Detailed Photos
1. TPT solar backsheet: TPT is a polyvinyl fluoride composite film. Strictly speaking, TPT refers to a three-layer composite film of Tedlar+PET+Tedlar made of DuPont Tedlar.
2. TPE solar backsheet: This is a general term. Typically include block copolymers (styrenic resins, copolyesters, polyurethanes and polyamides), and thermoplastic elastomer blends and alloys (thermoplastic polyolefins and thermoplastic vulcanizates). Among them, block copolymers are relatively widely used. Contains styrenic and hydrogenated resins.
Product Parameters
| Item |
unit |
standard |
Specification Value |
| Thickness |
μm |
GB/T 13542.2-2009 |
303±5% |
| Tensile Strength |
MPa |
GB/T 13542.2-2009 |
TD ≥120 ;MD ≥120 |
| Elongation at break |
% |
GB/T 13542.2-2009 |
TD ≥100 ;MD ≥120 |
| Thermal shrinkage(150ºC×30min) |
% |
GB/T 13542.2-2009 |
-0.2≤ TD ≤0.2 ;MD ≤0.6 |
| Coating Adhesion |
Level |
GB/T 9286-1998 |
0 |
| Peel strength with EVA |
N/cm |
GB/T 2790-1995 |
≥65 |
| breakdown voltage |
KV |
GB/T 1408.1-2016 |
≥18 |
| Partial discharge voltage |
VDC |
IEC 60664-1-2007 |
≥1500 |
| water vapor transmission rate 38ºC×90%RH |
g/(m2·day) |
GB/T 26253-2010 |
≤2.0 |
| Boiling water treatment |
external assessment |
-- |
GB/T 17748-2008 |
No delamination, no blistering, no cracking |
| Peel strength with EVA |
N/cm |
≥40 |
| Hot and cold cycle test TC200 |
external assessment |
-- |
IEC 61215-2-2016 |
No delamination, no blistering, no cracking |
| yellowing |
-- |
≤2.0 |
| Peel strength with EVA |
N/cm |
≥40 |
| UV pretreatment 120KWH/m2 |
external assessment |
-- |
IEC 61215-2-2016 |
No delamination, no blistering, no cracking |
| yellowing |
-- |
≤2.0 |
| Constant damp heat test DH1000 |
external assessment |
-- |
IEC 61215-2-2016 |
No delamination, no blistering, no cracking |
| yellowing |
-- |
≤2.0 |
| Peel strength with EVA |
N/cm |
≥40 |
Production
FAQ
Q:What's your payment terms?
A:T/T,L/C,Paypal,Western Union etc.
Q:What are the advantages of your company?
A:We are a factory, and we also cooperate with other brands,such as Longi,JA solar,Jinko,Trina,Canadian Solar,GCL,SUNTECH,Yingli etc., to provide customers with better prices and more choices.
Q:May I have a piece of sample to check the quality?
A:Welcome to place the testing order to check the quality or for testing.
Q:How about the delivery time?
A:15-20 days after receiving your payment.
The specific delivery time depends on the items and the order quantity.
Q:Where is the port of loading?
A:Shanghai,Ningbo.
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