Ionomer

Polymer Type

Thermoplastic

Advantages

Good low temperature toughness.  Very good barrier properties (better than Polyethylene’s).  Transparent.  Good oil and solvent resistance   little tendency to solvent stress cracking.  Better puncture resistance than LDPE film.

Disadvantages

Poor resistance to acids. Similar (poor)weathering characteristics as Polyethylene.  Poor creep resistance.

Typical Properties

Property

Value

Density (g/cm3)

0.95

Surface Hardness

SD62

Tensile Strength (MPa)

25

Flexural Modulus (GPa)

0.3

Notched Izod (kJ/m)

0.5

Linear Expansion  (/°C x 10-5)

11

Elongation at Break (%)

400

Strain at Yield (%)

17

Max. Operating Temp. (°C)

50

Water Absorption (%)

0.4

Oxygen Index (%)

17

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

16

Dielectric Strength (MV/m)

35

Dissipation Factor 1kHz

0.003

Dielectric Constant  1kHz

2.4

HDT @ 0.45 MPa (°C)

50

HDT @ 1.80 MPa (°C)

20-

Material. Drying  hrs @ (°C)

NA

Melting Temp. Range (°C)

290 - 330

Mould Shrinkage (%)

1.5

Mould Temp. Range (°C)

40 -  40

Applications

Puncture resistant film for pouches and blister packs.  Bottles and containers, tool handles. Covers for golf balls and skittles.  Protective pads for shoes and boots. 

 

Source: Abstracted from Plascams

For more information on Plascams please visit The Rubber and Plastics Research Association

 

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