Perfluorinated ethylene-propylene (FEP) for wire and cable is the copolymer of

 

tetrafluorothylene (TFE) and hexafluoropropylene (HFP) with excellent thermo-

 

stability, outstanding chemical inertness, low friction coefficient, distinctive air ag-

 

ing resistance, vapor penetrating resistance, non-inflammability and superior

 

electrical insulation. It is nearly stabilized in rather wide ranges of temperature and

 

frequency. And it can be widely used as wire and cable in the field of aircraft,

 

spacecraft, communication, computer, electricity instrument, high buildings and

 

high temperature up to 200? for a long time, etc, due to its excellent interruption

 

& shielding resistance to communication signals. The thermoplastic process

 

techniques can be used to fabricate useful products from FEP.

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Items	Index
	EW-1	EW-2	EW-3	EW-4	EW-5
Appearance	Clean semitransparent pellet
Melt flow rate ?g/10min?	2.1~4.0	4.1~8.0	8.1~12.0	12.0~20.0	20.1~27.0
Tensile strength ?MPa?≥	25	21	20	18	18
Elongation at break % ≥	300	300	300	280	288
Melting point???	265±10	265±10	265±10	255±10	255±10
S.S.G	2.12~2.17
Volatile  %≤	0.10
Thermo-stress craze resistance	Very good	Very good	Good	ÂÂ	ÂÂ
Volume resistance ?ÃÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂŽ©Ã‚·cm?	1×1016
Breaking down  voltage?KV/mm?	20~24
Dielectric constant ?106HZ?≤	2.10
Dielectric loss tangent?106HZ?	3.0×10-4			4.0×10-4
Purposes	Thick layer wire and cable	Wire and cable for general purpose	Thin layer wire	Wire by high-speed excursion	Thin layer wire by high-speed excursion
Items	Index
	EW-1	EW-2	EW-3	EW-4	EW-5
Appearance	Clean semitransparent pellet
Melt flow rate ?g/10min?	2.1~4.0	4.1~8.0	8.1~12.0	12.0~20.0	20.1~27.0
Tensile strength ?MPa?≥	25	21	20	18	18
Elongation at break % ≥	300	300	300	280	288
Melting point???	265±10	265±10	265±10	255±10	255±10
S.S.G	2.12~2.17
Volatile  %≤	0.10
Thermo-stress craze resistance	Very good	Very good	Good	ÂÂ	ÂÂ
Volume resistance ?ÃÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂŽ©Ã‚·cm?	1×1016
Breaking down  voltage?KV/mm?	20~24
Dielectric constant ?106HZ?≤	2.10
Dielectric loss tangent?106HZ?	3.0×10-4			4.0×10-4
Purposes	Thick layer wire and cable	Wire and cable for general purpose	Thin layer wire	Wire by high-speed excursion	Thin layer wire by high-speed excursion