JP2019031646A - 一液型接着剤及び燃料電池セパレータ - Google Patents
一液型接着剤及び燃料電池セパレータ Download PDFInfo
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- JP2019031646A JP2019031646A JP2017154898A JP2017154898A JP2019031646A JP 2019031646 A JP2019031646 A JP 2019031646A JP 2017154898 A JP2017154898 A JP 2017154898A JP 2017154898 A JP2017154898 A JP 2017154898A JP 2019031646 A JP2019031646 A JP 2019031646A
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- Prior art keywords
- fuel cell
- cell separator
- adhesive
- inorganic filler
- separator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/24—Di-epoxy compounds carbocyclic
- C08G59/245—Di-epoxy compounds carbocyclic aromatic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
- B29C65/4835—Heat curing adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4865—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding containing additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/188—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing using encapsulated compounds
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Abstract
Description
1.(A)エポキシ樹脂、(B)硬化剤、(C)硬化促進剤、(D)無機充填剤及び(E)ポリカルボジイミド化合物を含む一液型接着剤であって、
(B)硬化剤が、少なくとも1種のアミン系硬化剤を含み、(C)硬化促進剤が、少なくとも1種のカプセル型硬化促進剤を含み、(D)無機充填剤が少なくとも1種の鱗片状無機充填剤を含み、かつ(D)無機充填剤の含有量が、(A)エポキシ樹脂100質量部に対し、10〜200質量部である一液型接着剤。
2.(A)エポキシ樹脂が、10℃で液状である1の一液型接着剤。
3.(D)無機充填剤中、前記鱗片状無機充填剤が5〜100質量%含まれる1又は2の一液型接着剤。
4.(D)無機充填剤が、タルク、シリカ、マイカ及び黒鉛から選ばれる少なくとも1種である1〜3のいずれかの一液型接着剤。
5.前記アミン系硬化剤が、ジシアンジアミド又はジアミノジフェニルメタンである1〜4のいずれかの一液型接着剤。
6.前記カプセル型硬化促進剤が、カプセル型イミダゾールである1〜5のいずれかの一液型接着剤。
7.(C)硬化促進剤が、カプセル型硬化促進剤及びイミダゾール化合物を含む1〜6のいずれかの一液型接着剤。
8.更に、(F)カップリング剤を含む1〜7のいずれかの一液型接着剤。
9.(F)カップリング剤が、シランカップリング剤である8の一液型接着剤。
10.1〜9のいずれかの一液型接着剤からなる燃料電池セパレータ用接着剤。
11.複数の燃料電池セパレータを、10の燃料電池セパレータ用接着剤を用いて接着してなる燃料電池セパレータ。
12.燃料電池セパレータとMEAとを、10の燃料電池セパレータ用接着剤を用いて接着してなる燃料電池セパレータ−MEA一体品。
13.MEAの両側に、燃料電池セパレータを10の燃料電池セパレータ用接着剤を用いて接着してなる燃料電池セル。
14.10の燃料電池セパレータ用接着剤を用いて得られる燃料電池セル。
15.11の燃料電池セパレータを備える燃料電池。
16.12の燃料電池セパレータ−MEA一体品を備える燃料電池。
17.13又は14の燃料電池セルを備える燃料電池。
18.10の燃料電池セパレータ用接着剤を、燃料電池セパレータの一部に塗布する工程、及び前記燃料電池セパレータに他の燃料電池セパレータを接着する工程を含む、燃料電池セパレータの製造方法。
19.10の燃料電池セパレータ用接着剤を用いて、燃料電池セパレータの一部に塗布する工程、及びMEAを接着する工程を含む、燃料電池セパレータ−MEA一体品の製造方法。
20.前記接着剤の塗布方法が、スクリーン印刷法である18又は19の燃料電池セパレータの製造方法。
21.10の燃料電池セパレータ用接着剤を用いて、燃料電池セパレータとMEAとを接着する工程を含む、燃料電池セルの製造方法。
本発明の一液型接着剤は、(A)エポキシ樹脂、(B)硬化剤、(C)カプセル型硬化促進剤を含む硬化促進剤、(D)鱗片状無機充填剤を含む無機充填剤、及び(E)ポリカルボジイミド化合物を含むものである。
(A)成分のエポキシ樹脂としては、接着剤の分野で一般的に使用されているエポキシ樹脂を用いることができる。前記エポキシ樹脂としては、例えば、ビスフェノールA型エポキシ樹脂、ビスフェノールF型エポキシ樹脂、ビスフェノールS型エポキシ樹脂、フェノールノボラック型エポキシ樹脂、グリシジルアミン型エポキシ樹脂、クレゾールノボラック型エポキシ樹脂、ビフェニル型エポキシ樹脂、ナフタレン型エポキシ樹脂、脂肪族エポキシ樹脂、脂環族エポキシ樹脂、複素環式エポキシ樹脂、スピロ環含有エポキシ樹脂、ハロゲン化エポキシ樹脂等が挙げられる。この中でも、ビスフェノールA型エポキシ樹脂、ビスフェノールF型エポキシ樹脂が好ましい。
(B)成分の硬化剤としては、エポキシ樹脂の硬化剤として一般的に使用されているものであれば使用することができるが、少なくとも1種のアミン系硬化剤を含む。前記アミン系硬化剤と併用が可能な他の硬化剤としては、酸無水物系硬化剤、フェノール系硬化剤、ルイス酸系硬化剤、ポリメルカプタン系硬化剤等が挙げられる。
(C)成分の硬化促進剤は、少なくとも1種のカプセル型硬化促進剤を含むものである。カプセル型硬化促進剤とは、硬化促進剤をウレタン樹脂等のシェルで被覆してマイクロカプセル化したものである。これを(A)エポキシ樹脂中に分散させてマスターバッチ化することで、高い貯蔵安定性と低温からの速硬化性を併せ持つ一液型接着剤とすることができる。本発明においては、生産性を向上させる、すなわち接着剤の硬化時間を短縮化させる観点からカプセル型硬化促進剤を用いる。
(D)成分の無機充填剤は、接着剤に適切な粘度とチクソ性を付与して、塗布性、特にスクリーン印刷特性を向上させるとともに、接着剤の機械的強度を向上させるものである。
(E)成分のポリカルボジイミド化合物は、カルボジイミド基(−N=C=N−)を有する化合物であり、本発明の接着剤の耐湿熱性を向上させる効果がある。ポリカルボジイミド化合物は、例えば、適当な触媒の存在に、有機ポリイソシアネートを加熱し、脱炭酸反応を行うことで製造できる。
本発明の一液型接着剤は、(A)〜(E)成分に加えて、(F)成分としてカップリング剤を含んでもよい。(F)カップリング剤は、無機充填剤の樹脂への濡れ性を向上させて、接着剤の接着力を高める作用がある。前記カップリング剤としては、シランカップリング剤、チタニア系カップリング剤、アルミニウムキレート化合物等が挙げられる。
本発明の一液型液状接着剤は、本発明の効果を損なわない範囲で、必要に応じて着色剤(例えば、カーボンブラック、染料等)、難燃剤、イオントラップ剤、消泡剤、レベリング剤等を含んでもよい。更に、いわゆる反応性希釈剤と呼ばれる1分子中にエポキシ基を1個有し、粘度が低いエポキシ樹脂も、本発明の効果を損ねない範囲で使用することができる。なお、本発明の一液型液状接着剤は、粘度調整のため溶剤を含んでもよいが、溶剤を含む場合、樹脂の硬化の際に揮発してガスリークが起こることがあるため、無溶剤型であることが好ましい。
本発明の一液型接着剤は、前述した各原料を公知の方法で攪拌・混合することによって調整することができる。攪拌・混合は、例えば、ディゾルバー、ホモジナイザー、ホモディスパー等の各種ミキサー、ニーダー、ロールミル、ビーズミル、プラネタリミキサー、万能攪拌機、自公転式攪拌装置、遊星式攪拌装置等を用いて行うことができる。また、攪拌・混合後、真空下にて脱泡してもよい。
本発明の一液型接着剤は、固体高分子形燃料電池用の接着剤として好適であり、特に燃料電池セパレータ用の接着剤として好適である。前記燃料電池セパレータとしては、カーボンセパレータが好ましい。カーボンセパレータは、炭素材料とバインダー樹脂とを含む組成物を成型して得られるもので、前記炭素材料やバインダー樹脂としては、特に限定されず、従来公知のものを使用することができる。例えば、前記炭素材料としては、天然黒鉛、人造黒鉛の黒鉛粉末、石炭系ピッチ、石油系ピッチ、コークス、活性炭、ガラス状カーボン、アセチレンブラック、ケッチェンブラック等が挙げられる。また、前記バインダー樹脂としては、エポキシ樹脂、フェノール樹脂、ポリエステル樹脂、アクリル樹脂、メラミン樹脂、ポリアミド樹脂、ポリイミド樹脂、ポリアミドイミド樹脂、ポリエーテルイミド樹脂、フェノキシ樹脂、ユリア樹脂、メラミン樹脂、シリコーン樹脂、ビニルエステル樹脂、ジアリルフタレート樹脂、ベンゾオキサジン樹脂等が挙げられる。
本発明の燃料電池セパレータは、前記一液型接着剤を用いて製造されるものであり、具体的には、複数のセパレータを、前記一液型接着剤を用いて接着して製造されるものである。本発明の燃料電池セパレータの製造方法としては、例えば、セパレータの一部(例えば外周部)に任意の方法で前記一液型接着剤を塗布し、他のセパレータを重ね合わせて、圧着し、加熱して接着する方法が挙げられる。
また、本発明の一液型接着剤は、セパレータとMEAとの接着にも好適に使用できる。例えば、セパレータの一部(例えば外周部)に任意の方法で前記一液型接着剤を塗布し、MEAを重ね合わせて、圧着し、加熱して接着することができる。このとき、接着剤の塗布方法や圧着加熱条件としては、燃料電池セパレータどうしの接着方法において述べたものと同様でよい。このようにして、燃料電池セパレータとMEAとが本発明の接着剤で接着された燃料電池セパレータ−MEA一体品を製造することができる。
本発明の燃料電池セルは、MEAの両側に、燃料電池セパレータを、前記一液型接着剤を用いて接着することで得られるものである。その方法としては、例えば、セパレータのMEAに接する面の外周部近傍に任意の方法で前記一液型接着剤を塗布し、MEAを間に介して2枚のセパレータを重ね合わせて、圧着し、加熱して接着する方法が挙げられる。このとき、接着剤の塗布方法や圧着加熱条件としては、燃料電池セパレータどうしの接着方法において述べた条件と同様でよい。
(A−1)YD-8125:ビスフェノールA型エポキシ樹脂(新日鉄住金化学(株)製)
(A−2)EPICLON(登録商標)EXA835LV:ビスフェノールA/F混合型エポキシ樹脂(DIC(株)製)
(A−3)YH434L:グリシジルアミン型エポキシ樹脂(新日鉄住金化学(株)製)
(A−4)EPICLON N-740:フェノールノボラック型エポキシ樹脂(DIC(株)製)
(B−1)jERキュア(登録商標)DICY7:ジシアンジアミド(三菱ケミカル(株)製)
(B−2)ジアミノジフェニルメタン(東京化成工業(株)製)
(B−3)EPICLON B-570H:メチルテトラヒドロ無水フタル酸(DIC(株)製)
(C−1)キュアゾール2MZ-A:イミダゾール系硬化促進剤(四国化成工業(株)製)
(C−2)ノバキュアHX3722:カプセル型硬化促進剤(旭化成(株)製)
(D−1)MK-100:マイカ(片倉コープアグリ(株)製、平均粒径5μm、鱗片状、アスペクト比30〜50)
(D−2)アイナフレックス(登録商標):シリカ(日本板硝子(株)製、平均粒径10μm、鱗片状、アスペクト比10)
(D−3)BF-10A:黒鉛(新越化成(株)製、平均粒径10μm、鱗片状、アスペクト比10)
(D−4)SA31:アルミナ粉末(日本軽金属(株)製、平均粒径5μm、塊状)
(D−5)FB940:シリカ(デンカ(株)製、平均粒径15μm、球状)
(E−1)カルボジライトV-05;ポリカルボジイミド化合物(日清紡ケミカル(株)製)
(F−1)KBM403:エポキシ基含有シランカップリング剤(信越化学工業(株)製)
(F−2)KBE903:アミノ基含有シランカップリング剤(信越化学工業(株)製)
人造黒鉛粉末(平均粒径:粒度分布d50にて100μm)100質量部、o−クレゾールノボラック型エポキシ樹脂(エポキシ当量:204g/eq、150℃のICI粘度0.65Pa・s)20.5質量部と、ノボラック型フェノール樹脂(ヒドロキシ基当量:103g/eq、150℃のICI粘度0.22Pa・s)10.5質量部と、2−フェニルイミダゾール0.3質量部とからなるバインダー成分、及び内部離型剤であるカルナバワックス0.2質量部をヘンシェルミキサ内に投入し、800rpmで3分間混合して燃料電池セパレータ用組成物を調製した。
得られた組成物を200mm×200mmの燃料電池セパレータ作製用の金型に投入し、金型温度185℃、成形圧力30MPa、成形時間30秒の条件によりプレス成形し、ガス流路となる溝を片面に有する燃料電池セパレータ予備成形体を得た。
得られた予備成形体の両面(ガス流路面及びその反対側の面)に対し、アルミナ研創材(平均粒径:粒度分布d50にて6μm)を用いて、吐出圧力0.22MPaの条件でウェットブラストによる粗面化処理を施し、燃料電池セパレータサンプルを得た。
[実施例1]
エポキシ樹脂(A−1)70質量部、エポキシ樹脂(A−3)30質量部、硬化剤(B−1)6質量部及び硬化促進剤(C−1)3質量部を粗混合した後、3本ロールミルに通した。得られた混合物に、更に硬化促進剤(C−2)10質量部、無機充填剤(D−1)100質量部、ポリカルボジイミド化合物(E−1)3質量部、及びシランカップリング剤(E−1)1質量部を加え、遊星式攪拌・脱泡装置(倉敷紡績(株)製マゼルスターKK−400W)を用いて3分間混合し、淡黄色ペースト状の接着剤を得た。
下記表1の組成に従い、実施例1と同様にして接着剤を調製した。
(1)スクリーン印刷性
スクリーン印刷機((株)セリアコーポレーション製半自動スクリーン印刷機)を用い、80メッシュ(目開き210μm)のスクリーンを使用して、スキージ荷重30kg、スキージ速度50mm/秒で、燃料電池セパレータサンプル(120mm×120mm)に実施例1〜8及び比較例1〜6で調製した接着剤を印刷した後、使用したスクリーンの孔の接着剤の残存の有無を目視で観察した。
スクリーン印刷性の判定基準は、次のとおりである。
印刷後のスクリーンの孔に接着剤が残存していない・・・・G
印刷後のスクリーンの孔に接着剤が残存している・・・・・N
実施例1〜8及び比較例1〜6で調製した接着剤を、乾燥機中で、180℃で1分間加熱した後、乾燥機から取り出して示差走査熱量測定器(セイコーインスツル(株)製DSC6200)を用い、昇温速度10℃/分の条件で発熱ピークの有無を観測した。
速硬化性の判定基準は、次のとおりである。
発熱ピークがない・・・・・G
発熱ピークがある・・・・・N
なお、発熱ピークは接着剤の硬化反応を表しており、180℃、1分間の条件で硬化が不十分であったことを示している。
実施例1〜8及び比較例1〜6で調製した接着剤を、前記スクリーン印刷性に記載の方法と同様の方法で燃料電池セパレータサンプル(120mm×120mm)に印刷した後、他のセパレータを印刷面に重ね合わせ、乾燥機中で1MPaの荷重をかけて150℃で30分間加熱し、接着セパレータサンプルを作製した。乾燥機から取り出した後、接着剤を印刷した部分の接着剤の滲みを目視で観察した。
滲み性の判定基準は、次のとおりである。
接着剤印刷部分の外に接着剤がにじみ出ていない・・・・・G
接着剤印刷部分の外に接着剤がにじみ出ている・・・・・・N
実施例1〜8及び比較例1〜6で調製した接着剤を乾燥機中で150℃で30分間加熱して完全硬化させ、4mm×18mm×2mmの接着剤硬化物を得た。示差走査熱量測定器(セイコーインスツル(株)製DSC6200)を用いて、この接着剤硬化物のガラス転移温度(Tg)を測定した。ガラス転移温度(Tg)の測定は、サンプルが10μm歪む引張荷重を周波数1Hzで加えながら昇温速度3℃/分の条件で行い、得られた2種の弾性率(損失弾性率、貯蔵弾性率)の比tanδ(=損失弾性率/貯蔵弾性率)の最大値を与える温度をガラス転移温度(Tg)とした。更に、この接着剤硬化物を次の湿熱条件で保管した。
条件1:80℃の温水中に2,000時間浸漬
条件2:80℃の温水/エチレングリコール混合液(混合比1−1)中に
2,000時間浸漬
耐湿熱性の判定基準は、次のとおりである。
条件1、条件2ともに浸漬後のガラス転移温度(Tg)が90℃以上
・・・・・G
条件1、条件2の少なくとも一方の浸漬後のガラス転移温度(Tg)が90℃以下
・・・・・N
前記滲み性と同様の方法で作製した接着セパレータサンプルの接着部の内側に0.1MPaの空気を流して、空気の漏れの有無を確認した。
ガスリーク性試験(室温)の判定基準は、次のとおりである。
空気の漏れ無し・・・・・G
空気の漏れ有り・・・・・N
前記滲み性と同様の方法で作製した接着セパレータサンプルを90℃の温水中に2,000時間浸漬した後、接着セパレータサンプルの接着部の内側に0.1MPaの空気を流して、空気の漏れの有無を確認した。
ガスリーク性試験(熱水浸漬後)の判定基準は、次のとおりである。
空気の漏れ無し・・・・・G
空気の漏れ有り・・・・・N
Claims (21)
- (A)エポキシ樹脂、(B)硬化剤、(C)硬化促進剤、(D)無機充填剤及び(E)ポリカルボジイミド化合物を含む一液型接着剤であって、
(B)硬化剤が、少なくとも1種のアミン系硬化剤を含み、(C)硬化促進剤が、少なくとも1種のカプセル型硬化促進剤を含み、(D)無機充填剤が少なくとも1種の鱗片状無機充填剤を含み、かつ(D)無機充填剤の含有量が、(A)エポキシ樹脂100質量部に対し、10〜200質量部である一液型接着剤。 - (A)エポキシ樹脂が、10℃で液状である請求項1記載の一液型接着剤。
- (D)無機充填剤中、前記鱗片状無機充填剤が5〜100質量%含まれる請求項1又は2記載の一液型接着剤。
- (D)無機充填剤が、タルク、シリカ、マイカ及び黒鉛から選ばれる少なくとも1種である請求項1〜3のいずれか1項記載の一液型接着剤。
- 前記アミン系硬化剤が、ジシアンジアミド又はジアミノジフェニルメタンである請求項1〜4のいずれか1項記載の一液型接着剤。
- 前記カプセル型硬化促進剤が、カプセル型イミダゾールである請求項1〜5のいずれか1項記載の一液型接着剤。
- (C)硬化促進剤が、カプセル型硬化促進剤及びイミダゾール化合物を含む請求項1〜6のいずれか1項記載の一液型接着剤。
- 更に、(F)カップリング剤を含む請求項1〜7のいずれか1項記載の一液型接着剤。
- (F)カップリング剤が、シランカップリング剤である請求項8記載の一液型接着剤。
- 請求項1〜9のいずれか1項記載の一液型接着剤からなる燃料電池セパレータ用接着剤。
- 複数の燃料電池セパレータを、請求項10記載の燃料電池セパレータ用接着剤を用いて接着してなる燃料電池セパレータ。
- 燃料電池セパレータと膜電極接合体とを、請求項10記載の燃料電池セパレータ用接着剤を用いて接着してなる燃料電池セパレータ−膜電極接合体一体品。
- 膜電極接合体の両側に、燃料電池セパレータを請求項10記載の燃料電池セパレータ用接着剤を用いて接着してなる燃料電池セル。
- 請求項10記載の燃料電池セパレータ用接着剤を用いて得られる燃料電池セル。
- 請求項11記載の燃料電池セパレータを備える燃料電池。
- 請求項12記載の燃料電池セパレータ−膜電極接合体一体品を備える燃料電池。
- 請求項13又は14記載の燃料電池セルを備える燃料電池。
- 請求項10記載の燃料電池セパレータ用接着剤を、燃料電池セパレータの一部に塗布する工程、及び前記燃料電池セパレータに他の燃料電池セパレータを接着する工程を含む、燃料電池セパレータの製造方法。
- 請求項10記載の燃料電池セパレータ用接着剤を用いて、燃料電池セパレータの一部に塗布する工程、及び膜電極接合体を接着する工程を含む、燃料電池セパレータ−膜電極接合体一体品の製造方法。
- 前記接着剤の塗布方法が、スクリーン印刷法である請求項18又は19記載の燃料電池セパレータの製造方法。
- 請求項10記載の燃料電池セパレータ用接着剤を用いて、燃料電池セパレータと膜電極接合体とを接着する工程を含む、燃料電池セルの製造方法。
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JP2001216976A (ja) * | 2000-02-03 | 2001-08-10 | Nisshinbo Ind Inc | 燃料電池セパレータ及びその製造方法 |
JP2004031008A (ja) * | 2002-06-24 | 2004-01-29 | Nisshinbo Ind Inc | 燃料電池セパレータ |
JP2013072011A (ja) * | 2011-09-28 | 2013-04-22 | Sumitomo Bakelite Co Ltd | 処理硬化触媒、一液型エポキシ樹脂組成物及び硬化物 |
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KR102319810B1 (ko) * | 2021-06-10 | 2021-11-01 | 주식회사 케이엠지 | 이차전지 분리막용 수계 바인더 및 이를 포함하는 다공성 분리막 |
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KR20200039675A (ko) | 2020-04-16 |
KR102508629B1 (ko) | 2023-03-10 |
US20200172697A1 (en) | 2020-06-04 |
EP3666843B1 (en) | 2021-10-20 |
CN111108169B (zh) | 2022-04-05 |
EP3666843A1 (en) | 2020-06-17 |
EP3666843A4 (en) | 2021-03-24 |
WO2019031585A1 (ja) | 2019-02-14 |
CA3072041A1 (en) | 2019-02-14 |
US11254798B2 (en) | 2022-02-22 |
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JP6500947B2 (ja) | 2019-04-17 |
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