JP2023011570A - サンドイッチ状の複合材料の調製方法 - Google Patents
サンドイッチ状の複合材料の調製方法 Download PDFInfo
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- JP2023011570A JP2023011570A JP2022159668A JP2022159668A JP2023011570A JP 2023011570 A JP2023011570 A JP 2023011570A JP 2022159668 A JP2022159668 A JP 2022159668A JP 2022159668 A JP2022159668 A JP 2022159668A JP 2023011570 A JP2023011570 A JP 2023011570A
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- polymeric material
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- B32B2262/106—Carbon fibres, e.g. graphite fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/12—Conjugate fibres, e.g. core/sheath or side-by-side
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2305/07—Parts immersed or impregnated in a matrix
- B32B2305/076—Prepregs
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- B32B2305/00—Condition, form or state of the layers or laminate
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Abstract
Description
た製品とは、高分子材料、具体的には熱可塑性材料または熱硬化性材料から構成される樹
脂マトリックスを含み得る製品を意味する。このマトリックスは、高分子材料の融点より
も高い融点を有し得る材料で強化されてもよい。FRPは、通常「繊維強化プラスチック
」を指す。
の複合材料は、耐腐食性も非常に良好である。FRP型の複合材料は、別々に取った構成
部品の特性よりも優れた特性を有する。FRP型の複合材料は、具体的には自動車または
航空機の分野では、従来の鉄製部品を軽量化することができる。また、FRP型の複合材
料は、耐疲労性も良好である。
材料で作られた支持構造体の使用によって、強化繊維布地の使用によって、不織布もしく
はマット、または織り方法によって得られた他の製品の使用によってなど、異なる方法で
得ることができる。
ら構成されていてもよい。布地強化材の製造には、経糸とは別の糸巻きを使用する必要が
あり得る。
ッシュを形成し、連続した列で配置されている、連続した糸から得られる製品を意味する
ことができる。従来の編み生地の製作には、糸条メッシュ用の糸巻きのみが必要である。
メントは、練紡(すなわち、ねじれることなく組み合わされた平行な連続フィラメントの
集合体)、スパン糸(すなわち、ねじれを伴って組み合わされた短いステープル繊維の集
合体)であってもよい。また、糸は、いくつかの糸または異なる材料のフィラメントの組
み合わせであってもよい。この組み合わせは、ねじること、巻くことによって行うことが
できる。したがって、高分子材料および強化材料を含む糸を製作することが可能である。
例えば、アラミド型、炭素型、ガラス型の強化糸と、熱可塑性の糸(すなわち、ポリプロ
ピレン、ポリカーボネート、ポリエーテルイミド(PEI))とを組み合せることが可能
である。このような種類の糸を混紡糸と呼ぶことができる。
ムを得ることを可能にできる。このプリフォームは、一般に「プリプレグ」と呼ばれてい
るねばねばと粘着性のある樹脂をあらかじめ含浸させた布地とは対照的に、「ドライ」で
あると言われている。
料もしくはセル状ハニカム材料の中心体あるいはコアを含み得る、サンドイッチの形で製
品を製作することも可能である。これらの製品は、サンドイッチの形の構造であるため、
同じ重量であればはるかに良好な性能を実現することができる。
与える。外皮の良好な含浸には、一般に何段階かの圧密方法を必要とするが、これには時
間と資源がかかる。これは特に、最終製品が複雑な三次元形状を有するときに起こる。
高分子材料を有する、あらかじめ含浸させた外皮を使用して外層を製作するステップと
、
コア、例えば、ハニカムまたは発泡体の両側に外層を並置するステップと、
すべての層のコアへの接続を確実にしながら、高分子材料の溶融を確実にするために外
層を圧密化するステップと、を含むことができる。
地のひだの良好な圧密を確実にし、外皮とコアとの間の良好な接着を確実にするために、
数回の硬化が必要になる場合がある。このような製造方法では、外層の硬化に耐えるよう
にサンドイッチのコアを特別に選択することができる。場合によっては、温度および圧力
をかけることによってサンドイッチのコアが損なわれることも分かっている。例えば、こ
の処理中に発泡コアがたわむか、または収縮することが確認されている。
維ならびに樹脂で形成された外皮を有する複合材料サンドイッチパネルの製造方法を概説
している。コアの連続気泡内の樹脂の溶融を回避するために、この特許文献では、外皮と
コアとの間に水密膜および接着剤の薄膜を介在させている。型を閉じた後、1回の熱サイ
クルで、接着剤を重合させ、次いで、圧力下で樹脂を繊維に注入し、最後に樹脂を重合さ
せることを可能にする。
いう欠点がある。これにより、最終製品のコストが高くなる。
ネルの製造方法を概要している。本方法では、ハニカム構造の充填を回避するために、型
内に、膨張材料の薄膜およびコアの面の各々に対するバリア布地を設置する必要がある。
を使用し、外層を圧密化するときにインサートをコアに置き換える。あとは、熱処理を実
行して外層とコアを接合するだけである。
例えば、高分子材料および強化材料を含み得る糸を編む、または織ることによって外層
もしくはあらかじめ含浸させた外皮の実施形態では、
型内に、外層、耐熱材料のインサート、および第2の外層を並置するステップと、
強化材料の融点に達することなく、高分子材料の圧密および融合を可能にすることがで
きる温度ならびに圧力で硬化させることによって、外皮を成形するステップと、
インサートを取り外し、2枚のあらかじめ形成された外皮間に、例えば、発泡体または
ハニカムのサンドイッチのコアを導入するステップと、
外層とサンドイッチのコアとの間の接着を可能にする温度で組み合わせを硬化させるス
テップと、を含むことができる。
出によって提供され得る。
型内に、強化布地、熱に強い材料のインサート、および別の強化布地を並置するステッ
プと、
樹脂を注入するステップと、
インサートを取り外し、2枚のあらかじめ形成された外皮間に、例えば、発泡体または
ハニカムのサンドイッチのコアを導入するステップと、
外層とサンドイッチのコアとの間の接着を可能にする温度で全体を硬化させるステップ
と、を含むことができる。
。
ことができる。
る。
この接着剤は、液体接着剤、接着膜、または熱可塑性繊維を含む編みプリフォームであっ
てもよい。
約2mm~約50mm以下、好ましくは少なくとも約3mm~約40mm以下、より好ま
しくは少なくとも約5mm~約25mm以下とすることができ、外皮の厚さは、少なくと
も約0.2mm~約5mm以下、好ましくは少なくとも約0.4mm~約2mm以下、よ
り好ましくは少なくとも約0.5mm~約1mm以下とすることができる。
ドイッチの本体の材料の選択と、外層の材料の選択とを分離する製造方法を提供すること
とすることができる。
I)、ポリプロピレン(PP)、ポリ(エチレンテレフタレート)(PET)、ポリエー
テルエーテルケトン(PEEK)などの熱可塑性材料、または例えば、エポキシ、シアネ
ートエステル、フェノール樹脂、ポリエステルなどの熱硬化性材料が挙げられ得る。
材料、ガラス、石英、炭素、玄武岩、金属などの無機材料が挙げられ得る。
ことを可能にできるため、特に有利であることが証明された。本発明による方法は、外皮
の良好な含浸を実現することを可能にできる。
かが本明細書に記載される。本明細書を読んだ後、当業者は、それらの態様および実施形
態が例示にすぎず、本発明の範囲を限定しないことを理解するであろう。実施形態は、以
下にリスト化される実施形態のうちのいずれか1つ以上に従うことができる。
の複合材料製品は、2枚の外層およびコアを備え、外層は、繊維強化高分子材料のマトリ
ックスを有し、高分子材料は、繊維を構成する材料の融点よりも低い融点を有しており、
高分子材料の融点よりも高い融点を有する材料から構成されたインサートを使用し、その
上に外層が圧密化され、続いて、このインサートは、サンドイッチのコアに置き換えられ
、次いで、組み合わせ品は、外層をコアに接合するための圧密処理を受けることを特徴と
する、方法。
構成されるプリフォームを製作するステップと、型内に、第1のプリフォーム、インサー
ト、および第2のプリフォームを並置するステップと、強化材料またはインサートの材料
の融点に達することなく高分子材料の融点の温度に達するように、加熱および加圧するこ
とによって外層を得るためにプリフォームを圧密化するステップと、インサートを取り外
し、外層を分離してサンドイッチのコアを挿入するステップと、外層をコアに接着させる
ために熱処理するステップと、こうして得られた製品を冷却するステップと、を含むこと
を特徴とする、実施形態1に記載の方法。
ることを特徴とする、実施形態2に記載の方法。
作られることを特徴とする、実施形態2に記載の方法。
間に剥離コストを加えることを特徴とする、実施形態2に記載の方法。
材料から作られた第2の布地もしくは編物を並置するステップと、高分子材料の樹脂を圧
力ならびに温度下で注入するステップと、インサートを取り外してサンドイッチのコアを
挿入するステップと、外層をサンドウィッチのコアに接着するために圧密硬化させるステ
ップと、こうして得られた製品を冷却するステップと、を含むことを特徴とする、実施形
態1に記載の方法。
の方法。
ことを特徴とする、実施形態1に記載の方法。
(PC)、ポリエーテルイミド(PEI)、ポリプロピレン(PP)、ポリ(エチレンテ
レフタレート)(PET)、ポリエーテルエーテルケトン(PEEK)から選択されるこ
とを特徴とする、実施形態1に記載の方法。
ネートエステル、フェノール樹脂、およびポリエステルから選択されることを特徴とする
、実施形態1に記載の方法。
徴とする、実施形態1に記載の方法。
とする、実施形態1に記載の方法。
とを特徴とする、実施形態1に記載の方法。
いくつかの「プリプレグ」と呼ばれるシアン酸エステルを含浸させた複数の炭素繊維布
地を鋼型にドレープして、サンドイッチの第1の外皮を形成する。
せる。
レープすることによって作られる。
する。接合部は、外皮が接合してコアの領域を被覆する部分である。
下、約90~120℃の温度で最終圧密処理が施される。
第1の外皮は、鋼型に蒸着させた炭素繊維の数枚の非含浸強化布地の積層によって形成
される。
シアン酸エステル樹脂は、既知のRTM型の方法によって、10~15バールの圧力下
、80~120℃の温度で注入される。
て分離される。
面上の)外皮に塗布される。
に導入される。
サンドイッチ全体には、外皮とコアを接合するために、真空下で4時間の熱処理(180
~200℃)が施される。
編物は、ガラス繊維および熱可塑性繊維を含む混紡糸を使用して作られる。
する。接合部は、2枚の外皮が接合してコアの領域を被覆する部分である。
型は、鋼金カウンタ型によって閉じられる。
て圧密化される。
て分離される。
るために、ハニカムコアの両側上に蒸着させる。
の代わりに2枚の外皮間に導入される。
0~250℃)が施される。
編物は、ガラス繊維および熱可塑性繊維を含む混紡糸を使用して作られる。
て圧密化される。
て分離される。
膨張エポキシ発泡コアは、サンドイッチを形成するために、インサートの代わりに2枚の
外皮間に注入される。
~120℃)が施される。
編物は、ガラス繊維および熱可塑性繊維を含む混紡糸を使用して作られる。
蒸着させて外皮を圧密化する。型を閉じて真空を引き出す。型を加圧(3~10バール)
し、誘導加熱によって200~250℃の温度まで急速に加熱する。この温度は、数分間
維持される。冷却後、ブラダーを除去し、第1の外皮が製作される。
液体状接着剤膜、ハニカム構造、最終複合材料の先に圧密化された内側皮が連続的に蒸着
される。
真空を最大限に引き出し、外皮とコアを接合するために組み合わせ品を65~120℃の
温度に数時間加熱する(オーブン加熱方法)。
Claims (13)
- サンドイッチ状の複合材料製品を製造する方法であって、前記サンドイッチ状の複合材
料製品が、2枚の外層およびコアを備え、前記外層が、繊維強化高分子材料のマトリック
スを有し、前記高分子材料が、繊維を構成する材料の融点よりも低い融点を有しており、
前記方法が、前記高分子材料の前記融点よりも高い融点を有する材料から構成されたイ
ンサートを使用し、その上に前記外層が圧密化され、
続いて、前記インサートが、前記サンドイッチの前記コアに置き換えられ、次いで、組
み合わせ品は、前記外層を前記コアに接合するための圧密処理を受けることを特徴とする
、方法。 - 前記サンドイッチの前記外層となることが意図されている繊維強化高分子材料から構成
されるプリフォームを製作するステップと、
型内に、第1のプリフォーム、前記インサート、および第2のプリフォームを並置する
ステップと、
前記強化材料または前記インサートの前記材料の前記融点の温度に達することなく前記
高分子材料の前記融点の温度に達するように、加熱および加圧することによって前記外層
を得るために前記プリフォームを圧密化するステップと、
前記インサートを取り外し、前記外層を分離して前記サンドイッチの前記コアを挿入す
るステップと、
前記外層を前記コアに接着させるために熱処理するステップと、
こうして得られた前記製品を冷却するステップと、を含むことを特徴とする、請求項1
に記載の方法。 - 前記プリフォームが、あらかじめ含浸された高分子樹脂布地を使用して作られることを
特徴とする、請求項2に記載の方法。 - 前記プリフォームが、前記強化材料および前記高分子材料を含む糸を編むことによって
作られることを特徴とする、請求項2に記載の方法。 - コアのないゾーンを形成するように意図されている場所で、前記プリフォーム間に剥離
コストを加えることを特徴とする、請求項2に記載の方法。 - 型内に、強化材料から作られた布地または編物、前記インサート、および強化材料から
作られた第2の布地または編物を並置するステップと、
高分子材料の樹脂を圧力および温度下で注入するステップと、
前記インサートを取り外して前記サンドイッチの前記コアを挿入するステップと、
前記外層を前記サンドウィッチの前記コアに接着するために圧密硬化させるステップと
、
こうして得られた前記製品を冷却するステップと、を含むことを特徴とする、請求項1
に記載の方法。 - 前記インサートが、シリコーン製であることを特徴とする、請求項1に記載の方法。
- 前記強化材料が、ガラス繊維、炭素繊維、およびアラミド繊維から選択されることを特
徴とする、請求項1に記載の方法。 - 前記高分子材料が、熱可塑性型の材料であり、具体的には、ポリカーボネート(PC)
、ポリエーテルイミド(PEI)、ポリプロピレン(PP)、ポリ(エチレンテレフタレ
ート)(PET)、ポリエーテルエーテルケトン(PEEK)から選択されることを特徴
とする、請求項1に記載の方法。 - 前記高分子材料が、熱硬化性型の材料であり、具体的には、エポキシ、シアネートエス
テル、フェノール樹脂、およびポリエステルから選択されることを特徴とする、請求項1
に記載の方法。 - 前記サンドウィッチの前記コアが、セル状ハニカム材料から構成されることを特徴とす
る、請求項1に記載の方法。 - 前記コアの厚さが、少なくとも約2mm~約50mm以下であることを特徴とする、請
求項1に記載の方法。 - 前記外層の各々の厚さが、少なくとも約0.2mm~約5mm以下であることを特徴と
する、請求項1に記載の方法。
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FR1873207A FR3089854B1 (fr) | 2018-12-18 | 2018-12-18 | Procede de preparation d’un materiau composite sous forme de sandwich |
FR1873207 | 2018-12-18 | ||
PCT/EP2019/085359 WO2020127057A1 (en) | 2018-12-18 | 2019-12-16 | Method for the preparation of composite material in sandwich form |
JP2021535650A JP7153801B2 (ja) | 2018-12-18 | 2019-12-16 | サンドイッチ状の複合材料の調製方法 |
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US (2) | US11420368B2 (ja) |
EP (1) | EP3898208A1 (ja) |
JP (2) | JP7153801B2 (ja) |
KR (2) | KR102656324B1 (ja) |
CN (1) | CN113329866A (ja) |
BR (1) | BR112021011626A2 (ja) |
CA (1) | CA3122042A1 (ja) |
FR (1) | FR3089854B1 (ja) |
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WO (1) | WO2020127057A1 (ja) |
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FR3089854B1 (fr) | 2018-12-18 | 2022-02-04 | Saint Gobain Performance Plastics France | Procede de preparation d’un materiau composite sous forme de sandwich |
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-
2019
- 2019-12-16 KR KR1020237005647A patent/KR102656324B1/ko active IP Right Grant
- 2019-12-16 EP EP19820762.3A patent/EP3898208A1/en active Pending
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- 2019-12-16 US US16/714,965 patent/US11420368B2/en active Active
- 2019-12-16 CA CA3122042A patent/CA3122042A1/en active Pending
- 2019-12-16 JP JP2021535650A patent/JP7153801B2/ja active Active
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KR20210110837A (ko) | 2021-09-09 |
WO2020127057A1 (en) | 2020-06-25 |
US20220339830A1 (en) | 2022-10-27 |
CN113329866A (zh) | 2021-08-31 |
CA3122042A1 (en) | 2020-06-25 |
IL284055A (en) | 2021-08-31 |
EP3898208A1 (en) | 2021-10-27 |
US11420368B2 (en) | 2022-08-23 |
KR102508576B1 (ko) | 2023-03-15 |
JP2022515398A (ja) | 2022-02-18 |
KR102656324B1 (ko) | 2024-04-12 |
FR3089854B1 (fr) | 2022-02-04 |
US20200189157A1 (en) | 2020-06-18 |
JP7153801B2 (ja) | 2022-10-14 |
FR3089854A1 (fr) | 2020-06-19 |
KR20230030667A (ko) | 2023-03-06 |
BR112021011626A2 (pt) | 2021-08-31 |
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