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BIIR instruction
Manufacturer:
SINOPEC Yanshan Company

Product introduction
BIIR stands for Brominated isobutylene isoprene rubber. It is Isobutylene - Isoprene copolymer elastomer which contains bromine. Besides the good performances of Butyle rubber regarding the aspects in low permeability,? high shock absorption, aging esistance,weather resistance,ozone resistance,chemical resistance, vulcanization speed of BIIR is much aster. It improves the compatibility and adhesion with natural rubber, SBR. its heat resistance is much better than NR, SBR .BIIR is mainly used to product inner liner of tubeless tires tire sidewall,heat-resistant inner tube ,heat-resistant hose, heat-resistant conveyor belt and so on.

Technical index

Table 1:BIIR 2032 Technical standard (Interim)and test method


NO.

Item

BIIR2032

Test method

Prime grade

First grade

Qualified

1

Appearance

Brown or yellowish block

Visual test

2

Volatile (Wt% )

0.5

0.7

1.0

GB/T 24131-2009

3

Raw rubber Mooney ML(1+8)125

324

324

325

GB/T 1232.1-2000

4

Bromine(Wt% )

2.00.3

2.00.3

2.00.4

Q/SH3155.SXJ.A20-2010

5

Ash % (Wt% )

0.7

0.7

0.8

GB/T 4498-1997 Method A

6

Vulcanization Characteristics

MH(dNm)

Report values

ISO 7663

ML(dNm)

Report values

t' 50

Report values

t' 90

Report values

ts 2

Report values

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

Table 2: BIIR 2039 Technical standard (Interim)and test method


NO.

Item

BIIR2039

Test method

Prime grade

First grade

Qualified

1

Appearance

Brown or yellowish block

Visual test

2

Volatile (Wt% )

0.5

0.7

1.0

GB/T 24131-2009

3

Raw rubber Mooney ML(1+8)125

394

394

395

GB/T 1232.1-2000

4

Bromine(Wt% )

2.00.3

2.00.3

2.00.4

Q/SH3155.SXJ.A20-2010

5

Ash % (Wt% )

0.7

0.7

0.8

GB/T 4498-1997 Method A

6

Vulcanization Characteristics

MH(dNm)

Report values

ISO 7663

ML(dNm)

Report values

t' 50

Report values

t' 90

Report values

ts 2

Report values

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

 

Table 3:BIIR 2046 Technical standard (Interim)and test method

NO.

Item

BIIR2046

Test method

Prime grade

First grade

Qualified

1

Appearance

Brown or yellowish block

Visual test

2

Volatile (Wt% )

0.5

0.7

1.0

GB/T 24131-2009

3

Raw rubber Mooney ML(1+8)125

464

464

465

GB/T 1232.1-2000

4

Bromine(Wt% )

2.00.3

2.00.3

2.00.4

Q/SH3155.SXJ.A20-2010

5

Ash % (Wt% )

0.7

0.7

0.8

GB/T 4498-1997 Method A

6

Vulcanization Characteristics

MH(dNm)

Report values

ISO 7663

ML(dNm)

Report values

t' 50

Report values

t' 90

Report values

ts 2

Report values

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

Package
Wooden box or Metal box,1050kg/box.

Storage
Goods should be Stored with the environment temperature no more than 35 degrees celsius, prevent from direct sun light. Storage period is one year from the date of production.

Transportation
Suitable for all transportation manners. .Keep normal constant temperature,dry,ventilated and clean when transportation. .Avoid from direct sunlight,high temperature ,raining & pollution .

 


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