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Acrylonitrile/Methylacrylate copolymer ( Barex - impact modified copolymer )

Material Information

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Granule Sheet
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Common Brand Names:
Barex
 
General Description:  

A melt-processable, impact modified copolymer of acrylonitrile and methylacrylate typically containing 60 - 70% of acrylonitrile. It was developed to combine the excellent barrier properties of acrylonitrile (not melt-processable as a homopolymer) with melt processability. In addition to good barrier properties - better than PA and PET though not as good as PVDC - it has good chemical resistance and is used for a wide range of packaging applications.

   

Chemical Resistance

Acids - concentrated Good
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Good
Greases and Oils Good
Ketones Fair

Electrical Properties

Volume resistivity ( Ohmcm ) 1.9x1013

Mechanical Properties

Compressive strength ( MPa ) 83.0
Elongation at break ( % ) 3
Hardness - Rockwell M60/R115
Izod impact strength ( J m-1 ) approx.100
Tensile modulus ( GPa ) approx.3
Tensile strength ( MPa ) 66

Physical Properties

Density ( g cm-3 ) 1.15
Refractive index 1.511

Thermal Properties

Coefficient of thermal expansion ( x10-6 K-1 ) 0.665
Heat-deflection temperature - 0.45MPa ( C ) 77
Heat-deflection temperature - 1.8MPa ( C ) 69
Specific heat ( J K-1 kg-1 ) 1800
Thermal conductivity @0.17C ( W m-1 K-1 )

Properties for Acrylonitrile/Methylacrylate copolymer Film

Property Value
Permeability to Oxygen @25C x10-13 cm3. cm cm-2 s-1 Pa-1 0.004
Permeability to Water @38C x10-13 cm3. cm cm-2 s-1 Pa-1 600
All information and technical data are given as a guide only. Although every effort has been made to ensure that the information is correct, no warranty is given as to its completeness or accuracy.

Buy Acrylonitrile/Methylacrylate copolymer on-line

We stock and supply the following standard forms:
Granule Sheet
Granule Sheet

Choose a form to search our on-line catalog  

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