JP5964980B2 - 構造用接着剤およびその接合への適用 - Google Patents
構造用接着剤およびその接合への適用 Download PDFInfo
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- JP5964980B2 JP5964980B2 JP2014541083A JP2014541083A JP5964980B2 JP 5964980 B2 JP5964980 B2 JP 5964980B2 JP 2014541083 A JP2014541083 A JP 2014541083A JP 2014541083 A JP2014541083 A JP 2014541083A JP 5964980 B2 JP5964980 B2 JP 5964980B2
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- shell rubber
- resin
- rubber particles
- structural adhesive
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Classifications
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- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/02—Synthetic macromolecular particles
- B32B2264/0207—Particles made of materials belonging to B32B25/00
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- C08L81/06—Polysulfones; Polyethersulfones
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- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Adhesive Tapes (AREA)
Description
において、93°C(200°F)で硬化すると、硬化した接着剤は、120°C(248°F)を超える、例えば120°C〜130°C(248°F〜266°F)のTgを有する。
エポキシ樹脂
強靭化剤
される軟質コアを有することができる。例えば、コアは、例えば、ジエンホモポリマーまたはコポリマー(例えば、ブタジエンまたはイソプレンのホモポリマー、ブタジエンまたはイソプレンと、例えばビニル芳香族モノマー、(メタ)アクリロニトリル、(メタ)アクリラートなどの1個または複数のエチレン型不飽和モノマーとのコポリマー)で構成することができ、一方、シェルは、1種または複数のモノマー、例えば(メタ)アクリラート(例えば、メタクリル酸メチル)、ビニル芳香族モノマー(例えば、スチレン)、ビニルシアニド(例えば、アクリロニトリル)、不飽和酸および無水物(例えば、アクリル酸)、(メタ)アクリルアミドなどの、適切に高いガラス転移温度を有するポリマーまたはコポリマーで構成することができる。シェルに使用されるポリマーまたはコポリマーは、カルボン酸金属塩の形成(例えば、二価金属陽イオンの塩の形成による)によってイオン的に架橋する酸基を有することができる。シェルのポリマーまたはコポリマーもまた、1分子当たり2個以上の二重結合を有するモノマーの使用によって共有結合で架橋することができる。他のエラストマーポリマーもまた、ポリアクリル酸ブチルまたはポリシロキサンエラストマー(例えば、ポリジメチルシロキサン、特に架橋ポリジメチルシロキサン)を含めて、コアに適切に使用することができる。粒子は2層以上で構成されていてもよい(例えば、1種のエラストマー材料の中心コアが、異なるエラストマー材料の第2のコアに囲まれていてもよく、または、コアは異なる組成の2種のシェルに囲まれていてもよく、または、粒子は軟質コア/硬質シェル/軟質シェル/硬質シェルの構造を有していてもよい。)。典型的には、コアは粒子の約50〜約95重量パーセントを含み、一方、シェルは粒子の約5〜約50重量パーセントを含む。
58120、Epon58091が含まれる。
無機充填剤
二液系用アミン硬化剤
一液系用アミン硬化剤
untsmanからのAradur(商標)956−4, 943, 42、およびMomentive Specialty Chemicals.からのEPICURE(商標)3202、3223、3234である。
追加の添加剤
接着剤の接合への適用
超える、例えば、651〜1500J/m2のASTM 5528による破壊靭性(またはラミネート間の強靭性、G1c)を示す。Tgおよびラップ剪断強度は、71°Cで14日間の、または49°Cで30日間の100%の相対湿度を含有する空気への経時的曝露後も実質的に変わらない(90%を超える保持)。
Resistance of Adhesives)を指す。この試験法は、調製および試験の所定条件下で試験したとき、剛直な被着体と可撓性のある被着体との間の接着剤接合の相対的な剥離耐性の測定を包含する。接着は、剛直な基板から可撓性のある被着体を剥ぐことにより測定される。剥離力は破断エネルギーの指標である。
− 構造用接着剤フィルム状の性質を有する低温硬化ペースト
− 金属−複合体接合のための高い強度/高い強靭性および優れた高温/耐湿特性
− 柔軟な低温硬化計画
− 安定性
− 長いポットライフ/長い組立時間
− 袋詰め不要(No Bagging)、OOA構造接合
− チクソトロピー耐性、スランプ耐性、および使い易さ、
− 自動配置能力
− 最大1年の室温保管(1年の保存寿命)
− より低い製造コスト
実施例
実施例1
二液系
実施例2
接合性能
a)大面積ラップ剪断(WALS)− ASTM D3165
b)浮遊ローラー式剥離(FR剥離)− ASTM D3167
c)複合体接合用双片持ちはり(DCB、G1C)− ASTM D5528
比較例
実施例4
ペースト接着剤接合性能に対するボンドライン厚さの作用
接着剤接合性能に対する湿気曝露の作用
一液系
Claims (24)
- 200°F(93°C)以下で硬化可能な構造用接着剤であって、前記構造用接着剤が、樹脂部分(A)を触媒部分(B)と混合することから形成され、
前記樹脂部分(A)が、
二官能性、三官能性および四官能性エポキシ樹脂から選択される異なるエポキシ官能基を有する少なくとも2種の異なった多官能性エポキシ樹脂と;
100nm未満の粒径を有するより小さいコアシェルゴム粒子、および100nmを超える粒径を有するより大きいコアシェルゴム粒子であって、より小さいコアシェルゴム粒子とより大きいコアシェルゴム粒子との重量比が3:1〜5:1の範囲であるコアシェルゴム粒子と;
多官能性エポキシ樹脂と反応することができる官能基を有するエラストマーポリマーおよび8,000〜14,000の範囲の平均分子量を有するポリエーテルスルホンポリマーの少なくとも1つと;
樹脂部分のレオロジーを制御するのに有効な量の無機充填剤粒子と
を含み、
前記触媒部分(B)が、
脂環式アミン、アミン末端ピペラジン、ポリエチレンポリアミン、イミダゾールおよびその組み合わせからなる群から選択される少なくとも1種のアミン硬化剤と;
触媒部分のレオロジーを制御するのに有効な量の無機充填剤粒子と
を含み、
ここで、前記部分(A)と部分(B)の重量比が3:2〜10:2の範囲内にあり、
ここで、65〜93°C(150〜200°F)の温度範囲で硬化すると、前記構造用接着剤が、95°C(203°F)を超えるガラス転移温度(Tg)と、20°C〜25°Cで33〜37MPaおよび82°Cで24〜27MPa、121°Cで15〜18MPaのASTM D3165によるラップ剪断強度と、20°C〜25°Cで250〜350Nm/mのASTM D3167による剥離強度とを有する構造用接着剤。 - 前記部分(A)と部分(B)の重量比が2:1である、請求項1に記載の構造用接着剤。
- 前記アミン硬化剤がジシクロヘキシルアミンである、請求項1または2に記載の構造用接着剤。
- テトラエチレンペンタミン(TEPA)およびアミン末端ピペラジンがアミン硬化剤として使用される、請求項1から3のいずれか一項に記載の構造用接着剤。
- 前記樹脂部分(A)中の無機充填剤粒子が90〜380m2/gの範囲の表面積を有する疎水性シリカ粒子であり、前記触媒部分(B)中の無機充填剤粒子が90〜380m2/gの範囲の表面積を有する親水性シリカ粒子である、請求項1から4のいずれか一項に記載の構造用接着剤。
- 前記樹脂部分(A)が、非脂環式の二官能性エポキシ樹脂、三官能性エポキシ樹脂、四官能性エポキシ樹脂、および脂環式多官能性エポキシ樹脂の組み合わせを含む、請求項1から5のいずれか一項に記載の構造用接着剤。
- 少なくとも1種の多官能性エポキシ樹脂が脂環式エポキシである、請求項1から6のいずれか一項に記載の構造用接着剤。
- 前記ポリエーテルスルホンポリマーがポリエーテルスルホン−ポリエーテルエーテルス
ルホン(PES−PEES)コポリマーである、請求項1に記載の構造用接着剤。 - 前記エラストマーポリマーが、カルボキシル末端ブタジエンニトリル(CTBN)、アミン末端ブタジエンアクリロニトリル(ATBN)、エポキシ樹脂とカルボキシル末端ブチルニトリルエラストマーまたはATBNエラストマーとを反応させることにより形成されたエポキシ−エラストマー付加物からなる群から選択される、請求項1から8のいずれか一項に記載の構造用接着剤。
- 前記より小さいコアシェルゴム粒子が50〜90nmの範囲内の粒径を有し、前記より大きいコアシェルゴム粒子が150〜300nmの範囲内の粒径を有する、請求項1から9のいずれか一項に記載の構造用接着剤。
- 93°Cで硬化すると120°Cを超えるガラス転移温度(Tg)を有する、請求項1から10のいずれか一項に記載の構造用接着剤。
- 第2の基板に接合した第1の基板ならびに前記第1および第2の基板の間で硬化させた構造用接着剤フィルムを含むラミネート構造であって、
ここで、前記構造用接着剤フィルムが、10〜80ミルの厚さと、65〜93°C(150〜200°F)の温度範囲で硬化させると95°C(203°F)を超えるガラス転移温度(Tg)と、20°C〜25°Cで33〜37MPaおよび82°Cで24〜27MPa、121°Cで15〜18MPaのASTM D3165試験によるラップ剪断強度と、20°C〜25°Cで250〜350Nm/m(または50〜75lb/in)のASTM D3167による剥離強度とを有し、
ここで、前記構造用接着剤フィルムが、
二官能性、三官能性および四官能性エポキシ樹脂から選択される異なるエポキシ官能基を有する少なくとも2種の異なる多官能性エポキシ樹脂と、
100nm未満の粒径を有するより小さいコアシェルゴム粒子、および100nmを超える粒径を有するより大きいコアシェルゴム粒子であって、前記より小さいコアシェルゴム粒子とより大きいコアシェルゴム粒子との重量比が3:1〜5:1の範囲であるコアシェルゴム粒子と、
多官能性エポキシ樹脂と反応することができる官能基を有するエラストマーポリマーおよび8,000〜14,000の範囲の平均分子量を有するポリエーテルスルホンポリマーの少なくとも1つと、
脂環式アミン、アミン末端ピペラジン、ポリエチレンポリアミン、イミダゾールおよびその組み合わせからなる群から選択されるアミン硬化剤と、
無機充填剤粒子と
を含む組成物から形成されるラミネート構造。 - 前記第1および第2の基板が金属基板である、請求項12に記載のラミネート構造。
- 前記第1および第2の基板がアルミニウム製またはアルミニウム合金製である、請求項13に記載のラミネート構造。
- 前記第1の基板が金属基板であり、前記第2の基板が繊維強化樹脂複合体である、請求項12に記載のラミネート構造。
- 前記第1および第2の基板が補強繊維および樹脂母材を含む繊維強化樹脂複合体基板であり、前記接着剤フィルムが650J/m2(3.5in−lb/in2)を超えるASTM D5528による破壊靭性を示す、請求項12に記載のラミネート構造。
- 前記接着剤フィルムが651〜1500J/m2(3.5〜8.1in−lb/in2)の範囲の破壊靭性を示す、請求項12から16のいずれか一項に記載のラミネート構造。
- Tgおよびラップ剪断強度が、71°Cで14日間または49°Cで30日間100%の相対湿度を含有する空気に経時的曝露をした後も実質的に変わらない、請求項12から17のいずれか一項に記載のラミネート構造。
- 第2の基板に接合した第1の基板およびその間に形成された硬化させた接着剤フィルムを含むラミネート構造であって、前記接着剤フィルムが、
二官能性、三官能性および四官能性エポキシ樹脂から選択される少なくとも2種の異なった多官能性エポキシ樹脂と、
100nm未満の粒径を有するより小さいコアシェルゴム粒子、および100nmを超える粒径を有するより大きいコアシェルゴム粒子であって、前記より小さい粒子とより大きい粒子との重量比が3:1〜5:1の範囲であるコアシェルゴム粒子と、
エポキシ官能基を有するエラストマーポリマーおよび8,000〜14,000の範囲の平均分子量を有するポリエーテルスルホンポリマーの少なくとも1つと、
無機充填剤粒子と、
潜在性アミン系硬化剤と
を含む接着剤組成物から形成され、
ここで、前記硬化した接着剤フィルムは以下の特性:65°C〜93°C(150°F〜200°F)の温度範囲で硬化すると100°C(212°F)を超えるガラス転移温度(Tg)、20°C〜25°Cで28〜40MPaおよび82°Cで25〜28MPa、121°Cで17〜21MPaのASTM D3165によるラップ剪断強度、20°C〜25°Cで150〜250Nm/m(30〜50lb/in)のASTM D3167による剥離強度を有する、ラミネート構造。 - 前記接着剤組成物が、イミダゾールおよび脂肪族アミンの少なくとも1つをさらに含む、請求項19に記載のラミネート構造。
- 前記多官能性エポキシ樹脂の少なくとも1つが脂環式多官能性エポキシ樹脂である、請求項19または20に記載のラミネート構造。
- 前記接着剤組成物が、結晶性ポリマー網目内にカプセル化したイミダゾール系触媒をさらに含む、請求項19から21のいずれか一項に記載のラミネート構造。
- 前記接着剤組成物が、180〜300の範囲のアミン価(mg KOH/g)、および35〜90の範囲の当量(H)を有する脂肪族アミンをさらに含む、請求項19から21のいずれか一項に記載のラミネート構造。
- 200°F(93°C)以下で硬化可能な構造用接着剤であって、前記構造用接着剤が、
2つの別々の部分、
すなわち樹脂部分(A)であって、
非脂環式二官能性エポキシ樹脂と;三官能性および四官能性エポキシ樹脂の少なくとも1つと;複数のエポキシ官能基を有する脂環式エポキシ樹脂と、
100nm未満の粒径を有するより小さいコアシェルゴム粒子、および100nmを超える粒径を有するより大きいコアシェルゴム粒子であって、前記より小さいコアシェルゴム粒子とより大きいコアシェルゴム粒子との重量比が3:1〜5:1の範囲であるコアシェルゴム粒子と、
エポキシ官能基を有するエラストマーポリマーおよび8,000〜14,000の範囲の平均分子量を有するポリエーテルスルホンポリマーの少なくとも1つと、
前記樹脂部分のレオロジーを制御するのに有効な量の無機充填剤粒子と
を含む樹脂部分(A)、ならびに、
触媒部分(B)であって、
脂環式アミン、アミン末端ピペラジン、ポリエチレンポリアミン、イミダゾールおよびその組み合わせからなる群から選択される少なくとも1種のアミン硬化剤と、
前記触媒部分のレオロジーを制御するのに有効な量で存在する無機充填剤粒子と
を含む触媒部分(B)を含み、
ここで、前記部分(A)と部分(B)の重量比が3:2〜10:2の範囲内にあり、
ここで、前記樹脂部分(A)が、20〜25°C(または68〜77°F)で500〜1000ポイズの範囲の保存粘度、および1.0〜1.2g/ccの範囲の密度を有し、前記触媒部分(B)が、20〜25°C(68〜77°F)で150〜300ポイズの範囲の保存粘度、および0.9〜1.1g/ccの範囲の密度を有し、
ここで、前記構造用接着剤は、部分(A)および部分(B)を混合した後、20〜25°C(68〜77°F)で200〜600ポイズの混合粘度を有し、
ここで、93°Cで硬化させると、前記接着剤は120°C(248°F)を超えるガラス転移温度(Tg)を有する、構造用接着剤。
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EP2776487A1 (en) | 2014-09-17 |
MY168074A (en) | 2018-10-11 |
MY187410A (en) | 2021-09-22 |
IN2014CN03459A (ja) | 2015-10-09 |
CN103797043B (zh) | 2016-09-07 |
CA2854825A1 (en) | 2013-05-16 |
MX2014005116A (es) | 2014-05-28 |
TW201323556A (zh) | 2013-06-16 |
US8974905B2 (en) | 2015-03-10 |
MX362835B (es) | 2019-02-19 |
CN103797043A (zh) | 2014-05-14 |
WO2013070415A1 (en) | 2013-05-16 |
CA3052816A1 (en) | 2013-05-16 |
JP2015501853A (ja) | 2015-01-19 |
RU2014123295A (ru) | 2015-12-20 |
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