JP6284239B2 - 繊維−樹脂複合シート及びそれを含む物品 - Google Patents
繊維−樹脂複合シート及びそれを含む物品 Download PDFInfo
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Description
(i)第一および第二ポリマーが二相ブレンドを形成し、
(ii)第一ポリマーが、熱可塑性であり、75〜400℃の融点を有し、かつ第二ポリマーと連続または共連続相を形成し、
(iii)第二ポリマーが、この第一ポリマーの連続または共連続相中に分散し、0.01〜15μmの有効直径を有し、かつ25〜350℃の融点を有し、
(iv)第一ポリマーが、ブレンド物中の第一および第二ポリマーを合わせた重量の35〜99重量%を構成し、
(v)第二ポリマーが、第一ポリマーの融点よりも少なくとも5℃低い融点を有し、かつ
(vi)基材の強化用繊維が、3〜60g/dtexの引張強度(tenacity)および5〜200μmのフィラメント径を有する。
本発明は、強化用繊維性基材と、その基材の表面を覆うまたはその中に入り込む樹脂とを含む繊維−樹脂複合シートを対象とする。この基材は、紙または布の形態であることができる。
好ましくは基材の強化用繊維は、3〜60g/dtexのフィラメント引張強度および5〜200μmのフィラメント径を有する。幾つかの実施形態では7〜32μmのフィラメント径を有する繊維が好ましい。他の実施形態ではフィラメント引張強度が8〜60g/dtexである。幾つかの実施形態では基材は紙である。
高分子樹脂は、強化用基材の表面を覆うまたはその中に入り込む。幾つかの実施形態では樹脂は部分的に基材に染み込むに過ぎない。塗料樹脂は、第一の熱可塑性ポリマーおよび第二の熱可塑性ポリマーを含む。その第一および第二ポリマーは、二相ブレンドを形成する。第一ポリマーは、その第一および第二ポリマーのブレンド物の35〜99重量%を構成する。幾つかの実施形態では第一ポリマーは、その第一および第二ポリマーのブレンド物の45〜85重量%、また45〜70重量%さえ構成する。複合シートは、第三ポリマーを含んでいてもよい。
第一および第二の両ポリマーは、良好な機械的性質および良好な耐薬品性を有するポリマーのグループに属する。このような樹脂は、業界においてはしばしば高性能ポリマー(High Performance Polymers)または工業用熱可塑性樹脂(Engineered Thermoplastics)と呼ばれる。幾種類かのゴムおよびエラストマーもまた、この材料のカテゴリーに適合する。
第二ポリマーは、第一ポリマーの連続相または共連続相中に分散され、0.01〜15μmの有効直径を有する。
幾つかの実施形態では第三ポリマーは、第一、第二、および第三ポリマーの総重量を基準にして0〜99.7重量%の量で存在することができる。第三ポリマーはまた、第一および第二ポリマーのバイモーダル成分であってもよい。第三ポリマーは、ポリエーテルエーテルケトン(PEEK)、ポリエーテルケトン(PEK)、ポリエーテルケトンケトン(PEKK)、ポリフェニレンスルフィド(PPS)、ポリエーテルイミド(PEI)、ポリスルホン(PSU)、ポリイミド(PI)、およびポリフェニレンオキシド(PPO)であることができる。第三ポリマーは、基材上に別の層として存在することもでき、また第一ポリマーに取って代わることもできる。別の実施形態では第三ポリマーは第一ポリマーとブレンドされる。このようなブレンド物の例は、ポリアミド第一ポリマーとポリイミド第三ポリマーである。
上記樹脂被覆基材を組み込んで、構造コア、耐衝撃性物品、または積層板などの複合物品にすることができる。
ハニカムコアの密度は、ASTM C271−61に従って求めた。
1層の布Fを含み、その布Fの両面に1層の押出樹脂シートR1を有する複合体アッセンブリを作製した。
1層の布Fを含み、その布Fの両面に1層の押出樹脂シートR2を有する複合体アッセンブリを作製した。次いで、その得られた複合体アッセンブリを、平行平板型自動プレス中で比較例Aと同様に圧縮成形した。次いで、その得られた積層板を、25℃において50%RHで24時間コンディショニングしてからラップシヤー試験用に切断した。フィルム接着剤を用いて重なり領域を接合する代わりに、ラップシヤー試片を20バールの圧力を使用して平行平板型自動プレス中で5℃/分の速度で100℃から250℃まで加熱し、その温度および圧力条件を15分間維持しながら圧縮溶接することによって融着させたことを除いて、オーバーラップスプライス試片を実施例Aと同様に調製した。次いで、金型および内容物を5℃/分の速度で50℃まで冷却してから圧力を解放した。
この実施例は、押出樹脂シートR2の代わりにR1を使用したことを除いて実施例1と同一のやり方で調製し試験された。試験された試料の検査は接着破壊を示した。すなわち試験用試片(test coupon)は、融着(溶接)継ぎ部の領域で故障した。これは、実施例1で使用した樹脂シートR2が、比較例Bで使用した樹脂シートR1よりも強固な複合体を実現するという結論につながる。
1層の紙Pを含み、その紙シートの両面に1層の押出樹脂シートR3を有する複合体アッセンブリを作製した。次いで、その得られた複合体アッセンブリを、20バールの圧力下において平行平板型自動プレス中で5℃/分の速度で100℃から220℃まで加熱する間に圧縮成形した。この圧力および温度条件を15分間維持し、次いで依然圧力下のままでアッセンブリを5℃/分の速度で50℃まで冷却した。
1層の紙Pを含み、その紙シートの両面に1層の押出樹脂シートR4を有する複合体アッセンブリを作製した。比較例Cの製造の場合と同じ加工条件が使用された。
1層の布Sを含み、その布の両面に1層の押出樹脂シートR3を有する複合体アッセンブリを作製した。比較例Cの製造の場合と同じ加工条件が使用された。
1層の布Sを含み、その布の両面に1層の押出樹脂シートR4を有する複合体アッセンブリを作製した。比較例Cの製造の場合と同じ加工条件が使用された。
1層の布Fを含み、その布Fの両面に1層の押出樹脂シートR1を有する複合体アッセンブリを作製した。比較例Cの製造の場合と同じ加工条件が使用された。
1層の布Fを含み、その布の両面に1層の押出樹脂シートR4を有する複合体アッセンブリを作製した。比較例Cの製造の場合と同じ加工条件が使用された。
1層の布Fを含み、その布の両面に1層の押出樹脂シートR2を有する複合体アッセンブリを作製した。比較例Aの製造の場合と同じ加工条件が使用された。
この比較例では、比較例Aの2枚の積層板を、Cytec Engineered Materials,Tempe,AZから商品名FM 300Uで市販されている重さが150gsmである構造接着用エポキシフィルム接着剤によって接合した。接合は、10バールの圧力を使用して平行平板型自動プレス中で5℃/分の速度で100℃から175℃まで加熱する間に行われた。この圧力および温度条件を60分間維持し、次いで依然圧力下のままでプレスを15℃/分の速度で50℃まで冷却した。
比較例A、Dおよび実施例2、3のそれぞれから製造された個々の複合体を貼り合せた強化層を熱成形試験にかけた。試験試料の寸法は、75mm×25mmであった。これら試料を成形工具中に置いた。この成形工具は2枚のアルミニウム板を備え、各板は150mm×200mmであり、幅方向に折り曲げられて2つの側面間で90°の角度を有するL字形を形成した。工具の2枚の板を成形温度まで加熱した。成形温度は、50℃、100℃、150℃、175℃、185℃、200℃、225℃、250℃、275℃、300℃、および325℃であった。周囲温度(室温)に保った試験用試片を2枚の加熱した板の間に置き、オーブン内に1分間閉じ込めてからオーブンから取り出し、室温まで冷却した。この造形された積層板を包含する成形用工具を周囲温度に24時間保持してから外側の板を除去した。各温度条件について少なくとも3枚の複合積層板を試験した。測定の目的は、積層板が成形用工具の外側の構成要素の除去後にいかに完全にその形状を失わずにいるかを観察することであった。図6は、成形用工具の内側のL字形構成要素を61に示す。積層板を62に示す。第一角A1を、工具の構成要素61の頂点から5mm離れたところで測定する。第二角A2を、工具の構成要素61の頂点から35mm離れたところで測定する。もし成形された積層板が、金型から取り出した時にその「成形したままの」形状を100%保持するならば、角度A1およびA2は同一であるはずである。造形された積層板がその元の平坦な予成形の形状に戻る傾向があれば、角度A2がA1よりも大きいという結果を生じさせるはずである。A2とA1の差が最も少ない複合積層板構築物は、最も良好な成形後保形性および熱成形性を有することになる。結果を、樹脂R3およびR4の融点温度に近いが、それを下回る150℃の成形温度について表1に要約する。
比較例A、Eおよび実施例4、5に従って製造された個々の複合体を貼り合せた強化層を、ASTM D1876−08に従ってT−剥離試験により試験した。試験片は、追加の接着剤なしに熱で融着させた各実施例の2枚の積層板から成った。試験片の寸法は150mm×25mmであり、接合長さは100mmであった。試片の融着は、それぞれ樹脂系R3またはR4で作られた熱可塑性積層板についてそれぞれ平行平板型自動プレス中で10バールの圧力を使用して220℃または250℃で行った。その温度を10バールで5分間保ち、次いで依然圧力下のままで50℃/分の速度で50℃まで冷却した。
次に、本発明の態様を示す。
1. 強化用繊維性基材と、前記基材の表面を覆うまたはその中に入り込む樹脂とを含む繊維−樹脂複合シートであって、前記樹脂が、第一の熱可塑性ポリマーおよび第二の熱可塑性ポリマーを含み、
(i)前記第一および第二ポリマーが二相ブレンドを形成し、
(ii)前記第一ポリマーが、熱可塑性であり、75〜400℃の融点を有し、かつ前記第二ポリマーと連続または共連続相を形成し、
(iii)前記第二ポリマーが、前記第一ポリマーの前記連続または共連続相中に分散し、0.01〜15μmの有効直径を有し、かつ25〜350℃の融点を有し、
(iv)前記第一ポリマーが、前記ブレンド物中の第一および第二ポリマーを合わせた重量の35〜99重量%を構成し、
(v)前記第二ポリマーが、前記第一ポリマーの前記融点よりも少なくとも5℃低い融点を有し、かつ
(vi)前記基材の前記強化用繊維が、3〜60g/dtexの引張強度および5〜200μmのフィラメント径を有する、
複合シート。
2. 前記第一および第二ポリマーが、ポリオレフィン、重縮合物、または弾性ブロックコポリマーである、上記1に記載の複合シート。
3. 前記繊維性基材が紙または布である、上記1に記載の複合シート。
4. 前記ポリオレフィンがポリプロピレンである、上記2に記載の複合シート。
5. 前記紙が、10〜100重量%のアラミド繊維および0〜90重量%のアラミドバインダーを含む、上記3に記載の複合シート。
6. 前記紙が、p−アラミド、m−アラミド、セルロース、ポリエステル、ガラス繊維、セラミック、炭素、玄武岩、またはこれらの混合物の繊維を含む、上記3に記載の複合シート。
7. 前記布が、一方向性、多軸、三次元の織布か、または不織布であり、かつ8〜60g/dtexの引張強度および7〜32μmのフィラメント径を有するフィラメントを含む、上記3に記載の複合シート。
8. 前記布が、芳香族ポリアミド、芳香族コポリアミド、ガラス、セラミック、炭素、玄武岩、またはこれらの混合物のフィラメントを含む、上記7に記載の複合シート。
9. 前記不織布が、フェルト、スパンレースシート、またはスパンボンデッドシートである、上記7に記載の複合シート。
10. 上記1に記載の前記複合シートを含む複合物品。
11. 前記物品が、ハニカム構造体、折り畳みコア構造体、耐衝撃性物品、または複合積層板である、上記10に記載の物品。
12. 第四の樹脂を含む上記11に記載のハニカムまたは折り畳みコア構造体。
13. 少なくとも1枚の表面シートが前記コアの両外面に取り付けられている上記11に記載のハニカムまたは折り畳みコアを含む構造用サンドイッチパネル。
Claims (4)
- 強化用繊維性基材と、前記基材の表面を覆うまたはその中に入り込む樹脂とを含む繊維−樹脂複合シートであって、前記樹脂が、第一の熱可塑性ポリマーおよび第二の熱可塑性ポリマーからなり、
(i)前記第一および第二ポリマーが二相ブレンドを形成し、
(ii)前記第一ポリマーが、熱可塑性であり、75〜400℃の融点を有し、かつ前記第二ポリマーと連続または共連続相を形成し、
(iii)前記第二ポリマーが、前記第一ポリマーの前記連続または共連続相中に分散し、0.01〜15μmの有効直径を有し、かつ25〜350℃の融点を有し、
(iv)前記第一ポリマーが、前記ブレンド物中の第一および第二ポリマーを合わせた重量の45〜85重量%を構成し、
(v)前記第二ポリマーが、前記第一ポリマーの前記融点よりも少なくとも5℃低い融点を有し、かつ
(vi)前記基材の前記強化用繊維が、3〜60g/dtexの引張強度および5〜200μmのフィラメント径を有する、
複合シートであって、
前記基材の前記強化用繊維がアラミド繊維であり、第一ポリマーがポリアミドであり、かつ第二ポリマーがアイオノマーであることを特徴とする複合シート。 - 請求項1に記載の前記複合シートを含む複合物品。
- 前記物品が、ハニカム構造体、折り畳みコア構造体、耐衝撃性物品、または複合積層板である、請求項2に記載の物品。
- 少なくとも1枚の表面シートが前記コアの両外面に取り付けられている請求項3に記載のハニカムまたは折り畳みコアを含む構造用サンドイッチパネル。
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| US5527584A (en) | 1993-10-19 | 1996-06-18 | Hexcel Corporation | High thermal conductivity triaxial non-metallic honeycomb |
| CA2250011A1 (en) | 1997-02-28 | 1998-09-03 | E.I. Du Pont De Nemours And Company | New ionomers based on copolymers of ethylene with both mono- and dicarboxylic acids and polyamide blends containing these ionomers |
| EP0966352B1 (en) * | 1997-03-14 | 2002-08-28 | E.I. Dupont de Nemours and Company, Inc. | Composite sheet material comprising polyamide film and fabric |
| DE19913830A1 (de) | 1999-03-26 | 2000-09-28 | Jochen Pflug | Faltwabe aus Wellpappe, Verfahren und Vorrichtung zu deren Herstellung |
| US6245407B1 (en) | 1999-04-27 | 2001-06-12 | Hexcel Corporation | Thermoformable honeycomb structures |
| US6935997B2 (en) | 2000-09-14 | 2005-08-30 | Rutgers, The State University Of New Jersey | Patterning technology for folded sheet structures |
| DE10252941B4 (de) | 2002-11-14 | 2009-09-10 | Airbus Deutschland Gmbh | Verfahren zur Herstellung einer Kernstruktur für einen Kernverbund |
| US7115089B2 (en) | 2003-02-24 | 2006-10-03 | Rutgers, The State University Of New Jersey | Technology for continuous folding of sheet materials |
| JP2006526684A (ja) * | 2003-06-05 | 2006-11-24 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | エチレン酸コポリマーとポリアミドを含む毛羽立ち防止組成物 |
| CN100402179C (zh) | 2003-11-20 | 2008-07-16 | 喀山航空工业科学研究院股份公开公司 | 生产具有曲折起皱芯的夹板的方法 |
| JP2007112877A (ja) * | 2005-10-19 | 2007-05-10 | Unitika Ltd | 熱可塑性樹脂組成物及びそれからなる自動車部品成形体 |
| US20080044659A1 (en) * | 2005-12-15 | 2008-02-21 | Polystrand, Inc. | Composite laminate and method of manufacture |
| US8003202B2 (en) * | 2006-06-16 | 2011-08-23 | E.I. Du Pont De Nemours And Company | Semiaromatic polyamide composite article and processes for its preparation |
| US7771811B2 (en) * | 2006-12-15 | 2010-08-10 | E.I. Du Pont De Nemours And Company | Honeycomb from controlled porosity paper |
| JP5151535B2 (ja) * | 2007-02-22 | 2013-02-27 | 東レ株式会社 | サンドイッチ構造体、およびそれを用いた成形体、電子機器筐体 |
| US20100048078A1 (en) | 2008-08-21 | 2010-02-25 | E. I. Du Pont De Nemours And Company | Folded Core Having a High Compression Modulus and Articles Made from the Same |
| US20130095716A1 (en) * | 2011-10-17 | 2013-04-18 | E. I. Du Pont De Nemours And Company | Composite material; a ballistic resistant article made from same and method of making the article |
-
2013
- 2013-02-20 US US13/771,396 patent/US20140113104A1/en not_active Abandoned
- 2013-02-22 CN CN201380009991.3A patent/CN104114768B/zh active Active
- 2013-02-22 BR BR112014021166A patent/BR112014021166B8/pt active IP Right Grant
- 2013-02-22 WO PCT/US2013/027375 patent/WO2013126739A1/en not_active Ceased
- 2013-02-22 JP JP2014558878A patent/JP6284239B2/ja active Active
- 2013-02-22 CA CA2864826A patent/CA2864826C/en active Active
- 2013-02-22 EP EP13708033.9A patent/EP2817451B1/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102298082B1 (ko) * | 2021-01-19 | 2021-09-03 | 주식회사 코코드론 | 레이저 커팅을 위한 다층 접합 종이 보드 제조방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104114768B (zh) | 2017-06-27 |
| US20140113104A1 (en) | 2014-04-24 |
| EP2817451A1 (en) | 2014-12-31 |
| CN104114768A (zh) | 2014-10-22 |
| EP2817451B1 (en) | 2016-01-13 |
| BR112014021166B1 (pt) | 2021-01-26 |
| BR112014021166B8 (pt) | 2023-02-28 |
| JP2015511194A (ja) | 2015-04-16 |
| CA2864826C (en) | 2020-02-18 |
| WO2013126739A1 (en) | 2013-08-29 |
| CA2864826A1 (en) | 2013-08-29 |
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