PV backsheet

Loading Port:China Main Port

Payment Terms:TT OR LC

Min Order Qty:-

Supply Capability:-

PART1:Introduction:

We supply the backsheet for solar cell modules that has excellent long-term reliability,stability.

It has been recognized by module manufacturers around the world and boasts more than 13 years of proven results.

Our backsheet has a high adhesiveness to EVA and various sealants.

PART2: Special features:

1. A great variety of backsheet are available: TPT, PVDF,FFC, TPE,PET patterns etc,

2. A membrane-adhesive integrated structure with fluorine coating on both sides of the backsheet.

3. Applying the technology of plasma chemical modification and fluorosilicone surface graftingWhite backshe

4. White backsheet enjoys high-reflective effect

5. Made-to-order backsheet with under 1,300mm is available.

6. A wide range of thickness from 0.26-0.33mm based on customization.

PART 3: Technical Characteristics

Item		Unit	Quoted Standard	Value
Film thickness	Nominal thickness	μm	GB/T 13542.2-2009	300
Film thickness	Nominal tolerance	-	-	±5%
Tensile strength（MD）		N/mm²	GB/T 13542.2-2009	151
Tensile strength（TD）		N/mm²	GB/T 13542.2-2009	168
Elongation at break（MD）		%	GB/T 13542.2-2009	153
Elongation at break（TD）		%	GB/T 13542.2-2009	120
Heat shrinkage 150℃×30min（MD）		%	GB/T 13542.2-2009	0.38
Heat shrinkage 150℃×30min（TD）		%	GB/T 13542.2-2009	0
Coating adhesion		Grade	GB/T 9286-1998	0 Grade
Peeling strength with EVA（Initial）		N/10mm	GB/T 2790-1995	75
Breakdown voltage strength		KV/mm	GB/T 13542.2-2009	21.8
Partial discharge		VDC	IEC60664-1	1077
Moisture vapor transmission rates		g/m²·d	GB/T 26253-2010	1.42
Damp-heat testing （85℃×85%RH,2000h）		-	IEC 61215-2005	Δb≤2 No delamination ,no bubble
Radiation exposure (QUVB, 4000h)		-	GB/T 16422.3-1997	Grade 4
UV pretreatment（15kwh）		-	IEC 61215-2005	Δb≤2 No delamination , bubble or fold
Super UV（65℃×65%RH，60kwh）			GB/T 16422.2-1999	Δb≤2 No delamination ,no bubble