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white polyester film 
Detail
Code: film Series: film
Spec: 0.125-0.35mm Material: polyimide
Color: whit Brand: Plastics

White polyester film is used for solar battery back materials.

Properties

Units

Typical Values

Methods

Thickness

TD

μm

125

188

250

DIN53370

Tensile Strength

MD

N/mm²

165

150

150

ASTM D882

TD

N/mm²

200

210

215

ASTM D882

Elongation

MD

%

135

140

160

ASTM D882

TD

%

96

98

110

ASTM D882

E Module

MD

N/mm²

/

/

/

ASTM D882

TD

N/mm²

/

/

/

ASTM D882

Light transmittance

TD

%

92

99

100

ASTM D1003

Haze

TD

%

65

58

53

ASTM D1003

Heat shrinkage 150℃/30min

MD

%

1.0

1.0

1.0

BMSTT11

TD

%

0

-0.1

-0.1

BMSTT11

Wetting tension

TD

mN/m

58

58

58

ASTM D2578

Frequency electric strength


V/um

≥90

≥85

≥70

GB12802.2-2004

Water vapor rate


g/m².24

≥90

≥85

≥70

GB12802.2-2004