Fluorinated Ethylene-Propylene Resin (FEP) is a copolymer of TFE and HFP with good thermal stability, outstanding chemical inertness, good electrical insulation and low friction coefficient. It can be processed by thermoplastic processing method.
Application:
EW-521 is new product developed in 2015 with new process method and ingredients.With improved physical performance and crack resistance,EW-521 keeps good performance for dielectrical properties.Mainly used for the insulation of high speed and thin wires & cables with high requirement for crack resistance.
Technical Index:
|
NO. |
Item |
Unit |
Value |
Test Method |
|
1 |
Melt Flow Rate(MFR) |
g/10min |
20.1-36.0 |
ASTM D2116 |
|
2 |
Breaking Strength ≥ |
MPa |
22.0 |
ASTM D638 |
|
3 |
Elongation ≥ |
％ |
320 |
ASTM D638 |
|
4 |
Melting Point |
℃ |
255±10 |
ASTM D3418 |
|
5 |
Specific Gravity |
/ |
2.12-2.17 |
ASTM D792 |
|
6 |
Dielectric Constant(106Hz) ≤ |
/ |
2.15 |
ASTM D150 |
|
7 |
Dissipation Factor(106Hz) ≤ |
/ |
7.0x10-4 |
ASTM D150 |
|
8 |
MIT≥ |
Cycles |
4000 |
ASTM D2176 |
Recommended processing conditions:
Extruding Machine L/D: 25:1-30:1
Screw Compression ratio: 3:1
Equilibrium Ratio (DDR):120-150
DRB:1.0-1.05
Extrusion Speed:100-200m/min
It is corrosive to most metals, and anti-corrosion materials are suggested for the extruding machines,such as:HAC-276
Package:It is packed in PE bag and put in paper drum or in double-layer reinforced plastic bag, net wt. 25kgs/package.
Storage:Stored in clean, cool and dry places; avoid direct sunlight, moisture and dust.