Double side welding Highly reflective polyester (Mylar) film for helium balloons
Highly reflective polymer (Mylar) film with aluminium on both sides
Our High reflective polyester film have high reflective ,Double side welding. It used for making helium ballom. It have very light weight , and high barrier of water and oxygen.It have adhesion between film and alumium layer after chemical treatment on the surface of film. Due to high adhesion of aluminium layer,No Al layer peels the shelf of life can be retained,
a higher barrier can be achieved by increasing the thickness of Al layer. strong water resistance ,high temperature resistance.
|
Item |
|
Unit |
Index |
Test conditions |
|
Tensile strength
|
MD |
Mpa |
210 |
Temperature 23°C Relativ humidity 40% |
|
TD |
Mpa |
202 |
||
|
Elongation at Break |
MD |
% |
115 |
|
|
TD |
% |
108 |
||
|
Friction of coefficient |
The surface without Al plating/surface without Al plating |
---- |
0.56 |
|
|
Equality of aluminized layer
|
% |
±5 |
||
|
Fastness of the aluminized layer
|
% |
No Aluminized layer peels |
||
|
Wetting tension of Aluminum layer
|
Mn/m |
54 |
||
|
Thickness of the aluminized layer |
A |
500 |
||
|
Moisture vapor transmission rate |
g/(m2·24h) |
0.58 |
Temperature 38°C Relaive humidity :91% |
|
|
Oxygen trnamission rate |
Cm3/(m2·24h·0.1Mpa) |
0.95 |
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