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In many packaging and industrial applications, there is a need
for structures combining multiple properties such as:
 Mechanical
strength,
Barrier
to oxygen or water vapor,
Flexibility
(or rigidity),
Moisture
and chemical resistance,
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Sealability
at high at low temperature,
Abrasion
resistance,
Gloss
surface,
Transparency
or Opacity.
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In many cases, the combination of these properties cannot be achieved by using
a single material. For this reason manufacturers propose multilayer structures
that exhibit a mix of the individual performances of the polymers involved in
the structure.
As most of the polymers are incompatible an adhesive layer also called tie
layer is needed to obtain sufficient cohesion. Figure 1 below show an example
of multilayer structure.
The use of multilayer materials is not limited to packaging.
Industrial applications such as fuel tanks, pipes, cables are also using complex
systems and adhesives layers are also required to guarantee structure integrity.
In this Tie-Layers Center, we propose you the following items:
If you need assistance on any problem related to multilayer structures or
tie layers you are welcome to use TechDirect our free on
line technical assistance service.
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