Styrene-Ethylene-Butylene-Styrene Based Thermoplastic Elastomer - SEBS TPE 55A.

Polymer Type

Thermoplastic

Advantages

Better tensile strength, flexural modulus and mould shrinkage compared with SEBS TPE 45A.

Disadvantages

Lower elongation at break than SEBS TPE 45A.

Typical Properties

Property

Value

Density (g/cm3)

0.9

Surface Hardness

SA55

Tensile Strength (MPa)

8

Flexural Modulus (GPa)

0.08

Notched Izod (kJ/m)

1.06+

Linear Expansion  (/°C x 10-5)

15

Elongation at Break (%)

700

Strain at Yield (%)

N/Y

Max. Operating Temp. (°C)

85

Water Absorption (%)

0.3

Oxygen Index (%)

18

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

16

Dielectric Strength (MV/m)

25

Dissipation Factor 1kHz

0.0006

Dielectric Constant  1kHz

2.2

HDT @ 0.45 MPa (°C)

20-

HDT @ 1.80 MPa (°C)

20-

Material. Drying  hrs @ (°C)

NI

Melting Temp. Range (°C)

200 - 240

Mould Shrinkage (%)

1

Mould Temp. Range (°C)

50 -  70

Applications

Unit soles, shower tubing, baby teats, pipe seal gaskets, syringe seals.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

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