WO2023281180A1 - Nappe electroconductrice tridimensionnelle tricotee pour constituer une paroi resistant a la foudre - Google Patents
Nappe electroconductrice tridimensionnelle tricotee pour constituer une paroi resistant a la foudre Download PDFInfo
- Publication number
- WO2023281180A1 WO2023281180A1 PCT/FR2022/051221 FR2022051221W WO2023281180A1 WO 2023281180 A1 WO2023281180 A1 WO 2023281180A1 FR 2022051221 W FR2022051221 W FR 2022051221W WO 2023281180 A1 WO2023281180 A1 WO 2023281180A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrically conductive
- knit
- volume
- composite material
- yarn
- Prior art date
Links
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 26
- 239000002131 composite material Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 25
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 24
- 239000004634 thermosetting polymer Substances 0.000 claims abstract description 14
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 25
- 229910052802 copper Inorganic materials 0.000 claims description 22
- 239000010949 copper Substances 0.000 claims description 22
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 239000002861 polymer material Substances 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 239000004760 aramid Substances 0.000 claims description 6
- 229920003235 aromatic polyamide Polymers 0.000 claims description 6
- 229910000906 Bronze Inorganic materials 0.000 claims description 5
- 239000010974 bronze Substances 0.000 claims description 5
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 239000012783 reinforcing fiber Substances 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 4
- 239000012815 thermoplastic material Substances 0.000 claims description 4
- 229910001369 Brass Inorganic materials 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000010951 brass Substances 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 239000004744 fabric Substances 0.000 abstract description 22
- 238000009940 knitting Methods 0.000 description 9
- 239000000945 filler Substances 0.000 description 7
- -1 polypropylene Polymers 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000009826 distribution Methods 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004697 Polyetherimide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920001652 poly(etherketoneketone) Polymers 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920001601 polyetherimide Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000271 Kevlar® Polymers 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 239000004643 cyanate ester Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- 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
- B29C70/003—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised by the matrix material, e.g. material composition or physical properties
-
- 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
- B29C70/003—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised by the matrix material, e.g. material composition or physical properties
- B29C70/0035—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised by the matrix material, e.g. material composition or physical properties comprising two or more matrix materials
-
- 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
- B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
- B29C70/083—Combinations of continuous fibres or fibrous profiled structures oriented in one direction and reinforcements forming a two dimensional structure, e.g. mats
-
- 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
- B29C70/205—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 the structure being shaped to form a three-dimensional configuration
-
- 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
- B29C70/22—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
-
- 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
- B29C70/22—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
- B29C70/222—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 being shaped to form a three dimensional configuration
-
- 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
- B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
- B29C70/882—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding
- B29C70/885—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding with incorporated metallic wires, nets, films or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D45/00—Aircraft indicators or protectors not otherwise provided for
- B64D45/02—Lightning protectors; Static dischargers
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/10—Patterned fabrics or articles
- D04B1/12—Patterned fabrics or articles characterised by thread material
- D04B1/123—Patterned fabrics or articles characterised by thread material with laid-in unlooped yarn, e.g. fleece fabrics
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0809—Fabrics
- B29K2105/0836—Knitted fabrics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
- B29K2305/08—Transition metals
- B29K2305/10—Copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
- B29K2995/0005—Conductive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/776—Walls, e.g. building panels
-
- 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
- D10B2101/00—Inorganic fibres
- D10B2101/20—Metallic fibres
-
- 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
- D10B2401/00—Physical properties
- D10B2401/16—Physical properties antistatic; conductive
-
- 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
- D10B2403/00—Details of fabric structure established in the fabric forming process
- D10B2403/02—Cross-sectional features
- D10B2403/024—Fabric incorporating additional compounds
- D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
- D10B2403/02411—Fabric incorporating additional compounds enhancing mechanical properties with a single array of unbent yarn, e.g. unidirectional reinforcement fabrics
-
- 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
-
- 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
- D10B2505/12—Vehicles
-
- 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
- D10B2505/20—Industrial for civil engineering, e.g. geotextiles
Definitions
- the present invention relates to the walls / surfaces that must withstand lightning, to which they are likely to be exposed in a particular way. It therefore relates, for example, in this respect, to aircraft cabin parts.
- This anti-lightning function is usually dealt with in carbon/epoxy composites in several different ways, not mutually exclusive, but possibly cumulative. Although it is a good conductor, carbon is damaged by the passage of lightning, which lowers the performance, particularly the mechanical performance of the composite.
- a first way consists of adding a surface layer of weaving commonly referred to as "Ghent” fabric (copper / aluminum / bronze) (called in English “copper mesh” for example) generally of very low weight ( 50 - 300, in particular approximately 80 g/m 2 ), in expanded metal, in pierced foil (available in particular from the 3M Company), intended to distribute the electrical charges evenly over the entire surface.
- a second way consists in the addition of a solid foil of width between 1 and 15 cm and thickness between 0.05 and 1 mm, which can have the function of collecting the charges of the copper fabric and of evacuate to the other rooms, bound for the rear of the aircraft.
- a conductive layer is not possible, for example when the part must be radio-transparent as in the case of radomes, we use a diverter which can take the form of a tinsel. This has a lightning rod function, directly attracting lightning and evacuating the charges.
- the foil is positioned at the junction between two parts, constituting a screwed equipotential strip, the screw performing electrical conduction between the two parts.
- a third way consists in using composite materials with electrically conductive constituents in one of the two forms mentioned above, in thermosetting matrices.
- fabrics pre-impregnated with polymeric material are particularly common, in particular fabrics pre-impregnated with polymeric material (or “prepreg”). These fabrics are traditionally formed of weft threads and warp threads arranged perpendicularly, and conventionally have a planar structure.
- the fabrics are generally cut out and placed in a mold whose general shape corresponds to that of the part to be produced, the polymeric material (or resin) then being injected and polymerized in the mold in order in particular to give a rigid part.
- the draping of woven reinforcements on a mold is a long and delicate operation.
- thermosetting matrix in an electrically conductive composite has the disadvantage that the composite tends to absorb thermal energy, to degrade and to pierce.
- the aim of the invention was to provide an anti-lightning or lightning-resistant part, the surface of which can be of complex three-dimensional geometry, of manufacture and implementation easily industrializable, not having the drawbacks described above.
- the subject of the invention is a three-dimensional electrically conductive sheet consisting of an electrically conductive knit able to distribute the electrical charges homogeneously over its entire surface, characterized in that the knit comprises at least one continuous electrically conductive metallic yarn.
- the electrically conductive knit is obtained from at least one continuous yarn of electrically conductive material (which may be mono- or multi-filament(s) and/or formed from discontinuous fibers bonded for example by twisting or wrapping, or any other textile process ).
- the knitted fabric comprises one or more knitted or knitting yarns which may consist, from the point of view of their shape, of knit (loop) yarn(s), of filler yarn(s) (ripple), in float yarn(s) but not in weft yarn(s) (unidirectional).
- Different knitting techniques in particular circular or rectilinear make it possible in particular to obtain knits forming a unitary piece, in 2D or in 3D, without seams.
- thermoplastic polymeric material in the form of yarns or fibers mixed with the electroconductive yarns or fibers and to obtain a preform (intermediate/temporary form before the final) called "dry", containing both the material (s) electrically conductive (s) and the matrix.
- the knitted web of the invention is therefore advantageously made in the shape of the final piece, including three-dimensional complex.
- the invention provides ease of implementation and continuity of the electrically conductive fibers improving the electrical conductivity and the homogeneity of the distribution of electrical charges.
- the knit comprises at least one electrically conductive continuous yarn, in particular one to four yarns, for example four copper yarns 0.1 mm in diameter.
- the at least one electrically conductive wire is then metallic, such as copper, bronze, aluminum, brass, titanium, silver, gold or alloys thereof.
- the knit then comprises a single continuous metal wire such as copper 0.01 to 1 mm in diameter.
- the electrically conductive knit comprises at least one unidirectional electrically conductive UD yarn capable of displacing--evacuating the electrical charges in the direction of the UD yarn.
- Each UD yarn is a weft yarn.
- the electrically conductive UD wire(s) is (are) then metallic, such as copper, bronze or aluminum.
- the metallic UD wires consist of a bundle of twelve copper wires of 0.02 to 2 mm in diameter, or have an electrical conductivity of the same order as that of such a bundle. These UD wires therefore have the capacity to evacuate a large quantity of electrical charges corresponding to a lightning strike, possibly repeated.
- the electrically conductive knit comprises at least two different electrically conductive materials.
- the electrically conductive knit comprises 0 to 40% by volume of one or more reinforcing yarn(s) such as carbon fibre, glass or aramid.
- This or these reinforcing threads may for example be present in the form of one or more knit, filler and/or floated threads, and/or one or more weft threads added (s) in knitting in the form of unidirectional yarn(s).
- Another object of the invention consists of a composite material characterized in that it comprises a sheet as described previously, and 40 to 95% by volume of thermoplastic and/or thermosetting polymer material.
- the material composite (final product) is obtained from several constituents described in more detail below, among which a web described above comprising an optional addition of 0 to 60% by volume of thermoplastic and/or thermosetting polymer material, preferably exclusively thermoplastic (intermediate product).
- the polymer material can be exclusively thermoplastic or exclusively thermosetting.
- the thermoplastic polymer material may be integrated into the metallic knitted structure of the web in the form of one or more mesh, filler and/or float yarn(s) and/or one or more ) of added weft(s) in the knitting in the form of unidirectional yarn(s), for example.
- thermoplastic polymers examples include polycarbonate (PC), polyetherimide (PEI), polypropylene (PP), polyamide (PA), poly(methyl methacrylate) (PMMA), poly(ethylene terephthalate) (PET) , poly(phenylene sulfide) (PPS), polyetheretherketone (PEEK), polyetherketoneketone (PEKK), alone or as mixtures or copolymers of several of them.
- the thermosetting polymer material can be integrated into the electrically conductive knit of the web by subsequent impregnation.
- thermosetting polymer material mention may be made of polyurethane (PU), epoxy resin, cyanate ester, phenolic resin, unsaturated polyester.
- the polymer material advantageously comprises 100 to 5% by volume of thermoplastic material and 0 to 95% by volume of thermosetting resin.
- the metallic knitted structure has a continuity of the fibers improving the electrical conductivity, the distribution and the evacuation of the charges, it heats up less under the effect of lightning, and it is possible to constitute the polymer matrix exclusively of thermoplastic material, in the absence of thermosetting resin.
- An absence of thermoplastic material is possible, as already specified, but is not preferred. Indeed, a minor proportion of thermoplastic polymer in a predominantly thermosetting polymer material makes the polymer material weldable.
- the thermosetting material is less likely to be pierced with regard to reduced heating under the effect of lightning mentioned above.
- thermoplastic nature with a relatively high glass transition temperature Tg is sought, by using a thermoplastic polymer with a glass transition temperature greater than that of the thermosetting resin, in particular a Tg greater than 120°C, in order to guarantee heat resistance of the polymer matrix.
- thermosetting polymer material An absence of thermosetting polymer material is possible. If thermosetting polymer is present, its proportion by volume is preferably greater than that of the thermoplastic polymer material.
- the composite material of the invention is obtained by combining reinforcing fibers with a knitted electrically conductive sheet described above.
- the reinforcing fibers can thus be combined in the form of woven yarns, mats, optionally themselves previously combined with thermoplastic polymer materials, and/or preimpregnated with thermosetting polymer materials.
- the composite material is obtained by superimposing a knitted electrically conductive sheet according to the invention, and one or more knitted reinforcing thread(s).
- Each knit of reinforcing yarn(s) can also be previously associated with thermoplastic polymer materials, and/or preimpregnated with thermosetting polymer materials.
- the invention also relates to the use of a three-dimensional electrically conductive sheet or of a composite material described above to constitute the lightning-resistant wall of a land, water or air vehicle, or of a building, in particular a part of a train body, aircraft cabin or space vehicle.
- a composite is produced by adding side by side a “Ghent” copper fabric (called “copper mesh”) with a weight equal to 80 g/m 2 , intended to distribute the electrical charges evenly over the entire the surface, and a copper foil 10 cm wide and a few tenths of a mm thick, which has the function of collecting the charges from the copper fabric and evacuating them towards the rear of the aircraft, then by superimposing on the assembly thus obtained, part of the surface of which is made up of Ghent copper fabric and the other part of the surface is made up of copper foil, a layer of woven carbon fibers preimpregnated with resin epoxy. This material is very difficult to drape, all the more so in complex three-dimensional form. This material was pierced and delaminated at the first lightning strike.
- An electrically conductive knit is produced with one or more mesh, filler and/or float yarn(s) each consisting of a copper wire 0.1 mm in diameter and a thermoplastic polymer material integrated into the metallic knitted structure in the form of one or more knit, filler and/or float yarn(s) and/or one or more weft yarn(s) added to the knit in the form of yarn(s) unidirectional(s).
- This knitting is directly made to any desired three-dimensional shape, regardless of its complexity. It presents a continuity of its conductive threads/fibers.
- a three-dimensional electrically conductive knit is superimposed one or more reinforcing ply(ies) of the same three-dimensional geometry, and consisting of a fabric, a mat or a knit of reinforcing fibers such as carbon, glass or aramid, combined with a thermoplastic polymer material.
- a first example of a reinforcing knit is a Kevlar® (aramid) and thermoplastic knit, that is to say having one or more mesh, filler and/or float yarn(s) consisting of aramid on the one hand, thermoplastic on the other hand, in which are inserted several unidirectional carbon yarns UD and several unidirectional thermoplastic yarns UD as weft yarns.
- a second example of a reinforcing knit is a knit of glass and thermoplastic.
- a third example of a reinforcing knit is a carbon and thermoplastic knit.
- the composite material can be obtained in any desired three-dimensional complex shape, in one piece, with fiber continuity, after curing at a temperature above the Tg of the thermoplastic, and cooling.
- Example 1 The electrically conductive knit of Example 1 is modified by inserting therein twelve parallel unidirectional UD copper threads 0.2 mm in diameter as the weft threads of the knit. On this three-dimensional electrically conductive knit, the same reinforcing fabrics, mats and knits as in Example 1 are superimposed. Examples 3 and 4
- Examples 1 and 2 are reproduced, with the difference that the reinforcing fabrics, mats and knits are preimpregnated with liquid thermosetting resin in an amount such that the polymer material of the composite material constitutes at least 40% by volume, being distributed in a major part of thermosetting polymer and a minor part of thermoplastic polymer.
- Examples 1 and 2 are reproduced, but without using one or more reinforcing plies. Instead of these, the reinforcing function is integrated into the copper knit, by means of one or more mesh, filler and/or float yarn(s) and/or one or more unidirectional UD yarns as weft yarns, made of reinforcing fibers such as carbon, glass or aramid.
- Examples 5 and 6 are reproduced by impregnating the reinforced copper knit with liquid thermosetting resin in an amount such that the polymer material of the composite material constitutes at least 40% by volume, being divided into a major part of thermosetting polymer and a minor part of thermoplastic polymer.
- the function of uniform charge distribution over the entire surface by the copper knit is very effective: the paint was burned evenly despite at least four lightning strikes without destroying the copper knit, which still conducts the current evenly electric even after these impacts.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Textile Engineering (AREA)
- Mathematical Physics (AREA)
- Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Knitting Of Fabric (AREA)
- Laminated Bodies (AREA)
- Reinforced Plastic Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Woven Fabrics (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3223958A CA3223958A1 (fr) | 2021-07-06 | 2022-06-22 | Nappe electroconductrice tridimensionnelle tricotee pour constituer une paroi resistant a la foudre |
CN202280047816.2A CN117615901A (zh) | 2021-07-06 | 2022-06-22 | 用作抗雷电墙的针织三维导电垫 |
KR1020247000207A KR20240029021A (ko) | 2021-07-06 | 2022-06-22 | 번개 저항성 벽으로 사용하기 위한 편직 3차원 전기전도성 매트 |
MX2024000400A MX2024000400A (es) | 2021-07-06 | 2022-06-22 | Estera electroconductora tridimensional de punto para uso como pared resistente a los rayos. |
JP2024500260A JP2024526648A (ja) | 2021-07-06 | 2022-06-22 | 耐雷壁として用いられる編物立体導電性マット |
EP22744266.2A EP4366937A1 (fr) | 2021-07-06 | 2022-06-22 | Nappe electroconductrice tridimensionnelle tricotee pour constituer une paroi resistant a la foudre |
IL309672A IL309672A (en) | 2021-07-06 | 2022-06-22 | Knitted three-dimensional electroconductive mat for use as a lightning-resistant wall |
US18/576,683 US20240308154A1 (en) | 2021-07-06 | 2022-06-22 | Knitted three-dimensional electroconductive mat for use as a lightning-resistant wall |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR2107293 | 2021-07-06 | ||
FR2107293A FR3124973A1 (fr) | 2021-07-06 | 2021-07-06 | Nappe électroconductrice tridimensionnelle tricotée pour constituer une paroi résistant à la foudre |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023281180A1 true WO2023281180A1 (fr) | 2023-01-12 |
Family
ID=77711039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2022/051221 WO2023281180A1 (fr) | 2021-07-06 | 2022-06-22 | Nappe electroconductrice tridimensionnelle tricotee pour constituer une paroi resistant a la foudre |
Country Status (10)
Country | Link |
---|---|
US (1) | US20240308154A1 (fr) |
EP (1) | EP4366937A1 (fr) |
JP (1) | JP2024526648A (fr) |
KR (1) | KR20240029021A (fr) |
CN (1) | CN117615901A (fr) |
CA (1) | CA3223958A1 (fr) |
FR (1) | FR3124973A1 (fr) |
IL (1) | IL309672A (fr) |
MX (1) | MX2024000400A (fr) |
WO (1) | WO2023281180A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4755904A (en) | 1986-06-06 | 1988-07-05 | The Boeing Company | Lightning protection system for conductive composite material structure |
US20020182961A1 (en) * | 1999-12-15 | 2002-12-05 | Clercq Elsie De | Reinforced fabric |
DE202014009963U1 (de) * | 2014-12-16 | 2015-01-15 | Tec-Knit Creativcenter Für Technische Textilien Gmbh | Gewirk mit unidirektional verlaufenden Fasern |
US20200290296A1 (en) | 2019-03-11 | 2020-09-17 | Saint-Gobain Performance Plastics France | Preparation of a composite material comprising different functionality areas |
-
2021
- 2021-07-06 FR FR2107293A patent/FR3124973A1/fr active Pending
-
2022
- 2022-06-22 CA CA3223958A patent/CA3223958A1/fr active Pending
- 2022-06-22 CN CN202280047816.2A patent/CN117615901A/zh active Pending
- 2022-06-22 KR KR1020247000207A patent/KR20240029021A/ko unknown
- 2022-06-22 MX MX2024000400A patent/MX2024000400A/es unknown
- 2022-06-22 JP JP2024500260A patent/JP2024526648A/ja active Pending
- 2022-06-22 EP EP22744266.2A patent/EP4366937A1/fr active Pending
- 2022-06-22 IL IL309672A patent/IL309672A/en unknown
- 2022-06-22 WO PCT/FR2022/051221 patent/WO2023281180A1/fr active Application Filing
- 2022-06-22 US US18/576,683 patent/US20240308154A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4755904A (en) | 1986-06-06 | 1988-07-05 | The Boeing Company | Lightning protection system for conductive composite material structure |
US20020182961A1 (en) * | 1999-12-15 | 2002-12-05 | Clercq Elsie De | Reinforced fabric |
DE202014009963U1 (de) * | 2014-12-16 | 2015-01-15 | Tec-Knit Creativcenter Für Technische Textilien Gmbh | Gewirk mit unidirektional verlaufenden Fasern |
US20200290296A1 (en) | 2019-03-11 | 2020-09-17 | Saint-Gobain Performance Plastics France | Preparation of a composite material comprising different functionality areas |
Also Published As
Publication number | Publication date |
---|---|
CN117615901A (zh) | 2024-02-27 |
JP2024526648A (ja) | 2024-07-19 |
IL309672A (en) | 2024-02-01 |
MX2024000400A (es) | 2024-01-29 |
US20240308154A1 (en) | 2024-09-19 |
EP4366937A1 (fr) | 2024-05-15 |
FR3124973A1 (fr) | 2023-01-13 |
CA3223958A1 (fr) | 2023-01-12 |
KR20240029021A (ko) | 2024-03-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0270411B1 (fr) | Structure textile permettant la réalisation d'articles stratifiés composites par moulage par injection | |
EP2943330B1 (fr) | Pièce structurale en matériau composite renforcée | |
EP3024640B1 (fr) | Piece en materiau composite avec portion de conductivite thermique et electrique et procede de fabrication d'une telle piece | |
FR2949792A1 (fr) | Procede de fabrication d'un materiau fibreux pre-impregne de polymere thermoplastique et systeme de mise en oeuvre | |
EP3177454A1 (fr) | Procédé de fabrication d'une pièce renforcée comportant un matériau composite | |
WO2011098291A1 (fr) | Dispositif multicouche pour un moule a chauffage endogene et procede de fabrication dudit dispositif | |
EP3507085B1 (fr) | Préforme, pièce d'ossature et procédé de fabrication d'une telle préforme | |
FR2728395A1 (fr) | Element en materiau composite avec assemblage(s) de continuite electrique a travers l'element, son procede de fabrication et son utilisation en aeronautique | |
WO2023281180A1 (fr) | Nappe electroconductrice tridimensionnelle tricotee pour constituer une paroi resistant a la foudre | |
EP2715742B1 (fr) | Semi-produit sous la forme d'une bande conductrice intégrable dans un matériau composite et procéde de fabrication d'une telle bande | |
WO2007068847A1 (fr) | Complexe textile destine a etre utilise comme couche de renfort pour la fabrication de pieces composites, et procede de fabrication d'un tel complexe | |
CA2971066C (fr) | Procede de fabrication d'un panneau composite | |
WO2005072940A1 (fr) | Complexes de renforcement comportant des fils raidisseurs | |
EP3168353A1 (fr) | Non tisse | |
JP2004346190A (ja) | プリプレグ及び繊維強化樹脂複合材料 | |
FR3089854A1 (fr) | Procede de preparation d’un materiau composite sous forme de sandwich | |
FR3104061A1 (fr) | Matériau parafoudre et procédé pour fabriquer un composant composite fibreux | |
WO2022195208A1 (fr) | Preforme realisee par tricotage, produit composite incorporant une telle preforme et procedes de fabrication | |
WO2013139714A2 (fr) | Procédé pour la fabrication d'un cadre de hublot en matériau composite a renfort fibreux et hublot obtenu par un tel procédé | |
FR2919820A1 (fr) | Canal drainant pour composite | |
EP2961583A1 (fr) | Preparation d'un produit textile semi-fini destine a l'injection thermoplastique, et produit ainsi obtenu | |
FR2919519A1 (fr) | Noyau pour realiser un raidisseur dans un panneau composite |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22744266 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 3223958 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 309672 Country of ref document: IL |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202417000147 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280047816.2 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 2024500260 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: MX/A/2024/000400 Country of ref document: MX |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112024000082 Country of ref document: BR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2022744266 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2022744266 Country of ref document: EP Effective date: 20240206 |
|
ENP | Entry into the national phase |
Ref document number: 112024000082 Country of ref document: BR Kind code of ref document: A2 Effective date: 20240103 |