CN107723878A - 3-dimensional multi-layered doughnut strengthens fabric - Google Patents
3-dimensional multi-layered doughnut strengthens fabric Download PDFInfo
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- CN107723878A CN107723878A CN201710988506.1A CN201710988506A CN107723878A CN 107723878 A CN107723878 A CN 107723878A CN 201710988506 A CN201710988506 A CN 201710988506A CN 107723878 A CN107723878 A CN 107723878A
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- 239000004744 fabric Substances 0.000 title claims abstract description 49
- 235000012489 doughnuts Nutrition 0.000 title abstract 2
- 230000002708 enhancing effect Effects 0.000 claims abstract description 20
- 239000010410 layer Substances 0.000 claims description 77
- 239000000835 fiber Substances 0.000 claims description 46
- 238000010276 construction Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 7
- 239000011229 interlayer Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 7
- 239000004567 concrete Substances 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- -1 polypropylene Polymers 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 229920002748 Basalt fiber Polymers 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 229920002972 Acrylic fiber Polymers 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 229920000914 Metallic fiber Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920002334 Spandex Polymers 0.000 description 2
- 229920004933 Terylene® Polymers 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920006253 high performance fiber Polymers 0.000 description 2
- 238000009940 knitting Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000004759 spandex Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000002742 anti-folding effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000001191 orthodromic effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D11/00—Double or multi-ply fabrics not otherwise provided for
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/0035—Protective fabrics
- D03D1/0041—Cut or abrasion resistant
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D25/00—Woven fabrics not otherwise provided for
- D03D25/005—Three-dimensional woven fabrics
Abstract
The present invention relates to a kind of 3-dimensional multi-layered doughnut enhancing fabric, belong to technical field of composite materials.The fabric includes first layer, the second layer and the intermediate layer between first layer and the second layer；First layer forms two dimensional tissues by the first warp thread and the first weft yarns；The second layer forms 3-dimensional multi-layered tissue by the second warp thread and the second weft yarns；Intermediate layer forms three-dimensional hollow structure by the vertical warp of connection first layer and the second layer；Vertical warp respectively with the first weft yarn and the second weft yarns, first layer, the second layer and intermediate layer are made into three-dimensional overall structure.The fabric is that a kind of structural integrity is strong, cost is low, composite fiber-reinforced fabric easy to use, excellent combination property.
Description
Technical field
The present invention relates to a kind of fabric construction, belong to technical field of composite materials.
Background technology
Fabric reinforced composites, including composite wood is strengthened as matrix fiber fabric using resin, ceramics, concrete
Material, there is the advantages of lightweight, high-strength, excellent combination property, in recent years in fields such as building, water conservancy, dykes and dams protection, communications and transportation
Application it is more and more extensive.
The textile reinforcement structure shape of current fabric reinforced composites be mostly two-dimensional fabric, three-dimensional hollow fabric or
Warp knit three-dimensional spacer fabric, the two-dimensional fabric enhanced form of individual layer can not be realized three-dimensional compound with matrix material, two dimension be present
Enhancing two-phase interface layer, and multilayer two-dimension fabric laminate is increased for the three-dimensional 3-D stacks two-dimensional fabric compound with matrix again
The strong Interlaminar shear strengths that can produce again are poor, and the problem of easily layering, and it is complicated to construct.And current warp knit three-dimensional spacer fabric is taken
The connected knitted structure of " handing in hand " circle circle, yarns in worsted fabric form three dimensional fabric each other in snare knot, problems be present：
1st, yarn flexing is larger in lopping tissue, and internal reinforcing fiber bending is very big, and intertwined point is more, and being unfavorable for stress wave is strengthening
The propagation of structure, is easily caused stress concentration, drops low-fiber performance；
2nd, after the lopping of warp knit three dimensional fabric caused by extensibility, fiber can not be allowed to undertake stress, play its enhancing that should have
Effect；
3rd, the effect of fabric can not be all played into the toughening effect of snare knot, after cement-based material is broken, knitted fabric
Toughening effect hysteresis；
4th, the lopping of three dimensional separation knitted fabric yarn and flexing are unsuitable for inorganic high-performance fiber（Glass fibre, basalt are fine
Dimension, carbon fiber, ceramic fibre etc.）Application, limit applications and popularization of the TRC in wider field.
Existing three-dimensional hollow space fabric, upper and lower two layers is individual layer, in stretch-proof, counter-bending, puncture resistant, wear-resistant etc.
Shortcomings in performance.
The content of the invention
The technical problem to be solved in the present invention is, in view of the shortcomings of the prior art, propose a kind of globality of enhancing structure it is strong,
Activeness and quietness, anti-folding cracking resistance, easy to use, inexpensive 3-dimensional multi-layered-doughnut enhancing fabric.
The present invention is to solve the technical scheme that above-mentioned technical problem proposes to be：A kind of 3-dimensional multi-layered-doughnut enhancing is knitted
Thing, including first layer, the second layer and the intermediate layer between the first layer and the second layer；The first layer is by the first warp thread
Two dimensional tissues are formed with the first weft yarns；The second layer forms 3-dimensional multi-layered group by the second warp thread and the second weft yarns
Knit；The intermediate layer forms three-dimensional hollow structure by the vertical warp for connecting the first layer and the second layer；The vertical warp difference
With first weft yarn and the second weft yarns, the first layer, the second layer and intermediate layer are made into three-dimensional overall structure.
The working mechanism of the technical scheme of 3-dimensional multi-layered disclosed in the invention described above-doughnut enhancing fabric and beneficial effect
Fruit is presented below：
3-dimensional multi-layered-doughnut enhancing fabric of the present invention includes first layer, the second layer and positioned at intermediate layer, and by hanging down, warp will
First layer, the second layer and intermediate layer are made into three-dimensional overall structure, and this is complete with the institutional framework of 3 D stereo warp-knitted spacer fabric
Complete different, there is X, Y, the three-dimensional yarn of Z-direction distribution in its space structure, have three-dimensional hollow structure（Intermediate layer by connecting respectively
The vertical warp of first layer and the second layer forms three-dimensional hollow structure）With the possessed Optimality of both 3-dimensional multi-layered institutional frameworks
Energy.
Meanwhile fabric elementary organization form of the invention is " shoulder to shoulder ", fiber forward exist side by side by root root, gives full play to fiber
The effect of enhancing, while toughening effect is more preferable, globality is strong, and each filling yarn stress cooperative effect is strong during stress.
Structure possessed by 3-dimensional multi-layered tissue in 3-dimensional multi-layered-doughnut enhancing fabric of the present invention greatly promotes
Stretch-proof, counter-bending, shock resistance, puncture resistant and anti-penetration properties.
Summarizing the beneficial effect of the 3-dimensional multi-layered-doughnut enhancing fabric technology scheme of the invention described above is：
1）Good shock resistance：The second weft yarn linear state in 3-dimensional multi-layered tissue, and the second warp thread is in approximate straight
The space reflection formula distribution of wire, when by percussion, the yarn at percussion point can rapidly will by the warp that hangs down
Shock loading and impact capacity are delivered in the 3-dimensional multi-layered tissue of the second layer, then along linear second warp thread and the second weft yarn
In the form of stress wave to farther scope diffusion with, propagate, an active force is quickly converted to face active force and body active force,
Therefore there is good shock resistance.
2）Good tensile resistance：The second warp thread and the second weft yarn in the 3-dimensional multi-layered tissue of the second layer are grown along material
Degree and width uniformly forward stretch, and the connection that is interlaced with one another, therefore the orthodromic of fiber, globality are strong, and in material
Portion is evenly distributed, and when receiving tensile load effect, the 3-dimensional multi-layered weaving yarn of this connection of forward arranging bears stretching and made jointly
Firmly, and because woven yarn is smaller than Three-dimensional warp knitting space fabric yarn flexural deformation, be not easy because deform it is excessive take the lead in produce and matrix
Concrete interface separation failure, therefore fabric and concrete composite material tensile property are very good.
3）Good penetration-resistant energy：Second warp thread of the 3-dimensional multi-layered tissue of the second layer and the yarn of the second weft yarn are each other
The close formation that interweaves is overall, and in thickness direction into Multi-layers distributing, can be by 3-dimensional multi-layered group of the second layer when external force punctures
The barrier layer by layer through weft yarn in knitting, it can effectively avoid the puncture as caused by cutter, wooden, the sharp stone of point etc. of external environment condition sharp objects
Damage.
The present invention not only solves deficiency of the fabric as TRC enhancing skeleton, the defects of compensate for traditional structural materials,
Also weeded out the old and bring forth the new simultaneously on domestic and international Research foundation, performance is more preferable, and application is more extensive.
The improvement of above-mentioned technical proposal is：Two dimensional tissue is to interweave with being formed according to three foundation weave or its alternative construction,
The 3-dimensional multi-layered tissue is to interweave with being formed according to 3-dimensional multi-layered Angular interlocking structure or 3-dimensional multi-layered orthohormbic structure.
The further improvement of above-mentioned technical proposal is：The three foundation weave is plain weave, twill or satin weave, the alternative construction
It is the combination alternative construction of plain weave, twill or satin weave.
The further improvement of above-mentioned technical proposal is：The 3-dimensional multi-layered Angular interlocking structure include multilayer through angle interlocking,
Multilayer interlayer angle is interlocked and the multilayer angle interlocking with laying-in, inlaid thread, the number of plies of the 3-dimensional multi-layered tissue are no less than two layers.
The one of perfect of above-mentioned technical proposal be：The first layer be formed with multiple length and widths >=3mm grid hole.
Perfect two of above-mentioned technical proposal are：The vertical warp is a kind of monofilament long fibre yarn, a kind of monofilament length fibre
Tie up yarn, a kind of thinner fiber yarn or a variety of thinner as support yarn and one or more thinner fiber compositions
The yarn of fiber composition.
The present invention uses above-mentioned technical proposal, and the fiber selected by warp that hangs down has broad applicability, can use all kinds of
Organic fiber（Such as terylene, polypropylene fibre, polyamide fibre, acrylic fibers, spandex, nylon, polytetrafluoroethylene (PTFE), polyimides, polyamide, aramid fiber, superelevation
Molecular weight polyethylene fiber, PBO, PI）, all kinds of inorfils can also be used（As basalt fibre, glass fibre, carbon fiber,
Ceramic fibre, alumina fibre, boron fibre, high silica fiber, metallic fiber etc.）, animal and plant fiber can also be used（As cotton,
Fiber crops, hair, silk etc.）.
Perfect three of above-mentioned technical proposal are：Every vertical warp respectively with least three first weft yarns and at least three
Two weft yarns are interleaved.
Perfect four of above-mentioned technical proposal are：The vertical warp is with V-arrangement, X-shaped, I shapes, S-shaped or degree of lip-rounding one kind therein
Or a variety of it is connected respectively with first layer and the second layer.
Perfect five of above-mentioned technical proposal are：The thickness of the fabric is 5~40mm.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of 3-dimensional multi-layered-doughnut enhancing fabric of the embodiment of the present invention.
Fig. 2 is Fig. 1 stereogram.
Fig. 3 is that vertical warp is connected the structural representation one to be formed with first layer and the second layer respectively in Fig. 1.
Fig. 4 is that vertical warp is connected the structural representation two to be formed with first layer and the second layer respectively in Fig. 1.
Fig. 5 is that vertical warp is connected the structural representation three to be formed with first layer and the second layer respectively in Fig. 1.
Embodiment
Embodiment
3-dimensional multi-layered-doughnut enhancing the fabric of the present embodiment, as depicted in figs. 1 and 2, including first layer 1, the second layer
2 and the intermediate layer 3 between first layer and the second layer.
First layer 1 is interweaved by the first warp thread 1-1 and the first weft yarn 1-2 forms two dimensional tissues.Two dimensional tissues are former according to three
Tissue or its alternative construction interweave with being formed, and three foundation weave is plain weave, twill or satin weave, and alternative construction is plain weave, twill or satin weave
Combination alternative construction.
The second layer 2 is interweaved by the second warp thread 2-1 and the second weft yarn 2-2 forms 3-dimensional multi-layered tissue.3-dimensional multi-layered tissue is
Interweave with being formed according to 3-dimensional multi-layered Angular interlocking structure or 3-dimensional multi-layered orthohormbic structure.3-dimensional multi-layered Angular interlocking structure passes through including multilayer
Wear angle interlocking, the interlocking of multilayer interlayer angle and the multilayer angle interlocking with laying-in, inlaid thread.The number of plies of 3-dimensional multi-layered tissue is no less than two
Layer.
Intermediate layer 3 forms three-dimensional hollow structure by the vertical warp 4 of connection first layer 1 and the second layer 2；Hang down warp 4 respectively with
First weft yarn 1-2 and the second weft yarn 2-2 interweaves, first layer 1, the second layer 2 and intermediate layer 3 are made into three-dimensional overall structure.
The first layer 1 of the present embodiment be formed with multiple length and widths >=3mm grid hole.The thickness of the fabric be 5~
40mm。
The warp 4 that hangs down can be vertical warp or the warp of other angle tilts, such as Fig. 3, Fig. 4 and Fig. 5 institute
Show, the warp 4 that hangs down is connected with first layer 1 and the second layer 2 respectively with the one or more therein such as V-arrangement, X-shaped, I shapes, S-shaped or the degree of lip-rounding
Connect.
The vertical warp 4 of the present embodiment is a kind of monofilament long fibre yarn, a kind of monofilament long fibre as support yarn and one kind
A kind of or yarn that yarn, thinner fiber yarn or a variety of thinner fibers of a variety of thinner fiber compositions form.
Thinner silvalin is using glass fibre, basalt fibre, carbon fiber, etc..When using superfine fibre and inorganic
During the vertical warp 4 of fiber composition, there is following advantage：1）Inorfil and concrete substrate interfacial bonding property are than organic fiber more
It is good, therefore greatly improve the overall performance of fabric enhancing coagulation body；2）Superfine fibre specific surface area is bigger, with concrete substrate
Combination interface is bigger, therefore combination is more firm, and performance is more preferable.
The kinds of fibers of warp thread of the present invention, weft yarn and vertical warp 4 is：Various animal and plant fibers for example cotton, fiber crops,
Hair, silk etc., various synthetic fibers are such as：Polyethylene, terylene, polyamide fibre, acrylic fibers, nylon, polyvinyl, polypropylene fibre, spandex, polyvinyl chloride fibre etc., it is various
Inorfil is such as：Glass fibre, quartz glass fibre, boron fibre, ceramic fibre, metallic fiber, basalt fibre, steel fibre
Deng various high-performance fibers are such as：The one or more of which of carbon fiber, aramid fiber, superhigh molecular weight polyethylene fibers, PBO, PI etc.
Mix weaving.
The present invention's is not limited to above-described embodiment, such as：Every vertical warp 4 respectively with least three first weft yarns and extremely
Few three second weft yarns are interleaved.All technical schemes formed using equivalent substitution, all fall within the protection model of application claims
Enclose.
Claims (9)
1. a kind of 3-dimensional multi-layered-doughnut enhancing fabric, including first layer, the second layer and positioned at the first layer and the second layer
Between intermediate layer；The first layer forms two dimensional tissues by the first warp thread and the first weft yarns；The second layer is by second
Warp thread and the second weft yarns form 3-dimensional multi-layered tissue；It is characterized in that：The intermediate layer is by connecting the first layer and the
Two layers of vertical warp forms three-dimensional hollow structure；The vertical warp respectively with first weft yarn and the second weft yarns, to
The first layer, the second layer and intermediate layer are made into three-dimensional overall structure.
2. 3-dimensional multi-layered according to claim 1-doughnut enhancing fabric, it is characterised in that：Two dimensional tissue be by
Interweave with being formed according to three foundation weave or its alternative construction, the 3-dimensional multi-layered tissue is according to 3-dimensional multi-layered Angular interlocking structure or three-dimensional
Multilayer orthogonal structure interweaves with being formed.
3. 3-dimensional multi-layered according to claim 2-doughnut enhancing fabric, it is characterised in that：The three foundation weave is flat
Line, twill or satin weave, the alternative construction are the combination alternative constructions of plain weave, twill or satin weave.
4. 3-dimensional multi-layered according to claim 2-doughnut enhancing fabric, it is characterised in that：The 3-dimensional multi-layered angle connection
The multilayer that lock construction includes runs through angle interlocking, the interlocking of multilayer interlayer angle and the multilayer angle interlocking with laying-in, inlaid thread, described 3-dimensional multi-layered
The number of plies of tissue is no less than two layers.
5. fabric is strengthened according to any 3-dimensional multi-layered-doughnut of Claims 1-4, it is characterised in that：Described first
Layer be formed with multiple length and widths >=3mm grid hole.
6. fabric is strengthened according to any 3-dimensional multi-layered-doughnut of Claims 1-4, it is characterised in that：The vertical warp
Line is a kind of monofilament long fibre yarn, a kind of monofilament long fibre as support yarn and the yarn of one or more thinner fiber compositions
The yarn of line, a kind of thinner fiber yarn or a variety of thinner fiber compositions.
7. fabric is strengthened according to any 3-dimensional multi-layered-doughnut of Claims 1-4, it is characterised in that：The every warp that hangs down
Line respectively with least three first weft yarns and at least three second weft yarns are interleaved.
8. fabric is strengthened according to any 3-dimensional multi-layered-doughnut of Claims 1-4, it is characterised in that：The vertical warp
Line is connected with first layer and the second layer respectively with V-arrangement, X-shaped, I shapes, S-shaped or degree of lip-rounding one or more therein.
9. fabric is strengthened according to any 3-dimensional multi-layered-doughnut of Claims 1-4, it is characterised in that：The fabric
Thickness is 5~40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710988506.1A CN107723878A (en) | 2017-10-21 | 2017-10-21 | 3-dimensional multi-layered doughnut strengthens fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710988506.1A CN107723878A (en) | 2017-10-21 | 2017-10-21 | 3-dimensional multi-layered doughnut strengthens fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107723878A true CN107723878A (en) | 2018-02-23 |
Family
ID=61212366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710988506.1A Pending CN107723878A (en) | 2017-10-21 | 2017-10-21 | 3-dimensional multi-layered doughnut strengthens fabric |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107723878A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109957870A (en) * | 2019-04-28 | 2019-07-02 | 吉林大学 | A kind of preparation method of fibrous material and fibrous composite |
| CN111058142A (en) * | 2019-11-15 | 2020-04-24 | 南京玻璃纤维研究设计院有限公司 | Three-dimensional sandwich structure fabric and weaving method thereof |
| CN112725985A (en) * | 2020-12-28 | 2021-04-30 | 南京玻璃纤维研究设计院有限公司 | Variable-density three-dimensional fabric and weaving method thereof |
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| CN111058142A (en) * | 2019-11-15 | 2020-04-24 | 南京玻璃纤维研究设计院有限公司 | Three-dimensional sandwich structure fabric and weaving method thereof |
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| CN112725985A (en) * | 2020-12-28 | 2021-04-30 | 南京玻璃纤维研究设计院有限公司 | Variable-density three-dimensional fabric and weaving method thereof |
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Application publication date: 20180223 |