JP2019508292A - 熱可塑性結合したプレフォーム及びそれを用いて形成された熱硬化性マトリクス - Google Patents
熱可塑性結合したプレフォーム及びそれを用いて形成された熱硬化性マトリクス Download PDFInfo
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Abstract
Description
本出願は、2016年2月19日付けで出願された係属中の米国仮特許出願第62/297,368号、及び2016年2月19日付けで出願された米国仮特許出願第62/297,455号の米国特許法119条に基づく優先権の利益を主張するものであり、これらの出願はどちらも引用することにより本明細書の一部をなす。
溶媒と、サイジングを殆ど又は全く含まない一次繊維と、メカニカルファイバーと、熱可塑性樹脂とを含むブレンドを形成することと、
ブレンドの未固結(unconsolidated)プレフォームを形成することと、
なお、未固結プレフォームが、一次繊維と、メカニカルファイバーと、熱可塑性樹脂とを含み、
未固結プレフォームを熱及び圧力下で固結して、熱可塑性結合したプレフォームを形成することと、
を含む。
Claims (35)
- サイジングを殆ど又は全く含まない一次繊維と、
メカニカルファイバーと、
熱可塑性樹脂と、
を含む、熱可塑性結合したプレフォーム。 - 密度が0.25g/cm3〜1g/cm3である、請求項1に記載の熱可塑性結合したプレフォーム。
- 前記一次繊維が炭素繊維である、請求項1に記載の熱可塑性結合したプレフォーム。
- 前記炭素繊維が、再生利用された炭素繊維及び未処理炭素繊維から選択される、請求項3に記載の熱可塑性結合したプレフォーム。
- 前記一次繊維の長さが5cm未満である、請求項1に記載の熱可塑性結合したプレフォーム。
- 前記一次繊維の長さが0.508cm〜1.78cmである、請求項5に記載の熱可塑性結合したプレフォーム。
- 前記一次繊維の直径が5μm〜約9μmである、請求項1に記載の熱可塑性結合したプレフォーム。
- 前記一次繊維の剛性が少なくとも30Mpsiである、請求項1に記載の熱可塑性結合したプレフォーム。
- 前記メカニカルファイバーがフィブリル化繊維である、請求項1に記載の熱可塑性結合したプレフォーム。
- 前記メカニカルファイバーが、コットンリンター、セルロース系繊維、アクリル系繊維、及びアラミド繊維からなる群から選択される、請求項1に記載の熱可塑性結合したプレフォーム。
- 前記熱可塑性樹脂が、ポリエチレン、ポリプロピレン、ポリエステル、ポリアミド、ポリカーボネート、ポリフェニレンスルフィド、ポリスルホン、ポリエーテルイミド、ポリエーテルエーテルケトン、ポリエーテルケトンケトン、及びそれらのブレンドからなる群から選択される、請求項1に記載の熱可塑性結合したプレフォーム。
- 前記熱可塑性樹脂が、ポリプロピレン、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ナイロン6、ナイロン66、ポリカーボネート、ポリフェニレンスルフィド、ポリエーテルスルホン、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11に記載の熱可塑性結合したプレフォーム。
- 樹脂が注入された、請求項1に記載の前記熱可塑性結合したプレフォームを含む複合材。
- 前記樹脂が熱硬化性樹脂である、請求項13に記載の複合材。
- 前記樹脂が、エポキシ、アクリル系樹脂、ポリエステル、ビニルエステル、エポキシ、ポリウレタン、フラン、及びビス−マレイミドからなる群から選択される、請求項14に記載の複合材。
- 熱可塑性結合したプレフォームを形成する方法であって、
溶媒と、サイジングを殆ど又は全く含まない一次繊維と、メカニカルファイバーと、熱可塑性樹脂とを含むブレンドを形成することと、
前記ブレンドの未固結プレフォームを形成することと、
なお、前記未固結プレフォームが、前記一次繊維と、前記メカニカルファイバーと、前記熱可塑性樹脂とを含み、
前記未固結プレフォームを熱及び圧力下で固結して、前記熱可塑性結合したプレフォームを形成することと、
を含む、方法。 - 前記未固結プレフォームの密度が0.05g/cm3〜0.2g/cm3である、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記圧力が30kPa〜14000kPaである、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記温度が、前記熱可塑性樹脂のガラス転移温度又は融点を超える、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記熱可塑性結合したプレフォームが前記熱可塑性樹脂のガラス転移温度又は融点未満に冷えるまで、前記圧力を印加する、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記熱可塑性結合したプレフォームが30℃以下の温度に冷えるまで、前記圧力を印加する、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記熱可塑性結合したプレフォームの密度が0.25g/cm3〜1g/cm3である、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記一次繊維が炭素繊維である、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記炭素繊維が、再生利用された炭素繊維及び未処理炭素繊維から選択される、請求項23に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記一次繊維の長さが0.254cm〜2.54cmである、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記一次繊維の長さが0.508cm〜1.78cmである、請求項25に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記一次繊維の直径が5μm〜約9μmである、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記一次繊維の剛性が少なくとも30Mpsiである、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記メカニカルファイバーがフィブリル化繊維である、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記メカニカルファイバーが、コットンリンター、セルロース系繊維、アクリル系繊維、及びアラミド繊維からなる群から選択される、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記熱可塑性樹脂が、ポリエチレン、ポリプロピレン、ポリエステル、ポリアミド、ポリカーボネート、ポリフェニレンスルフィド、ポリスルホン、ポリエーテルイミド、ポリエーテルエーテルケトン、ポリエーテルケトンケトン、及びそれらのブレンドからなる群から選択される、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記熱可塑性樹脂が、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ナイロン6、ナイロン66、ポリエーテルスルホン、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31に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記熱可塑性結合したプレフォームに樹脂を注入することを更に含む、請求項16に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記樹脂が熱硬化性樹脂である、請求項33に記載の熱可塑性結合したプレフォームを形成する方法。
- 前記樹脂が、エポキシ、アクリル系樹脂、ポリエステル、ビニルエステル、エポキシ、ポリウレタン、フラン、及びビス−マレイミドからなる群から選択される、請求項34に記載の熱可塑性結合したプレフォームを形成する方法。
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