CN209904144U - Grid cloth core composite material - Google Patents
Grid cloth core composite material Download PDFInfo
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- CN209904144U CN209904144U CN201822023390.0U CN201822023390U CN209904144U CN 209904144 U CN209904144 U CN 209904144U CN 201822023390 U CN201822023390 U CN 201822023390U CN 209904144 U CN209904144 U CN 209904144U
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Abstract
The utility model provides a net cloth core combined material, including the core, the at least one side of core is equipped with back up coat and fluting, the back up coat is net cloth, it has a plurality of net holes to distribute on the net cloth, the aperture size of net hole is the same or different, net cloth adopts many cellosilks to weave and forms, the cellosilk is compound skin core structure, the cellosilk includes the sandwich layer, the outer parcel of sandwich layer has the skin, many cellosilks include first warp, the second warp, first warp and the warp parallel arrangement of second, weft sets up between first warp and second warp, first warp and second warp are the S-shaped and set up around weft song back respectively. At least one side of core material is equipped with back up coat and fluting, and the fluting makes the core material furthest promote the flow of vacuum infusion in-process resin, improves bulk strength, for preventing the board fracture or the piece that looses after the fluting, uses the back up coat to fix, strengthens the cohesion, and the adhesion is strong, has improved holistic intensity, guarantees intensity and cohesiveness promptly, and the practicality is stronger.
Description
Technical Field
The utility model belongs to the technical field of combined material, a net cloth core combined material is related to.
Background
The shell member and the web of the wind power blade, the cabin cover and the like all use light wood plates or closed-cell foamed plastic plates as core layers of the glass fiber reinforced plastic sandwich structure, and the wind power blade has the main functions of reducing the weight of the blade, improving the wind catching capacity and increasing the wind catching area on the premise of ensuring that the blade meets the rigidity requirement and is stable to use. Balsawood is balsawood grown with ermelon, and the foam is currently commonly used polyvinyl chloride foam (PVC), polystyrene foam (PS), polyethylene terephthalate foam (PET), acrylonitrile-styrene foam (SAN), and the like. In order to facilitate the resin flow, the core material is enabled to absorb the vacuum infusion resin to the maximum extent, the overall strength is improved, the plate needs to be grooved and perforated, but the plate after grooving and perforating is easy to break or loose.
The utility model discloses a patent application number is 201720655261's utility model discloses a press from both sides core combined material, including core layer and the skin panel layer that sets up respectively in core layer both sides, skin panel layer includes fibre preimpregnation layer and fibre fabric layer, and the both sides setting on the core layer is tightly pasted to the fibre preimpregnation layer, and the fibre fabric layer sets up in the fibre preimpregnation layer outside, and skin panel layer and core layer are through forming the core combined material with the resin system is compound. The utility model discloses a press from both sides core combined material, fibre prepreg layer can be docile lay on core material layer and fibre fabric layer, especially jumbo size, big thickness, the shape is complicated, the high performance of many curved surfaces presss from both sides core combined material, but this patent does not solve the flow of core layer resin when vacuum is poured.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art not enough, the utility model provides a net cloth core combined material, the at least one side of core is equipped with back up coat and fluting, and furthest's promotion vacuum fills the flow of in-process resin, improves bulk strength, for prevent board fracture or the piece that looses after the fluting, uses the back up coat to fix, reinforcing cohesion, the cohesive force is strong to holistic intensity has been improved, assurance strength and cohesiveness promptly, the practicality is stronger.
The utility model provides a following technical scheme:
the utility model provides a net cloth core combined material, includes the core, and the one side of core is equipped with the back up coat, and the another side is equipped with the fluting, the back up coat is net cloth, and it has a plurality of net holes to distribute on the net cloth, and the aperture size of net hole is the same or different, and net cloth adopts many cellosilks to weave and forms, and the cellosilk is compound skin core structure, and the cellosilk includes the sandwich layer, and the outer parcel of sandwich layer has the skin, and many cellosilks include first warp, second warp, first warp and second warp parallel arrangement, and weft setting is between first warp and second warp, and first warp and second warp are S-shaped and set up around weft meander respectively.
Preferably, the distance between the adjacent slots is 2-10 cm.
In any of the above aspects, preferably, the outer layer is a low melting point thermal fuse.
In any of the above schemes, preferably, the core layer is made of high-strength yarn, and the core layer is made of any one of polypropylene fiber, polyester fiber, nylon, acrylic fiber and spandex.
In any of the above aspects, preferably, the mesh holes are at least one of circular, triangular, quadrangular and polygonal.
In any of the above embodiments, preferably, the area of the single hole of the mesh hole is 1mm2～10mm2。
In any of the above embodiments, preferably, the area of the single hole of the mesh hole is 1mm2。
In any of the above aspects, preferably, the single aperture area of the mesh aperture is 5mm2。
In any of the above aspects, preferably, the single aperture area of the mesh aperture is 10mm2。
In any of the above embodiments, the net cloth preferably has a basis weight of 20 to 150g/m2。
In any of the above embodiments, the net cloth preferably has a grammage per unit area of 20g/m2。
In any of the above embodiments, preferably, the net cloth has a grammage of 80g/m2。
In any of the above embodiments, preferably, the net cloth has a grammage per unit area of 150g/m2。
In any of the above embodiments, the mesh cloth preferably has a thickness of 1mm to 6 mm.
In any of the above aspects, preferably, the thickness of the mesh cloth is 1 mm.
In any of the above aspects, preferably, the thickness of the mesh cloth is 4 mm.
In any of the above aspects, preferably, the thickness of the mesh cloth is 6 mm.
In any of the above aspects, preferably, the core material is at least one of balsa wood or a foam board.
In any of the above aspects, preferably, the balsawood is balsawood.
In any of the above embodiments, preferably, the foam sheet is any one of polyvinyl chloride foam, polystyrene foam, polyethylene terephthalate foam, and acrylonitrile-styrene foam.
In any of the above aspects, preferably, the foam sheet has a thickness of 10mm to 200 mm.
In any of the above aspects, it is preferred that the foam sheet has a thickness of 10 mm.
In any of the above aspects, it is preferred that the foam sheet has a thickness of 100 mm.
In any of the above aspects, it is preferred that the foam sheet has a thickness of 200 mm.
In any of the above aspects, preferably, the foam board has a density of 80g/m3～200g/m3。
In any of the above aspects, preferably, the foam board has a density of 80g/m3。
In any of the above aspects, preferably, the density of the foam board is 100g/m3。
In any of the above aspects, preferably, the foam board has a density of 200g/m3。
In any of the above aspects, preferably, the slot recess is arranged in the core material, the opening of the slot extends to the surface of the core material, and the slot is at least one of a circular slot shape, a square shape and a triangular shape
Advantageous effects
The utility model provides a net cloth core combined material, including the core, the at least one side of core is equipped with back up coat and fluting, the back up coat is net cloth, and it has a plurality of net holes to distribute on the net cloth, and the aperture size of net hole is the same or different, and net cloth adopts many cellosilks to weave and forms, and the cellosilk is compound skin core structure, and the cellosilk includes the sandwich layer, and the outer parcel of sandwich layer has the skin, and many cellosilks include first warp, second warp, first warp and second warp parallel arrangement, and weft setting is between first warp and second warp, and first warp and second warp are S-shaped and set up around weft meander respectively. At least one side of core material is equipped with back up coat and fluting, and the fluting makes core material furthest's absorption vacuum infusion resin, improves the bulk strength, in order to prevent board fracture or loose piece after the fluting, uses the back up coat to fix, strengthens the cohesion, and the adhesion is strong to improve holistic intensity, guaranteed intensity and cohesiveness promptly, the practicality is stronger.
Drawings
Fig. 1 is a cross-sectional view of the overall structure of a preferred embodiment of a scrim core composite of the present invention;
fig. 2 is a cross-sectional view of another preferred embodiment of the mesh fabric core composite of the present invention in overall configuration;
FIG. 3 is a cross-sectional view of the overall structure of yet another preferred embodiment of a scrim core composite of the present invention;
FIG. 4 is a cross-sectional view of the overall structure of yet another preferred embodiment of a scrim core composite of the present invention;
fig. 5 is a cross-sectional view of a fiber structure of a mesh fabric core composite material of the present invention;
fig. 6 is a cross-sectional view of the mesh fabric structure of the composite material of the mesh fabric core material of the present invention.
Detailed Description
In order to further understand the technical features of the present invention, the present invention will be described in detail with reference to the specific embodiments. The embodiments are only used as examples, and do not have any restrictive function, and any insubstantial modifications made by those skilled in the art based on the present invention shall fall within the scope of the present invention.
Example 1
A grid cloth core composite material comprises a core material 1, wherein one surface of the core material 1 is provided with a reinforcing layer 2, the other surface of the core material 1 is provided with a plurality of grooves 3, the grooves 3 can be arranged in a plurality of strips, the spaces between every two adjacent grooves 3 are 5cm, the grooves 3 can be arranged in the core material 1 in a concave manner such as a circular groove shape, a square shape, a triangular shape and the like, the structure is shown in figures 1-4, and the openings of the grooves 3 extend to the surface of the core material 1, so that the core material 1 can absorb vacuum infusion resin to the maximum extent, and the overall strength is.
The reinforcing layer 2 is a grid cloth, a plurality of grid holes 21 are distributed on the grid cloth, and the pore sizes of the grid holes 21 are the same or different. The mesh cloth has the main function that the core material 1 is not easy to break and break after the open groove 3 is arranged, so that the strength and the cohesiveness are ensured, and the recovery is convenient.
The mesh cloth is formed by weaving a plurality of fiber yarns 4, the fiber yarns 4 are of a composite skin-core structure, a core layer 41 is arranged inside the fiber yarns 4, and an outer layer 42 wraps the core layer 41, as shown in fig. 5. The core layer 41 is made of high-strength yarn, and the core layer 41 is made of any one of polypropylene fiber, polyester fiber, chinlon, acrylic fiber and spandex. The outer layer 42 is a low melt thermal fuse.
The fiber silk net cloth that this application used 4 wove of cellosilk to weave replaces the glass fiber net cloth in the traditional meaning. The utility model provides a net cloth weaves need not the gumming after accomplishing, only needs to adopt the hot-pressing roller to press and scald to make net cloth hot melt fix on core plate surface. In the prior art, the traditional glass fiber mesh fabric is woven by using glass fibers, has the defects of brittleness, easy breakage, heavy weight, difficult recovery and the like, and in a vacuum infusion system, in order to ensure that the mesh fabric can be well bonded with a core material, the glass fiber mesh fabric also needs to be subjected to processes of gum dipping, finishing, curing, shaping, cutting and the like, so that the process is complex.
Specifically, many cellosilks 4 include first warp 5, second warp 6, first warp 5 and the parallel arrangement of second warp 6, and weft 7 sets up between first warp 5 and second warp 6, and first warp 5 and second warp 6 are S-shaped and wind weft 7 zigzag respectively and set up.
As shown in fig. 6, the weft 7 is first crossed between the two first warp threads 5 and the second warp threads 6, then the two first warp threads 5 and the second warp threads 6 are interwoven, the second weft thread 7 is penetrated, and the two first warp threads 5 and the second warp threads 6 are interwoven again, so that the weft 7 is fixed between the first warp threads 5 and the second warp threads 6. In the cross-knitting process, the first warp 5 always moves upwards, and the second warp 6 always moves downwards.
The single aperture area of the mesh aperture 21 is 5mm 2. The gram weight per unit area of the mesh fabric was 80g/m 2. The thickness of the mesh cloth is 3 mm.
The core material 1 is made of balsa wood or foam board. The balsawood is balsawood. The foam board types may be polyvinyl chloride foam (PVC), polystyrene foam (PS), polyethylene terephthalate foam (PET), and acrylonitrile-styrene foam (SAN). The thickness of the foam board is 10 mm-200 mm. The density of the foam board is 80g/m3～200g/m3。
Example 2
A composite material of a mesh cloth core material is different from the composite material of the embodiment 1 in that the mesh holes 21 are at least one of circular, triangular, quadrangular and polygonal.
Example 3
A composite material of a mesh cloth core material, which is different from the embodiment 1, wherein the single hole area of the mesh holes 21 is 1mm2。
Example 4
A composite material of a mesh cloth core material, which is different from the embodiment 1, wherein the single hole area of the mesh holes 21 is 8mm2。
Example 5
A composite material of a mesh cloth core material, which is different from the embodiment 1, wherein the single hole area of the mesh holes 21 is 10mm2。
Example 6
A mesh fabric core composite material, different from the embodiment 1, the unit area gram weight of the mesh fabric is 20g/m2。
Example 7
A mesh fabric core composite material, different from the embodiment 1, the unit area gram weight of the mesh fabric is 150g/m2。
Example 8
A scrim core composite, in contrast to example 6, the scrim had a thickness of 1 mm.
Example 9
A scrim core composite, in contrast to example 1, the scrim had a thickness of 6 mm.
Example 10
A scrim core composite material, differing from example 1 in that the spacing between adjacent slots 3 was 2 cm.
Example 11
A scrim core composite material, differing from example 1 in that the spacing between adjacent slots 3 was 10 cm.
Claims (11)
1. A kind of net cloth core composite material, characterized by that: including core (1), the one side of core (1) is equipped with back up coat (2), the another side is equipped with fluting (3), back up coat (2) are net cloth, it has a plurality of net holes (21) to distribute on the net cloth, the aperture size of net hole (21) is the same or different, net cloth adopts many cellosilks (4) to weave and forms, cellosilk (4) are compound skin core structure, cellosilk (4) include sandwich layer (41), the outer parcel of sandwich layer (41) has outer (42), many cellosilks (4) are including first warp (5), second warp (6), first warp (5) and second warp (6) parallel arrangement, weft (7) set up between first warp (5) and second warp (6), first warp (5) and second warp (6) are the S-shaped and set up around weft (7) respectively.
2. A scrim core composite according to claim 1, wherein: the distance between the adjacent slots (3) is 2-10 cm.
3. A scrim core composite according to claim 1, wherein: the core layer (41) is made of high-strength silk, and the core layer (41) is made of any one of polypropylene fiber, polyester fiber, chinlon, acrylic fiber and spandex.
4. A scrim core composite according to claim 1, wherein: the grid holes (21) are polygonal.
5. A scrim core composite according to claim 1, wherein: the grid holes (21) are circular, triangular or quadrilateral.
6. A scrim core composite according to claim 1, wherein: the area of a single hole of the grid hole (21) is 1mm2～10mm2。
7. A scrim core composite according to claim 1, wherein: the gram weight per unit area of the mesh cloth is 20-150 g/m2。
8. A scrim core composite according to claim 1, wherein: the thickness of the mesh cloth is 1 mm-6 mm.
9. A scrim core composite according to claim 1, wherein: the core material (1) is at least one of balsa wood or a foam board.
10. A scrim core composite according to claim 9, wherein: the foam board is any one of polyvinyl chloride foam, polystyrene foam, polyethylene terephthalate foam and acrylonitrile-styrene foam.
11. A scrim core composite according to claim 1, wherein: the grooving (3) is arranged in the core material (1) in a recessed mode, an opening of the grooving (3) extends to the surface of the core material (1), and the grooving (3) is at least one of a circular groove shape, a square shape and a triangular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822023390.0U CN209904144U (en) | 2018-12-04 | 2018-12-04 | Grid cloth core composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822023390.0U CN209904144U (en) | 2018-12-04 | 2018-12-04 | Grid cloth core composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209904144U true CN209904144U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822023390.0U Active CN209904144U (en) | 2018-12-04 | 2018-12-04 | Grid cloth core composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209904144U (en) |
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2018
- 2018-12-04 CN CN201822023390.0U patent/CN209904144U/en active Active
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