PCTFE

MFR

≤3

2-4

4-6

6-8

≥9

Specific gravity

2.12-2.16

ASTM D792

Crystallinity

40-80

%

Molding shrinkage

0.015-0.020

cm/cm

Refraction index

1.425

ASTM D542

Water absorption

0

%

ASTM D570

Mechanical properties

Value

Unit

Test method

Tensile strength

31.4-37.2

Mpa

ASTM D638

Elongation

50-200

%

ASTM D638

Flexural strength

67.6-72.5

MPa

ASTM D790

Compression strength

400-450

MPa

ASTM D695

Tensile modulus of elasticity

(13-15)*103

MPa

ASTM D638

Compression modulus of elasticity

(14-16)*102

MPa

ASTM D695

Flexural modulus elasticity

(16-19)*102

MPa

ASTM D790

Impact strength

2.5-3.5

ft-1b/in

ASTM D256

Hardness

85-95

shore

ASTM D676

Deformation under load

0.2

%

ASTM D621

Thermal properties

Value

Unit

Test method

Specific heat

0.22

cal/g/°C

Thermal conductivity

(4.7-5.3)*10-4

cal/sec/°C

ASTM C177

Thermal expansion

(4.5-7.0)*10-5

˚C/cm

ASTM D696

Melting temperature

210-212

˚C

Z.S.T

200-300

sec

ASTM D1430

Electrical properties

Value

Unit

Test method

Dielectric constant (60Hz)

2.24-2.8

ASTM D150

Dielectric constant (103Hz)

2.3-2.7

ASTM D150

Dielectric constant (105Hz)

2.3-2.5

ASTM D150

Dielectric dissipation factor

0.023-0.027

ASTM D150

Dielectric strength

12

kv/0.1mm

ASTM D149

Arc resistance

>360

sec

ASTM D495

Volume resistivity

>1016

ohm-cm

ASTM D257

Surface resistivity

>1014

ohm

ASTM D257