is much lower than that of SBR 5%~8%.
Non-Stained antioxidant.
Complex performance of SSBR is between ESBR and BR, Low rolling resistance, Energy-saving, Slide resistance, Wear resistance, Low heat, help to extent tyres' life span, especially suitable for the green-tires and high-performance tires.
Low energy consumption in mixing, high strength of mix rubber,stiffness of rubber,high tensile strength of vulcanized rubber,good tear resistance&durability.
Mix rubber has little shrinkage,good size stability and excellent manufacture performance.

Comparison between SSBR2305 & SBR

Appearance

 

SSBR2305

SBR1712

SBR1502

Acids wt%

 

5.8

2.9

Rosin acid wt%

 

2

2.9

Ash wt%

1.10

0.15

0.6

Hydrocarbon

99

92

92

Color

White

Dark

Light yellow

Performance


Item

SSBR2305

SBR1502

SBR1712

Raw rubber Mooney

52

53

53

Hardness Shore

74

72

66

Elongation stress300%

18.0

19.5

10.7

Tensile strength Mpa

22.3

27.2

24.1

Permanent deformation %

9

8

15

Relative elongation %

329

392

573

Tear strength kN.m-1

32

39

-

Tan (0)

0.2102

0.1847

0.1805

Tan (60)

0.1169

0.1142

0.1335

Remark :The mixing formula is same as the national standard styrene-butadiene formula.

YANSHAN BRAND SSBR2305 TEST RESULT
SSBR2305 Test of NMR & GPC


NO.

SSBR2305

Non block-St %

23.4

Block -St %

1.5

Vinyl %

38.0

T-1,4 %

49.6

C-1,4 %

12.4

Mn104

12.9

Mw104

13.6

CE%

55.7%

Mw/Mn

1.056

Physical-mechanical performance of Vulcanizate-SSBR2305


NO.

SSBR2305

SSBR2305(׼)

Raw rubber ML(1+4)100

54

553

Hardness Shore/Shore A

72

 

300%Elongation stress /Mpa 35min

13.0

11.5~20

Tensile strength / Mpa

22.0

17.5

Elongation at break / %

443

310

Permanent deformation / %

8

 

Tear strength/ kN.m-1

35

 

Tg/

-39.8

 

Remark :All above data is from the tire testing center of Beijing Rubber Industry Research & Design Institute.

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