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Committed to producing a variety of high-quality, high-performance and multi-variety, used in chemical coatings, motor transformers and other industrial supporting new materials
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Electrical cardboard

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Address: No. 18, Wangtian Road, Luoxi Town, Xinbei District, Changzhou City, Jiangsu Province
Tel: +86 
18651989127
Fax: +86 0519-86323663

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1000

Electrical cardboard

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Basic information

Electrical paperboard is a paperboard made of high-purity sulphate wood pulp through high-pressure processing. It has high chemical purity and high mechanical strength. After being immersed in oil, it has both mechanical and electrical properties.

Thickness: 0.3-3mm

Width: 1000*2000mm

 

Technical parameters

Thickness ≤1.6mm % max ±7.5
  >1.6mm~8.0mm     ±5.0
Apparent density (tightness) ≤1.6mm g/cm3 range 1.00~1.20
  >1.6mm~3.0mm     1.10~1.25
  >3.0mm~6.0mm     1.15~1.30
  >6.0mm~8.0mm     1.20~1.30
Tensile strength, longitudinal ≤1.6mm MPa min 100
  >1.6mm~3.0mm     105
  >3.0mm~6.0mm     110
  >6.0mm~8.0mm     110
Tensile strength, horizontal ≤1.6mm MPa min 75
  >1.6mm~3.0mm     80
  >3.0mm~6.0mm     85
  >6.0mm~8.0mm     85
Elongation, longitudinal ≤1.6mm     4.0
  >1.6mm~3.0mm     4.0
  >3.0mm~6.0mm     4.0
  >6.0mm~8.0mm     4.0
Shrinkage rate Portrait % max 0.5
  Horizontal     0.7
  Thickness     5.0

 

Compressibility ≤1.6mm % max 10.0
  >1.6mm~3.0mm     7.5
Compressible recyclable part ≤1.6mm % min 45
  >1.6mm~3.0mm     50
  >3.0mm~6.0mm     5.0
  >6.0mm~8.0mm     4.0
  >3.0mm~6.0mm     50
  >6.0mm~8.0mm     50
Moisture   % max 6.0
Ash   % max 1.0
Conductivity of water extract ≤1.6mm mS/m max 5.0
  >1.6mm~3.0mm     6.0
  >3.0mm~6.0mm     8.0
  >6.0mm~8.0mm     10.0
PH of water extract     range 6.0~9.0
Oil pumping ≤1.6mm % min 11.0
  >1.6mm~3.0mm     9.0
  >3.0mm~8.0mm     7.0
Electric strength, in air ≤1.6mm KV/mm min 12
  >1.6mm~3.0mm     11
  >3.0mm~6.0mm     10
  >6.0mm~8.0mm     9
Electric strength, in oil ≤1.6mm KV/mm min 40
  >1.6mm~3.0mm     35
  >3.0mm~6.0mm     30
  >6.0mm~8.0mm     -
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Contact

Address: No. 18, Wangtian Road, Luoxi Town, Xinbei District, Changzhou City, Jiangsu Province
Tel:
+86 
18651989127
Fax: +86 0519-86323663

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