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The
Avdec™ family of laminates
The
design of a specific Avdec™ laminate is dependent on
the response frequencies to be damped, the operating temperature
and environment, and the structure of the component.
Arvinyl
offers Avdec™ laminate developed for three different
temperature ranges:
- L-35
and L-40A for operating temperature ranging from 50°F
to 150°F
- L-34
for operating temperatures ranging from 140°F to 225°F
*
- L-31
for operating temperatures ranging from 175°F to 275°F
*
Avdec™
laminates can be designed and developed for additional temperature
ranges to meet the needs of specific applications. After product
evaluation, the proper Avdec™ film is specified for the
given noise and vibration damping application. |
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Vibration
damping
effect
Environmental
noise reduction is a very important issue in today's world.
Arvinyl offers Avdec™ damping material as a versatile
new solution to noise pollution. Avdec™ damping material
is composed of a layer of visco-elastic material sandwiched
between two layers of metal. It converts vibrational energy
into heat
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energy
by shear deformation of the visco-elastic layer, resulting
in a significant reduction in sound and vibration levels.
Vibration-damping
properties are usually stated as a loss factor . This loss
factor is the ratio of energy dissipated per cycle to the
total energy of the vibration. It is stated by a formula:
In
the formula, E is total energy of the vibration and the  is
energy dissipated per cycle. The higher the loss factor, or
value of  ,
the greater the vibration-damping effect.
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