供应氟塑料FEP-CJ95

DuPont Teflon® FEP CJ-95

Product Information

Description

DuPont™ Teflon® FEP CJ-95 is a melt-processible

fluoropolymer resin specifically designed for cable

insulation and jacketing applications that demand

a high degree of stress crack resistance.

As shown in Table 1, this resin provides the

electrical and mechanical properties needed for

low-voltage applications. Teflon® FEP CJ-95 has a

higher melt flow rate than Teflon® FEP 140, but it

retains similar stress crack resistance.

Table 1

Typical Properties of DuPont™ Teflon® FEP CJ-95

Fluoropolymer Resin

ASTM

Property Test Method Unit Value

Electrical

Dielectric Constant D1531

100 kHz (105 Hz) 2.02

1 MHz (106 Hz) 2.02

Dissipation Factor D1531

100 kHz (105 Hz) N/A

1 MHz (106 Hz) 0.0007

Dielectric Strength D149

10-mil Film V/mil 2000

1/8-in Sheet V/mil 500

Mechanical

Melt Flow Number D2116 g/10 min 5

Specific Gravity D762 — 2.12–2.17

Tensile Strength D1708 MPa 26

psi 3770

Elongation D1708 % 300

Hardness, Durometer D2240 — D55

Thermal

Melting Point D2116 °C 255

°F 490

Teflon® FEP CJ-95 can be processed by conventional

thermoplastic techniques, melt extrusion and

transfer molding. It shows, compared to Teflon®

FEP 140, a higher MFR and critical shear rate at

processing temperatures. In similar constructions,

it can be processed at much higher rates and line

speeds. The final product will show comparable

physical properties. It can be used in place of

Teflon® FEP 100 when the application requires a

higher degree of stress crack resistance.

DuPont™ Teflon® FEP Family

Stress crack resistance is an important element in

establishing end-use performance. Extensive testing

of wire and cable constructions is required for definitive

performance evaluation. However, the MIT

folding endurance or flex life test (ASTM D2176),

when performed on a thin film of resin, can have a

good correlation with extensive cable testing. The

higher the MIT flex life, the higher the stress crack

resistance of the resin. The folding endurance of the

high productivity grade Teflon® FEP CJ-95 is marginally

inferior to Teflon® FEP 140. DuPont does,

however, always recommend, in particular for

applications involving repeated thermal and flex

cycling, to undertake more extensive and more specific

tests on the final product itself. The MIT test

results should be viewed as a guide to comparative

performance of the various grades of resin.

Like all Teflon® fluoropolymer resins, Teflon® FEP

CJ-95 offers an excellent combination of properties:

chemical inertness, exceptional dielectric properties,

heat resistance, toughness, flexibility, low coefficient

of friction, nonstick characteristics, negligible

moisture absorption, low flammability, performance

at temperature extremes, and weather resistance.