Shield T 35-M – 1.2mm | VonRoll™

Battery Protective Sheet

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  • Mica content: 200 ± 6 g/m<sup>2</sup>
  • resin content: 22 ± 4 %
  • Breakdown Voltage: >5.5 kV
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Stock sheet size: 100cm x 100cm

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Description

VonRoll Shield T 35-M is a developmental product consisting of a special sandwich construction with external layers comprising Muscovite mica paper impregnated with high temperature silicone resin and a compressible fiber core. Mica resists extreme temperatures and aggressive chemicals while maintaining its structural integrity and its thermal and electrical insulation properties. The interleaving glass fleece act as low-density thermal insulating material.

Benefits

  • Thermal shielding material
  • Excellent thermal resistance
  • Excellent electrical insulation characteristics

Features

  • Mica content: 200 ± 6 g/m2
  • resin content: 22 ± 4 %
  • Breakdown Voltage: >5.5 kV

Recommended Uses

  • Used as a fire break inside electric vehicle and other energy storage systems
  • Used in the construction of electric motors
  • Resists open flame propagation

General Properties

Properties Test norm Unit Value
Nominal Thickness (at 0.5 kPa compression) ISO 9073-2 mm 1.2 ± 0.2
Total Area weight density IEC 60371-2 g/m<sup>2</sup> 450 ± 45
Total Mica content IEC 60371-2 g/m<sup>2</sup> 200 ± 6
Total resin content IEC 60371-2 % 22 ± 4

Electrical Properties

Properties Test norm Unit Value
<div>Break-down voltage<br><small>(Method: 50Hz DC, 20s Steptest 7kV/20s/+0.5kV)</small></div> IEC 60243-1 kV > 5.5
Insulation resistance<br><small>(Method 500V / DC, 50mm / 140mm electrodes)</small> IEC 62631-3-3 GΩ > 1000

Thermal Properties

Properties Test norm Unit Value
Thermal conductivity <sup>ꓕ</sup> to sheet direction<br>(@60°C and <10% compression) ISO 8301 W/mK 0.05
Thermal conductivity <sup>ꓕ</sup> to sheet direction<br>(@60°C and 50% compression) ISO 8301 W/mK 0.07
Loss of ignition (1h@600°C) IEC 60371-2 % ≤ 21
Loss on ignition (1h@900°C) IEC 60371-2 % ≤ 24

Flammability

Properties Test Norm Unit Value
Vertical flammability UL94 – V0





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