JP2016064648A - 複合構造体における微小亀裂生成を軽減するための、樹脂リッチポケット内への改質材料の載置 - Google Patents
複合構造体における微小亀裂生成を軽減するための、樹脂リッチポケット内への改質材料の載置 Download PDFInfo
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Abstract
【解決手段】樹脂114と、樹脂の中に少なくとも部分的に埋め込まれた繊維118と、繊維118に関連付けられた一又は複数の樹脂リッチポケット132とを含み、複合構造体100は、一又は複数の樹脂リッチポケット132内に改質材200を含み、改質材200は、樹脂リッチポケット132の中の樹脂特性を変化させ、それにより、複合構造体100の樹脂リッチポケット132の中での亀裂初発又は亀裂成長を軽減又は防止するための、樹脂特性とは異なる少なくとも1つの改質材特性を有する複合構造体100。改質材200が、樹脂弾性率よりも低い改質材弾性率、樹脂熱膨張率(CTE)よりも低い改質材CTE、樹脂靱性よりも高い改質材靱性、又はおよそ20μmよりも小さい断面幅、という改質材特性のうちの少なくとも1つを有する、複合構造体100。
【選択図】図7
Description
Claims (15)
- 樹脂(114)と、
前記樹脂の中に少なくとも部分的に埋め込まれた繊維(118)と、
前記繊維に関連付けられた一又は複数の樹脂リッチポケット(132)と、
前記一又は複数の樹脂リッチポケット(132)内に配置された改質材(200)とを備え、前記改質材は、樹脂特性とは異なる少なくとも1つの改質材特性を有する、複合構造体。 - 前記改質材(200)は、
樹脂弾性率よりも低い改質材弾性率
樹脂熱膨張率(CTE)よりも低い改質材CTE
樹脂靱性よりも高い改質材靱性、及び、
およそ20ミクロンよりも小さい断面幅、という改質材特性のうちの少なくとも1つを有する、請求項1に記載の複合構造体。 - 前記樹脂リッチポケット(132)は、
一方向性プライ(108)の繊維(118)の間の区域、
一方向性のプライ又はテープの繊維の一又は複数の外縁部に沿った区域、
織布(126)又はクロースの繊維に関連付けられたくぼみ及び/又は隙間(128)内の区域、
積層複合構造体(100)の複合プライ(104)の間の界面の区域、及び、
積層複合構造体におけるプライ段差(110)の区域、のうちの少なくとも1つの中に位置する、請求項1又は2に記載の複合構造体。 - 前記改質材(200)は、
複数の改質粒子(204)、
溶液、又はコーティング、のうちの少なくとも1つである、請求項1から3のいずれか一項に記載の複合構造体。 - 前記改質材(200)は、一又は複数の短改質フィラメントとして構成される、請求項1から4のいずれか一項に記載の複合構造体。
- 前記改質材(200)は、一又は複数の連続的な改質フィラメントとして構成される、請求項1から5のいずれか一項に記載の複合構造体。
- 前記改質フィラメントは、一又は複数の繊維の少なくとも一又は複数の外縁部に沿って位置付けられた連続的なフィラメントであり、前記繊維の連続的な強化フィラメント(120)に対して概して平行に配向される、請求項6に記載の複合構造体。
- 前記改質材(200)は、熱硬化モノマーコーティング又は熱硬化プレポリマーコーティングを含む改質コーティングであり、
前記改質コーティングは、繊維トウの一外縁部の一又は複数の強化フィラメントに適用される、請求項1から7のいずれか一項に記載の複合構造体。 - 複合構造体を製造する方法であって、
製造ツールに繊維(118)を関連付けることと、
前記繊維に関連付けられた樹脂リッチポケット(132)内に改質材(200)を含むこととを含む、方法。 - 樹脂リッチポケット(132)内に前記改質材(200)を含む前記ステップは、
樹脂リッチポケット(132)内に改質材(200)を載置することと、
前記繊維に樹脂(114)を適用することとを含む、請求項9に記載の方法。 - 樹脂リッチポケット(132)内に前記改質材(200)を含む前記ステップは、
前記樹脂リッチポケット(132)内に改質材と樹脂との混合物を載置することと、
前記繊維(118)の残部に樹脂(114)を適用することとを含む、請求項9又は10に記載の方法。 - 製造ツールに前記繊維(118)を関連付ける前記ステップ、及び、前記改質材(200)を載置する前記ステップは、
繊維製造装置から前記繊維を引き出している間に、前記繊維(118)に前記改質材(200)を適用することを含む、請求項9から11のいずれか一項に記載の方法。 - 樹脂リッチポケット(132)内に前記改質材(200)を含む前記ステップは、
連続的な強化フィラメントを有する繊維トウ(118)の一外縁部に、一又は複数の連続的な改質フィラメント(208)を適用することと、
前記連続的な強化フィラメント(120)と同一の概略的な方向に沿って、前記改質フィラメントを配向することとを含む、請求項9から12のいずれか一項に記載の方法。 - 樹脂リッチポケット(132)内に前記改質材(200)を含む前記ステップは、
前記繊維のレイアップ中に、前記繊維(118)に前記改質材(200)を適用することを含む、請求項9から13のいずれか一項に記載の方法。 - 樹脂リッチポケット(132)内に前記改質材(200)を含む前記ステップは、
繊維プリフォームのレイアップ中に、前記繊維プリフォーム(130)に前記改質材(200)を適用することを含む、請求項9から14のいずれか一項に記載の方法。
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US14/493,363 US10472472B2 (en) | 2014-09-23 | 2014-09-23 | Placement of modifier material in resin-rich pockets to mitigate microcracking in a composite structure |
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Cited By (3)
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JP2020509957A (ja) * | 2017-03-23 | 2020-04-02 | ボストン・マテリアルズ・インコーポレイテッドBoston Materials, Inc. | 繊維強化複合材料、そのための方法、及び同一のものを含む物品 |
US11479656B2 (en) | 2019-07-10 | 2022-10-25 | Boston Materials, Inc. | Systems and methods for forming short-fiber films, composites comprising thermosets, and other composites |
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US20160083535A1 (en) | 2016-03-24 |
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US10472472B2 (en) | 2019-11-12 |
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