CN201713642U

CN201713642U - Integral laminate porous fabric

Info

Publication number: CN201713642U
Application number: CN201020223256.6U
Authority: CN
Inventors: 张艳红; 匡宁; 郑云; 邹清
Original assignee: Sinoma Science and Technology Co Ltd
Current assignee: Nanjing Fiberglass Research and Design Institute Co Ltd
Priority date: 2010-06-11
Filing date: 2010-06-11
Publication date: 2011-01-19
Anticipated expiration: 2020-06-11

Abstract

Provided is an integral laminate porous fabric, comprising an upper layer (10) interwoven by a first upper layer body warp (1), a second upper layer body warp (2) and an upper layer weft (3); a lower layer (11) interwoven by a first lower layer body warp (4), a second lower layer body warp (5) and a lower layer weft (6). The utility model is characterized in that the fabric consists of at least one layer of the upper and lower layer; a laminate layer is interwoven by a first pile warp (7), a second pile warp (8) and a laminate weft; the laminate layer is interwoven with the upper layer weft (3) and the lower layer weft (6). The utility model is advantageous in that the fabric has strong designability and is suitable for mass weaving; compared with common laminate fabric, the volume content of weft is obviously increased, thus the broadwise strength and modulus of the fabric is effectively improved; as the channel of laminate layer is clearer, the functional development of pre-embedding and filling is facilitated; the nondestructive detection and maintenance is more convenient; the fabric can be widely applied in areas like track traffic, enhanced marble and double layer storage tank.

Description

A kind of integral sandwiched porous fabric

Technical field

The utility model relates to a kind of integral sandwiched porous fabric, belongs to extraordinary woven fabric structure technical field.

Technical background

The a large amount of cores that use of industrial circle are mainly based on rigid foam, honeycomb and cork wood at present.But traditional core filled composite material is generally two blocks of composites strengthens panel and the lower bonding formation of core of density, interface cementing strength between panel and core is lower, the interlayer poor-performing, under external load function, especially after being impacted, as instrument fall, rubble, hail, bump etc., panel and core can produce layering, make mechanical property descend comprehensively, very easily cause structural deterioration; In addition, under the hygrothermal environment condition, water logging can take place, cause phenomenons such as panel foaming, make that detection and maintenance are more frequent, thereby influence quality of item and cost; Common core is in order to increase the interfacial adhesion strength of material, used all kinds of high-performance adhesion agents, the adhesion groove be set on core, perforate, sewing process be surface layer and modes such as sandwich layer is connected, increase material design and development difficulty, when having strengthened product cost and preparation efficiency, still there are many material serviceabilities to require to be difficult to fundamentally solve.In recent years, in order to solve the shortcoming of the easy layering of core filled composite material, poor mechanical property, developed both at home and abroad the three-dimensional hollow layer connecting fabric that adopts three-dimensional woven or knitting to be shaped (200610038306.1 etc.) successively, this type of sandwich fabric is once formed fabric by three-dimensional woven or knitting by high-performance fiber (glass fibre, carbon fiber, aramid fiber etc.) two-layer panel up and down be connected sandwich layer, this kind fabric has good whole structure, excellent comprehensive performance, splendid designability and is rapidly developed.But this type of sandwich fabric generally all is to be shaped by connecting fiber (sandwich layer), fiber is in free state in the sandwich layer class, the planarization that how to guarantee compound back core has high requirement to fabric manufacture equipment and technology, causes the price of developing this type of sandwich fabric device very high and weaving efficiency is not high; Because sandwich layer connect to be shaped by fiber, sandwich layer is difficult to satisfy harsh performance requirements such as the resistance to compression, shearing resistance, shock resistance of high-performance composite materials, has influenced applying of this type of material; Such sandwich fabric hands that adopt in recombination process are stuck with paste or the mold closing technological forming more; need to connect the fiber design height of under the dipping effect of resin, standing automatically; when the fabric height surpasses 10mm; often be difficult to reach automatically design height; needing auxiliary process to carry out the back typing handles; cause the loaded down with trivial details of compound working procedure, be difficult to form in enormous quantities, large-scale production continuously.

The utility model content

The easy layering of common sandwich material that the technical problems to be solved in the utility model one is, poor mechanical property, be difficult for the shortcoming of processing, the 2nd, hollow layer sort out and classify fabric face layer connect by fiber cause the manufacturing expense height, yield poorly, mechanical property has limitation, be difficult for the problem of continuous composite molding.

Comprise the last aspect that interweaves and form by the first upper strata body warp, the second upper strata body warp and upper strata side shutes, the subsurface that interweaves and form by first lower floor's body warp, second lower floor's body warp and subsurface weft yarn, upper and lower aspect all has one deck at least, first suede through, second suede through with the laminboard layer weft yarn formation laminboard layer that interweaves, it is characterized in that first suede warp, second suede are through except the weft yarn with laminboard layer interweaves, also interweave, form a kind of continuous integral sandwiched porous construction fabric with upper strata side shutes, following surface layer weft yarn.

The utility model fabric on each aspect or subsurface individual layer weave thickness range between 0.1-3mm, can realize the increase of fabric thickness by the mode that increases the upper and lower aspect number of plies, reach the purpose that integral body thickened, reduced the shop hierachy number.

Laminboard layer between the upper and lower surface layer of the utility model is to be interweaved with a laminboard layer weft yarn by two suedes warps, forms the skeleton of two dimensional fabrics as laminboard layer.Altitude range between upper and lower two aspects is at 1-50mm.

Altitude range between upper and lower two aspects exists: 1-50mm.

The shape of the utility model fabric laminboard layer can be designed to corrugated (W shape), X-shaped etc. according to the instructions for use of composite.

The utility model can adopt single high-performance continuous fibers to weave, and also can adopt multiple high-performance fiber to mix and knit, for example: high strength fibres such as glass, boron, carbon and aromatic polyamides material; Even can adopt organic fibers such as polyester, polypropylene, polyacrylonitrile or polyamide.The fiber material can adopt forms such as rove, sub-thread spun yarn or multiply spun yarn.

The utility model adopts the woven method of three-dimension integrally, with upper layer, surface layer, the whole connection of laminboard layer down, has effectively avoided lamination problem; In addition, fabric laminboard layer of the present utility model adopts the form of fiber interweaving to be shaped, and can significantly improve sandwich layer intensity and rigidity, fabric laminboard layer height is accurately finalized the design and the size and the position in core hole, unit; Introduce many weft yarns by strengthening, can effectively improve the bulk strength of grain cross, reach a kind of unidirectional core filled composite material and strengthen effect along broadwise; Fabric of the present utility model can form ultralight structural material material through resin compounded, can satisfy great majority carryings and strong, the high specific stiffness of height ratio that has, and, functions such as heat insulation, energy-absorbing, noise reduction, sound insulation.Fields such as the sandwiched porous fabric with the utility model exploitation can be widely used in Aeronautics and Astronautics, building, chemical industry, wind-powered electricity generation, transportation, pack have market application foreground extremely widely.

The utlity model has strong, the suitable woven advantage of scale of designability.

Description of drawings

Fig. 1 is a typical space structural representation of the present utility model (waveform);

Fig. 2 is the space structure schematic diagram of the utility model laminboard layer form for " X " font;

Fig. 3 is the schematic diagram of aspect thickening time space structure on the utility model;

The specific embodiment

Embodiment 1:

Referring to accompanying drawing 1, present embodiment comprises the last aspect 10 that is interweaved and formed by the first upper strata body warp 1, the second upper strata body warp 2 and upper strata side shutes 3, by the subsurface 11 that first lower floor's body warp 4, second lower floor's body warp 5 and subsurface weft yarn 6 interweave and form, upper and lower aspect is one deck.First suede through 7, second suede through 8 at first interweave with subsurface weft yarn 6 after, many laminboard layer weft yarns 9 to upper right side and undulate distribution interweave successively, after interweaving with the laminboard layer weft yarn 9 that is positioned at wave crest, weft yarn 3 with last aspect interweaves again, reverse end for end then to interweave with laminboard layer weft yarn 9 successively again to the lower right, to trough, interweave with subsurface weft yarn 6 again, according to this circulation.

Embodiment 2

Referring to Fig. 2, the last aspect of present embodiment is also identical with embodiment 1 with subsurface.Different is that the laminboard layer weft yarn is divided into two groups, is respectively laminboard layer weft yarn 9 and laminboard layer weft yarn 9 ', is " X " font and distributes.Relative, the first suede warp and second suede are through also being divided into two groups.First group of first suede at first interweaves with subsurface weft yarn 6 through 8 through 7 and second suede, interweaves with first group of laminboard layer weft yarn 9 successively to the upper right side then, and last and upper strata side shutes 3 interweaves.Second group of first suede at first interweaves with upper strata side shutes 3 through 8 ' through 7 ' and second suede, interweaves with second group of laminboard layer weft yarn 9 ' successively to the lower right then, and last and subsurface weft yarn 6 interweaves.The plain cloth of bidimensional that finally forms " X " form between subsurface and subsurface is as fabric therebetween sandwich layer skeleton.

Embodiment 3

The subsurface of present embodiment and laminboard layer are identical with embodiment 1, and different is that the weft yarn 3 of going up aspect has two groups, and two groups of weft yarns 3 are arranged in parallel from top to bottom.The first upper strata body warp 1, the second upper strata body warp 2 interweave with two groups of upper strata side shutes 3 simultaneously, thereby form the last aspect by the two-layer thickening of forming, and the group number of the first upper strata side shutes is many more, and the thickness of last aspect is just thick more.

Except that the scheme shown in the present embodiment, can also realize the increase of subsurface thickness by the group number that increases the subsurface weft yarn.

Claims

1. integral sandwiched porous fabric, comprise by the first upper strata body warp (1), the last aspect (10) that the second upper strata body warp (2) and upper strata side shutes (3) interweave and form, by first lower floor's body warp (4), the subsurface (11) that second lower floor's body warp (5) and subsurface weft yarn (6) interweave and form, on, subsurface all has one deck at least, first suede is through (7), second suede is through (8) and laminboard layer weft yarn (9) the formation laminboard layer that interweaves, it is characterized in that first suede is through (7), second suede warp (8) is except the weft yarn (9) with laminboard layer interweaves, also with upper strata side shutes (3), following surface layer weft yarn (6) interweaves.

2. integral sandwiched porous fabric according to claim 1 is characterized in that the altitude range between upper and lower two aspects exists: 1-50mm.

3. integral sandwiched porous fabric according to claim 1, the thickness in monolayer scope that it is characterized in that upper and lower aspect is 0.1-3mm.

4. integral sandwiched porous fabric according to claim 1 is characterized in that the corrugated or X-shaped of being shaped as of laminboard layer.

5. integral sandwiched porous fabric according to claim 1 is characterized in that adopting single high-performance continuous fibers to weave or adopt multiple high-performance continuous fibers to mix and knit.