CN111070805A - Multilayer multidirectional flexible material with any fiber direction and consolidation method thereof - Google Patents
Multilayer multidirectional flexible material with any fiber direction and consolidation method thereof Download PDFInfo
- Publication number
- CN111070805A CN111070805A CN201911187152.6A CN201911187152A CN111070805A CN 111070805 A CN111070805 A CN 111070805A CN 201911187152 A CN201911187152 A CN 201911187152A CN 111070805 A CN111070805 A CN 111070805A
- Authority
- CN
- China
- Prior art keywords
- fiber
- tows
- layer
- flexible material
- layers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 154
- 239000000463 material Substances 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000007596 consolidation process Methods 0.000 title claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 123
- 238000013461 design Methods 0.000 claims abstract description 23
- 230000002787 reinforcement Effects 0.000 claims abstract description 6
- 239000002356 single layer Substances 0.000 claims abstract description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 35
- 239000004917 carbon fiber Substances 0.000 claims description 35
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 27
- 239000004744 fabric Substances 0.000 claims description 26
- 239000003365 glass fiber Substances 0.000 claims description 25
- 239000000499 gel Substances 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 229920005989 resin Polymers 0.000 claims description 12
- 239000004677 Nylon Substances 0.000 claims description 10
- 229920001778 nylon Polymers 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000007799 cork Substances 0.000 claims description 9
- 238000005299 abrasion Methods 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 6
- 229910021389 graphene Inorganic materials 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052755 nonmetal Inorganic materials 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 5
- 239000004753 textile Substances 0.000 claims description 5
- 229920001817 Agar Polymers 0.000 claims description 3
- 229920002748 Basalt fiber Polymers 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 108010010803 Gelatin Proteins 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000004964 aerogel Substances 0.000 claims description 3
- 239000008272 agar Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000008273 gelatin Substances 0.000 claims description 3
- 229920000159 gelatin Polymers 0.000 claims description 3
- 235000019322 gelatine Nutrition 0.000 claims description 3
- 235000011852 gelatine desserts Nutrition 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 229920005594 polymer fiber Polymers 0.000 claims description 3
- 229920006254 polymer film Polymers 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- 239000008279 sol Substances 0.000 claims 3
- 229920000642 polymer Polymers 0.000 claims 2
- 239000002131 composite material Substances 0.000 abstract description 12
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000009950 felting Methods 0.000 description 19
- 229920006231 aramid fiber Polymers 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 13
- 238000002513 implantation Methods 0.000 description 12
- 239000004642 Polyimide Substances 0.000 description 7
- 229920001721 polyimide Polymers 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 7
- 238000009958 sewing Methods 0.000 description 6
- 238000004080 punching Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 239000002657 fibrous material Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000012783 reinforcing fiber Substances 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Images
Classifications
-
- 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
- B32B5/02—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
-
- 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
- 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
- B32B3/26—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 particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—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 particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/008—Sewing, stitching
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
Landscapes
- Nonwoven Fabrics (AREA)
- Laminated Bodies (AREA)
Abstract
The invention provides a multi-layer multi-directional flexible material with any fiber direction and a consolidation method thereof, wherein each at least 1 fiber tow is taken as one group, and a fiber laying or tape laying device is adopted to lay each group of single-layer fiber tows which are arranged in parallel; the consolidation yarns penetrate through the hollow needle cavity part and penetrate out of the needle eye at the needle tip, the hollow needle is pushed to penetrate into the base material to be needled by the aid of the mechanical up-and-down reciprocating motion of the fiber tow spreading or tape spreading device, the hollow needle moves along the laying direction of the fiber tow and penetrates into two sides of the laid fiber tow according to design stitches to consolidate the fiber tow on the base material, the stitches are located on two sides of the newly laid fiber tow, and the fiber tow, the design layers and the design thickness are repeatedly laid and needled until the designed fiber direction, the design layers and the design thickness are laid. The consolidation method is efficient, rapid, low in cost and good in adaptability to raw materials, can form a reinforcement relation among multiple layers of fiber tows or base materials, and improves the impact damage resistance of the composite material.
Description
Technical Field
The invention relates to the technical field of fiber composite materials, in particular to a multi-layer multi-directional flexible material with any fiber direction and a consolidation method thereof.
Background
The fiber composite material has wide application range, and in order to meet the performance requirement of the fiber composite material, the fiber direction needs to be designed and changed according to the actual stress direction, in the prior art, fiber products all have basic structural units, such as plain weave, twill, woven fabric, knitted fabric, multi-axial warp knitted fabric, chopped fiber needled felt or three-dimensional knitted fabric, and the like.
If the structural characteristics of the fabric are changed, such as the increase of interlayer connection, interlayer reinforcement needs to be performed on the fiber product, the reinforcement between fiber layers can be realized by adopting the needling technology and matching with the use of the chopped strand mat, but the damage to the fibers is large, the use of the fiber mat needs to be increased, the cost is increased, and the production efficiency is low. In engineering, multiple layers of fiber products are often connected into a whole or the fiber products and flexible materials such as films and the like are connected into a whole, common methods include technologies such as sewing, three-dimensional weaving, needling, Z-pin and the like, in many engineering applications, sewing technologies with bottom threads cannot be adopted, such as sticking sewing, thick flexible material sewing and the like, in addition, the use of the bottom threads greatly influences the sewing speed, particularly for high-thickness fiber products. The common solid needle punching technology comprises a hook-punched needle punching technology, a fork-shaped needle punching technology and the like, the working efficiency is relatively high, however, short fibers are punched in the solid needle punching technology, and the damage to main fiber materials is easily caused; although continuous fibers are penetrated, the problem that yarns are taken out by each time of needling is easily caused by the needle sewing and needling technology, namely the yarns are easily taken out after each time of penetrating and lifting. The engineering urgently needs a reinforcing technology for fiber tows in any direction and multi-directional multi-layer materials, which is efficient, rapid, low in cost and good in adaptability to raw materials, so as to form the reinforcing relationship between the fiber tows and a base material and/or between fiber tow layers and/or between the fiber tow layers and the multi-layer base material.
Disclosure of Invention
In view of the above problems, the present invention provides a multi-layer multi-directional flexible material having an arbitrary fiber direction and a method for consolidating the same.
The purpose of the invention is realized by adopting the following technical scheme:
a consolidation method of multi-layer multi-directional flexible material with any fiber direction, each at least 1 fiber tow is taken as one group, and a fiber laying or tape laying device is adopted to lay the single-layer fiber tows which are arranged in parallel in each group; the consolidation yarns penetrate through the cavity part of the hollow pricker and penetrate out of the needle eye at the needle tip, the hollow pricker is pushed to be pricked into the base material for needling by mechanical up-and-down reciprocating motion along with the fiber paving or tape paving device, the hollow pricker moves along the laying direction of the fiber tows and is penetrated into two sides of the laid fiber tows according to designed stitches to consolidate the fiber tows on the base material, and the stitches are positioned on two sides of the newly laid fiber tows; repeatedly laying and needling according to the designed fiber direction, the designed layer number and the designed thickness until the design is finished;
preferably, the hollow pricker is a stainless steel or hard alloy hollow pricker, and the section of the hollow pricker is circular, oval or racetrack;
preferably, every 1-12 bundles of the fiber tows form one group;
preferably, the stitches are zigzag or corrugated or square wave or zigzag or other designed shapes;
preferably, when the number of the designed layers is multiple, the designed multi-layer multidirectional flexible material is divided into two or more parts, needling reinforcement is respectively carried out, one or two layers of base materials are paved between every 12-60 fiber tow layers, for 1-48 layers of fiber tows of the lower half part, the felting needles must be penetrated into the base materials, for 1-48 layers of fiber tows of the upper half part, the felting needles should be penetrated into the second layer of base materials and the fiber tows of the lower half part;
preferably, the consolidated yarns are stitches or plied yarns, including but not limited to 3k or 6k carbon fiber tows, glass fiber tows of 1500tex or less, metal tows, ceramic fiber tows, polymeric filament plied yarns, nylon stitches, monofilament stitches, glass fiber tows containing a polymeric abrasion-resistant resin gel coat or size, carbon fiber tows containing a polymeric abrasion-resistant resin gel coat or size;
preferably, the fiber tows are tows or flat tapes of flexible materials, including but not limited to carbon fibers, glass fibers, quartz fibers, basalt fibers, ceramic fibers, polymer fibers, metal tows;
preferably, the substrate is a textile or multi-layered fabric or a flexible material, the textile or multi-layered fabric including but not limited to a woven plain cloth, a mesh cloth, a fiber mat, the flexible material including but not limited to a high polymer film, a foamed material, natural cork, a gel, a sol, a metal foil, an inorganic non-metal sheet or other flexible porous material, the foamed material including but not limited to a foamed plastic, a foamed resin, a foamed rubber, the gel including a liquid gel including but not limited to agar and gelatin, and a dry gel including but not limited to a silicic acid gel, an aerogel, the sol including but not limited to fe (oh)3Sol, metal foil including but not limited to aluminum, copper, tin, and inorganic non-metal sheet including but not limited to flexible graphite paper, graphene flexible paper, graphene oxide paper.
The invention has the beneficial effects that:
(1) the fiber direction is designed according to any direction, the fibers laid in any direction need to be reinforced in time, and the continuous fiber tows are laid on the base material, so that the fiber tows can be fixed on the base material at any time when being laid in any direction, and the accurate optimization of the design of the composite material is achieved.
(2) The application provides a method for reinforcing fiber tows in any direction and a multi-layer multi-direction flexible material, which overcomes the problem of reinforcing the fiber tows in any direction and solves the problem of reinforcing between the fiber tows and a base material and/or between a fiber tow layer and a layer and/or between the fiber tow layer and a multi-layer base cloth.
(3) The hollow prickling is used for reinforcing fiber tows or fiber aggregates by using the continuous yarns, the integrity of a fiber product is better, the damage to fibers is smaller, the processing efficiency is higher, the designability of fibers in any direction or multi-layer or multi-function and the like of the composite material is comprehensively improved, the defect that the impact resistance of a composite material laminated plate is poorer is overcome, the defects that the laminated plate is easy to delaminate after being impacted and the like are overcome, the mechanical property of the edge of the composite material is improved, the problems of edge cracking, edge scattering and the like of the composite material are effectively solved, and the impact resistance damage capability of the composite material is improved.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
FIG. 1 is a view of a hollow needle with consolidated yarns;
FIG. 2 is a schematic cross-sectional view of a hollow spike;
FIG. 3 is a schematic representation of fiber tow and stitch distribution;
FIG. 4 is a schematic view of a multi-layer multi-directional flexible material structure of a single substrate;
FIG. 5 is a schematic view of a multi-layer multi-directional flexible material structure of a multi-layer substrate.
Reference numerals: 10-hollow felting needle; 11-needle eye; 100-fiber tows; 200-a substrate; 500-implanted consolidated yarns; 600-implantation point; 101-a first portion of a multi-layer multidirectional fiber tow; 102-a second portion of multi-layer multidirectional fiber tows; 103-a third portion of multi-layer multidirectional fiber tows; 201-a first layer of substrate; 202-a second layer of substrate; 203-third layer of substrate.
Detailed Description
The invention is further described with reference to the following examples.
The embodiment of the application relates to a method for consolidating a multi-layer multi-directional flexible material with any fiber direction, at least 1 fiber tow is taken as one group, and a fiber laying or tape laying device is adopted to lay single-layer fiber tows which are arranged in parallel in each group; the consolidation yarn passes through the hollow pricker cavity part and penetrates out of a needle eye at the needle tip, the hollow pricker is pushed to be pricked into a base material for needling by mechanical up-and-down reciprocating motion along with a fiber bundle laying or tape laying device, the hollow pricker moves along the laying direction of the fiber bundle and is pricked into two sides of the laid fiber bundle or in the fiber bundle according to a designed stitch to consolidate the fiber bundle, the stitch is positioned on two sides of the newly laid fiber bundle or in the fiber bundle, the fiber bundle laid in any direction is connected onto the base material by the consolidation yarn, and the laying and the needling are repeated until the designed fiber direction, the designed number of layers and the designed thickness are completed;
the needle pitch and the row pitch are determined according to the laying direction of the fiber tows and the width of the fiber tows, after the hollow felting needle is penetrated once and moved out, the fiber material is pushed by hand or machine to move by a distance of one needle pitch along the plane direction, the foot pressing plate follows the felting needle and presses a new stitch, the actions are repeated, and the needling with the set area is completed according to the needle pitch, the row pitch and the stitch design;
the needle pitch is the distance between two adjacent implantation points, and the row pitch is the distance between two parallel single stitches;
preferably, the hollow pricker is a stainless steel or hard alloy hollow pricker, and the section of the hollow pricker is circular, oval or racetrack;
the hollow felting needle is adopted, so that the needling speed is favorably improved, the friction resistance can be reduced, the damage to a reinforced material can be reduced, the implantation depth of consolidated yarns can be favorably increased, the damage to fiber tows is small, needle hole holes are also small, the end of the yarn left on the surface of a fiber product by the hollow needling technology is in a point shape or a small ring shape, the trace of the end of the yarn can be reduced to the maximum extent by the trimming technology, and the precise design and performance optimization of a composite material structure can be realized by adopting the hollow needling technology;
preferably, every 1-12 bundles of the fiber tows form one group;
preferably, the stitches are zigzag or corrugated or square wave or zigzag or other designed shapes;
the ripple or square wave stitch is a stitch obtained by projecting and fixing the yarns from top to bottom, and is beneficial to covering the length of the whole fiber bundle;
preferably, when the number of the designed layers is multiple, the designed multi-layer multidirectional flexible material is divided into two or more parts, needling reinforcement is respectively carried out, a new base material can be added between every two parts of fiber materials, or no base material can be added, one or two layers of base materials are paved between every 12-60 fiber tow layers, for 1-48 layers of fiber tows in the lower half part, a needle is needed to be inserted into the base materials, for 1-48 layers of fiber tows in the upper half part, the needle is needed to be inserted into the second layer of base material and inserted into the fiber tows in the lower half part; according to the design requirements of the structure and performance of the composite material, different specifications of the felting needles are adopted to adjust the implantation depth of the consolidated yarns, and the implantation depth is the length of yarns carried by the felting needles;
one or two layers of attached base materials are laid between every 12-60 fiber tow layers, two layers of base materials are adopted, the ends of the yarns can be locked and fixed better, and more yarns can be brought out of one layer of base material;
preferably, the consolidated yarns are stitches or plied yarns, including but not limited to 3k or 6k carbon fiber tows, glass fiber tows of 1500tex or less, metal tows, ceramic fiber tows, polymeric filament plied yarns, nylon stitches, monofilament stitches, glass fiber tows containing a polymeric abrasion-resistant resin gel coat or size, carbon fiber tows containing a polymeric abrasion-resistant resin gel coat or size;
preferably, the fiber tows are tows or flat tapes of flexible materials, including but not limited to carbon fibers, glass fibers, quartz fibers, basalt fibers, ceramic fibers, polymer fibers, metal tows;
preferably, the substrate is a textile or multi-layered fabric including but not limited to woven plain cloth, mesh cloth, fiber felt, or a flexible material including but not limited to high polymer film, foamed material including but not limited to foamed plastic, foamed resin, foamed rubber, natural cork, gel including liquid gel including but not limited to foamed plastic, foamed resin, foamed rubber, sol, metal foil, inorganic non-metal sheet, or other flexible porous material, or a flexible material including but not limited to foamed rubber, foamed resin, foamed rubber, and dried gel including liquid gel including but not limited to foamed plastic and foamed rubber, and a liquid gel including but not limited to foamed resin, foamed rubber, foamedBut not limited to agar, gelatin, including but not limited to silicic acid gels, aerogels, including but not limited to Fe (OH)3Sol, metal foil including but not limited to aluminum, copper, tin, and inorganic non-metal sheet including but not limited to flexible graphite paper, graphene flexible paper, graphene oxide paper.
Example 1
Step 1: pricking pin specification and material selection: the specification of the hollow felting needle has the outer diameter phi of 1.2mm and the inner diameter phi of 0.8mm, the working length h of the same felting needle is 40mm, a nylon thread is used as consolidation yarn, 1600tex twistless roving glass fiber is used as a laying fiber tow, the thickness of the fiber tow is h of 0.3mm, a filament glass fiber felt is used as a filling material, the thickness is 0.2mm, the glass fiber felt is used as a base material, and the thickness is 0.6 mm;
step 2: preform structure, fiber direction and ply design: the glass fiber tows of 4 bundles are used as a group to be laid in parallel, the glass fiber tows of the upper half part are 30 layers, and the laying angles from the first layer to the 30 th layer are respectively as follows: 0 °, 6 °, 12 °, 18 °, ·, 180 °, with 6 ° difference between adjacent layers; the glass fiber tow of the latter half is also 30 layers, and the glass fiber of the latter half lays the angle from the bottom up and is respectively: 0 degrees, 6 degrees, 12 degrees, 18 degrees, 180 degrees, the difference between adjacent layers is 6 degrees, the middle layer is a glass fiber felt substrate, and the substrate is cut into the area of 800mm multiplied by 600 mm;
and step 3: and (3) needling process: setting the needle pitch to be 6mm and the row pitch to be 8mm, carrying out layering and needling from the lower layer to the upper layer in sequence, adopting a double-roller tow laying head to clamp a glass fiber tow, laying each layer of fiber tow according to the design angle of each layer, penetrating a nylon thread as a consolidated yarn through a hollow felting needle and fixing or clamping the nylon thread head, carrying out needling once by the felting needle with the nylon consolidated yarn, namely finishing the next upper needling and lifting the needle, moving the whole fiber tow material by a needle pitch distance along the plane, and finishing the needling with the area of 800mm multiplied by 600mm according to the needle pitch, the row pitch and the stitch design;
the total thickness of the layers of the base material is 18.6mm, the needling depth of the lower half part is 12-14 mm, the implantation depth is 11-12 mm, the 30 layers of fiber tows of the lower half part are penetrated, the nylon yarns of the consolidation yarns are penetrated through the base material through the hollow felting needle, so that the ends of the nylon yarns are reserved on the back surface of the base material, and the operation is repeated; laying a layer of base material glass fiber felt on the lower half of the needled fiber tows, needling the upper half of the needled fiber tows to a depth of 15-17 mm and an implantation depth of 13-15 mm, needling the upper half of the 30 layers of fiber tows, piercing the middle base material glass fiber felt with consolidated yarn nylon threads and implanting the middle base material glass fiber felt into the lower half of the reinforced fiber tows, and repeating the operations to complete the preparation of the fiber tow preform in the design direction of the base material;
under high-speed needling conditions, a small piece of yarn can be brought out during the extraction process of the needle due to inertia and friction, and the implantation depth can be smaller than the needling depth due to the distance from the needle point to the needle eye and the shape of the needle point; the hollow needle punching technology is adopted, the friction force of the consolidated yarns outside the needle tube is always greater than that inside the hollow needle tube, the density of the base cloth generally adopted is higher, and the consolidated yarns are not basically produced in the needle lifting process;
and 4, step 4: and (3) reinforcing the edge of the finished fiber tow preform, supplementing needles at the edge, inserting the needles along the middle position of the adjacent row spacing of the front stitch, and needling the edge once again to reinforce the edge of the flexible material so as to prevent the phenomena of edge scattering, cracking, rough edges and the like after curing.
Example 2
Step 1: selecting materials: the specification of the hollow pricker has the outer diameter phi of 1.4mm and the inner diameter phi of 0.93mm, the working length h1 of the pricker is 40mm and is used for needling the lower half fiber tows, the working length h2 of the pricker is 30mm and is used for needling the upper half fiber tows, aramid fiber wires are used as consolidation yarns, T700SC-12K carbon fibers are used as reinforcing fiber tows, the thickness is 0.32mm, the thickness of hard thermosetting Polyimide (PI) foam board is 2mm, 6K carbon fiber mesh cloth is used as a bottom layer base material, and the thickness is 0.28 mm;
step 2: preform structure, fiber direction and ply design: the method is characterized in that 4 bundles of T700SC-12K carbon fibers are used as a group to be laid in parallel, the lower half part is 20 layers of T700SC-12K carbon fibers, and the laying angles from a first layer to a second layer to a 20 th layer are respectively as follows: 0 °, 9 °, 18 °, 27 °, ·, 180 °, with a 9 ° difference between adjacent layers; the middle substrate layer is a Polyimide (PI) foam plate with the thickness of 2 mm; the upper half part is 30 layers of T700SC-12K carbon fibers, and the laying angles of the carbon fibers in the upper half part are respectively from bottom to top: the first layer is 0 degree, the second layer is 6 degrees, the third layer is 12 degrees, the fourth layer is 18 degrees, the degree is 180 degrees, the difference between adjacent layers is 6 degrees, the middle layer is a carbon fiber felt base material with the thickness of 0.5mm, the base material is cut into the size of 400mm multiplied by 300mm, 6K carbon fiber mesh cloth is used as a bottom layer base material, and the layers are sequentially laid and needled from the bottom layer to the upper layer.
And step 3: and (3) needling process: designing the needle pitch to be 8mm, the row pitch to be 16mm, adopting a three-roller laying tow head to clamp the carbon fiber tows, laying each layer of carbon fiber tows in a shape of '>' or '<' (the included angle in a broken line is 20-70 degrees), leading out and fixing or clamping the aramid fiber yarns serving as the consolidated yarns after the aramid fiber yarns pass through a hollow felting needle and a needle eye, moving the whole fiber tow material by a needle pitch distance along a plane after the felting needle penetrates the aramid fiber consolidated yarns once, namely completing one-step needling and lifting the felting needle, and completing needling with the area of 400mm multiplied by 300mm according to the needle pitch, the row pitch and the stitch design;
the total thickness of the base material and the laying layer is 18.28mm, the needling depth of the lower half part is 9.5-12.5 mm, the implantation depth of the consolidated yarn is 7-9 mm, 20 layers of fiber tows of the lower half part are penetrated, the consolidated yarn aramid fiber thread is penetrated and penetrates through the base material carbon fiber gridding cloth, the end of the aramid fiber consolidated thread is left on the back surface of the carbon fiber gridding cloth, and the 20 layers of needling of the lower half part is completed by repeating the above operations. Laying a layer of thermosetting Polyimide (PI) foam board 2mm thick on the lower half of the carbon fiber tows, taking the needling depth of the upper half of the carbon fiber tows as 14-16 mm, the implantation depth of consolidated yarns as 11-13 mm, needling the 30 layers of carbon fiber tows on the upper half of the carbon fiber tows, penetrating the consolidated aramid fiber lines through the PI foam board and implanting the consolidated aramid fiber lines into the lower half of the carbon fiber tows, and repeating the operation to complete the preparation of the fiber tow preform in the design direction of the base material;
and 4, step 4: and (3) reinforcing the edge of the finished fiber tow preform, supplementing needles at the edge, inserting the needles along the middle position of the adjacent row spacing of the front stitch, and needling the edge once again to reinforce the edge of the flexible material so as to prevent the phenomena of edge scattering, cracking, rough edges and the like after curing.
Example 3
Step 1: selecting materials: the specification of the hollow pricker has an outer diameter phi of 1.2mm, an inner diameter phi of 0.8mm, a working part length h of 40mm, 3K carbon fiber soaked with glue is used as consolidation yarn, 2400tex twistless roving glass fiber is used as fiber tow, the equivalent thickness is 0.35mm, 1200tex glass fiber plain cloth is used as a base material, the thickness of a single-layer fabric is 0.3mm, and the thickness of cork is 4 mm;
step 2: preform structure, fiber direction and ply design: the lower half part is 40 layers of T700SC-12K carbon fibers, two adjacent layers are laid according to the same angle, the 1 st layer, the 2 nd layer, the 3 rd layer and the 4 th layer, and the laying angles from the 39 th layer to the 40 th layer are respectively: 0 °, 9 °, 18 °, 27 °, ·, 180 °; the middle substrate layer is 4mm cork board, and the first half is 40 layers 2400tex roving glass fiber for the fibre silk bundle, 40 layers 2400tex roving, and adjacent two-layer is laid according to the same angle, 1 st, 2 nd, 3 rd, 4 th layer, and the angle of laying to 39 th, 40 th layer is respectively: 0 degree, 9 degree, 18 degree, 27 degree, 180 degree, 1200tex glass fiber plain cloth is used as the bottom substrate, the substrate is cut into the size of 500mm by 500mm, and then the layers are laid in sequence from the lower layer to the upper layer;
and step 3: and (3) needling process: the design stitch length is 8mm, and the row spacing is 16 mm. The method comprises the following steps of (1) paving a tow head by adopting three rollers, clamping carbon fiber tows, paving each layer of carbon fiber tows according to a design direction, leading an aramid fiber wire serving as a consolidated yarn out after the aramid fiber wire penetrates through a hollow felting needle and a needle eye, and fixing or clamping the aramid fiber tow head, wherein the felting needle carries the aramid fiber consolidated wire to be pierced once, namely, after the felting needle is lifted up, the whole fiber tow material is moved by a needle distance along a plane, and needling with the area of 500mm multiplied by 500mm is finished according to the needle distance, the row distance and the stitch design;
the total thickness of the laying layer is 28mm, the needling depth of the lower half part is 12.5-14.5 mm, the implantation depth is 10-11 mm, 40 layers of fiber tows of the lower half part are penetrated, the aramid fiber threads of the consolidated yarns are penetrated through the base material carbon fiber gridding cloth, so that the ends of the aramid fiber consolidated yarns are reserved on the back surface of the carbon fiber gridding cloth, and the operation is repeated to finish the needling of the 40 layers of the lower half part; laying a layer of cork on the lower half carbon fiber tows again, wherein the thickness of the cork is 4mm, taking the needling depth of the upper half part as 16-18 mm, and the implantation depth as 14-16 mm, needling 40 layers of the upper half carbon fiber tows, and piercing the 4mm thick cork with the solidified aramid fiber wires and implanting the cork into the lower half carbon fiber tows, repeating the above operations, and completing the preparation of the fiber tow preform in the design direction comprising the substrate.
And 4, step 4: and (3) reinforcing the edge of the finished fiber tow preform, supplementing needles at the edge, inserting the needles along the middle position of the adjacent row spacing of the front stitch, and needling the edge once again to reinforce the edge of the flexible material so as to prevent the phenomena of edge scattering, cracking, rough edges and the like after curing.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A method for consolidating a multi-layer multi-directional flexible material with any fiber direction is characterized in that at least 1 fiber tow is taken as one group, and a fiber laying or tape laying device is adopted to lay single-layer fiber tows which are arranged in parallel in each group; the consolidation yarns penetrate through the cavity part of the hollow pricker and penetrate out of the needle eye at the needle tip, the hollow pricker is pushed to be pricked into the base material for needling by mechanical up-and-down reciprocating motion along with the fiber paving or tape paving device, the hollow pricker moves along the laying direction of the fiber tows and is penetrated into two sides of the laid fiber tows according to designed stitches to consolidate the fiber tows on the base material, and the stitches are positioned on two sides of the newly laid fiber tows; and (5) repeatedly laying and needling according to the designed fiber direction, the designed layer number and the designed thickness until the design is finished.
2. The method of claim 1, wherein the hollow needle is a stainless steel or cemented carbide hollow needle with a cross-section of a circular, oval or racetrack shape.
3. The method for consolidating a multi-layer multi-directional flexible material with random fiber direction according to claim 1, wherein said fiber tows are grouped in each 1-12 tows.
4. The method for consolidating multilayer multidirectional flexible material with random fiber directions as claimed in claim 1, wherein the stitches are zigzag or wave-like or square wave-like or zigzag or other designed shapes.
5. The method for consolidating a multi-layer multi-directional flexible material with any fiber direction according to claim 1, wherein when the number of layers is designed to be multi-layer, the multi-layer multi-directional flexible material is divided into two or more parts, each part is needled for reinforcement, one or two layers of base materials should be laid between every 12-60 layers of fiber tows, the needling must be penetrated into the base materials for the lower half parts of 1-48 layers of fiber tows, and the needling should be penetrated into the base materials for the upper half parts of 1-48 layers of fiber tows and the fiber tows in the second half part.
6. A method of consolidating a multi-layer, multi-directional, flexible material having any arbitrary fiber orientation, according to claim 1, wherein said consolidating yarns are stitches or plied yarns, including but not limited to 3k or 6k carbon fiber tows, glass fiber tows of 1500tex or less, metal tows, ceramic fiber tows, polymeric filament plied yarns, nylon stitches, monofilament stitches, glass fiber tows containing a polymer abrasion resistant resin gel coat or size, carbon fiber tows containing a polymer abrasion resistant resin gel coat or size.
7. The method for consolidating a multi-layer multi-directional flexible material with any fiber orientation according to claim 1, wherein said fiber tow is a flexible material tow or flat tape, including but not limited to carbon fiber, glass fiber, quartz fiber, basalt fiber, ceramic fiber, polymer fiber, metal tow.
8. The method for consolidating a multi-layered multi-directional flexible material with random fiber orientation according to claim 1, wherein the substrate is a textile or multi-layered fabric or flexible material, the textile and multi-layered fabric includes but is not limited to woven plain cloth, mesh cloth, fiber felt, the flexible material includes but is not limited to high polymer film, foamed material, natural cork, gel, sol, metal foil, inorganic non-metal sheet or other flexible porous material, the foamed material includes but is not limited to foamed plastic, foamed resin, foamed rubber, the gel includes liquid gel and dry gel, the liquid gel includes but is not limited to agar and gelatin, the dry gel includes but is not limited to silicic acid gel and aerogel, the sol includes but is not limited to Fe (OH)3Sol, metal foil including but not limited to aluminum, copper, tin, and inorganic non-metal sheet including but not limited to flexible graphite paper, graphene flexible paper, graphene oxide paper.
9. A multi-layer multi-directional flexible material having random fiber orientation prepared according to the consolidation method of any of claims 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911187152.6A CN111070805A (en) | 2019-11-28 | 2019-11-28 | Multilayer multidirectional flexible material with any fiber direction and consolidation method thereof |
| PCT/CN2019/128814 WO2021103251A1 (en) | 2019-11-28 | 2019-12-26 | Consolidation method of multi-layer multi-directional flexible material with any fiber direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911187152.6A CN111070805A (en) | 2019-11-28 | 2019-11-28 | Multilayer multidirectional flexible material with any fiber direction and consolidation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111070805A true CN111070805A (en) | 2020-04-28 |
Family
ID=70311948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911187152.6A Pending CN111070805A (en) | 2019-11-28 | 2019-11-28 | Multilayer multidirectional flexible material with any fiber direction and consolidation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111070805A (en) |
| WO (1) | WO2021103251A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3109553A1 (en) * | 2020-04-28 | 2021-10-29 | Institut De Recherche Technologique Jules Verne | Manufacturing process of a flat preform |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304860A (en) * | 2005-07-22 | 2008-11-12 | 空中客车德国有限公司 | Device for producing in a TFP method a fibre preform provided with an almost any surface geometry |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4711190A (en) * | 1983-11-16 | 1987-12-08 | General Motors Corporation | Decoratively stitched trim part and method |
| FR2565262B1 (en) * | 1984-05-29 | 1986-09-26 | Europ Propulsion | METHOD FOR MANUFACTURING A MULTI-DIRECTIONAL FIBROUS TEXTURE AND DEVICE FOR CARRYING OUT THIS METHOD |
| BE1009787A7 (en) * | 1995-12-01 | 1997-08-05 | Laureyssens Dirk | Special needle |
| US6196145B1 (en) * | 1998-11-17 | 2001-03-06 | Albany International Techniweave, Inc. | Yarn insertion mechanism |
| FR2949122B1 (en) * | 2009-08-14 | 2013-02-01 | Ferlam Tech | PROCESS FOR MANUFACTURING A MULTIAXIAL COMPLEX OF NAPPES PRODUCED FROM BANDS IN THE FORM OF BANDS AND MANUFACTURING PLANT |
| CN104711775B (en) * | 2015-04-01 | 2017-07-21 | 赵晓明 | A kind of continuous decentralized filament fiber Nomex and preparation method thereof |
| CN110549642A (en) * | 2019-09-06 | 2019-12-10 | 长沙晶优新材料科技有限公司 | Puncture profiling prefabricated part |
| CN110549641A (en) * | 2019-09-06 | 2019-12-10 | 长沙晶优新材料科技有限公司 | profiling prefabricated part puncturing method |
-
2019
- 2019-11-28 CN CN201911187152.6A patent/CN111070805A/en active Pending
- 2019-12-26 WO PCT/CN2019/128814 patent/WO2021103251A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101304860A (en) * | 2005-07-22 | 2008-11-12 | 空中客车德国有限公司 | Device for producing in a TFP method a fibre preform provided with an almost any surface geometry |
Non-Patent Citations (1)
| Title |
|---|
| 谢鸣九: "《复合材料连接技术》", 31 December 2016 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3109553A1 (en) * | 2020-04-28 | 2021-10-29 | Institut De Recherche Technologique Jules Verne | Manufacturing process of a flat preform |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021103251A1 (en) | 2021-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6599610B2 (en) | Multiaxially stitched base material for reinforcing and fiber reinforced plastic, and method for preparing them | |
| CN110184722B (en) | Preparation method of carbon-rod-punctured carbon fiber three-dimensional fabric | |
| CN102166840B (en) | Z direction continuous carbon fiber prefabricated body | |
| CN112779645B (en) | Multilayer composite structure three-dimensional fabric and preparation method thereof | |
| JP2009019202A (en) | Molding material, preform and fiber-reinforced resin | |
| US7509714B2 (en) | Needled glass mat | |
| KR101931030B1 (en) | Through-the-thickness carbon fiber composites and method of preparing the same | |
| CN113573875B (en) | Stitched multiaxial reinforcement | |
| CN111070805A (en) | Multilayer multidirectional flexible material with any fiber direction and consolidation method thereof | |
| WO2007018096A1 (en) | Multiaxial nonwoven sheet for fiber-reinforced plastics and process for production thereof | |
| CN107385676B (en) | A kind of flexible puncture-proof material and preparation method thereof | |
| CN111361241A (en) | Mixed orientation fiber composite cloth | |
| CN102126310A (en) | Non-woven reinforced needle-punched non-woven fabric and manufacturing method thereof | |
| CN103061045B (en) | Method for preparing longitudinally reinforced composite preform, and composite | |
| CN103112180B (en) | Composite fabricated part based on digital guide template and preparation method thereof | |
| Ogale et al. | Textile preforms for advanced composites | |
| CN114013127B (en) | Non-woven fabric reinforced composite material and preparation method thereof | |
| CN106192196B (en) | A kind of suture method for weaving for the fabric that binds | |
| Ko et al. | Textile preforming | |
| Ahmadi et al. | Date palm fiber preform formation for composites | |
| CN111373083B (en) | Unidirectional fabric and application thereof | |
| CN212147617U (en) | System for connecting flexible materials | |
| CN212194489U (en) | Wide carbon fiber cloth and three-dimensional fiber preform | |
| CN111716862A (en) | Three-dimensional prefabricated part with needling and superficial sewing functions and preparation method thereof | |
| CN111016219A (en) | Method for connecting flexible materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200428 |
|
| RJ01 | Rejection of invention patent application after publication |