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Performance requirements of composite structure anticorrosion coating with adhesive tape and external protective belt

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Performance requirements of composite structure anticorrosion coating with adhesive tape and external protective belt

Release date:2017-12-07 Author:一分彩 Click:

The inspection and sampling inspection of the visco elastic tape and the outer protective belt in the first use and use should meet the data index requirements of the material itself. ( Anticorrosive tape From Viscoelastic tape The performance index of composite protective coating with external protective belt should meet the following requirements:

Serial number

Item

performance index

test method

One

Impact strength

(20 C, leak voltage 5kV/mm+5kV)

J

Elastomer + polymer tape

More than 3

GB/T23257

Appendix K

Viscoelastic body + Heat shrinkable band

More than 15

Two

Indentation hardness

23 C

Residual thickness, mm

(test pressure 10MP)

More than 0.6

ISO21809-3 appendix H

Electrical spark testing (5kV/mm+5kV)

No leakage point

Design temperature

Residual thickness, mm

(test pressure 1.0MP)

More than 0.6

Electrical spark testing (5kV/mm+5kV)

No leakage point

Three

Cathodic stripping a

Mm

A.65 C, 48H

Less than 5

GB/T23257-2009

Appendix D

B. 23 C, 28d

Less than 10

C. design temperature, 28d

Less than 15

Four

Peel strength a

N/cm

Pair steel

23 C

More than 5

The adhesive coverage is more than 95%.

GB/T23257-2009

Appendix J

Design temperature

More than 1

Anticorrosive coating for pipes

23 C

More than 5

Design temperature

More than 1

Five

Peel strength after hot water soaking, a and B

N/cm

(design temperature +20 C, 100D)

Pair steel

More than 3.5

The adhesive coverage is more than 95%.

GB/T23257-2009

Appendix N and appendix J

Anticorrosive coating for pipes

More than 3.5

Six

Peel strength a and B after dry heat aging

N/cm

(design temperature +20 C, 100D)

Pair steel

More than 3.5

The adhesive coverage is more than 95%.

ISO21809-3

Appendix N

GB/T23257-2009

Appendix J

Anticorrosive coating for pipes

More than 3.5

Tubular specimens were selected for a test.

B peel strength test temperature is 23 degrees.


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Contact: Cheng Huiqiang

Contact : Li Cong
Telephone:0512-63982510 Mobile phone:13962536717

Mobile phone:13806256210

Fax:0512-63982520
Address: No. 333, Jinxian Road, Jinjiaba, Wujiang District, Suzhou, Jiangsu
Website:www.diendanthanhly.net

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