Pebax® MH 1657

Alternative and trade names
TPA
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Description

Polyether block amide Pebax® MH 1657 resin is a thermoplastic elastomer made of flexible polyether and rigid polyamide.

Pebax® MH 1657 resin is an inherently dissipative polymer and can be dry blended or compounded with an isolative polymer to lower the surface resistivity of the final part. This hydrophilic grade when extruded into either a thin film or laminated on to a substrate also offers excellent permeability to moisture vapor while remaining waterproof.

This material data has been provided by Arkema Technical Polymers.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyValueConditionTesting Standard

Density

1.14 g/cm³

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dry

ISO 1183

Moisture absorption

4.5 %

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Sim. to ISO 62

Water absorption

120 %

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Sim. to ISO 62

Mechanical

PropertyValueConditionTesting StandardComment

Elastic modulus

0.08 GPa

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cond.

ISO 527-1/-2

0.09 GPa

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dry

ISO 527-1/-2

Elongation

50 %

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cond., dry

ISO 527-1/-2

min.

Impact strength, Charpy notched

No Break at 23°C

dry and cond.

ISO 179/1eA

Impact strength, Charpy unnotched

No Break at 23 and -30°C

dry and cond.

ISO 179/1eU

Thermal

PropertyValueConditionTesting StandardComment

Glass transition temperature

-40 °C

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dry

ISO 11357-1/-2

10°C/min

Melting point

204 °C

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dry

ISO 11357-1/-3

10°C/min

Electrical

PropertyValueConditionTesting Standard

Surface resistivity

1.5e+09 Ω/sq

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cond.

IEC 60093

Volume resistivity

2e+07 Ω·cm

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cond.

IEC 60093

Technological properties

Property
Application areas

Breathable Films - Housewrap,Permanent Antistatic Solutions,Sports Equipment,Permanent Antistatic Solutions E&E

Processing methods

Injection Molding:

  • Typical melt temperature (Min / Recommended / Max): 230°C / 240°C / 260°C.
  • Typical mold temperature: 25–60°C.
  • Drying time and temperature (only necessary for bags/containers opened for more than two hours): 5-7 hours at 70-90°C.


    Extrusion:

  • Typical melt temperature (Min / Recommended / Max): 230°C / 250°C / 280°C.
  • Drying time and temperature (only necessary for bags/containers opened for more than two hours): 5-7 hours at 70-90°C.