JP5291183B2 - 照射を受けた熱可塑性強化剤を含有する熱硬化性樹脂 - Google Patents
照射を受けた熱可塑性強化剤を含有する熱硬化性樹脂 Download PDFInfo
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Description
本発明は、概して、熱可塑性強化剤(toughening agent)で強化された熱硬化性樹脂マトリックスを含む複合材料に関する。より詳細には、本発明は、そのような熱可塑性物質で強化した樹脂マトリックス中で発生することが知られている、溶剤誘起のマイクロクラック形成を減少させることを目的とする。
典型的な複合材料の2つの主要な成分は、ポリマー樹脂マトリックス及び繊維状強化剤である。航空宇宙産業においては、熱硬化性樹脂は、種々の樹脂マトリックス中の主要成分の1つとして、通常使われている。エポキシ樹脂、ビスマレイミド樹脂及びシアネートエステル樹脂は、一般的な熱硬化性樹脂である。熱可塑性強化剤の各種の量を加えることによってこれらの熱硬化性樹脂を「強化する」ことは、普及している操作である。ポリエーテルスルホン(PES)、ポリエーテルエーテルスルホン(PEES)及びポリエーテルイミド(PEI)は、日常的に熱硬化性樹脂に加えられてきた熱可塑性強化剤のいくつかの例である。
照射を受けた熱可塑性強化剤の調製
本発明による7つの典型的な照射を受けた熱可塑性強化剤を、以下のように調製した。
三官能及び四官能エポキシ樹脂を有する樹脂組成物の調製並びに試験
以下の方法を用いて、例1で調製した照射を受けた熱可塑性強化剤と組み合わせて、三官能及び四官能エポキシ樹脂を含有する例示的な未硬化樹脂組成物を調製した。
比較のための未硬化樹脂組成物は、本発明に従って照射した粉末の替わりに、非照射PES/PEES粉末(Solvay Radel A105P SFPグレード)及び非照射PES粉末(Sumikaexcel 5003P)を使用したことを除いては、例2と同様に作製した。
照射PES及びPES/PEESを用いて作製した積層板の機械的性能
照射PES及びPES/PEESコポリマーの使用に起因して減少したマイクロクラック発生の機械的性能上の利益を、硬化複合積層板の層間せん断強度(Interlaminar Shear Strength)(ILSS)の決定により測定した。比較例1に記載した非処理のPES及びPES/PEESから作製した積層板のILSS、並びに例1に記載した電子ビームで処理したPES及びPES/PEESを用いて作製した積層板のILSSを、試験方法EN2563に従って測定した。1組の試験試料はMEK溶剤にさらさず、第2の組は試験に先立ってMEK溶剤に6日間浸漬させた。溶剤にさらした後のILSSの減少は、試料中のマイクロクラック発生量の尺度である。試験結果を、表3に示す。これらのILSS試験は、本発明に従って照射PESを組み入れている樹脂及びプリプレグから作製した積層板の、MEK溶剤にさらした後の機械的性能の向上を実証している。
Claims (20)
- 熱硬化性樹脂成分、照射を受けた熱可塑性強化剤、及び硬化剤を含み、硬化させることで硬化樹脂を形成する未硬化樹脂組成物であって、
この照射を受けた熱可塑性強化剤が、前記熱硬化性樹脂成分及び前記硬化剤との混合に先立って形成されるものであり、
かつ、この照射を受けた熱可塑性強化剤が、前記硬化樹脂における溶剤誘起のマイクロクラック形成を、前記熱硬化性樹脂成分、前記熱可塑性強化剤、及び前記硬化剤を含む前記未硬化樹脂組成物に相当する、照射を受けていない熱可塑性強化剤を含む未硬化樹脂組成物から得られた硬化樹脂における溶剤誘起のマイクロクラック形成と比べて減少させるのに足る程度のエネルギー量を有する放射線で処理された熱可塑性強化剤である、
未硬化樹脂組成物。 - 前記熱硬化性樹脂成分が、エポキシ樹脂、シアネートエステル樹脂、及びビスマレイミド樹脂からなる群から選択される、請求項1に記載の未硬化樹脂組成物。
- 前記の照射を受けた熱可塑性強化剤が、ポリエーテルスルホン、ポリエーテルエーテルスルホン、ポリエーテルイミド、及びポリフェニルスルホンからなる群から選択される、請求項2に記載の未硬化樹脂組成物。
- 前記硬化剤が、ジシアンジアミド及び芳香族アミンからなる群から選択される、請求項3に記載の未硬化樹脂組成物。
- 請求項1に記載の未硬化樹脂組成物、及び繊維強化材を含むプリプレグ。
- 前記繊維強化材が、炭素繊維、ガラス繊維、及びセラミック繊維からなる群から選択される、請求項5に記載のプリプレグ。
- 前記熱硬化性樹脂成分が、エポキシ樹脂、シアネートエステル樹脂及びビスマレイミド樹脂からなる群から選択される、請求項6に記載のプリプレグ。
- 前記の照射を受けた熱可塑性強化剤が、ポリエーテルスルホン、ポリエーテルエーテルスルホン、ポリエーテルイミド、及びポリフェニルスルホンからなる群から選択される、請求項7に記載のプリプレグ。
- 前記硬化剤が、ジシアンジアミド及び芳香族アミンからなる群から選択される、請求項8に記載のプリプレグ。
- 硬化させた請求項1に記載の未硬化樹脂組成物を含む、樹脂製品。
- 前記未硬化樹脂組成物を硬化させた、請求項5に記載のプリプレグを含む、複合製品。
- 硬化させることで硬化樹脂を形成する未硬化樹脂組成物を製造する方法であって、
熱硬化性樹脂成分と、照射を受けた熱可塑性強化剤及び硬化剤とを混合するステップであって、この照射を受けた熱可塑性強化剤が、前記熱硬化性樹脂成分及び前記硬化剤との混合に先立って形成されるものであるステップを含み、
この照射を受けた熱可塑性強化剤が、前記硬化樹脂における溶剤誘起のマイクロクラック形成を、前記熱硬化性樹脂成分、前記熱可塑性強化剤、及び前記硬化剤を含む前記未硬化樹脂組成物に相当する、照射を受けていない熱可塑性強化剤を含む未硬化樹脂組成物から得られた硬化樹脂における溶剤誘起のマイクロクラック形成と比べて減少させるのに足る程度のエネルギー量を有する放射線で処理された熱可塑性強化剤である、
未硬化樹脂組成物の製造方法。 - 前記熱硬化性樹脂成分が、エポキシ樹脂、シアネートエステル樹脂、及びビスマレイミド樹脂からなる群から選択される、請求項12に記載の未硬化樹脂組成物を製造する方法。
- 前記の照射を受けた熱可塑性強化剤が、ポリエーテルスルホン、ポリエーテルエーテルスルホン、ポリエーテルイミド、及びポリフェニルスルホンからなる群から選択される、請求項13に記載の未硬化樹脂組成物を製造する方法。
- 前記硬化剤が、ジシアンジアミド及び芳香族アミンからなる群から選択される、請求項14に記載の未硬化樹脂組成物を製造する方法。
- 請求項1に記載の未硬化樹脂組成物を繊維強化材と組み合わせるステップを含む、プリプレグを製造する方法。
- 請求項1に記載の未硬化樹脂組成物を硬化させるステップを含む、樹脂製品を製造する方法。
- 請求項5に記載の前記プリプレグ中に存在する前記未硬化樹脂組成物を硬化させるステップを含む、複合製品を製造する方法。
- 前記放射線が電子ビーム放射線である、請求項1に記載の未硬化樹脂組成物。
- 前記放射線が電子ビーム放射線である、請求項12に記載の未硬化樹脂組成物を製造する方法。
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CN102516717B (zh) * | 2011-12-22 | 2014-07-09 | 云南云岭高速公路养护绿化工程有限公司 | 热塑性弹性体增韧环氧树脂、制备及应用 |
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WO2014043047A2 (en) * | 2012-09-17 | 2014-03-20 | 3M Innovative Properties Company | Liquid epoxy coating compositions, methods, and articles |
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GB0619401D0 (en) * | 2006-10-02 | 2006-11-08 | Hexcel Composites Ltd | Composite materials with improved performance |
UA33826U (uk) | 2008-03-17 | 2008-07-10 | Спосіб отвердіння епоксидної композиції |
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2008
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- 2008-04-14 EP EP08737490A patent/EP2265658B1/en active Active
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ES2400975T3 (es) | 2013-04-15 |
US20110034591A1 (en) | 2011-02-10 |
WO2009127891A1 (en) | 2009-10-22 |
AU2008354925B2 (en) | 2011-11-24 |
JP2011516712A (ja) | 2011-05-26 |
CN102066453A (zh) | 2011-05-18 |
EP2265658A1 (en) | 2010-12-29 |
EP2265658B1 (en) | 2013-01-23 |
CN102066453B (zh) | 2013-05-08 |
AU2008354925A1 (en) | 2009-10-22 |
US8946322B2 (en) | 2015-02-03 |
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