Plastic Film Metallized Polyester Film Used for Capacitors

Product Description

Plastic Film Metallized Polyester Film Used for Capacitors

Our company has 8 large-scale high vacuum coating equipment,
 24 intellectualized slitting machines.  Professional manufactures variours formations of metallizded polypropylene & polyester film for capacitors use.

Types of Metallized Layer:

Base film	polypropylene film	Polyester film
Normal thickness	2.0μm ~12.0μm	1.9μm ~12.0μm
Margin type	Single margin
Coating metal	Zinc-Aluminum alloy
Coating side	Single
Edge structure	Heavy edge

  Square resistance:            Normal film Width and Margin

Note: If 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	175 220 280 320	±25mm ±20mm ±20mm ±20mm
Note: A pair tolerance of outside core diameter ≤2mm.

More type Metallised capacitor plastic film pictures:


Metallised capacitor film Application:
To produce all kinds of the film capacitors


Metallised capacitor film producinng and packing:

Specifications of metallized film:

Metallised polypropylene film (MPP Film):

Properties	Unit	Typical value
Density	g/cm^3	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	ºC	172
Volume Resistivity	Ω.m	>10^15
Break-dowm Voltage	V/µm	≥350 ( 23°C, DC )
Dielectric Constant		2.2  (20ºC,1KHz)
Dissipation Factor		≤4×10^-4 (20ºC,1KHz )
RC	ΩF	≥5×10^4

Metallised Polyester Film (MPET Film):

Properties	Unit	Typical value
Density	g/cm^3	1.4
Thickness	µm	<5	5~12	≥12
Tensile Strength	MD (MPa)	≥84	≥108	≥120
Elongation at Break	MD (%)	≥22	≥33	≥44
Elastic Modulus	MD (MPa)	3500
Break-dowm Voltage	V/µm	≥200  ( 23°C, DC )	≥250  ( 23°C, DC )
Heat Shrinkage	MD (%)	≤2.5 ( 150°C, 10min)
Surface Roughness	µm	0.095
Melting Point	ºC	256
Volume Resistivity	Ω.m	>10^15   ( 23°C, Humidity 50%)
Dielectric Constant		3.2  (20ºC,1KHz)
Dissipation Factor	-	≤60×10^-4  (20ºC,1KHz )
RC	ΩF	≥1×10^4

Packing:

• Film rolls are packed in plastic bags, vacuumed and put into desiccant for heat sealing.
• The Bags are marked with type labels, mark thickness width, free margin width and resistance.
• The bags are packed in carton cases.

The cartons are wrapped by wooden cases or reinforced carton.
Storage:

• Metallized film should be stored in its original package with temperature 5 - 35ºC and humidity less than 85%RH before using.
• Metallized layer is easily oxidized when exposure to moisture. Therefore, the film should be used as soon as possible when opened.
• The recommended temperature is 15 -25ºC with humidity less than 60%RH after opening
• With original sealed package, and stored as mentioned above, the storage time can be as following:

Al metallized film: 12 months from the delivery date. Al/Zn Alloy metallized film: As zinc is quite unstable , the storage period (from delivery date) depends on the resistance of the film:
≤10 Ω/square: 6 months
10 ~30Ω/square: 3 months
>30Ω/square: 1month
FAQ:
Ask: Which type of the metallized capacitor film your factory producing ?
Reply: Metallized polypropylene film & Metallised polyester film for capacitor use.

Ask: What are the thickness you are producing ?
Reply: Metallized polypropylene film from 2um to12um.
      Metallized polyester film from 1.9um-12um

Ask: If your factory could produce the wave cut metallized film ?
Reply: Yes, we could be according to your requirement to wave cut.

Ask:  For the metallized capacitor film are very easy oxidation, how do you protect the film and transport them safty to our factory ? 
Reply:  For our packing is as follows:
1.Roll films are packed in vacuum plastic bag and heat-sealed with desiccants.
2.Bags are marked with labels of types.
3.The bags are packed in carton cases.
4. The cartons are wrapped in wooden cases or reinforced carton.
   5. If the goods are bad of packing problems,we will Indemnify the goods.

Ask: what is the quantity for one 20ft container loading?
Reply: usually 7-8tons. (details according to your specification)