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BOPET Photovoltaic Solar Cell Back Film

Application:
E511 white light-proof films are produced using an advanced manufacturing process, and are known for their superior mechanical property, excellent electrical insulation, excellent resistance to water vapor, superior heat and humidity resistance, good tear resistance and coating property and other advantageous features. BOPET photovoltaic solar cell back films are produced by special slice and are primarily used as the base film for a photovoltaic solar cell back material.

Structure Chart of BOPET Photovoltaic Solar Cell Back Film:
A: Anti-adhesion layer
B: PET film with hydrolysis resistant

Technical Parameter:
Properties Unit Typical value Test Method
Thickness μm 250 265 270 ASTM D347
Tensile Strength MD N/mm2 190 190 190 ASTM 882
TD N/mm2 210 210 210
Elongation at Break MD % 180 180 180
TD % 140 140 140
Thermal Shrinkage30Minute at 150℃ MD % 0.8 0.8 0.8 ASTM D1204
TD %
Transmittance % 30 30 30 ASTM D1003
PCT48(121℃,100%RH) % ＞30 ＞30 ＞30 GB/T13542.4-2009
Electric Strength KV/mm ＞16 ＞16 ＞16 GB/T13542.4-2009
Partial discharge VCD ＞1000 ＞1000 ＞1000 IEC61730-21-2004
Wetting Tension MN/m 56 56 56 ASTM D2578

The above data is the typical value of the BOPET film, which is for reference only rather than guaranteed value.

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