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Single Margin Zn-Al MPP Film With High Resistance

In a high vacuum condition, a coating machine melts, evaporates, and deposits high-purity zinc and aluminum on the base film. Following the formation of an incredibly thin metal layer, a metalized polypropylene film is created on the surface.

The metalized film has a self-healing function, and it naturally reverts to the electrical performance characteristic prior to the breakdown right after the partial breakdown of the film dielectric. The metalized film is covered on one or both sides of the edge or in the center to create a blank insulating strip without evaporating metal, which is known as the margin. The margin's width is also known as the margin.


Specification of Single Margin Zn-Al MPP Film With High Resistance


Base film

Polypropylene film

Normal thickness

2.0μm ~12.0μm

Margin type

Single

Coating metal

Aluminum or Zinc-Aluminum alloy

Coating side

Single

Edge structure

Heavy edge


Square resistance: Normal film Width and Margin

Reinforced resistance

Normal resistance

(2~4)Ω/ohms

(30~555)Ω/ohms

(40~65)Ω/ohms

(50~80)Ω/ohms

(70~100)Ω/ohms

(90~120)Ω/ohms


Width(mm)

Margin(mm)

Width(mm)

Margin(mm)

37.5

2.0/2.5

90

2.0/2.5

50

2.0/2.5

95

2.0

55

2.0/2.5

100

2.5

60

2.0/2.5

110

2.5

67.5

2.0

115

2.5

75

2.0/2.5



Note: If a customer needs other resistance, film width, or margin, please contact us.


Inside/outside core diameter:

Inside core diameter/Tolerance

Outside core diameter/Tolerance

75mm

+1/-0.5mm

220

280

320

±20mm

±20mm

±20mm

Note: A pair tolerance of outside core diameter ≤2mm.


Specifications of metalized polypropylene film:

Properties

Unit

Typical value

Density

g/cm3

0.905±0.005

Thickness

µm

2.0 ~ 12

Tensile Strength

MD (MPa)

≥100

Elongation at Break

MD (%)

20~200

Elastic Modulus

MD (MPa)

2800

Heat Shrinkage

MD (%)

≤5 ( 120°C, 10min)

Wetting Tension

mN/m

38 (Corona treated side)

Surface Roughness

µm

0.08

Melting Point

172

Volume Resistivity

Ω.m

>1015

Break-down Voltage

V/µm

≥350 ( 23°C, DC )

Dielectric Constant


2.2 (20℃,1KHz)

Dissipation Factor


≤4×10-4 (20℃,1KHz )

RC

ΩF

≥5×104


Products

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No.1771 Qifeng Road, Tongling City, Anhui Province, China

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