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Cross-linked ethylene-tetrafluoroethylene heat shrink tubing
Cross-linked ethylene-tetrafluoroethylene heat shrink tubing
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Application areas:
WF—High-temperature resistant polytetrafluoroethylene (PTFE) tubing, PTFE sheathing, Teflon sheathing
Product Description
Product Introduction:
Cross-linked ethylene-tetrafluoroethylene (CTFE) heat shrink tubing is a thin-walled heat shrink tubing made by irradiation modification of ethylene-tetrafluoroethylene. It possesses high flame retardancy, high abrasion resistance, cut resistance, and solvent resistance, and can be used for extended periods at high temperatures. It is widely used for the protection of welded joints, terminals, and connecting cables exposed to high temperatures, industrial fuels, solvents, and chemical reagents.
Features :
Reference standard: GJB 7270-2011
Shrinkage ratio: 2:1 3:1
High temperature resistance, high strength, high flame retardancy, and strong corrosion resistance.
Initial shrinkage temperature: ≥ + 200℃
Full shrinkage temperature: ≥ + 260℃
Operating temperature: -65℃ to +200℃
Environmental Standard: RoHS
Standard color: White (other colors can be customized)
Product Parameters
Technical indicators
|
performance |
index |
Test methods |
|
density |
≤1.78g/ cm³ |
Clause 4.5.6 of GJB 7270-2011 |
|
Longitudinal change rate |
-10% to +10% |
Clause 4.5.7 of GJB 7270-2011 |
|
Water absorption rate |
≤0.5% |
(23℃ x 24h) GJB7270-2011 Clause 4.5.9 |
|
Tensile strength |
≥34.5MPa |
Clause 4.5.10 of GJB 7270-2011 |
|
Elongation at break |
≥200% |
Clause 4.5.11 of GJB 7270-2011 |
|
Breakdown voltage |
≥11kV |
Clause 4.5.12 of GJB 7270-2011 |
|
Volume resistivity |
≥1.0×10 14 Ω·cm |
Clause 4.5.14 of GJB 7270-2011 |
|
Liquid resistance |
Tensile strength retention ≥75% |
Clause 4.5.15 of GJB 7270-2011 |
|
Elongation at break retention ≥75% |
||
|
Flame retardancy |
Self-extinguishing within 15 seconds |
GJB 7270 4.5.17 Method C |
|
thermal aging |
Tensile strength retention ≥75% |
250 ℃×168h GJB 7270-2011 Clause 4.5.19 |
|
Elongation at break retention ≥75% |
||
|
thermal shock |
No cracks, no flow, no dripping |
(300℃ x 4h) GJB 7270-2011 Clause 4.5.18 |
|
Low temperature flexibility |
No cracks |
( -65 ℃ x 4h) GJB 7270-2011 Clause 4.5.20 |
|
High and low temperature shock |
Tensile strength retention ≥75% |
(-65℃~200℃) GJB 7270-2011 Clause 4.5.21 |
|
Elongation at break retention ≥75% |
||
|
Mold resistant |
Level 1 or below |
Clause 4.5.22 of GJB 7270-2011 |
|
Salt spray |
Elongation at break ≥150% |
Clause 4.5.23 of GJB 7270-2011 |
|
humid heat |
Elongation at break ≥150% |
Clause 4.5.24 of GJB 7270-2011 |
Product Selection
|
Specification |
Supply inner diameter mm |
Fully shrunk dimensions |
tubular |
Standard packaging Rice/plate |
|
|
Inner diameter/mm |
Wall thickness/mm |
||||
|
Φ1.2/0.6 |
≥1.2 |
≤0.6 |
0.25±0.10 |
round |
200 |
|
Φ1.6/0.8 |
≥1.6 |
≤0.8 |
0.25±0.10 |
round |
200 |
|
Φ2.4/1.2 |
≥2.4 |
≤1.2 |
0.25±0.10 |
round |
200 |
|
Φ3.2/1.6 |
≥3.2 |
≤1.6 |
0.25±0.10 |
round |
100 |
|
Φ4.8/2.4 |
≥4.8 |
≤2.4 |
0.30±0.10 |
round |
100 |
|
Φ6.4/3.2 |
≥6.4 |
≤3.2 |
0.30±0.10 |
round |
100 |
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