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BOPP Film (Dielectric Film in Medium Frequency Induction Heating Capacitor)

  • Application

DDN provides BOPP films used in high voltage intermediate frequency inductive furnace capacitors. These are particularly suitable for electric heating furnaces that are vital for steel melting operations. The thickness of our Bopp films is 6~25μm. and the working voltage is 0.5~2KV.

Size Parameter:
Thickness: 6~25μm
Width: 30mm~920mm
External diameter of film roll(mm): ≤300
Internal diameter of film roll core(mm): 76
The BOPP film meets IEC and GB standards.

Detail Parameters:
Description of Goods: both side hazy polypropylene film Production Date:9,Nov.2016
Spec:10u (By weight method) Test date:10,Nov.2016
Testing Temperature(℃):21 Relative Humidity(%):50
Batch No.:16X-210
Standard: GB/T 13542.3-2006 and Internal Control Standard
Serial No Testing Item Unit Standard requirement Test result Item estimation
1 Average thickness µm 10 9.98 Qualified
2 Thickness- deviation Average deviation of each batch of BOFF film % ±2 -0.2 Qualified
Max value in each batch of BOFF film µm 10.20 Qualified
Min value in each batch of BOFF film µm 9.8 Qualified
3 Tensile strength MD MPa ≥120 156.2 Qualified
TD ≥200 266.2 Qualified
4 Elongation of break MD % ≥100 134.6 Qualified
TD ≥30 52.7 Qualified
5 Thermal shrinkage (120℃15min) MD % ≤4.0 3.05 Qualified
TD ≤1.0 0.54 Qualified
6 Dielectric strength (by 50 point electrode method) Average V/µm ≥450 519 Qualified
Min ≥400 460 Qualified
7 Dielectric constant 48-62Hz 2.2±0.2 2.23 Qualified
8 Dielectric loss factor tg δ 48-62Hz ≤2.0×10-4 0.78×10-4 Qualified
9 Volume resistivity ρv Ωm ≥1.0×1015 2.3×1015 Qualified
10 Surface roughness AK µm 0.40±0.20 0.348 Qualified
CR 0.301 Qualified
11 Space factor % 10±2.0 8.2 Qualified
12 Weak point Piece ≤0.1 0 Qualified
Inspecting Dept QC Dept Conclusion All items comply with the requirements of standard
Inspector S.W.XIA Verified By TIGER LV
  • Packaging:
    The BOPP films are packaged in a tray. The outside of the package is wrapped with a film, while the internal films are protected by three waterproof and dustproof layers. Package transport and stevedoring are all mechanized.

    Ningbo Great Southeast Wanxiang Science and Technology Co.,Ltd. supplies BOPP capacitor films with superior dielectric properties. DDN has employed four BOPP capacitor film automatic production lines from Bruckner company (Germany) featuring excellent performance in winding capacity, dielectric breakdown strength and saturating properties. Additionally, DDN is equipped with stable production lines ensuring large annual output and JIT delivery. We also utilize highly advance testing instruments and professionals to guarantee the rate of BOPP capacitor films.

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