JP7018079B2 - 高温エポキシ接着剤配合物 - Google Patents
高温エポキシ接着剤配合物 Download PDFInfo
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- 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
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Description
(i)ASTM D-445に従って3000mPa-秒未満の、25℃での粘度を有すること、(ii)2超だが3.7未満の、1分子当たりエポキシド基の平均数、及び(iii)750g/モル未満の分子量。
1. 第1の反応ステップ:x重量%の成分[a]及び[b]を実験室反応器中に加え、120℃まで加熱する。この混合物を真空下120℃で30分間混合する。次いで、混合物を60℃まで冷却する。温度が60℃に達したら、x重量%の成分[c]を加え、それを2分間混合させる。次いで、x重量%の成分[d]を加え、この混合物を窒素下85℃(浴温度)で45分間反応させる。
流動物、ペースト及び着色剤のすべてを缶中で組み合わせ、50℃で5分間混合し、次いで、真空下でさらに30分間混合する。こすり落とし、ヒュームドシリカを加え、温度を35℃に設定し、3分間混合し、次いで、真空下でさらに20分間混合する。全ての他の顔料を加え、真空下で3分間混合し、次いで、こすり落とした後、真空下でさらに15分間混合する。
- 回転粘度/降伏応力: Bohlin CS-50レオメータ、C/P 20、上/下0.1~20秒/1;Cassonモデルによる評価。DSC: Mettler Toledo 25℃~250℃、10℃/分傾斜上昇;TGは、第2の実行により測定。
使用済み鋼:Voest Alpineにより供給されるとおりの、高温浸漬亜鉛被覆鋼: 420LAD+Z100MB、厚さ1.2mm及び電気的亜鉛被覆鋼HC 340LAD+ZE 50-50 厚さ1.0mm。
- 以下のDIN EN 1465によるラップせん断強度: 10x25mm接着面積、0.2mm接着剤層厚さ。LS基板=VoestAlpineにより供給された、H420 Z100 LAD 1.2mm//H340 ZE 50/50 1.0mm組合せ。試験速度10mm/分。
- Lapせん断強度は、23℃、130℃及び140℃で試験した。
- ISO 11343に従う衝撃剥離強度: 20x30mm接着面積、0.3mm接着剤層厚さ。IP基板=VoestAlpineにより供給された、H420 Z100 LAD 1.0mm。試験速度2m/秒。
- モジュラスは、DIN EN ISO 527-1.Dumbell試験片5aに従って試験した。
Claims (14)
- 接着性エポキシ樹脂系であって、
a.30~70重量%の1種以上のジグリシジルエーテルビスフェノールA樹脂、
b.1~10重量%のエポキシノボラック樹脂であって、以下の特徴の少なくとも1つによって特徴づけられるエポキシノボラック樹脂:(i)ASTM D-445に従って3000mPa-秒未満の、25℃での粘度を有すること、(ii)2超だが3.7未満の、1分子当たりのエポキシ基の平均数、及び(iii)750g/モル未満の分子量、c.10-30重量%のポリウレタン強化剤、但し、前記系が単一成分系である場合、前記ポリウレタン強化剤は、一官能性キャッピング剤でブロックされることを条件とする、
d.5~20重量%の軟化剤、
e.1~8重量%の硬化剤、並びに
f.0.1~重量%の芳香族尿素ベース硬化促進剤
を含み、
前記重量%が、前記系の全重量に基づく、接着性エポキシ樹脂系。 - 前記系が、単一成分系であり、及び前記硬化促進剤が潜在性硬化促進剤である、請求項1に記載の接着性エポキシ樹脂系。
- 前記1種以上のジグリシジルエーテルビスフェノールA樹脂が、前記系の30~60重量%の量で液体エポキシ樹脂成分及び前記系の1~10重量%の量で固体エポキシ樹脂成分を含む、請求項1又は2に記載の接着性エポキシ樹脂系。
- 5~30重量%の量で充填剤をさらに含む、請求項1~3のいずれか一項に記載の接着性エポキシ樹脂系。
- 前記ポリウレタン強化剤が、ポリテトラアルキレンエーテルグリコールと、ポリアルカジエン-ジオール及びジイソシアネートとの反応生成物から形成される、請求項1~5のいずれか一項に記載の接着性エポキシ樹脂系。
- 前記強化剤が、ポリレノール鎖延長剤との反応によって鎖延長される、請求項6に記載の接着性エポキシ樹脂。
- 前記鎖延長剤が、o,o’-ジアリルビスフェノールAである、請求項7に記載の接着性エポキシ樹脂。
- 前記軟化剤が、カルボキシ末端化アクリロニトリルブタジエンエポキシ付加物又はポリアミンエポキシ付加物である、請求項1~8のいずれか一項に記載の接着性エポキシ樹脂系。
- 前記硬化剤が、ジシアンジアミドである、請求項1~9のいずれか一項に記載の接着性エポキシ樹脂系。
- 前記エポキシノボラック樹脂が、ASTM D-445に従って3000mPa-秒未満の、25℃での粘度を有する、請求項1~10のいずれか一項に記載の接着性エポキシ樹脂系。
- 前記エポキシノボラック樹脂が、2超だが3.7未満の、1分子当たりエポキシド基の平均数を有する、請求項1~11のいずれか一項に記載の接着性エポキシ樹脂系。
- 前記エポキシノボラック樹脂が、750g/モル未満の分子量を有する、請求項1~12のいずれか一項に記載の接着性エポキシ樹脂系。
- 第1の成分が、前記1種以上のジグリシジルエーテルビスフェノールA樹脂及び前記エポキシノボラック樹脂を含み、並びに第2の成分が、前記ポリウレタン強化剤、前記硬化剤及び前記硬化促進剤を含む、二成分系である、請求項1及び3~8のいずれか一項に記載の接着性エポキシ樹脂系。
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US201762523853P | 2017-06-23 | 2017-06-23 | |
US62/523,853 | 2017-06-23 | ||
PCT/US2018/026784 WO2018236454A1 (en) | 2017-06-23 | 2018-04-10 | EPOXY ADHESIVE FORMULATIONS AT HIGH TEMPERATURE |
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WO2020256902A1 (en) * | 2019-06-18 | 2020-12-24 | Ddp Specialty Electronic Materials Us, Llc | One-component toughened epoxy adhesives with improved humidity resistance |
US11781048B2 (en) * | 2020-08-31 | 2023-10-10 | Sika Technology Ag | One-component thermosetting epoxy adhesive with improved adhesion |
US20230323174A1 (en) * | 2020-09-14 | 2023-10-12 | Ddp Specialty Electronic Materials Us, Llc . | Thermal interface material |
CN116472301A (zh) * | 2020-10-26 | 2023-07-21 | Ddp特种电子材料美国有限责任公司 | 单组分结构粘合剂 |
JP2024512348A (ja) * | 2021-03-05 | 2024-03-19 | ヘンケル・アクチェンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト・アウフ・アクチェン | 衝撃耐性、耐応力性、及び溶接性を備えたエポキシ接着剤 |
EP4095197A1 (en) * | 2021-05-28 | 2022-11-30 | SHPP Global Technologies B.V. | Articles and structures with colorable electro-static dissipative (esd) polycarbonate blends |
CN116120871B (zh) * | 2023-01-10 | 2024-09-13 | 安徽牛元新材料有限公司 | 一种清味弹性干挂胶及其制备方法 |
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US11739241B2 (en) | 2023-08-29 |
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