SOLAR EVA FILM
Inner packaging material suitable for crystalline silicon solar cell photovoltaic power generation assembly.With VA contentof 30%~33% EVA resin as the main raw material, with high light transmittance, strong bonding, anti-aging characteristics
Hangzhou Dongguang
Technology Co., Ltd.
PRODUCT
EVA
EVA FILM main raw material:
ethylene vinyl acetate copolymer.
Production process :
coating by mixing, extrusion, embossing, cutting
Advantage of EVA
1 high transparency and elongation
2 good durability: high temperature and ultraviolet
3 compared to the PVB has a stronger noise effects, especially high frequency of sound
Product Structure:
Product Category:
DG-707 Normal
DG-808 High Transparent
DG-808C UV-Cutoff
DG-909 Anti-PID
Product Parameter:
|
Unit |
Checking Method |
DG-707 |
DG-808 |
DG-808C |
DG-909 |
|
|
EVA |
High Transparent EVA |
High Transparent EVA |
Anti-EVA |
|||
|
Thickness |
mm |
GB/T 6672 |
0.2-0.8 |
0.2-0.8 |
0.2-0.8 |
0.2-0.8 |
|
Shrinkage |
MD ％ |
135℃，3min |
3.0 |
3.0 |
3.0 |
3.0 |
|
EVA/Glass Peel Strength |
N/cm |
GB/T 2790 |
60 |
60 |
60 |
60 |
|
EVA/back sheet Strength |
N/cm |
GB/T 2790 |
40 |
40 |
40 |
40 |
|
Degree of Cross Linking |
％ |
Solvent Extraction |
>75 |
>75 |
>75 |
>75 |
|
Volume Resistivity |
Ω·cm |
High Resistance Meter |
4.5×1014 |
4.5×1014 |
4.5×1014 |
1.0×1015 |
|
Light Transmittance |
％ |
Spectropholometer |
>90 |
>91 |
>91 |
>91 |
|
UV-Cut |
nm |
UV-Vis |
360nm |
320nm |
360nm |
360nm |
|
VA Contant |
% |
TGA |
28~32 |
28~32 |
28~32 |
28~32 |
|
UV yellowness index |
△YI |
CIE 1976 |
≤5 |
≤5 |
≤5 |
≤5 |
|
Yellowness index |
△YI |
CIE 1976 |
≤5 |
≤5 |
≤5 |
≤5 |
Attention:
1 storage: stored in a cool dry place, temperature ≤30℃, the humidity ≤60℃;
Avoid direct sunlight, not close to the heating equipment and dust and other pollution places
2 transport: should avoid light, avoid heat, avoid the tide transport, flat stacking, stacking height shall not be more than three,
Do not bend or pack the product.
3 is not used for direct contact with the film surface, so as not to affect the bonding performance
4 do not force pull the film, so as not to produce a variant, the impact of performance
5 do not make the product damp, open the packaging or cut, should be used up as soon as possible
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