PBT, non-reinforced, injection molding, extrusion ISO Shortname: ISO 7792-1-PBT, GHMR, 11-030

Property

Test Condition

Unit

Standard

guide value

Rheological properties

C Melt volume-flow rate

250 °C; 2.16 kg

cm³/(10 min)

ISO 1133-1

16

C Molding shrinkage, parallel

60x60x2; 250 °C / WZ 80°

C; 600 bar

%

ISO 294-4

2.1

C Molding shrinkage, transverse

60x60x2; 250 °C / WZ 80°

C; 600 bar

%

ISO 294-4

2.1

Post- shrinkage, parallel

60x60x2; 120 °C; 4 h

%

ISO 294-4

0.2

Post- shrinkage, transverse

60x60x2; 120 °C; 4 h

%

ISO 294-4

0.2

Mechanical properties (23 °C/50 % r. h.)

C Tensile modulus

1 mm/min

MPa

ISO 527-1,-2

2700

C Yield stress

50 mm/min

MPa

ISO 527-1,-2

60

C Yield strain

50 mm/min

%

ISO 527-1,-2

9.0

C Nominal strain at break

50 mm/min

%

ISO 527-1,-2

>15

C Tensile creep modulus

1 h

MPa

ISO 899-1

2200

C Tensile creep modulus

1000 h

MPa

ISO 899-1

1300

C Charpy impact strength

23 °C

kJ/m²

ISO 179-1eU

N

C Charpy impact strength

-30 °C

kJ/m²

ISO 179-1eU

180

C Charpy notched impact strength

23 °C

kJ/m²

ISO 179-1eA

< 10

C Charpy notched impact strength

-30 °C

kJ/m²

ISO 179-1eA

< 10

Izod impact strength

23 °C

kJ/m²

ISO 180-1U

N

Izod impact strength

-30 °C

kJ/m²

ISO 180-1U

150

Izod notched impact strength

23 °C

kJ/m²

ISO 180-1A

< 10

Izod notched impact strength

-30 °C

kJ/m²

ISO 180-1A

< 10

Izod notched impact strength

-40 °C

kJ/m²

ISO 180-1A

< 10

Flexural modulus

2 mm/min

MPa

ISO 178-A

2650

Flexural strength

2 mm/min

MPa

ISO 178-A

90

Flexural strain at flexural strength

2 mm/min

%

ISO 178-A

6.0

Flexural stress at 3.5 % strain

2 mm/min

MPa

ISO 178-A

80

Ball indentation hardness

N/mm²

ISO 2039-1

120

C Puncture energy

23 °C

J

ISO 6603-2

22

C Puncture energy

-30 °C

J

ISO 6603-2

32

C Puncture maximum force

23 °C

N

ISO 6603-2

3650

C Puncture maximum force

-30 °C

N

ISO 6603-2

5191

Thermal properties

C Melting temperature

10 °C/min

°C

ISO 11357-1,-3

225

C Temperature of deflection under load

1.80 MPa

°C

ISO 75-1,-2

60

C Temperature of deflection under load

0.45 MPa

°C

ISO 75-1,-2

150

C Temperature of deflection under load

8.00 MPa

°C

ISO 75-1,-2

45

Property

Test Condition

Unit

Standard

guide value

C Coefficient of linear thermal expansion, parallel

23 to 55 °C

10-4/K

ISO 11359-1,-2

1.2

C Coefficient of linear thermal expansion, transverse

23 to 55 °C

10-4/K

ISO 11359-1,-2

1.2

C Burning behavior UL 94

1.5 mm

Class

UL 94

HB

C Burning behavior UL 94

0.75 mm

Class

UL 94

HB

C Oxygen index

Method A

%

ISO 4589-2

24

Thermal conductivity

23 °C

W/(m·K)

ISO 8302

0.25

Resistance to heat (ball pressure test)

°C

IEC 60695-10-2

190

Temperature index (Tensile strength)

20000 h

°C

IEC 60216-1

150

Halving interval (Tensile strength)

°C

IEC 60216-1

12.6

Relative temperature index (Tensile strength)

°C

UL 746B

140

Temperature index (Tensile impact strength)

20000 h

°C

IEC 60216-1

135

Halving interval (Tensile impact strength)

°C

IEC 60216-1

12

Relative temperature index (Tensile impact strength)

°C

UL 746B

125

Temperature index (Electric strength)

20000 h

°C

IEC 60216-1

150

Halving interval (Electric strength)

°C

IEC 60216-1

12.6

Relative temperature index (Electric strength)

°C

UL 746B

140

Glow wire test (GWFI)

2.0 mm

°C

IEC 60695-2-12

750

Burning behavior US-FMVSS302

ISO 3795

passed

Electrical properties (23 °C/50 % r. h.)

C Relative permittivity

100 Hz

-

IEC 60250

3.4

C Relative permittivity

1 MHz

-

IEC 60250

3.2

C Electric strength

1 mm

kV/mm

IEC 60243-1

30

C Comparative tracking index CTI

Solution A

Rating

IEC 60112

600

Electrolytic corrosion

Rating

IEC 60426

A 1

Other properties (23 °C)

C Water absorption (Saturation value)

Water at 23 °C

%

ISO 62

0.5

C Water absorption (Equilibrium value)

23 °C; 50 % RH

%

ISO 62

0.2

C Density

kg/m³

ISO 1183

1310

Bulk density

kg/m³

ISO 60

800

Processing conditions for test specimens

C Injection molding-Melt temperature

°C

ISO 294

250

C Injection molding-Mold temperature

°C

ISO 294

80

Processing recommendations

Drying temperature circulating air dryer

°C

-

120

Drying time circulating air dryer

h

-

4-8

Residual moisture content

%

Acc. to Karl Fischer

0-0.02

Melt temperature (Tmin - Tmax)

°C

-

250-260

Mold temperature

°C

-

80-100