辐射交联聚丙烯热缩带

Properties

性能

Test temp.

测试温度

Unit

单位

Requirements

要求

Test Results

测试结果

Test method

测试方法

Width

宽度

mm

≥450mm

470mm

By tape

measure

Thickness-sleeve layers

厚度

-

mm

≥2.5mm

＞2.5mm

ISO21809-3 Annex B

Holiday detectionat 

漏点检测

5kV/mm+5kV

23℃

-

No holiday

无漏点

No holiday无漏点

ISO21809-3 Annex C

Impact resistance抗冲击强度(holiday detection at 5kV/mm+5kV)

23℃

J/mm

≥10

10

ISO21809-3 Annex D

Indentation resistance Pressure

抗压痕

Residual thickness

剩余厚度

T_max

N/mm²

mm

10.0

≥0.6

10

1.0

ISO21809-3 Annex E

Cathodic disbondmtent阴极剥离 @ 28 days

23℃

mm

≤5.0

4.0

ISO21809-3 Annex G

Tmax limited to 95℃

mm

≤10

8.1

Peel strength at 10 mm/min to pipe surface and to polyolefin coating plant coating

对钢和防腐层的粘结强度

23℃

N/mm

≥4.0

9.2

ISO21809-3 AnnexH.1

T_max

N/mm

≥2.0

3.0

Peel strength at 10 mm/min to pipe surface and to polyolefin plant coating after 100 days hot water immersion test at T_max limited as per Annex I

100天热水浸泡后粘结强度保持率

23℃

P100/P0

≥0.75

0.83

ISO21809-3

Annex I and Annex H

Lap shear strength at 10 mm/min

剪切强度

23℃

N/mm²

≥5.0

7.3

ISO21809-3 Annex J

T_max

N/mm²

≥1.0

1.3

Thermal ageing resistance (aged at Tmax +20℃)

- Elongation at break (E100/E70)

-Peel strength to pipe surface(P100/P70)

热老化后粘结强度保持率

23℃

≥0.75

0.89

ISO21809-3 Annex M

-

≥0.75

0.85

Oxidation induction time on the backing at 220℃ （intercept in the tangent method）

氧化诱导期

-

min

≥15

35

ISO11357-6

Thermal stability at 130℃ for 50 weeks， installed system

热稳定性

visual

No cracks

无裂纹

No cracks

无裂纹

ISO21809-3Annex N