Window film polyester based film is mainly used for automotive and architectural glass film. It is a high-performance film with polyester as the main component, with excellent light transmittance and UV resistance. Its structure is usually composed of multiple layers of polyester film, ensuring good physical strength and durability. This film is not only lightweight, but also has good adhesion and thermal stability, and can adapt to various climate conditions.
The schematic diagram of the conventional 8-layer window film structure is shown below.
PET base film structure diagram
Our window film polyester base film mainly includes three models: SFW11 with normal definition, SFW21 with high definition and SFW31 with ultra-high definition.
Among them, the main features of SFW11 model are: low surface roughness, good flatness, good temperature resistance and good surface quality.
Data Sheet
The thickness of SFW11 includes:25μm, 36μm and 50μm etc.
|
PROPERTY |
UNIT |
TYPICAL VALUE |
TEST METHOD |
|||
|
THICKNESS |
µm |
23 |
36 |
50 |
ASTM D374 |
|
|
TENSILE STRENGTH |
MD |
MPa |
181 |
203 |
180 |
ASTM D882 |
|
TD |
MPa |
251 |
258 |
250 |
||
|
ELONGATION |
MD |
% |
159 |
176 |
152 |
|
|
TD |
% |
102 |
113 |
120 |
||
|
HEAT SHRINKAGE |
MD |
% |
1.12 |
1.11 |
1.02 |
ASTM D1204 （150℃×30min） |
|
TD |
% |
0.27 |
0.11 |
0.14 |
||
|
THE COEFFICIENT OF FRICTION |
μs |
— |
0.37 |
0.47 |
0.39 |
ASTM D1894 |
|
μd |
— |
0.28 |
0.35 |
0.33 |
||
|
TRANSMITTANCE |
% |
90.7 |
90.6 |
90.5 |
ASTM D1003 |
|
|
HAZE |
% |
1~2 adjustable |
||||
|
WETTING TENSION |
dyne/cm |
52 |
52 |
52 |
ASTM D2578 |
|
|
APPEARANCE |
— |
OK |
EMTCO METHOD |
|||
|
REMARK |
Above is the typical values, not guarantee values. If customers have special requirements, according to the technical contract execution. |
|||||
Wetting tension test is only applicable to corona treated film.
In addition to the products introduced in this article, our company also has many other specifications of polyester films, polyester chips and other insulation products, electronic materials, etc. Welcome to visit our homepage for more information:www.dongfang-insulation.com.
Post time: Sep-26-2024
