DMD Epoxy Pre-preg(Insulation Material)
DMD epoxy pre-preg is composition of ployester mylar non-woven fabric soften composite material with impregnation of heat-resistant epoxy resin produced by baking. this product is applicable for wrapping insulation, liner insulation,slot insulation in electric motors.
1. class F, 3 layers composite material
2. a high mechanical strength
3. excellent dielectric
4. adhesive capability
Performance Guide
|
No.
|
Name
|
Unit
|
0.16
|
0.18
|
0.20
|
0.23
|
0.25
|
0.30
|
0.40
|
|
|
1
|
Appearance
|
|
The surface of pre-preg must be smooth, resin is evenly scattered.
No impurity can be found which would affect the performance of the product.
No folding mark, bubble, or corrugation when opening the pre-preg .
|
|||||||
|
2
|
Size
|
Bundle Weight
|
kg
|
≤60
|
||||||
|
Bundle No.
|
|
≤3,each in length of 10m and above.
The end of bundle is attached firmly with heat-resistance tape.
|
||||||||
|
Standards of Supply
|
|
Supply in bundles, or cut into reels as if required.
|
||||||||
|
Reel No.
|
|
≤5,the end of reel is attached firmly with heat-resistance tape.
|
||||||||
|
3
|
Thickness & Tolerance
|
mm
|
±0.02
|
±0.03
|
±0.04
|
|||||
|
4
|
Stretch Strength in horizon
|
N/10mm
|
≥40
|
≥70
|
≥80
|
≥100
|
≥120
|
≥140
|
||
|
5
|
Content of Resin
|
g/m2
|
75±15
|
|||||||
|
6
|
Content of Volatile Matter
|
%
|
≤1.5
|
|||||||
|
7
|
Content of Soluble Resin
|
%
|
≥80
|
|||||||
|
8
|
Dielectric Strength
|
KV/
mm
|
≥40
|
|||||||
|
9
|
Stretch Shearing Strength
|
MPa
|
≥3.0
|
|||||||
|
10
|
Suggested curing condition
|
|
130~150°C/3~5h
|
|||||||