盤錦億和塑膠有限公司
盤錦億和塑膠有限公司

YHH-21A marine cable-sheath rubber compound

    The product perform standards of GB/T17556-2010,obey the regulation of XH-21A(operation temperature ) in the GB7594.9-1987,  meet the standards of test flame-retardant property, can satisfy general cold resistance demand. Can be matched with the insulating rubber at operative temperature 90℃.
    According to the regulation, the color of sheath should be black and gray, and also can be made as custom requested. 

Performance comparison 

Test item

Unit

GB7594.9-87

Test value

Before ageing

Tensile strength

Intermediate values

MPa

≥10.0

12.9

Elongation at

Intermediate values

%

≥300

428

Heat ageing test of air box

Aging conditions

Temperature

100±2

Time

h

7×24

Tensile strength

Rate of change

%

≤±30

-6

Elongation at

Intermediate values

%

≥250

465

Rate of change

%

≤±40

9

Hot set test

Test conditions

Test temperature

200±3

Load time

min

15

Mechanical stress

MPa

0.2

Load elongation

%

≤175

40

Permanent deformation after cooling

%

≤15

7

Oil test

Test conditions

Oil temperature

100±2

Dipping oil

h

24

Tensile strength

Rate of change

%

≤±40

-7

Elongation at

Rate of change

%

≤±40

-4

Ozone resistance test

Test conditions

Test temperature

25±2

Duration

h

24

Ozone concentration

%

0.025~0.030

Tensile test

No cracking

No cracking

 

 

 YHH-21A型船用電纜護套膠料



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