JP6789122B2 - 光起電力モジュールの封止材 - Google Patents
光起電力モジュールの封止材 Download PDFInfo
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- JP6789122B2 JP6789122B2 JP2016573899A JP2016573899A JP6789122B2 JP 6789122 B2 JP6789122 B2 JP 6789122B2 JP 2016573899 A JP2016573899 A JP 2016573899A JP 2016573899 A JP2016573899 A JP 2016573899A JP 6789122 B2 JP6789122 B2 JP 6789122B2
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Description
現在、大部分の光起電力封止市場は、EVAをベースとする処方に対応しており、これに過酸化物、シラン及び様々な機能性添加剤が添加されている。
− 組成物の重量の70%から96%の間を占めるエチレン/アクリル酸アルキルコポリマー、
− 組成物の0.1%から2%の間を占めるシラン
を含む組成物からなる、光起電力セルを封入することが意図された光起電力モジュールの封止材において、
前記組成物が、前記組成物の重量の2%から29.9%の間を占めるエチレン/アクリル酸エステル/無水マレイン酸又はメタクリル酸グリシジルターポリマーを付加的に含むことを特徴とする、封止材に関する。
− どのような環境条件であろうとも、その使用中の、酢酸、より一般的にはあらゆる酸の出現の不可能性;
− 組成物フィルムの押出パラメータに関しての非常に大きな許容範囲及び積層段階に関しての時間のかなりの節約;
− 特に光起電力モジュールの封止材としての使用における、組成物の寿命を通しての組成物の優れた接着特性の維持;
− EVAをベースとする現在の解決策(架橋剤及びシラン)と少なくとも同じ程度に満足のいく、優れた熱機械的特性及び物理化学的特性の維持。
− 有利には、上記ターポリマーは、前記組成物の重量の8%から22%の間を占める;
− 好ましくは、上記コポリマーについて、エチレンの重量による含有量は60%から85%の間、好ましくは70%から84%の間であり、アクリル酸アルキルの重量による含有量は15%から40%の間、好ましくは16%から30%の間である;
− 有利には、シランは、エポキシシラン又はアミノシランからなる;
− 後者の場合、有利には、シランは、(3−グリシジルオキシプロピル)トリエトキシシランからなる;
− 上記コポリマーは、前記組成物の75重量%から95重量%の間で存在する;
− 本発明により提供される可能性の1つによれば、組成物は、上記コポリマー、上記ターポリマー及び上記シランのみからなる;
− 1つの実施態様によれば、組成物は、付加の特定の特性を与えることが意図された添加剤、特に可塑剤、接着促進剤、UV安定剤及び吸収剤、酸化防止剤、難燃剤並びに/又は充填剤を付加的に含む。
従来、特に温度が非常に高くなる場合、EVAベースの封止材の熱機械的特性を調整するために架橋が必要である。この場合、本発明の文脈においては、架橋は必要でなく、単に従来の化学的相互作用及び反応が、官能化ポリオレフィン(ターポリマー)とエチレン/アクリル酸アルキルコポリマーの間、及び官能化ポリオレフィンとシランの間で起こる。
Lotryl(登録商標)20MA08:エチレン/アクリル酸メチルコポリマー、このアクリル酸エステルの含有量は、コポリマーの20重量%であり、このMFIは、8g/10分(190℃、2.13kg)である。それは、
・管型プロセス:融点=96℃
・オートクレーブプロセス:融点=75℃
によって得ることができる。以下に提示される結果の表において、このLotryl(登録商標)は、管型プロセスにより得られた場合は20MA08T及びオートクレーブプロセスにより得られた場合は20MA08Aの頭文字で表示される。
・管型プロセス:融点=93℃
・オートクレーブプロセス:融点=68℃
によって得ることができる。以下に提示される結果の表において、このLytryl(登録商標)は、管型プロセスにより得られた場合は24MA02T及びオートクレーブプロセスにより得られた場合は24MA02Aの頭文字で表示される。
フィルムの調製:
封止材フィルムは、含浸ポリマー顆粒の押出しによって得られ:Lotryl又はEvatane顆粒の含浸によりシラン及び適当ならば、過酸化物が添加される。顆粒及び液体をフラスコに入れ、フラスコを1分当たり60回転の速度でおよそ3時間ロールミキサー上に位置付ける。
処方を特徴付けするために、試験モジュールを高温積層により得る。
− クリープ及び透過による光学特性の測定:ガラス(4mm)/封止材フィルム/ガラス(4mm)
− 反射による光学特性の測定:ガラス(4mm)/封止材フィルム/KPKバックシート(PVDF/PET/PVDF)
− 接着の測定:ガラス(4mm)/封止材フィルム/Apolhyaバックシート。
本発明は、以下の非限定的な実施例によってより詳細に例証される。
構造体の促進老化は、DHT(「加湿加温試験」)により行う。すべての構造体を85℃及び85%RH(相対湿度)で調節された環境制御チャンバに入れる。この老化は、2000時間続く。モジュールの黄色度指数(YI)の変化をこのDHTの間モニターする。
黄色度指数YIは、Minoltaブランドの分光比色計を使用し、規格ASTM E313に従って、ガラス/封止材/バックシート構造体に対して測定する。この測定に使用したバックシートは、KPK(PVDF/PET/PVDF)である。測定条件は以下の通りである:
・波長:360nm−740nm(ナノメートル)
・光源:C
・角度:2°
・測定開口部:MAV8mm(ミリメートル)
・バックグラウンド:「Cera」白色シート
この試験のために選択した値は、DHT条件下で2000時間老化後の、YIの変化、ΔYIである。
ΔYI=YI2000時間−YI0時間
クリープ試験は、ガラス/封止材/ガラス構造体(ガラスシートは、長さL=70mmを有する)に対して行う。積層後、試験モジュールを、水平と70°の角度を形成する金属構造体の上に配置する。各モジュールを、第1のガラス層の厚さの一部に及ぶ端部によって固定する。
封止材とガラスの間の接着のレベルは、Zwick 1445万能試験機で50mm/分(1分当たりミリメートル)で行われる90°剥離試験からガラス/封止材/バックシート構造体に対して測定する。この測定に使用したバックシートは、本出願人により製造及び販売されるApolhya(登録商標)からなる単層である。この測定条件は以下の通りである:
・クロスピースの変位速度:50mm/分
・試験片の切り出された幅:10mm
・剥離角度:90°
接着結果は、N/mmで表す。
− DHT2000時間後の黄色度指数は、3未満でなければならない。
− このような構造体及び用途のための接着性は、5N/mmより大きくなければならない。
− クリープは、3ミリメートル未満でなければならない。
Claims (9)
- 架橋剤を含まず、
− 組成物の重量の70%から96%の間を占めるエチレン/アクリル酸アルキルコポリマー、
− 組成物の重量の0.1%から2%の間を占めるシラン
を含む組成物からなる、光起電力セル(10)を封入することが意図された光起電力モジュール(20)の封止材(22)において、
前記組成物が、前記組成物の重量の2%から29.9%を占めるエチレン/アクリル酸エステル/無水マレイン酸又はメタクリル酸グリシジルターポリマーを付加的に含むことを特徴とする、封止材(22)。 - 前記ターポリマーが、前記組成物の重量の8%から22%の間を占めることを特徴とする、請求項1に記載の封止材(22)。
- 前記コポリマーについて、エチレンの重量による含有量が60%から85%の間、好ましくは70%から84%の間であり、アクリル酸アルキルの重量による含有量が15%から40%の間、好ましくは16%から30%の間であることを特徴とする、請求項1又は2に記載の封止材(22)。
- 前記シランが、エポキシシラン又はアミノシランからなることを特徴とする、請求項1から3の何れか一項に記載の封止材(22)。
- 前記シランが、(3−グリシジルオキシプロピル)トリエトキシシランからなることを特徴とする、請求項4に記載の封止材(22)。
- 前記コポリマーが、前記組成物の75重量%から95重量%の間で存在することを特徴とする、請求項1から5の何れか一項に記載の封止材(22)。
- 前記組成物が、付加的な特定の特性を与えることが意図された添加剤、特に可塑剤、接着促進剤、UV安定剤及び吸収剤、酸化防止剤、難燃剤並びに/又は充填剤を付加的に含むことを特徴とする、請求項1から6の何れか一項に記載の封止材(22)。
- 光起電力モジュール(20)における、請求項1から7の何れか一項に記載の封止材(22)の使用。
- 少なくとも1つの封止材(22)と、フロントシート(24)又はバックシート(26)との組合せからなる構造体を含む光起電力モジュール(20)において、前記封止材(22)が請求項1から7の何れか一項に記載の封止材(22)であることを特徴とする、光起電力モジュール(20)。
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FR1455583A FR3022545B1 (fr) | 2014-06-18 | 2014-06-18 | Encapsulant d'un module photovoltaique |
FR1455583 | 2014-06-18 | ||
PCT/FR2015/051507 WO2015193581A1 (fr) | 2014-06-18 | 2015-06-08 | Encapsulant d'un module photovoltaïque |
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WO2020198953A1 (en) * | 2019-03-29 | 2020-10-08 | Dow Global Technologies Llc | Pv module with film layer comprising hydrophilic fumed silica |
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JP2001077390A (ja) * | 1999-06-30 | 2001-03-23 | Canon Inc | 太陽電池モジュール |
US6414236B1 (en) * | 1999-06-30 | 2002-07-02 | Canon Kabushiki Kaisha | Solar cell module |
US7112624B2 (en) * | 2001-01-19 | 2006-09-26 | Exxonmobil Chemical Patents, Inc. | Ethylene alkyl acrylate copolymers with improved heat resistance |
WO2003099930A1 (en) * | 2002-05-23 | 2003-12-04 | E. I. Du Pont De Nemours And Company | Toughened thermoplastic polyamide compositions |
US7879949B2 (en) * | 2004-10-06 | 2011-02-01 | E.I. Du Pont De Nemours And Company | Blends of ethylene copolymers with high-frequency weldability |
EP1709116B1 (en) * | 2004-01-08 | 2009-05-13 | E.I. Du Pont De Nemours And Company | Composition comprising ethylene copolymers and polyolefin |
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US20080255303A1 (en) * | 2007-04-13 | 2008-10-16 | Chou Richard T | Blends of polyolefins, polar ethylene copolymers and functionalized ethylene copolymers |
FR2930556B1 (fr) | 2008-04-28 | 2012-08-17 | Arkema France | Composition a base de polymere greffe polyamide et son utilisation dans les modules photovoltaiques |
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US8080727B2 (en) * | 2008-11-24 | 2011-12-20 | E. I. Du Pont De Nemours And Company | Solar cell modules comprising an encapsulant sheet of a blend of ethylene copolymers |
WO2010095603A1 (ja) * | 2009-02-17 | 2010-08-26 | 三井・デュポンポリケミカル株式会社 | 太陽電池封止材用シート及び太陽電池モジュール |
WO2010124189A1 (en) * | 2009-04-23 | 2010-10-28 | Bemis Associates, Inc. | Polymeric encapsulants for photovoltaic modules and methods of manufacture |
JP5588433B2 (ja) * | 2009-05-13 | 2014-09-10 | 三井・デュポンポリケミカル株式会社 | 太陽電池封止材用シート及び太陽電池モジュール |
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TW201109350A (en) * | 2009-07-31 | 2011-03-16 | Du Pont | Cross-linkable encapsulants for photovoltaic cells |
JP2011176273A (ja) * | 2010-01-26 | 2011-09-08 | Sekisui Chem Co Ltd | 太陽電池用封止材、太陽電池保護シート及び太陽電池モジュールの製造方法 |
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ES2687078T3 (es) | 2018-10-23 |
CN106459532B (zh) | 2022-08-23 |
CA2951486A1 (en) | 2015-12-23 |
BR112016029075B1 (pt) | 2021-07-06 |
FR3022545A1 (fr) | 2015-12-25 |
CN106459532A (zh) | 2017-02-22 |
EP3157999A1 (fr) | 2017-04-26 |
KR102372762B1 (ko) | 2022-03-10 |
US20170125620A1 (en) | 2017-05-04 |
WO2015193581A1 (fr) | 2015-12-23 |
US11532764B2 (en) | 2022-12-20 |
KR20170020456A (ko) | 2017-02-22 |
BR112016029075B8 (pt) | 2021-12-07 |
EP3157999B1 (fr) | 2018-07-25 |
JP2017521860A (ja) | 2017-08-03 |
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