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 EVA
encapsulation sheet for solar cell
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Brief introduction |
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From December 2007 we research and
produce EVA encapsulation sheet for PV module. WL with
Dupont to develop high performence EVA encapsulation
sheet. WL EVA encapsulation sheet used 100% Dupont solar
grade EVA resin, and it is enhanced with a formulation
developed by Dupont. The technology comes from both
USA and Japan.
WL EVA sheet
is a heat melt adhesive film, no viscous and with anti-adhesive
at normal temperature, under certain conditions laminate
occurred melt adhesives and crosslinked curing. EVA
sheet is for encapsulating PV modules. Photovoltaic
system converts solar energy into the electricity.
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Production specification |
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Thickness |
Width |
Length |
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0.5mm |
1350mm
(Max) |
100m |
Notice:The size (thickness, width,
length) of EVA sheet according to customer's specifications
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Main Characteristics of EVA sheet |
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1. Light Transparence: ¡Ý 95%;
2. Water Absorption (20¡æ, 24h): ¡Ü0.1%
3. Gel Content: ¡Ý85%
4. Peeling strength (N/cm): glass/sheet¡Ý35 ; TPT/sheet¡Ý25
5. Ultraviolet Aging Resistance (at 1000h, 83¡æ,
1000W Ultraviolet Lamp):¡÷YI(yellow index) ¡Ü 1
6. Heat Aging Resistance (at 1000h, 85¡æ): ¡÷YI
¡Ü 2
7. Damp-Heat Aging Resistance (at 1000h, 90% Relative
Humidity, 85¡æ): ¡÷YI ¡Ü 2
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¢ô Production use |
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value:at 145¡æ temperature laminate and solidify 15 minuter,
at 140¡æ temperature laminate and solidify 20 minuter,
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¢õ Packing and storage |
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packing:outside with paper box and
inside with aluminum of plastic film.
storage:it should be stored and transported
at 25¡æ temperature and no light, and must insure the
packing full as stored and transported.
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