TPE Backsheet
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TPE Backsheet

JFPF Solar Cell Encapsulation Back-sheet is high performance protective layer compounded by Fluon ETFE film, moisture resistance PET and EVA. ETFE film is four-fluorine fluoroplastic which has outstanding resistance to weather and ageing, erosion resistance, moisture permeation resistance and excellent self-cleaning function, the perfect complex sheet plays an important function to EVA and solar cell silicon chip against medium such as water, oxygen and corrosive gas and liquid(such as: acid rain)

High Weather Resistance 1000 hours Damp Heat Test 85% 85℃, no discolor, no plunger separation. JFPF have obtained the TUV certificate which can be used for more than 25 years.

Good Moisture Barrier Properties  Moisture-vapor transmission ≤1.0g/m2d

Good Insulating Strength  Breakdown voltage≥28kv/mm, Max system voltage≥1140VDC

High Cohesive Strength  Adhesive Strength to EVA≥40N/10mm

JFPF Technical Data

Test Item

Unit

Data

Data

Test Method

Color

 

White

White

 

Thickness

mm

0.20±5%

0.35±5%

GB/T13541

Tensile Strength

Mpa

120

150

GB/T13541

Elongation at break

%

90

80

GB/T13541

shrinkage

%

1

1

GB/T13541

Continuous use temp

 -40-150

 -40-150

GB/T13541

EVA Adhesive Strength

N/10mm

40

40

GB/T1408.1

Permeability of water vapour

g/m2d

Appro×1.5

Appro×1.0

GB/T13541

Breakdown voltage

KV

19

28

GB/T1408.1

Max system voltage

VDC

705

1140

GB/T13541

Surface resistivity

Ω

6.9×1015

6.9×1015

GB/T1410

Electric strength

MV/m

95

95

GB/T13541

Size & Grade

Grade

Thickness(mm)

Width(m)

M/Roll

JFPF(white/black)

0.20±5%

0.5--1.00

100

JFPF(white/black)

0.35±5%

0.5--1.00

100