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SunevaTechnicalmanual

By Pedro Carpenter,2014-05-15 10:06
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SunevaTechnicalmanual

    Ver. 1.4

    JH-40NF, JH-40NS

    (no shrinkage grade)

    SUNEVA

    Solar cell encapsulants

    Technical manual

    JIN HEUNG INDUSTRIAL CO., LTD

    Head office & Factory

    Jin Heung Industrial Co. Ltd,

    506-4, Paltan Myun Yulam Ri,

    Hwasung Shi, Kyunggi Do,

    Korea

    Tel. No.82-31-352-7751

    Fax. No 82-31-352-7754 Introduction

    www.taelastic.com

SUNEVA is the trade name of encapsulating materials for solar module.

SUNEVA has been developed by JinHeung with Korea Institute Energy

    Research (KIER) in 2007. 10.

SUNEVA with 28% VA

    ? Excellent transparency.

    ? Excellent durability.

    - 1 -

    (Weather resistance, high & low cycle resistance)

    ? Good dimensional stability during lamination.

Discoloration as the lamination conditions (gel fraction, especially excess curing) are very

    little.

    - High temp. & high humidity test(85?×85% humidity) ; the most of discoloration occurs during 0 ~ 400HR, and unsuitable curing cause increcing of

    ?YI(yellow index)

This is the most significant factor in selecting the encapsulant.

    Encapsulants for Solar Cells

    Value

    JH-40NF JH-40NS Contents Test method Unit (fast cure) (standard cure)

    No shrinkage grade No shrinkage grade

    VA contents wt% 28 28

    Melting point ASTM D 3418 ? 71 71

    MFR(before ASTM D 1238 g/10min 20 20 crosslinking)

    3Density ASTM D 792 g/cm 0.96 0.96

    Water absorption ASTM D 570 % 0.1 0.1 (2324HR)

    Tensile strength ASTM D 638 MPa 25 25 (after crosslinking)

    Elongation at break ASTM D 638 % 600 610 (after crosslinking)

    Refractive index ASTM D 542 1.482 1.482

    Adhesion strength to 0.4mm N/cm 17 17 glass

    Adhesion strength to 0.6mm N/cm 22 22 glass

    Light transmittance ASTM E 424 % 91 91

    - 2 -

    High temp, high 1000HR +2 +2 humidity (Low iron ?YI Under Under (8585%) glass)

    800HR UV resistance (Naked cure % 80? 80? (Tensile strength) EVA)

    Proper Gel contents % 80~88 80~85 This information only be regarded as a general guide to material and not as a guarantee.

    Lamination condition - Test piece: 20cm×40cm, 3t glass + EVA sheet + 0.15t Teflon sheet

    Gel contents: toluene 60? × 16HR

    Specifications

    Items Specification

    Thickness(mm) 0.4, 0.45, 0.6

    Width(mm) 1000mm

    Customizable specs.

    Maximum width currently(mm) 1150mm

    Length(m) 100m

    The term of validity 6 month

    Packaging Matt. Aluminum vacuum bag

    - 3 -

    Crosslinking rate (Laboratory test)

    JH-40NF

    (150? Hot plate-0.15mm Teflon sheet-EVA-0.15mm Teflon sheet-Hot plate)

    JH-40NS

    (150? Hot plate-0.15mm Teflon sheet-EVA-0.15mm Teflon sheet-Hot plate)

    Lamination conditions (JH-40NS)

    Grade JH-40NS

    - 4 -

Preheating Temp 45?

    Hot plate Temp 140?

    Vacuum pump time 4min

    Press time(hold) 2min

    Oven cure time 30min

    Laminating condition (JH-40NF)

    Lamination Test machine Pre heating temp Pumping time Press time temp

    150? 5min 13min

    Nisshinbo Ind. 45? 160? 5min 11min Model No. Lam 580N

    165? 5min 10min

    Gel contents: JH-40NF - 80~88%

    3t×1600mm×800mm glass - 0.2t Teflon sheet EVA Cell EVA Back sheet

    JH-40NF

    (Nisshinbo Ind. Model No. Lam580N)

    - 5 -

    160cm×800mm×3mm Glass - 0.2mm Teflon sheet EVA(0.4t×2) 0.2mm Teflon sheet

    160cm×800mm×3mm Glass - 0.2mm Teflon sheet EVA(0.4t×2) 0.2mm Teflon sheet

    Adhesion strength to glass

    - 6 -

    Initial gel contents: JH-40NF 84%

    Lamination condition: temp - 155?, Pump - 5min(pin 2min), Press - 2m 30s, Hold - 10min

    Tensile strength

    Initial gel contents: 88%

    Gel contents & ?YI(8585% Humidity)

    ?YI ?YI ?YI ?YI ?YI ?YI ?YI Gel after after after after after after after contents 400hr 800hr 1000hr 1500hr 1900hr 2800hr 3200hr

    - 7 -

    92% 1.1 1.2 1.4

    90% 1.1 1.4 1.5 JH-40NF 88% 1.2 1.3 1.7 (Fast 85% 1.1 1.1 1.3 cure) 82% 1.0 1.0 1.2

    79% 1.0 1.3 1.9

    JH-40NS

    (Standard 81% 0.9 1.0 1.2

    cure)

     Backsheet: 3M backsheet(EVA PET THV)

     Discoloration as the lamination conditions (gel fraction, especially excess curing) are

    very little.

    - High temp. & high humidity test(8585% humidity); the most of discoloration occurs during 0 ~ 400HR, and unsuitable curing cause increcing of ?YI(yellow index)

    - 8 -

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