JP2020524728A - 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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- JP2020524728A JP2020524728A JP2019569926A JP2019569926A JP2020524728A JP 2020524728 A JP2020524728 A JP 2020524728A JP 2019569926 A JP2019569926 A JP 2019569926A JP 2019569926 A JP2019569926 A JP 2019569926A JP 2020524728 A JP2020524728 A JP 2020524728A
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- epoxy resin
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- adhesive
- adhesive epoxy
- 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.)
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- 239000000203 mixture Substances 0.000 title description 32
- 238000009472 formulation Methods 0.000 title description 8
- 229920006332 epoxy adhesive Polymers 0.000 title description 2
- 239000004593 Epoxy Substances 0.000 claims abstract description 30
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 27
- 239000003822 epoxy resin Substances 0.000 claims abstract description 26
- 239000000853 adhesive Substances 0.000 claims abstract description 24
- 230000001070 adhesive effect Effects 0.000 claims abstract description 24
- 229920003986 novolac Polymers 0.000 claims abstract description 17
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- 239000004814 polyurethane Substances 0.000 claims abstract description 12
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- OWMNWOXJAXJCJI-UHFFFAOYSA-N 2-(oxiran-2-ylmethoxymethyl)oxirane;phenol Chemical compound OC1=CC=CC=C1.OC1=CC=CC=C1.C1OC1COCC1CO1 OWMNWOXJAXJCJI-UHFFFAOYSA-N 0.000 claims abstract description 6
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- IISBACLAFKSPIT-UHFFFAOYSA-N Bisphenol A Natural products C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 19
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- 125000003118 aryl group Chemical group 0.000 claims description 3
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- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 6
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- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
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- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 description 1
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- FAYVLNWNMNHXGA-UHFFFAOYSA-N Cardanoldiene Natural products CCCC=CCC=CCCCCCCCC1=CC=CC(O)=C1 FAYVLNWNMNHXGA-UHFFFAOYSA-N 0.000 description 1
- 241000579895 Chlorostilbon Species 0.000 description 1
- 229920002732 Polyanhydride Polymers 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- 230000000903 blocking effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- PTFIPECGHSYQNR-UHFFFAOYSA-N cardanol Natural products CCCCCCCCCCCCCCCC1=CC=CC(O)=C1 PTFIPECGHSYQNR-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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- 229910052876 emerald Inorganic materials 0.000 description 1
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- 125000000524 functional group Chemical group 0.000 description 1
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- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- -1 polytetramethylene Polymers 0.000 description 1
- 238000010944 pre-mature reactiony Methods 0.000 description 1
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- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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- C08G18/69—Polymers of conjugated dienes
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- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
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- C08G59/4014—Nitrogen containing compounds
- C08G59/4021—Ureas; Thioureas; Guanidines; Dicyandiamides
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L75/08—Polyurethanes from polyethers
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C09J2203/354—Applications of adhesives in processes or use of adhesives in the form of films or foils for automotive applications
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
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Abstract
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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