Hotline:
86-575-87380005
86-575-87380005
New
2016-06-12
The company imported eight EVA production lines from Italy, as well as a complete set of European EVA process technology. The annual output is 120 million square meters.
The production description:
Solar photovoltaic cell encapsulation film is heat extrusion film with the main material EVA(Ethylene Vinyl Acetate) and various additive. The film is non-viscosity at normal temperature, is easy for cutting and splitting operation. At present the film is used for encapsulation of solar battery panels. Firstly, cutting the required film size, and composite in alumium alloy frame by the procedure glass--film--battery panel-film- back panel; Secondly, placing in the lamination machine for heating--pressurizing--vacuumize; Finally, placing in the setting temperature curing oven for constant temperature in a period time.
Product characteristics
A: High light transmittance
B: Reasonable cross linking index
C:Excellent anti-ultraviolet and anti-thermal aging performance
D: Very low shrinkage rate
E: Strong adhesive performance
F:Excellent anti-PID performance
Product specification:
Width: 200-2100mm
Thickness: 0.3-0.8 μm
Technical Parameter
|
No |
Inspection item |
Test standard |
Unit |
Test index |
|
|
1 |
Vinyl acetate content |
GB/T 29848-2013 |
Weight distribution% |
28-32 |
|
|
2 |
· Light transmittance |
GB/T 2410-2008 |
% |
≥91 |
|
|
3 |
cross linking index |
GB/T 29848-2013 |
% |
≥85 |
|
|
4 |
Tensile strength |
GB/T 13022-91 |
MPa |
≥18 |
|
|
5 |
Elongation at break |
% |
≥500 |
||
|
6 |
Peel strength |
EVA/glass peel strength |
GB/T 2790 |
N/cm |
>60 |
|
EVA/back panel peel strength |
N/cm |
>50 |
|||
|
7 |
Shrinkage |
GB/T 29848-2013 |
% |
<3.0 |
|
|
<1.5
|
|||||
|
8 |
Breakdown voltage |
GB/T 1695-2005 |
Kv/mm |
≥28.0 |
|
|
9 |
Volume resistivity |
GB/T 1410-2006 |
Ωcm |
>1.0x1015 |
|
|
10 |
anti-ultraviolet aging test (280nm-400nm,1000h,60kwh/m2) |
GB/T 19394-2003 |
Peel strength of film and glass N/cm |
>40 |
|
|
Yellowing index |
<2.0 |
||||
|
11 |
Tepidity test (85℃/85%RH,1000h) |
GB/T 2423.3-2006 |
Peel strength of film and glass N/cm |
<2.0 |
|
|
Yellowing index |
|||||
Laminating process
|
Method Condition |
One-step |
Two-step |
|
|
Laminating machine |
Laminating machine |
Oven |
|
|
Setting temperature |
140-145℃ |
100-110℃ |
140℃ |
|
vacuumize |
5 minutes |
6minutes |
/ |
|
The first time pressing |
70KPa (each 10 second) |
40KPa |
/ |
|
The second time pressing |
40KPa ( each 10 second) |
/ |
/ |
|
The third time pressing |
0KPa |
/ |
/ |
|
Keeping pressure and curing |
8-12minutes |
8 minutes |
12minutes |
|
Remark:Laminating conditions appropriately adjusted according to differences in equipment and requirements. |
|||
Storage condition:
The product must be stored in a cool and dry place, storage period for 6 months since the date of production. Once the packaging is opened, the product should be used up within 48 hours. The unused part should be packed by original sealed packaging or similar packaging again.
The company self developed high-performance EVA solar encapsulation material on the basis of European process technology.
Hotline： (86)0571-89178550 No.5 Qianxi Road, Zhuji, Zhejiang province,China 311800
浙公网安备 33068102000775号 浙ICP备18044178号-1 Design：EWWWE
