6650 Polyimide Film/Polyaramid Fibre
Paper Flexible Laminate (NHN)
Standard No.: JB 4062.1-1995
 |
Polyimide film/polyaramid fibre paper flexible laminate (NHN) is a three-layer flexible laminate in which polyimide film(H) is bonded to two sides of polyaramid fibre paper(N).
1 Technical requirements
1.1 Type and specification are as shown in Form 1
Form 1
|
Type |
Specification mm |
Nominal thickness µm |
|
|
H one layer |
N two-layer(thickness of one layer) |
||
|
6650 |
0.20 |
0.05 |
80 |
|
0.25 |
0.05 |
80—100 |
|
|
0.30 |
0.05 |
130 |
|
1.2 General requirements
As per chapter 2 in GB 5591.1
1.3 Dimensions
Width: No less than 400mm Nominal weight: 10～40kg
The splices should be no more than 2 when the weight is no more than 20 kg, and the splices should be no more than 4 when the weight is above 20 kg.
1.4 Properties requirements
Properties are as shown in Form 2
Form 2
|
No. |
Properties |
Units |
Values |
||||||||||||
|
1 |
Nominal thickness |
mm |
0.15 |
0.17 |
0.20 |
0.23 |
0.25 |
0.30 |
0.33 |
||||||
|
2 |
Thickness tolerance |
mm |
±0.02 |
±0.03 |
±0.04 |
±0.05 |
|||||||||
|
3 |
Grammage |
g/m2 |
155±25 |
175±25 |
195±30 |
230±35 |
260±40 |
300±45 |
330±50 |
||||||
|
4 |
Tensile strength |
MD |
No bending |
N/10 mm |
≥120 |
≥140 |
≥160 |
≥180 |
≥200 |
≥250 |
≥270 |
||||
|
After bending |
≥70 ≥80 |
≥90 ≥90 |
≥90 ≥100 |
≥130 ≥110 |
≥150 ≥120 |
≥170 ≥150 |
≥180 ≥170 |
||||||||
|
TD |
No bending |
||||||||||||||
|
After bending |
≥50 |
≥70 |
≥80 |
≥80 |
≥100 |
≥110 |
≥130 |
||||||||
|
5 |
Elongation |
MD |
% |
≥10 |
|||||||||||
|
TD |
≥8 |
||||||||||||||
|
6 |
Breakdown voltage |
No bending |
kV |
≥8 |
≥9 |
≥10 |
|||||||||
|
After bending |
≥7 |
≥8 |
≥9 |
||||||||||||
|
7 |
Bonding property at room temp. |
不 分 层 No delamination |
|||||||||||||
|
8 |
C Bonding property at 200℃±2℃ 10min |
No delamination, no bubble, no adhesive flow |
|||||||||||||
|
9 |
Temperature index of heat resistance in a long term (TI) |
— |
≥180 |
||||||||||||
2 Testing methods
Temperature index is as per JB 3730. The other items are as per GB 5591.2-85.
3 Inspection, marks, package, transportation and storage
3.1 Inspection items are as per Clause 1.2, 1.3 and Item 2,4,6,7 of Form 2 in Clause 1.4.
3.2 The other items are as per GB 5591.1-1985
4 Remarks
This product is the highest level insulating material. It has excellent heat-resistance, electrical property and mechanical property. It is suitable for slot insulation, interphase insulation and liner insulation in Class H electrical motors and electrical apparatus. It can also be used in the special position of Class B/F electric motor and electric apparatus.