solar backsheet of PV modules PPE type

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Product Description:

INTRODUCTION: PET polyester film in the intermediate layer has good insulating properties;

PET film of excellent weather resistance serves as a protective film in outer layer. The backsheet of this kind possesses excellent stability and is suitable for a wide range of solar modules package.

Technical Features:

Table 1: PPE Technical Data Sheet

NO.

 Item

Unit

Technical Requirements

Inspection Method

1

Appearance

- 

no folding, bubbles, scratch, foreign object.

Methord

2

Thickness

um

390±10%

ASTM -D2305

3

Tensile Strength

MD

N/cm

300

ASTM -D882

TD

N/cm

300

4

Elongation at Break

MD

%

100

ASTM -D882

TD

%

60

5

Heat Shrinkage Rate

MD

%

1.5

150/30min

TD

%

1.5

6

Backsheet/EVA Adhesion Strength

N/cm

40

Methord

7

PET/HR-PET Adhesion Strength

N/cm

4

Methord

8

PET/PE Adhesion Strength

N/cm

4

Methord

9

Backsheet/Silicone Gel Adhesion Strength

- 

NO peel

15Kg/30min

10

Water Vapor Transmission Rate

g/m2.day

2

ISO 15106.3

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