|
Standard number:2006 GB/T13542.6-2006
Application range: The polyimide film is to be produced by cast method, which has High temperature resistance, resistance to radiation and excellent dielectric properties, applicable to electrical insulating of the class H electric motor and other electrical equipments , and other use electrical insulating materials.
A. Technical requirements
1. Appearance:Film surface is bright and clean, not due, tear, particle, bubbles,
Pinhole and foreign material defects ;Edge is tidy, without damage; Films supply in rolls.
2. Size
2.1. Thickness and allowable deviation:
|
The standard thickness(um)
|
12.5
|
25
|
40
|
50
|
75
|
100
|
125
|
175
|
200
|
|
The allowable deviation(um)
|
+1
|
+2
|
+2
|
+2
|
+3
|
+4
|
+4
|
+5
|
+5
|
|
-1
|
-1
|
-2
|
-2
|
-3
|
-3
|
-4
|
-5
|
-5
|
Note:Supplying according to customer request with thickness 12.5-22.5 um, allowable deviation can be negotiated by both sides.
2.2. Width: no less than 250 mm, deviation +/-1.6mm. According to the needs of the users, tape can be cut with different specifications.
2.3. Length: Supplying according to the requirement of customer.
2.4. Performance requirements
|
Serial number
|
Index name
|
Unit
|
Index
|
|
25um
|
40um
|
50um
|
75um
|
100um
|
|
1
|
density
|
Kg/m³
|
1425±10
|
|
2
|
tensile strength
|
horizontally
|
Mpa
|
≥165
|
|
vertically
|
|
3
|
elongations
|
horizontally and vertically
|
%
|
≥40
|
≥50
|
|
4
|
shrinkage rate horizontally
and vertically 150℃ 400℃
|
%
|
≤0.35 ≤2.5
|
|
5
|
industrial frequency electric strength
48H2～62H2
|
v/um
|
≥240
|
≥200
|
≥180
|
≥160
|
|
6
|
surface resistance,200℃
|
Ω
|
≥1.0X1014
|
|
7
|
Volume resistance,200℃
|
Ω.M
|
≥1.0X1010
|
|
8
|
Relative permittivity
48～62Hz
|
-
|
3.5±0.4
|
|
9
|
dielectric power factor
48～62Hz
|
-
|
≤4.0X103
|
|
10
|
long-term heat resistance temperature index
|
-
|
≥180
|
| |
|
|
|
|
|
|
|
|
|
B. Packaging, Marks, Storage and Transport
1. Film should be wrapped in a tube on core and supply in rolls; Each volume in a plastic bag packing and seal, placing in dry and clean case
2. Each box packaging should specify model or type, product name, specification, batch number, gross weight, net weight, manufacturing date, manufacture’s name, and product test report. At the same time, marked "Moisture proof" "Prevent Impact" and other words in packing body.
3.Film should be stored in a dry and clean indoor, from the date of original shipment, shelf life for two years, more than storage life according to the standard check again, qualified can still use.
4. In storage and transport process, should avoid damp and mechanical damage.
|
