Irradiation Cross-linkable XETFE Insulating Compound

YHS-ETFEX200

Irradiation cross-linkable ethylene-tetrafluoroethylene copolymer (XETFE) compound (YHS-ETFEX200) is based on ETFE resin, formulated with crosslinking agents, stabilizers and other additives, manufactured by mixing, plasticizing and granulation. It supports a continuous operating temperature up to 200°C, featuring low density, superior mechanical strength, ageing resistance, radiation resistance and excellent chemical solvent resistance. Designed primarily as insulation for aerospace wires and cables, it is also suitable for other high-temperature and severe-environment applications including nuclear power, military projects, automotive, locomotive and oil mining cables.

✦ Irradiation cross-linkable XETFE ✦ ETFE cable compound ✦ 200℃ high temperature fluoropolymer ✦ Aerospace wire insulation ✦ Radiation resistant ETFE ✦ Chemical solvent resistant fluoroplastic

Data

Application

Type	Product	Application and Cable Specification
YHS-ETFEX200	Irradiation cross-linkable ethylene-tetrafluoroethylene copolymer (XETFE) insulating compound	Insulating compound for aerospace wire and cable whose operation temperature up to 200℃.

Technical Data

Technical Specifications

Typical physical property data, subject to batch test reports.

Item	Unit	Standard	Typical
Color	-	-	Natural color, White color
Density	g/cm³	-	1.77
Volume Resistivity	Ω·cm	≥1×10¹⁴	1.5×10¹⁶
Dielectric constant	pF/cm	-	2.2
Dielectric loss	-	-	1.5×10⁻³
Electrical breakdown strength	kV/mm	-	26
Tensile Strength (Before irradiation)	MPa	-	44
Tensile Strength (After irradiation)	MPa	≥35	43
Elongation at Break (Before irradiation)	%	-	400
Elongation at Break (After irradiation)	%	≥75	130
Melt Flowing Index	g/10min	-	42

Recommended

Extrusion Process

It is recommended that compound should be processed with anticorrosive extruder having a minimum L/D ratio of 23.

The following temperature(℃) profile of extruder is recommended:

Zone 1	Zone 2	Zone 3	Zone 4	Head	Die
265℃	270℃	275℃	280℃	285℃	285℃

Processing Guide

Recommended Processing Parameters

Meet below standards

National military standard GJB 773A-2000 Part 20-23
American military standard MIL-DTL-22759-2004 Part 32-46
Society of Automotive Engineers (SAE) Aerospace standard SAE AS 22759-2006 Part 32-46

Irradiated dosage

The normal irradiated dosage (recommended) of irradiation cross-linkable ethylene - tetrafluoroethylene copolymer (XETFE) insulating compound is 10 to 20 megarad.

Storage/Package

Packaging：Packed in fibre drum of 20kg net, lined with plastic bag.
Storage and transport: Avoiding in direct sunlight and weathering. The storage place should be in clean, cool, dry, and ventilated conditions.

Safety and health

This product will volatilize toxic gases during high temperature processing, so please pay attention to ventilation during the processing, and operators should wear protective articles such as masks.