Dental Tooth Materials PEEK R&D Series

Material Properties

Test Method

Conditions

Units

770G

Mechanical Data

Tensile Strength

ISO 527

B reak,23℃

MPa

-

Y ield,23℃

MPa

100

Tensile Elogation

ISO 527

Break,23℃

%

45

Flexural Strength

ISO 178

Break,23℃

MPa

-

Y ield,23℃

MPa

165

Fleoural Modulus

ISO 178

23℃

Gpa

4.1

Compressive Strength

ISO 604

23℃

MPa

125

Charpy Impact Strength

ISO 179/leA

Notched

kJm-2

7

ISO 179/IU

Unnotched

kJm-2

-

Izod Impact Strength

ISO 180/A

Notched

kJm-2

7.5

ISO 180/U

Unnotched

kJm-2

-

Mould Shrinkage

ISO 294-4

Along flow

%

1

Across flow

%

1.3

Thermal Data

Melting Point

ISO 11357

℃

343

Glass Tansition (Tg)

ISO 11357

Onset

℃

143

Special Heat Capacity

DSC

23℃

kj kg-1℃-1

2.2

Coefficient of Thermal Expansion

ISO 11359

Along flow below Tg

ppm K-1

45

Along flow above Tg

ppm K-1

120

Heat Deflecion Temperature

ISO 75A-f

1.8Mpa

℃

152

Thermal Conductivity

ASTM C177

23℃

W m-1K-1

0.29

Flow

MeltIndex

ISO 1133

380℃,5kg

g10min-1

10

Miscellaneous

Density

ISO 1186

Crystalline

gcm-3

1.3

Amorphous

gcm-3

1.26

Shore D Hardness

ISO 868

23℃

85

Water Absorption(3.2mm thick Tensile Bar)

ISO 62-1

24h,23℃

%

0.07

by immersion

Equilib riu m,23℃

%

0.4

Electrical Data

Dielectric Strength

IEC 60243-1

2mm

kV mm-1

23

Comparative Tracking Index

IEC 60112

V

150

Dielectric Constant

IEC 60250

23℃,1kHz

3.1

23℃,50kHz

3

Loss Tangent

IEC 60250

23℃,1MHz

0.004

Volume Resistivity

IEC 60093

23℃,1V

Ω cm

10 16

275℃

Ω cm

10 9