JP6280901B2 - 太陽電池封止材シート用エチレンビニルアセテート共重合体樹脂およびその製造方法 - Google Patents
太陽電池封止材シート用エチレンビニルアセテート共重合体樹脂およびその製造方法 Download PDFInfo
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- 229920005989 resin Polymers 0.000 title claims description 86
- 239000011347 resin Substances 0.000 title claims description 86
- 239000005038 ethylene vinyl acetate Substances 0.000 title claims description 67
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 title claims description 66
- 238000004519 manufacturing process Methods 0.000 title claims description 26
- 239000008393 encapsulating agent Substances 0.000 title claims description 11
- 238000006116 polymerization reaction Methods 0.000 claims description 24
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 19
- 239000003999 initiator Substances 0.000 claims description 17
- 238000009826 distribution Methods 0.000 claims description 15
- 150000002978 peroxides Chemical class 0.000 claims description 14
- -1 peroxydicarbonate compound Chemical class 0.000 claims description 10
- 239000000155 melt Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000000178 monomer Substances 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- 239000003566 sealing material Substances 0.000 claims description 4
- 239000002952 polymeric resin Substances 0.000 claims description 2
- 230000000379 polymerizing effect Effects 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 44
- 238000000034 method Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000003475 lamination Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- ZACVGCNKGYYQHA-UHFFFAOYSA-N 2-ethylhexoxycarbonyloxy 2-ethylhexyl carbonate Chemical compound CCCCC(CC)COC(=O)OOC(=O)OCC(CC)CCCC ZACVGCNKGYYQHA-UHFFFAOYSA-N 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- OPQYOFWUFGEMRZ-UHFFFAOYSA-N tert-butyl 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOC(=O)C(C)(C)C OPQYOFWUFGEMRZ-UHFFFAOYSA-N 0.000 description 4
- FVQMJJQUGGVLEP-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy 2-ethylhexaneperoxoate Chemical compound CCCCC(CC)C(=O)OOOC(C)(C)C FVQMJJQUGGVLEP-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229920006026 co-polymeric resin Polymers 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 239000003431 cross linking reagent Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010292 electrical insulation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- JJRDRFZYKKFYMO-UHFFFAOYSA-N 2-methyl-2-(2-methylbutan-2-ylperoxy)butane Chemical compound CCC(C)(C)OOC(C)(C)CC JJRDRFZYKKFYMO-UHFFFAOYSA-N 0.000 description 1
- AQKYLAIZOGOPAW-UHFFFAOYSA-N 2-methylbutan-2-yl 2,2-dimethylpropaneperoxoate Chemical compound CCC(C)(C)OOC(=O)C(C)(C)C AQKYLAIZOGOPAW-UHFFFAOYSA-N 0.000 description 1
- IFXDUNDBQDXPQZ-UHFFFAOYSA-N 2-methylbutan-2-yl 2-ethylhexaneperoxoate Chemical compound CCCCC(CC)C(=O)OOC(C)(C)CC IFXDUNDBQDXPQZ-UHFFFAOYSA-N 0.000 description 1
- YASBMYKWWGRXHP-UHFFFAOYSA-N 2-tert-butylperoxy-2-methylpropane;3,5,5-trimethylhexanoic acid Chemical compound CC(C)(C)OOC(C)(C)C.OC(=O)CC(C)CC(C)(C)C YASBMYKWWGRXHP-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005227 gel permeation chromatography Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 229950010765 pivalate Drugs 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/02—Polymerisation in bulk
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/02—Ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/28—Oxygen or compounds releasing free oxygen
- C08F4/32—Organic compounds
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/52—Encapsulations
- H01L33/56—Materials, e.g. epoxy or silicone resin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
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Description
管型反応器を利用したEVA樹脂を生産するにあたり、低いせん断速度(shear rate)領域で一定範囲のTanδの流変特性を有する樹脂を製造して既存樹脂対比熱収縮率が低くネックインが改善された太陽電池封止材用シートとして用いられるEVA樹脂を提供することにある。
25〜33重量%のビニルアセテートモノマーを含むエチレンビニルアセテート共重合体樹脂であって、
前記エチレンビニルアセテート共重合体樹脂は100℃でレオメータ(Rheometer)で測定したTanδ値が周波数(rad/s)領域1以下で下記式(1)を満足し、
前記Tanδは、樹脂の粘弾性特性を弾性特性である貯蔵弾性率G’、および、粘性特性を示す損失弾性率G”の比であり、溶融指数(MI)とせん断速度(周波数:frequency)の関数で表したものであり、
前記エチレンビニルアセテート共重合体樹脂はZ平均分子量(Mz)が220,000g/mol以下であり、
前記エチレンビニルアセテート共重合体樹脂は分子量分布(Mw/Mn)が3.5〜4.5であり、
前記エチレンビニルアセテート共重合体樹脂の溶融指数は、ASTM D1238、温度190℃、荷重2.16kgで6〜35g/10分であることを特徴とする太陽電池封止材シート用エチレンビニルアセテート共重合体樹脂を提供する。
前記太陽電池封止材シート用エチレンビニルアセテート共重合体樹脂の製造方法に関する。
前記エチレンビニルアセテート共重合体樹脂は100℃でレオメータで測定したTanδ値が周波数(rad/s)領域1以下で下記式(1)を満足することを特徴とする太陽電池封止材シート用エチレンビニルアセテート共重合体樹脂を提供する。
本発明の方法によりエチレンモノマー72重量%にビニルアセテートモノマー28重量%を管型反応器に注入し、ラジカル発生開始剤としてジ−(2−エチルヘキシル)パーオキシジカーボネート(Di(2−ethylhexyl)peroxy−dicarbonate)、t−ブチルパーオキシピバレート(t−Butyl peroxy pivalate)、t−ブチルパーオキシ−2−エチルヘキサノエート(t−Butyl peroxy−2−ethylhexanoate)、テトラ−ブチルパーオキシ−3,5,5−トリメチルヘキサノエート(Tert−butyl peroxy−3,5,5−trimethylhexanoate)の混合物(20/20/30/30)1200ppmを添加した後、高圧ポンプを用いて管型反応器(tubular reactor)に圧送し、重合圧力2650kg/cm2、重合温度235℃、重合時間3分の重合条件でEVA樹脂を製造した。
重合温度を250℃、重合圧力を2600kg/cm 2 としたのを除いては、実施例1と同様の条件で実施してEVA樹脂を得た。製造されたEVA樹脂のMIは26.8であり、分子量分布は4.36であった。
オートクレーブ反応器を用いた通常のEVA樹脂の製造方法でエチレンモノマーおよびビニルアセテートモノマーにラジカル発生開始剤と分子量調整剤、重合圧力2000kg/cm 2 以下、重合温度220〜260℃の重合条件で製造された産業用EVA樹脂と比較した。
反応温度を240℃、重合圧力を2600kg/cm 2 としたのを除いては、実施例1と同様の条件で実施してEVA樹脂を得た。製造されたEVA樹脂のMIは20.3であり、分子量分布は4.42であった。
前記実施例1、2および比較例1〜3で製造されたEVA樹脂の諸般物性の測定は以下の方法および基準によって行った。
前記実施例1、2および比較例1〜3のEVA樹脂を、スクリュー直径が40mmであり、T−ダイ幅が300mmの単軸押出機で押出機温度を100℃、スクリュー回転速度を50rpmにして、厚さが50μmのフィルムを製造した。フィルム幅を測定してネックインを測定した。フィルム幅は大きいほどネックインが小さくなるので良好である。
EVA樹脂を用いて押出機を通じてシートを製造した。押出機温度およびT−ダイ温度は100℃を維持しシートの生産ライン速度は2.5m/分を維持した。製造されたシートの厚さは0.45mmであった。
Claims (2)
- 25〜33重量%のビニルアセテートモノマーを含むエチレンビニルアセテート共重合体樹脂であって、
前記エチレンビニルアセテート共重合体樹脂は100℃でレオメータで測定したTanδ値が周波数(rad/s)領域1以下で下記式(1)を満足し、
前記Tanδは、樹脂の粘弾性特性を弾性特性である貯蔵弾性率G’、および、粘性特性を示す損失弾性率G”の比であり、溶融指数(MI)とせん断速度(周波数:frequency)の関数で表したものであり、
前記エチレンビニルアセテート共重合体樹脂はZ平均分子量(Mz)が220,000g/mol以下であり、
前記エチレンビニルアセテート共重合体樹脂は分子量分布(Mw/Mn)が3.5〜4.5であり、
前記エチレンビニルアセテート共重合体樹脂の溶融指数は、ASTM D1238、温度190℃、荷重2.16kgで6〜35g/10分であることを特徴とする太陽電池封止材シート用エチレンビニルアセテート共重合体樹脂。
- 67〜75重量%のエチレンモノマーおよび25〜33重量%のビニルアセテートモノマーを管型反応器に投入する段階と、
パーオキサイド系開始剤を1000〜1600ppm濃度で添加する段階と、
重合温度が200〜300℃、重合圧力が2500〜3000kg/cm2および重合時間が2〜20分で重合する段階とを含み、
少なくとも2つ以上のパーオキサイド系開始剤からなるパーオキサイド系開始剤混合物においていずれか一つのパーオキサイド系開始剤に対する他のパーオキサイド系開始剤の重量比X:1(ここで、Xは0<X≦8.0)で混合され、下記式(1)を満足し、
Tanδは、樹脂の粘弾性特性を弾性特性である貯蔵弾性率G’、および、粘性特性を示す損失弾性率G”の比であり、溶融指数(MI)とせん断速度(周波数:frequency)の関数で表したものであり、
前記パーオキサイド系開始剤混合物は、(A)ジアルキルパーオキシジカーボネート系化合物、(B)アルキルパーオキシピバレート系化合物、(C)アルキルパーオキシエチルヘキサノエート系化合物、および(D)ジアルキルパーオキサイド系化合物から選択される少なくとも2種以上を(A):(B):(C):(D)=e:f:g:hの重量比率で混合した混合物であって、
前記e、f、g、hは0〜8.0の範囲内であり、少なくとも2つは0ではない太陽電池封止材シート用エチレンビニルアセテート共重合体樹脂の製造方法。
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KR101187466B1 (ko) * | 2010-08-12 | 2012-10-02 | 삼성토탈 주식회사 | 태양전지 봉지재 시트용 에틸렌비닐아세테이트 공중합체 수지의 제조방법 및 그 수지 |
JP5995838B2 (ja) * | 2011-04-14 | 2016-09-21 | 三井化学東セロ株式会社 | 太陽電池封止用樹脂シート、これを用いた太陽電池モジュール、及びその製造方法 |
KR101222216B1 (ko) * | 2011-04-22 | 2013-01-16 | 삼성토탈 주식회사 | 내후 안정성이 향상된 태양전지 봉지재용 eva 시트의 제조방법 |
JP2013105802A (ja) * | 2011-11-11 | 2013-05-30 | Sumitomo Chemical Co Ltd | 太陽電池用封止シート |
JP2013159777A (ja) * | 2012-02-09 | 2013-08-19 | Asahi Kasei Chemicals Corp | 太陽電池封止材用樹脂 |
CN102965039A (zh) * | 2012-12-17 | 2013-03-13 | 无锡量紫谷新材料科技发展有限公司 | 太阳能电池转光eva胶膜及其制备方法 |
EP2746305A1 (en) * | 2012-12-20 | 2014-06-25 | Basell Polyolefine GmbH | Process for copolymerizing ethylene and esters of vinyl alcohol |
FR3001832B1 (fr) * | 2013-02-06 | 2015-02-20 | Arkema France | Utilisation d'une composition polymerique fluide pour l'encapsulation de modules photovoltaiques |
JP2014192280A (ja) * | 2013-03-27 | 2014-10-06 | Toray Ind Inc | 太陽電池封止材シート用エチレン酢酸ビニル共重合体組成物、それを用いた太陽電池封止材シートの製造方法及び太陽電池封止材シート |
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CN105669886B (zh) | 2018-01-30 |
JP2016108537A (ja) | 2016-06-20 |
MY171763A (en) | 2019-10-28 |
KR20160066867A (ko) | 2016-06-13 |
ES2573028A1 (es) | 2016-06-03 |
KR101645100B1 (ko) | 2016-08-02 |
CN105669886A (zh) | 2016-06-15 |
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