KOPLA PBT &PET

SORT

PBT UNFILLED GRADE

NEW

KBP1000

KBP1100

OLD

U140L

U140H

Properties

Test Method (ASTM)

Condition

unit

Injection Grade/PBT

Low Viscosity

High viscosity

Specific Gravity

D792

-

-

1.3

1.31

Water Absorption

D570

23°C, Water, 24h

%

0.1

0.1

Poisson's Ratio

D638

23°C

-

-

-

Molding Shrinkage(1/8')

D955

Flow

%

2.0-2.1

1.2-2.0

Xflow

%

-

-

Melting Point

DSC Method

-

°C

225

225

Heat Deflection Temperature

D648

4.6kgf/cm²

°C

174

154

18.6kgf/cm²

°C

61

57

Coefficient of Linear Thermal Expansion

D696

-

X10-5l/K

8

8

Tensile Strength

D638

23°C

Mpa

59

55

Tensile Modulus

D639

23°C

2800

2600

Tensile Elongation

D638

23°C

%

100

>100

Flexural Strength

D790

23°C

Mpa

86

85

Flexural Modulus

D790

23°C

Mpa

2500

2300

Izod Impact Strength

D256

Notched

Mpa

3.3

3.5

Rockwell Hardness

D785

R-scale

kJ/M^2

120

120

Flammability

UL94

-

-

HB

HB

Dielectric Constant

D150

10^6Hz

-

3.1

3.1

Dielectric Dissipation Factor

D150

10^6Hz

-

0.02

0.02

Volume Resistivity

D257

-

Ω·CM

1*10^17

1*10^17

Dielectric Strength

D149

-

KV/mm m

23

23