JP6956300B1 - 強化繊維ステッチ基材、プリフォーム材、及び繊維強化複合材料、並びにこれらの製造方法 - Google Patents
強化繊維ステッチ基材、プリフォーム材、及び繊維強化複合材料、並びにこれらの製造方法 Download PDFInfo
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- JP6956300B1 JP6956300B1 JP2021531440A JP2021531440A JP6956300B1 JP 6956300 B1 JP6956300 B1 JP 6956300B1 JP 2021531440 A JP2021531440 A JP 2021531440A JP 2021531440 A JP2021531440 A JP 2021531440A JP 6956300 B1 JP6956300 B1 JP 6956300B1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/14—Making preforms characterised by structure or composition
- B29B11/16—Making preforms characterised by structure or composition comprising fillers or reinforcement
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- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
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- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
- B29C70/226—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure the structure comprising mainly parallel filaments interconnected by a small number of cross threads
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
- B32B5/073—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper characterised by the fibrous or filamentary layer being mechanically connected to another layer by sewing, stitching, hook-and-loop fastening or stitchbonding
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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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/12—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
- B32B5/265—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer
- B32B5/266—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer next to one or more non-woven fabric layers
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- D—TEXTILES; PAPER
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- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/002—Inorganic yarns or filaments
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- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
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- D04H3/115—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by applying or inserting filamentary binding elements
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- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
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Abstract
Description
1. 強化繊維ステッチ基材
本発明の強化繊維ステッチ基材は、強化繊維シートがステッチ糸によりステッチされて成る。本発明において、ステッチ糸は、180℃で2時間加熱し冷却した後の繊維軸方向の線膨張係数が−1×10−6〜70×10−6/Kのステッチ糸である。このようなステッチ糸を使用することにより、ステッチ糸の単糸と繊維強化複合材料を構成するマトリクス樹脂との界面において、特に冷熱衝撃に起因する内部応力の発生と、それに続く界面剥離や局所的な応力集中を減少させることができる。そのため、このようなステッチ糸を強化繊維ステッチ基材に用いることで、得られる繊維強化複合材料において、ステッチ糸に起因するマイクロクラックの形成を抑制できる。
本発明で用いるステッチ糸は、180℃で2時間加熱し冷却した後の繊維軸方向の線膨張係数が−1×10−6〜70×10−6/Kのステッチ糸である。なお、本発明において線膨張係数は、−50〜70℃の温度範囲で測定された線膨張係数である。本発明において、前記線膨張係数は、5×10−6〜50×10−6/Kであることが好ましく、10×10−6〜30×10−6/Kであることがより好ましい。また、繊維強化複合材料とする際に組み合わせるマトリクス樹脂の線膨張係数(CTEm(×10−6/K))以下であることが好ましく、ステッチ糸の線膨張係数を、CTEm(×10−6/K)〜(CTEm−30)(×10−6/K)の範囲とすることが好ましい。また、ステッチ糸の線膨張係数は、強化繊維シートに用いる強化繊維の繊維方向の線膨張係数(CTEf(×10−6/K))以上であることも好ましく、CTEf(×10−6/K)〜(CTEf+30)(×10−6/K)の範囲とすることが好ましい。
本発明において用いる強化繊維シートは、炭素繊維、ガラス繊維、アラミド繊維、ボロン繊維、金属繊維等の通常の繊維強化材に用いる材料が使用できる。中でも炭素繊維が好ましい。また、本発明で用いる強化繊維としては、繊維方向の線膨張係数(CTEf)が−10×10−6〜10×10−6/Kの範囲にある強化繊維を用いることが好ましい。
本発明の強化繊維ステッチ基材を用いて繊維強化複合材料を成型する場合には、強化繊維ステッチ基材をそのまま用いることもできるが、取扱い性、作業性の観点から強化繊維ステッチ基材を積重して予備成形したプリフォーム材を用いることが好ましい。
本発明の繊維強化複合材料は、本発明の強化繊維ステッチ基材と、マトリクス樹脂組成物とを含んで成る。繊維強化複合材料は、本発明の強化繊維ステッチ基材に、マトリクス樹脂組成物を含侵させ、ステッチ基材とマトリクス樹脂組成物が複合化した状態で成形させることにより作製される。繊維強化複合材料の作製方法としては、特に制限はなく、強化繊維基材にあらかじめマトリクス樹脂組成物を含侵させたプリプレグを成形してもよく、レジントランスファー成形法(RTM法)や、レジンフィルムインフュージョン成形法(RFI法)等により成形と同時に強化繊維基材とマトリクス樹脂組成物とを複合化しても良い。本発明の強化繊維ステッチ基材は、RTM法やRFI法による成形方法により好ましく用いることができる。マトリクス樹脂の線膨張係数(CTEm)としては、40×10−6〜70×10−6/Kが好ましい。
[ステッチ糸]
・ステッチ糸1:旭化成株式会社製 銅アンモニアレーヨン繊維(セルロース繊維) ベンベルグ(登録商標)33T24 繊度:33dTex 単糸数:24本 線膨張係数:12×10−6/K
・ステッチ糸2:EMS−CHEMIE社製 ポリアミド繊維 Grilon(登録商標) K−203 33T8 繊度:33dTex 単糸数:8本 線膨張係数:30×10−6/K
・ステッチ糸3:EMS−CHEMIE社製 ポリアミド繊維 Grilon(登録商標) K−178 33T6 繊度:33dTex 単糸数:6本 線膨張係数:70×10−6/K
・ステッチ糸4:KBセーレン株式会社製 ポリエステル繊維 33T−12−SOD0 繊度:33dTex 単糸数:12本 線膨張係数:100×10−6/K
・ステッチ糸5:旭化成株式会社製 銅アンモニアレーヨン繊維(セルロース繊維) ベンベルグ(登録商標)44T24 繊度:44dTex 単糸数:24本 線膨張係数:12×10−6/K
・ステッチ糸6:旭化成株式会社製 銅アンモニアレーヨン繊維(セルロース繊維) ベンベルグ(登録商標)56T30 繊度:56dTex 単糸数:30本 線膨張係数:12×10−6/K
・不織布1:ポリアミド12 平均繊維径:20μm 目付:6g/m2 融点:170℃
・不織布2:ポリアミド612 平均繊維径:20μm 目付:6g/m2 融点:200℃
強化繊維として、炭素繊維束“テナックス(登録商標)”HTS40−12K (帝人(株)製、引張強度4.2GPa、引張弾性率240GPa、線膨張係数:−0.5×10−6/K)を用いた。
炭素繊維複合材料のマトリクス樹脂として、アミン硬化型エポキシ樹脂を利用した。その組成は以下の通りである。また、硬化物の線膨張係数は、55×10−6/Kであった。
(エポキシ樹脂)
・テトラグリシジル−4,4’−ジアミノジフェニルメタン (ハンツマン・ジャパン株式会社製 Araldite(登録商標) MY721) 20質量部
・トリグリシジル−p−アミノフェノール (ハンツマン・ジャパン株式会社製 Araldite(登録商標) MY0510) 30質量部
・トリグリシジル−m−アミノフェノール (ハンツマン・ジャパン株式会社製 Araldite(登録商標) MY0610) 30質量部
・ビスフェノールF−ジグリシジルエーテル型エポキシ樹脂 (ハンツマン・ジャパン株式会社製 Araldite(登録商標) PY306) 20質量部
(硬化剤)
・4,4’−ジアミノ−3,3’−ジイソプロピル−5,5’−ジメチルジフェニルメタン (ロンザジャパン株式会社製 Lonzacure(登録商標)M−MIPA) 67質量部
(1)繊維の繊度
得られた繊維を、検尺機を用いて100m巻き取り、その質量を測定した。得られた質量に100を乗じて10000mあたりの質量を算出し、当該値を繊度(dtex)とした。
繊維試料に張力がかからないようにして180℃で2時間加熱し冷却した後、熱機械分析装置(TA Instruments社製 型式:TMA Q400)により、線軸方向の線膨張係数を測定した。
[測定条件]
昇温開始温度 :−60℃
測定温度範囲 :−50〜70℃
昇温終了温度 :100℃
昇温速度 :5℃/分
荷重 :0.0001N
不織布3mg、および上記の液状熱硬化性樹脂組成物におけるエポキシ樹脂3mgをアルミパンに量り取りサンプルとした。DSC(NETZSCH製 DSC3500 Sirius)により、溶融吸熱ピークとベースラインの各接線の交点をオンセット融点として測定した。
[測定条件]
測定温度範囲 :室温〜250℃
昇温速度 :5℃/分
冷熱衝撃試験機(エスペック株式会社製 TSA−73EH−W)を用い、繊維強化複合材料に1000回の冷熱サイクルを与えた。冷熱サイクルの1サイクルは、15分間−55℃の平坦域、それに続く70℃の温度に達する15分間の温度変化域、それに続く15分間70℃の平坦域、それに続く−55℃の温度に戻る15分間の温度変化域から成るよう設定し、かかるサイクルを1000回繰り返した。
前記冷熱衝撃試験後の繊維強化複合材料試験片の内部における断面の亀裂数を顕微鏡観察により計測した。顕微鏡として株式会社キーエンス製 VHX−5000を用い、200倍拡大にて観察を行った。具体的には、冷熱衝撃試験後の試験片(幅80mm*長さ50mm*厚さ5mm)を幅40mm*長さ25mmの4等分に切断し、厚み方向の切断面を鏡面研磨し、長辺及び短辺それぞれを観察面とした。顕微鏡観察の微小亀裂の観察範囲は50mm2以上とし、計測された亀裂数を積層数と観察面の幅で割ることでクラック密度の値を算出することができる。クラック密度の単位は個/(cm・ply)である。長辺及び短辺の観察から得られたクラック密度の値は平均化し、最終的なクラック密度とした。
ステッチ糸として、線膨張係数が12×10−6/Kのステッチ糸1を用いた。有機溶剤によりステッチ糸を洗浄し、ステッチ糸の表面に付着している繊維用油剤を除去した。ステッチ糸の洗浄は、有機溶剤としてエタノールとベンゼンの混合液を用い、ソックスレー抽出器を用いて12時間の循環洗浄により行った。洗浄後のステッチ糸は真空乾燥機で12時間の乾燥処理を行った。
ステッチ糸として、ステッチ糸1に変えて、線膨張係数が30×10−6/Kであるステッチ糸2を用いた以外は、実施例1と同様にして、強化繊維ステッチ基材及び炭素繊維複合材料を得た。得られた炭素繊維強化複合材料を用いてクラック密度を測定した。その結果、マイクロクラックはほとんど発生しておらず、クラック密度は、0.16個/(cm・ply)ととても低いものであった。
ステッチ糸として、ステッチ糸1に変えて、線膨張係数が70×10−6/Kであるステッチ糸3を用いた以外は、実施例1と同様にして、強化繊維ステッチ基材及び炭素繊維複合材料を得た。得られた炭素繊維強化複合材料を用いてクラック密度を測定した。その結果、マイクロクラックは僅かに発生し、クラック密度は、0.24個/(cm・ply)と低いものであった。
ステッチ糸として、ステッチ糸1に変えて、線膨張係数が100×10−6/Kであるステッチ糸4を用いた以外は、実施例1と同様にして、強化繊維ステッチ基材及び繊維強化複合材料を得た。得られた繊維強化複合材料を用いてクラック密度を測定した。その結果、マイクロクラックの発生が顕著に確認され、クラック密度は、0.74個/(cm・ply)と高いものであった。
強化繊維シートの各層間に不織布1を配置した以外は実施例1と同様にして、強化繊維ステッチ基材及び炭素繊維複合材料を得た。得られた炭素繊維強化複合材料を用いてクラック密度を測定した。その結果、マイクロクラックはほとんど発生しておらず、クラック密度は、0.03個/(cm・ply)ととても低いものであった。ステッチ糸1と不織布1を用いることで、マイクロクラックの形成が抑制されることが確認できた。
強化繊維シートの各層間に不織布2を配置した以外は実施例1と同様にして、強化繊維ステッチ基材及び炭素繊維複合材料を得た。得られた炭素繊維強化複合材料を用いてクラック密度を測定した。その結果、マイクロクラックの発生は僅かに発生し、クラック密度は、0.28個/(cm・ply)と低いものであった。
ステッチ糸として、ステッチ糸1に変えてステッチ糸5を用い、かつ強化繊維シートの各層間に不織布1を配置した以外は、実施例1と同様にして、強化繊維ステッチ基材及び炭素繊維複合材料を得た。得られた炭素繊維強化複合材料を用いてクラック密度を測定した。その結果、マイクロクラックは僅かに発生し、クラック密度は、0.14個/(cm・ply)と低いものであった。
ステッチ糸として、ステッチ糸1に変えてステッチ糸6を用い、かつ強化繊維シートの各層間に不織布1を配置した以外は、実施例1と同様にして、強化繊維ステッチ基材及び炭素繊維複合材料を得た。得られた炭素繊維強化複合材料を用いてクラック密度を測定した。その結果、マイクロクラックは僅かに発生し、クラック密度は、0.25個/(cm・ply)と低いものであった。
Claims (10)
- 強化繊維から成る強化繊維シートが、ステッチ糸によりステッチされて成る強化繊維ステッチ基材であって、
前記ステッチ糸が、180℃で2時間加熱し冷却した後の繊維軸方向の線膨張係数が−1×10−6〜70×10−6/Kのステッチ糸であることを特徴とする強化繊維ステッチ基材。 - 前記強化繊維シートが、一方向に引き揃えられた強化繊維から成る強化繊維シートである請求項1に記載の強化繊維ステッチ基材。
- 前記強化繊維シートが、表面に樹脂材料が配置された強化繊維シートである請求項1または2に記載の強化繊維ステッチ基材。
- 前記強化繊維シートが、一方向に引き揃えられた強化繊維からなる強化繊維シートが、繊維軸方向を互いに変えて順次積層された強化繊維シートである請求項1〜3の何れか1項に記載の強化繊維ステッチ基材。
- 前記ステッチ糸が、水酸基、アミノ基、フェノール基、ラクタム基およびエポキシ基からなる群から選ばれる少なくとも一つの極性基を有する有機化合物が付着したステッチ糸である請求項1〜4の何れか1項に記載の強化繊維ステッチ基材。
- 強化繊維から成る強化繊維シートを、180℃で2時間加熱し冷却した後の繊維軸方向の線膨張係数が−1×10−6〜70×10−6/Kのステッチ糸でステッチすることを特徴とする強化繊維ステッチ基材の製造方法。
- 請求項1〜5の何れか1項に記載の強化繊維ステッチ基材と、前記強化繊維ステッチ基材100質量部に対して1〜20質量部のバインダー樹脂と、を含むプリフォーム材。
- 請求項1〜5の何れか1項に記載の強化繊維ステッチ基材と、バインダー樹脂と、を加圧下で加熱するプリフォーム材の製造方法。
- 請求項1〜5の何れか1項に記載の強化繊維ステッチ基材と、前記強化繊維ステッチ基材100質量部に対して20〜60質量部のマトリクス樹脂組成物と、を含む繊維強化複合材料。
- 請求項1〜5の何れか1項に記載の強化繊維ステッチ基材に、マトリクス樹脂を含侵させる繊維強化複合材料の製造方法。
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PCT/JP2021/006530 WO2021172246A1 (ja) | 2020-02-28 | 2021-02-22 | 強化繊維ステッチ基材、プリフォーム材、及び繊維強化複合材料、並びにこれらの製造方法 |
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JP2012511450A (ja) * | 2008-12-09 | 2012-05-24 | ヘクセル ランフォルセマン | 複合部品の微小亀裂を制限することを目的とした新規な中間材料 |
JP2013522486A (ja) * | 2010-03-18 | 2013-06-13 | トウホウ テナックス ユーロップ ゲゼルシャフト ミット ベシュレンクテル ハフツング | 縫合した多軸の布帛 |
WO2017104481A1 (ja) * | 2015-12-14 | 2017-06-22 | 三菱レイヨン株式会社 | 多軸挿入編物基材の製造方法、多軸挿入編物基材、及び繊維強化複合材料 |
WO2018083734A1 (ja) * | 2016-11-01 | 2018-05-11 | 日産自動車株式会社 | 複合材料用強化基材、複合材料および複合材料用強化基材の製造方法 |
WO2020031834A1 (ja) * | 2018-08-07 | 2020-02-13 | 東レ株式会社 | 多軸織物樹脂基材およびその製造方法 |
JP2021055202A (ja) * | 2019-09-29 | 2021-04-08 | 帝人株式会社 | 強化繊維ステッチ基材、プリフォーム材、及び繊維強化複合材料、並びにこれらの製造方法 |
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JP2012511450A (ja) * | 2008-12-09 | 2012-05-24 | ヘクセル ランフォルセマン | 複合部品の微小亀裂を制限することを目的とした新規な中間材料 |
JP2013522486A (ja) * | 2010-03-18 | 2013-06-13 | トウホウ テナックス ユーロップ ゲゼルシャフト ミット ベシュレンクテル ハフツング | 縫合した多軸の布帛 |
WO2017104481A1 (ja) * | 2015-12-14 | 2017-06-22 | 三菱レイヨン株式会社 | 多軸挿入編物基材の製造方法、多軸挿入編物基材、及び繊維強化複合材料 |
WO2018083734A1 (ja) * | 2016-11-01 | 2018-05-11 | 日産自動車株式会社 | 複合材料用強化基材、複合材料および複合材料用強化基材の製造方法 |
WO2020031834A1 (ja) * | 2018-08-07 | 2020-02-13 | 東レ株式会社 | 多軸織物樹脂基材およびその製造方法 |
JP2021055202A (ja) * | 2019-09-29 | 2021-04-08 | 帝人株式会社 | 強化繊維ステッチ基材、プリフォーム材、及び繊維強化複合材料、並びにこれらの製造方法 |
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JPWO2021172246A1 (ja) | 2021-09-02 |
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AU2021228414A1 (en) | 2022-09-08 |
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