JP6659675B2 - 高圧縮強度を有するハニカムコア - Google Patents
高圧縮強度を有するハニカムコア Download PDFInfo
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Images
Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/84—Paper comprising more than one coating on both sides of the substrate
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/26—Polyamides; Polyimides
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/12—Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/30—Polyamides; Polyimides
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/80—Paper comprising more than one coating
- D21H19/82—Paper comprising more than one coating superposed
- D21H19/824—Paper comprising more than one coating superposed two superposed coatings, both being non-pigmented
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/70—Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2255/00—Coating on the layer surface
- B32B2255/12—Coating on the layer surface on paper layer
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- 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
- B32B2262/02—Synthetic macromolecular fibres
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Description
(i)少なくとも200秒/100ミリリットルのガーレー透気度を有する紙シートであって、30〜70重量パーセントのp−アラミド繊維を含む紙シートを形成する工程と、
(ii)紙シートの両面上に圧縮強化層を紙の重量に基づいて5重量パーセントまでの量で堆積させる工程と、
(iii)ハニカムを工程(ii)のシートから形成する工程と、
(iv)母材樹脂コーティングを工程(iii)のハニカムに適用する工程と
を含む、繊維強化複合構造物を製造する方法に関する。
(i)メタ−アラミドフィブリド、パラ−アラミドフィブリドまたはそれらの組合せを含む紙シートと、
(ii)紙シートの両方の外面上に紙の重量に基づいて5重量パーセントまでの量で堆積される圧縮強化層と、
(iii)圧縮強化層の表面にコートされる母材樹脂コーティング樹脂であって、フェノール樹脂、ポリイミド、ポリエーテルイミド、エポキシまたはそれらの組合せである、母材樹脂コーティング樹脂と
を順に含むハニカムコアに関する。
図1aは、本発明の1つのハニカム1の平面図であり、セル壁3によって形成されたセル2を示す。図1bは、図1aに示されるハニカムの立面図であり、セル壁の両端に形成される2つの外面または面4を示す。また、コアは端縁5を有する。図2は、ハニカムの三次元図である。六角形セル2およびセル壁3を有するハニカム1が示される。ハニカムの「T」寸法または厚さが図2の10に示される。六角形セルが示される。しかしながら、他の幾何学配列が可能であり、最も一般的な可能な配列のなかに四角形セル、過膨張セル、および屈曲性コアセルがある。このようなセルの型は当該技術分野で公知であり、可能な幾何学形状のセルの型に関するさらなる情報については、T.BitzerによるHoneycomb Technology(出版社Chapman&Hall,1997)を参照することができる。
コアを製造するために使用される紙の厚さは、コア構造物の最終用途または所望の性質に依存しており、いくつかの実施形態において厚さは0.6〜20ミル(15〜500マイクロメートル)である。より好ましくは、厚さが1.0〜3.0ミル(25〜75マイクロメートル)である。いくつかの実施形態において、紙の基本重量は0.5〜6オンス/平方ヤード(15〜200グラム/平方メートル)である。
本発明のハニカムのセル壁の紙のP−アラミド繊維は、カット繊維(フロック)の形態、パルプの形態またはそれらのブレンドであり得る。フロックは、著しいフィブリル化を発生せずにフィラメント繊維を短い長さに切断することによって製造された短繊維を含む。本発明において使用するために適した短い強化用繊維は、Hoinessに対する米国特許第5,474,842号明細書に記載された強化用繊維である。
本明細書中で用いられるとき、用語「圧縮強化層」は、紙重量の5重量パーセント以下の任意の適した量で紙の表面に適用され得る任意の物質を意味する。圧縮強化層の材料は、母材樹脂コーティングに適用する前にハニカム製造プロセスの任意の便利な段階で紙に適用され得る。例えば、ハニカムを製造するための発泡工程の場合、圧縮強化層は交点線を印刷する前に紙に適用され得る。ハニカムを製造するためのコルゲーションプロセスの場合、圧縮強化層はコルゲーションの前に紙に適用され得る。別の選択肢において、圧縮強化層は、ハニカム製造プロセスに関係なくハニカム形状が形成された後に紙に適用され得る。
紙密度は、0.9kPaの足圧を使用してASTM D374−99(再承認 2004)に基づいて測定されたときの紙厚さを使用して計算され、基本重量はASTM D646−96(再承認 2001)によって測定された。繊維デニールはASTM D1907−07を使用して測定される。
p−アラミド繊維紙がKevlar(登録商標)49フロックからなり、Nomex(登録商標)フィブリドを従来の紙成形装置で成形した。紙の組成は60重量%のKevlar(登録商標)フロックおよび40重量%のNomex(登録商標)フィブリドであった。Kevlar(登録商標)フロックは、1.5デニール/フィラメント(1.7dtex/フィラメント)の公称フィラメント線密度および6.4mmのカット長さを有した。Nomex(登録商標)フィブリドは、Grossに対する米国特許第3,756,908号明細書に記載されるように製造された。
p−アラミド繊維紙がKevlar(登録商標)49フロックからなり、Nomex(登録商標)フィブリドを従来の紙成形装置で成形した。紙の組成は73重量%のKevlar(登録商標)フロックおよび27重量%のNomex(登録商標)フィブリドであった。Kevlar(登録商標)フロックは、1.5デニール/フィラメント(1.7dtex/フィラメント)の公称フィラメント線密度および6.4mmのカット長さを有した。Nomex(登録商標)フィブリドは、Grossに対する米国特許第3,756,908号明細書に記載されるように製造された。次に、紙を330℃の温度で2600N/cmの線圧下でカレンダー処理した。これにより、38マイクロメートルの厚さ、0.75g/cm3の密度、0.9oz/yd2(33.9g/m2)の基本重量、および15秒/100ミリリットルのガーレー透気度を有する最終紙が製造された。紙をインラインで処理して実施例1に示されるような圧縮強化層を形成した。
圧縮強化層が存在しないこと以外は、紙およびハニカムを実施例1の場合と同様に作製した。コアは、表1に示される性質を有した。
紙を0.85g/cm3の高めの密度にカレンダー処理したこと以外は、紙を実施例1の場合と同様に作製した。実施例1におけるように圧縮強化層を紙上にコートし、ハニカムコアを先述のように製造した。このコアの性質も表1に示す。
本発明のまた別の態様は、以下のとおりであってもよい。
〔1〕(i)少なくとも200秒/100ミリリットルのガーレー透気度を有し、かつ30〜70重量パーセントのp−アラミド繊維を含む、紙シートを形成する工程と、
(ii)前記紙シートの両面上に圧縮強化層を紙の重量に基づいて5重量パーセントまでの量で堆積させる工程と、
(iii)ハニカムを工程(ii)の前記シートから形成する工程と、
(iv)母材樹脂コーティングを工程(iii)の前記ハニカムに適用する工程と
を含む、繊維強化複合構造物を製造する方法。
〔2〕前記紙がメタ−アラミドフィブリド、パラ−アラミドフィブリドまたはそれらの組合せを含む、前記〔1〕に記載の方法。
〔3〕母材コーティング樹脂がフェノール樹脂、ポリイミド、ポリエーテルイミド、エポキシまたはそれらの組合せである、前記〔1〕に記載の方法。
〔4〕前記圧縮強化層がグリセロールポリグリシジルエーテル、ポリペプチド−カーボンナノチューブ複合物、ポリペプチド−黒鉛複合物またはそれらの組合せを含む、前記〔1〕に記載の方法。
〔5〕紙密度が0.8g/cm 3 より大きい、前記〔1〕に記載の方法。
〔6〕前記母材樹脂がフェノール樹脂であり、および前記圧縮強化層がグリセロールポリグリシジルエーテルを含む、前記〔3〕または〔4〕に記載の方法。
〔7〕(i)メタ−アラミドフィブリド、パラ−アラミドフィブリドまたはそれらの組合せを含む紙シートと、
(ii)前記紙シートの両方の外面上に紙の重量に基づいて5重量パーセントまでの量で堆積される圧縮強化層と、
(iii)前記圧縮強化層の表面にコートされる、フェノール樹脂、ポリイミド、ポリエーテルイミド、エポキシまたはそれらの組合せである、母材樹脂コーティング樹脂と
を順に含むハニカム。
〔8〕前記圧縮強化層がグリセロールポリグリシジルエーテル、ポリペプチド−カーボンナノチューブ複合物、ポリペプチド−黒鉛複合物またはそれらの組合せを含む、前記〔7〕に記載のハニカム。
〔9〕前記母材樹脂がフェノール樹脂であり、および前記圧縮強化層がグリセロールポリグリシジルエーテルを含む、前記〔7〕または〔8〕に記載のハニカム。
Claims (3)
- (i)少なくとも200秒/100ミリリットルのガーレー透気度を有し、かつ30〜70重量パーセントのp−アラミド繊維を含む、紙シートを形成する工程と、
(ii)前記紙シートの両面上に圧縮強化層を紙の重量に基づいて5重量パーセントまでの量で堆積させる工程と、
(iii)ハニカムを工程(ii)の前記シートから形成する工程と、
(iv)母材樹脂コーティングを工程(iii)の前記ハニカムに適用する工程と
を含む、繊維強化複合構造物を製造する方法。 - 前記紙がメタ−アラミドフィブリド、パラ−アラミドフィブリドまたはそれらの組合せを含む、請求項1に記載の方法。
- (i)30〜70重量パーセントのp−アラミド繊維と、メタ−アラミドフィブリド、パラ−アラミドフィブリドまたはそれらの組合せとを含む、少なくとも200秒/100ミリリットルのガーレー透気度を有する、紙シートと、
(ii)前記紙シートの両方の外面上に紙の重量に基づいて5重量パーセントまでの量で堆積される圧縮強化層と、
(iii)前記圧縮強化層の表面にコートされる、フェノール樹脂、ポリイミド、ポリエーテルイミド、エポキシまたはそれらの組合せである、母材樹脂コーティング樹脂と
を順に含むハニカム。
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US201462059399P | 2014-10-03 | 2014-10-03 | |
US62/059,399 | 2014-10-03 | ||
PCT/US2015/052835 WO2016053970A1 (en) | 2014-10-03 | 2015-09-29 | Honeycomb core having a high compression strength |
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EP (1) | EP3201393B1 (ja) |
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US10960637B2 (en) * | 2018-07-02 | 2021-03-30 | The Boeing Company | Core structures for composite panels, aircraft including the same, and related methods |
JP7183073B2 (ja) * | 2019-02-22 | 2022-12-05 | デュポン帝人アドバンスドペーパー株式会社 | アラミド紙の製造方法 |
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US9976258B2 (en) | 2018-05-22 |
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EP3201393B1 (en) | 2019-05-22 |
JP2017534486A (ja) | 2017-11-24 |
US20180155876A1 (en) | 2018-06-07 |
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WO2016053970A1 (en) | 2016-04-07 |
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