JP2021030478A - 繊維構造体及び繊維強化複合材 - Google Patents
繊維構造体及び繊維強化複合材 Download PDFInfo
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- 239000000835 fiber Substances 0.000 title claims abstract description 277
- 239000000463 material Substances 0.000 title claims abstract description 115
- 239000003733 fiber-reinforced composite Substances 0.000 title claims abstract description 37
- 239000010410 layer Substances 0.000 claims description 41
- 239000011159 matrix material Substances 0.000 claims description 28
- 239000012783 reinforcing fiber Substances 0.000 claims description 12
- 238000010030 laminating Methods 0.000 claims description 8
- 239000011247 coating layer Substances 0.000 claims description 6
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- 239000011347 resin Substances 0.000 description 21
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- 230000003014 reinforcing effect Effects 0.000 description 9
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- 239000011229 interlayer Substances 0.000 description 7
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- 239000004917 carbon fiber Substances 0.000 description 6
- 239000004744 fabric Substances 0.000 description 6
- 239000004745 nonwoven fabric Substances 0.000 description 6
- 239000012763 reinforcing filler Substances 0.000 description 6
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- 238000004519 manufacturing process Methods 0.000 description 5
- 239000012779 reinforcing material Substances 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- ICXAPFWGVRTEKV-UHFFFAOYSA-N 2-[4-(1,3-benzoxazol-2-yl)phenyl]-1,3-benzoxazole Chemical compound C1=CC=C2OC(C3=CC=C(C=C3)C=3OC4=CC=CC=C4N=3)=NC2=C1 ICXAPFWGVRTEKV-UHFFFAOYSA-N 0.000 description 3
- 229920002972 Acrylic fiber Polymers 0.000 description 3
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- 238000005470 impregnation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0003—Producing profiled members, e.g. beams
- B29D99/0005—Producing noodles, i.e. composite gap fillers, characterised by their construction
-
- 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
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
- B29C70/14—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat oriented
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0003—Producing profiled members, e.g. beams
-
- 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
- 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
-
- 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
- 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
- B32B5/28—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 impregnated with or embedded in a plastic substance
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/38—Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/02—Reinforcing materials; Prepregs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Reinforced Plastic Materials (AREA)
- Woven Fabrics (AREA)
- Laminated Bodies (AREA)
Abstract
Description
図1に示すように、繊維強化複合材10は、断面T形状の繊維構造体11にマトリックス材料の一例であるマトリックス樹脂Maを含浸、硬化させて形成されている。繊維構造体11は、矩形板状の本体部11aと、本体部11aに対し直交するフランジ11bとを有する。繊維構造体11は、断面T形状の第1繊維基材12と、平板状の第2繊維基材20と、第1繊維基材12と第2繊維基材20との間に画成される隙間Sに充填される隙間充填部材30とを有する。
まず、断面T形状の第1繊維基材12及び平板状の第2繊維基材20を製造する。次に、図5に示すように、第1繊維基材12の分岐部18に複数本の隙間充填部材30を載置する。このとき、後に形成される隙間Sの繊維体積含有率Vfが所望する値となるように、載置する隙間充填部材30の本数を調整する。そして、分岐部18には隙間充填部材30を載せるだけで、後に、繊維構造体11の隙間Sとなる部分への処理が完了する。つまり、繊維強化複合材10における隙間Sの周囲を補強するのに必要な作業が完了する。
(1)繊維構造体11の隙間Sに充填された隙間充填部材30は、非連続繊維Hの繊維束であることから紐状である。このため、例えば、不織布を分岐部18に配置する場合と比べると、扱いやすく、しかも、不織布のように分岐部18の形状に整形する必要もないため、隙間充填部材30を分岐部18に配置する作業が簡単である。
(11)隙間充填部材30は非連続繊維Hの繊維束であり、嵩高である。このため、分岐部18に隙間充填部材30を配置するとき、隙間充填部材30を積み重ねても、隙間充填部材30同士の間、ひいては各隙間充填部材30の非連続繊維H同士の間が開いた状態を確保できる。このため、隙間充填部材30においてもマトリックス樹脂Maを含浸させることができる。
○ 図7に示すように、隙間充填部材40は、芯糸41と、芯糸41を覆う被覆層42と、被覆層42に捲回されたカバーリング糸43と、を有する構成であってもよい。芯糸41は、連続繊維を撚って形成された撚糸である。被覆層42は、非連続繊維Hからなる撚糸である。
○ 隙間充填部材30は、非連続繊維Hの無撚糸であってもよい。
○ マトリックス樹脂Maとして熱硬化性樹脂を用いたが、その他の種類の樹脂を用いてもよい。
○ 第1繊維基材12及び第2繊維基材20において、積層する繊維層の数は任意に変更してもよい。
Claims (5)
- 繊維構造体にマトリックス材料を含浸させて形成される繊維強化複合材の前記繊維構造体であって、
強化繊維の繊維層を複数積層した本体部を有するとともに、前記本体部を前記繊維層の積層方向に沿って二股状に分岐させた分岐部を有する第1繊維基材と、
前記分岐部を覆って前記第1繊維基材に一体化される第2繊維基材を備え、
前記分岐部と前記第2繊維基材とで画成される隙間に充填される隙間充填部材を備え、
前記隙間充填部材は、非連続繊維の繊維束であることを特徴とする繊維構造体。 - 前記第2繊維基材は、強化繊維の繊維層を複数積層して有し、前記第2繊維基材における前記繊維層の積層方向と前記本体部における前記繊維層の積層方向に直交する方向を奥行方向とすると、前記分岐部は前記奥行方向に沿って連続して延びており、前記隙間は前記繊維構造体の前記奥行方向の全体に亘り、前記隙間充填部材の軸方向への寸法は、前記奥行方向への前記隙間の寸法の60%以上である請求項1に記載の繊維構造体。
- 前記隙間の単位体積当たりの前記非連続繊維の量を示す繊維体積含有率は、前記本体部における単位体積当たりの前記強化繊維の量を示す繊維体積含有率以下である請求項1又は請求項2に記載の繊維構造体。
- 前記隙間充填部材は、当該隙間充填部材の軸方向全体に延びる連続繊維からなる芯糸と、前記芯糸を覆う非連続繊維からなる被覆層とを備える請求項1〜請求項3のうちいずれか一項に記載の繊維構造体。
- 繊維構造体にマトリックス材料を含浸させて構成される繊維強化複合材であって、前記繊維構造体は請求項1〜請求項4のうちいずれか一項に記載の繊維構造体である繊維強化複合材。
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JP2019149794A JP7322588B2 (ja) | 2019-08-19 | 2019-08-19 | 繊維構造体及び繊維強化複合材 |
PCT/JP2020/028417 WO2021033484A1 (ja) | 2019-08-19 | 2020-07-22 | 繊維構造体及び繊維強化複合材 |
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CN117416063B (zh) * | 2023-12-19 | 2024-03-05 | 浙江航引新材料科技有限公司 | 一种复合材料加强筋预制体及其制备方法 |
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JPS61274922A (ja) * | 1985-05-31 | 1986-12-05 | Toyoda Spinning & Weaving Co Ltd | 繊維強化樹脂構造体の製造方法 |
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JPS61274922A (ja) * | 1985-05-31 | 1986-12-05 | Toyoda Spinning & Weaving Co Ltd | 繊維強化樹脂構造体の製造方法 |
JPH07118979A (ja) * | 1993-10-25 | 1995-05-09 | Toray Ind Inc | 複合紡績糸およびその製造方法 |
JPH08165363A (ja) * | 1994-12-16 | 1996-06-25 | Mitsubishi Heavy Ind Ltd | 空隙部充填用繊維構造体 |
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