CN102427714B - Suction wave plate material of a kind of carbon fiber endless tows in grid-shaped arrangement and preparation method thereof - Google Patents
Suction wave plate material of a kind of carbon fiber endless tows in grid-shaped arrangement and preparation method thereof Download PDFInfo
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- CN102427714B CN102427714B CN201110288295.3A CN201110288295A CN102427714B CN 102427714 B CN102427714 B CN 102427714B CN 201110288295 A CN201110288295 A CN 201110288295A CN 102427714 B CN102427714 B CN 102427714B
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Abstract
Suction wave plate material that the present invention relates to a kind of carbon fiber endless tows in grid-shaped arrangement and preparation method thereof.The suction wave plate material of described carbon fiber endless tows in grid-shaped arrangement, comprise at least one deck and inhale wave plate, it is characterized in that, described suction wave plate comprises the carbon fiber filament bundle of base material and grid-like arrangement.Its preparation method, comprise: tile carbon fiber filament bundle at least one high polymer foamed sheet, carbon fiber filament bundle is grid-like arrangement, by in carbon fiber filament bundle press-in high polymer foamed sheet, form single layer structure or through laminated formation sandwich construction, have the exposed surface of carbon fiber filament bundle to do sealing process to press-in.Practical and the environmental protection of the present invention, structural adjustment is flexible and various, and absorbing property is excellent and stable, can be used for the lining material of anti-electromalgnetic radiation clothes and light structure building materials and ornament materials.
Description
Technical field
Suction wave plate material that the present invention relates to a kind of carbon fiber endless tows in grid-shaped arrangement and preparation method thereof, for shielding electromagnetic wave.
Background technology
The effective means of anti-electromagnetic radiation be material to shielding electromagnetic waves and absorption, carbon fiber is used as clothes shielding material and rarely has report, only because its spinnability, wearing comfort and anti-wear performance are poor; And carbon fiber is as the part of composite material, while being widely used as structural reinforcement material, the absorbing property that carbon fiber and carbon nanomaterial mix composite material as component also has discussion, the domestic and international patent of invention about absorbing material mostly is the composite material that carbon fiber directly mixes, or the composite material of rigidity single or multiple lift.As patent UMISHITA, the EP 1912487A1 (2008) of Kazunori etc. using ultrafine carbon fiber as negative magnetoresistance material with the ratio filled composite materials of 0.1% ~ 20%, result carbon fiber lay thickness 0.105mm, when frequency is 5GHz, reaches-13dB to electromagnetic pad value; When carbon fiber or carbon nano-fiber with stepped construction lay thickness for 0.8mm, when frequency is 2.1GHz, reach-20 ~-29dB to electromagnetic decay, when lay thickness reaches 9mm, it has the decay of-20 ~-35dB under 60GHz.These are all the methods of random, the Homogeneous phase mixing lapping of carbon short fiber, different from preparation principle of the present invention.
Common carbon filament bundle arranges the part as material in a special manner, as parallel, grid etc. also has report, but mostly as reinforcing material.US 7882776B2 (2007) as patent Roger Terence etc. invent for resisting high damaging impact, strip as the vehicles shell of bomb etc. is armoring, this kind of armoring major part forms cell structure for carbon filament bundle (length is 0.01m ~ 0.1m), or horizontal direction carbon fiber, vertical direction aluminum metallic material, its area density is 20kg/m
2time, effectively can resist grenade and impact.The hybrid fabric grid made from carbon fiber and basalt fiber that the patent CN101666137A (2009) of Gao Jianping invents, uses it to be layed in concrete, obviously improves concrete tensile strength and shock resistance and ductility.A kind of basalt fiber and carbon fiber compound geogrid with electric heating function that similar patent has the CN 101701445A (2008) of Sun Mingqing to invent, not only there is structural re-enforcement, also have the characteristic of electrocaloric effect, can be used for the deicing or snow melting of concrete road surface, airfield runway.Also has a kind of therapeutic bed being used for accurately locating radiation-therapy that the US 5537454 (1994) of patent Clayton P. Korver etc. invents, innovation is than traditional treatment bed, they are many one can be movable carbon fiber grille plate, it also can do supporting role simultaneously, masks the electromagnetic radiation without the need to site of action.These patents are mainly as the preparation of enhanced grid and the purposes of enhancing, so carbon fiber more much thicker, crosspoints bonding is more stable better.This adjusts absorbing property and different with or without intersecting the insignificant preparation method that bonds from of the present invention with array structure, and purposes is different.
Summary of the invention
First object of the present invention is to provide a kind of suction wave plate material of carbon fiber endless tows in grid-shaped arrangement, and it can be adapted to electromagnetic wave shielding and the absorption of broad frequency band, and with less carbon fiber consumption, can reach higher electromagnetic wave shielding efficiency.
Second object of the present invention is to provide the preparation method of the suction wave plate material of above-mentioned carbon fiber endless tows in grid-shaped arrangement, it can adopt lightweight high polymer foamed sheet come interval and support carbon filament bundle, form the composite wave-absorbing sheet material of the single or multiple lift structure of stable grid-like arrangement, avoid carbon fiber in grid arrangement is shaped and damage in actual use and distortion simultaneously.
In order to achieve the above object, the invention provides a kind of suction wave plate material of carbon fiber endless tows in grid-shaped arrangement, comprise at least one deck and inhale wave plate, it is characterized in that, described suction wave plate comprises the carbon fiber filament bundle of base material and grid-like arrangement.
Preferably, the carbon fiber filament bundle row of described grid-like arrangement is layered at least one side of base material.
Preferably, the described grid-like arrangement of parallel grid shape, orthogonal grid-like arrangement or the diamond-plaid palisade of being arranged as arranges.
Preferably, described base material is high polymer foamed sheet, is preferably polystyrene (PS) foamed sheet, polypropylene (PP) foamed sheet or polyvinyl chloride (PVC) foamed sheet.It is used as supporter and the partitioned arrangement of carbon filament bundle.
Present invention also offers the preparation method of the suction wave plate material of above-mentioned carbon fiber endless tows in grid-shaped arrangement, it is characterized in that, comprise: tile carbon fiber filament bundle at least one base material, carbon fiber filament bundle is grid-like arrangement, by in carbon fiber filament bundle press-in base material, form single layer structure or through laminated formation sandwich construction, have the exposed surface of carbon fiber filament bundle to do sealing process to press-in.
Preferably, described carbon fiber filament bundle is through rounding and form stable preliminary treatment.Described rounding and form stable preliminary treatment are twisting, impregnation starching or directly scrape slurry, or twisting and impregnation starching or directly scrape the combination of slurry.To make carbon filament bundle rounding and morphosis stablize, ensure carbon fiber be pressed in high polymer foamed sheet can keep its Stability Analysis of Structures and cross section circular, and effectively avoid carbon fiber arranging the damage and distortion that are paved in shape and in actual use.
Preferably, described sealing is treated to and is coated with glue bond, pad pasting or pastes high polymer foamed sheet.Carbon filament bundle distortion in actual use, Damage and fracture is avoided with this.
Compared with prior art, beneficial effect of the present invention is:
1. simple and easy, the practical and environmental protection of the preparation method of this suction wave plate material, can be directly used in the preparation of large area sheet material;
The structural adjustment of 2. inhaling wave plate material, flexibly with various, can be adapted to electromagnetic wave shielding and the absorption of broad frequency band, by regulating spacing, the size and geometric of grid, can reach and effectively shielding and absorb electromagnetic wave within the scope of 0.5 ~ 2.0GHz;
3. carbon fiber materials are few, but absorbing property is excellent and stable, and electromagnetic wave shielding efficiency is high;
4. this suction wave plate material can be used for the decoration barrier material of anti-electromagnetic radiation protective garment lining material, car, ship, aircraft decoration materials and light structure and has the reinforcing material for building inhaling ripple effect.
Accompanying drawing explanation
Fig. 1 a is the suction wave plate equipment structure schematic diagram of carbon filament bundle mono-layer single-face parallel grid shape arrangement;
Fig. 1 b is the suction wave plate equipment structure schematic diagram of the orthogonal grid-like arrangement of carbon filament bundle mono-layer single-face;
Fig. 1 c is the suction wave plate equipment structure schematic diagram of carbon filament bundle mono-layer single-face diamond-plaid palisade arrangement;
Fig. 1 d is the suction wave plate equipment structure schematic diagram of the parallel orthogonal grid-like arrangement of being separated by of carbon filament bundle individual layer;
Fig. 1 e is the suction wave plate equipment structure schematic diagram of the orthogonal grid-like arrangement of carbon filament bundle single-layer double-side;
Fig. 1 f is the suction wave plate equipment structure schematic diagram of the carbon filament bundle individual layer grid-like arrangement of parallel lozenge of being separated by of one side on one side;
Fig. 1 g is the suction wave plate equipment structure schematic diagram of the laminated grid-like arrangement in carbon filament bundle stage construction opposite;
Fig. 1 h is the suction wave plate equipment structure schematic diagram of carbon filament bundle stage construction to the qualified palisade arrangement of backing layer;
Fig. 2 a be carbon filament bundle parallel be separated by parallel, the suction wave plate equipment structure schematic diagram of the different grid-like arrangement of spacing;
Fig. 2 b is the suction wave plate equipment structure schematic diagram of the parallel diamond-plaid palisade arrangement of being separated by of carbon filament bundle;
Fig. 3 a is the suction wave plate equipment structure schematic diagram of the two-sided diamond-plaid palisade arrangement of carbon filament bundle;
Fig. 3 b is the two-sided suction wave plate equipment structure schematic diagram of just giving the grid-like arrangement of diamond of carbon filament bundle;
Fig. 4 a is the suction wave plate equipment structure schematic diagram of the grid-like arrangement of the parallel normal surface of being separated by of carbon filament bundle;
Fig. 4 b is the suction wave plate equipment structure schematic diagram of the grid-like arrangement of the parallel lozenge of being separated by of carbon filament bundle;
In Fig. 2 a ~ 4b, in circle, pattern represents schematic diagram in top down perspective;
Fig. 5 is the electromagnetic shielding effectiveness curve of the suction wave plate material of embodiment 1 gained;
Fig. 6 is the electromagnetic shielding effectiveness curve of the suction wave plate material of embodiment 2 gained.
Embodiment
Suction wave plate material of the present invention can be single layer structure or sandwich construction, as follows:
(1) single layer structure inhales wave plate material: can be divided into 4 kinds according to the spread pattern of carbon filament bundle on high polymer foamed sheet: mono-layer single-face, individual layer are bilateral, single-layer double-side or individual layer row simultaneously spread mode.
A. mono-layer single-face row paving mode:
Mono-layer single-face row paving mode has the arrangement of mono-layer single-face parallel grid shape, the orthogonal grid-like arrangement of mono-layer single-face and the arrangement of mono-layer single-face diamond-plaid palisade, as shown in Fig. 1 a ~ 1c.
Its preparation method is: by the carbon filament bundle of rounding and form stable with a determining deviation laid in parallel in the one side of high polymer foamed sheet, being pressed into this high polymer foamed sheet with pressurization roller by being arranged in described carbon filament bundle arranged in parallel again, obtaining mono-layer single-face parallel grid shape arrangement composite sheet.Or more parallel for one side composite sheet is rotated 90 ° or other a certain angle, continue to spread same carbon filament bundle on this face with same spacing or different spacing parallel, obtain the composite sheet of the orthogonal grid-like arrangement of mono-layer single-face or the arrangement of mono-layer single-face diamond-plaid palisade.
To direct use, then the surface of the press-in carbon filament bundle of the composite sheet to gained is needed to do to be coated with glue bond or to adopt pad pasting or paste the sealing of high polymer foamed sheet of the same race, to avoid carbon filament bundle distortion in actual use, Damage and fracture.
B. the bilateral row of individual layer spreads mode:
The bilateral row of individual layer spreads that mode has parallel parallel grid shape arrangement of being separated by, parallel orthogonal grid-like arrangement of being separated by arranges 3 kinds of spread patterns with parallel diamond-plaid palisade of being separated by.As shown in Figure 2 a, be separated by for carbon filament bundle is parallel parallel, the suction wave plate equipment structure schematic diagram of the different grid-like arrangement of spacing, as shown in Figure 2 b, the suction wave plate equipment structure schematic diagram of diamond-plaid palisade of being separated by for carbon filament bundle is parallel arrangement, as shown in Figure 1 d, to be separated by for carbon filament bundle individual layer is parallel the suction wave plate equipment structure schematic diagram of orthogonal grid-like arrangement.
Its preparation method is: by the mono-layer single-face parallel grid shape of gained in a. arrangement composite sheet upset back side upwards, spread same carbon filament bundle on this face with same or different spacing, same direction parallel, obtain parallel parallel grid shape arrangement composite sheet of being separated by; By parallel for the above-mentioned one side composite sheet upset back side upwards and rotate 90 ° or a certain angle, spread same carbon filament bundle on this face with same or different spacing parallel, obtain parallel orthogonal grid-like arrangement or the parallel diamond-plaid palisade arrangement composite sheet of being separated by of being separated by.
To direct use, then need do two-sided sealing to the composite sheet of gained with a..
C. single-layer double-side row paving mode:
Single-layer double-side row paving mode has the orthogonal grid-like arrangement of single-layer double-side, the arrangement of two-sided diamond-plaid palisade and is two-sidedly just giving the grid-like arrangement of diamond 3 kinds of spread patterns.As shown in fig. le, for the suction wave plate equipment structure schematic diagram of the orthogonal grid-like arrangement of carbon filament bundle single-layer double-side, as shown in Figure 3 a, for the suction wave plate equipment structure schematic diagram of the two-sided diamond-plaid palisade arrangement of carbon filament bundle, as shown in Figure 3 b, the suction wave plate equipment structure schematic diagram of the grid-like arrangement of diamond is just being given for carbon filament bundle is two-sided.
Its preparation method is:
By the composite sheet of orthogonal for the mono-layer single-face of gained in a. grid-like arrangement upset back side upwards, spread same carbon filament bundle on this face with same or different orthogonal grid size and shapes, same ranks direction parallel, obtain the orthogonal grid-like arrangement composite sheet of single-layer double-side;
By the mono-layer single-face diamond-plaid palisade of gained in a. arrangement composite sheet upset back side upwards, with same or different rhombus grid size and shapes, spread same carbon filament bundle on this face with same ranks direction or rotation 90 ° of parallel, obtain the composite sheet of two-sided diamond-plaid palisade arrangement;
By orthogonal for the mono-layer single-face of gained in a. grid-like arrangement composite sheet upset back side upwards, with rhombus grid spread pattern, with same row or column direction; Or to rotate 45 ° with same or different orthogonal grid size and shapes, parallel spreads same carbon filament bundle on this face, obtain the two-sided composite sheet of just giving the grid-like arrangement of diamond that one side is just giving another side rhombus.
To direct use, then need do two-sided sealing to the composite sheet of gained with a..
D. individual layer one side row paving mode on one side:
Individual layer on one side one side row paving mode has parallel normal surface and parallel lozenge two kinds of spread patterns of being separated by of being separated by.As shown in Fig. 1 f and 4b, the suction wave plate equipment structure schematic diagram of the grid-like arrangement of lozenge of being separated by for carbon filament bundle is parallel, as shown in fig. 4 a, the suction wave plate equipment structure schematic diagram of the grid-like arrangement of normal surface of being separated by for carbon filament bundle is parallel.
Its preparation method is:
The composite sheet upset back side arranged by the mono-layer single-face parallel grid shape of gained in a. upwards, by the preparation method of the composite sheet of the orthogonal grid-like arrangement of one side, same carbon filament bundle is arranged on this face with same direction or rotation 45 °, obtain the composite sheet of parallel normal surface of being separated by;
The composite sheet upset back side arranged by the mono-layer single-face diamond-plaid palisade of gained in a. upwards, to rotate the 1/2(q/2 of this rhombus acute angle q) or rotate q/2+90 °, or same direction or rotate 90 ° and by the preparation method of composite sheet of one side parallel grid shape arrangement in a., same carbon filament bundle is arranged on this face, obtain the composite sheet of parallel lozenge of being separated by.
To direct use, then need do two-sided sealing to the composite sheet of gained with a..
(2) multilayer inhales wave plate material:
According to the composite sheet of 4 kinds of spread pattern gained of individual layer, can get the combination of wherein a kind of composite sheet or multiple composite sheet, it is laminated to carry out two classes: a class to be closed or laminated face-to-face in the face of backing layer; One class is laminated in the same way or rotates laminated.
A. in the face of backing layer closes or face-to-face laminar way:
Described refer to that got individual layer composite sheet is in the bonding mode in the back side of the front of a slice and another sheet in the face of backing layer closes.As shown in figure 1h, for carbon filament bundle stage construction is to the suction wave plate equipment structure schematic diagram of the qualified palisade arrangement of backing layer.
Described laminatedly face-to-face refer to that got individual layer composite sheet is with vis-a-vis between two, or the bonding mode that the back side is relative between two.As shown in Figure 1 g, be the suction wave plate equipment structure schematic diagram of the laminated grid-like arrangement in carbon filament bundle stage construction opposite.
By closing in the face of backing layer or the multiple layer compisite sheet of face-to-face laminar way gained, sealing process as (1) a. must be done to its exposed surface with press-in carbon filament bundle.
B. laminated in the same way or rotation laminar way:
Described laminated in the same way or rotate and laminatedly refer to the bonding in the same way or rotate after of every individual layer relative to adjacent layer.Described rotation can be arbitrarily angled, but the composite sheet to parallel and orthogonal grid class, is preferentially rotation 90 ° or 45 °; And the composite sheet of rhombus grid class, be preferentially the 1/2(q/2 rotating this rhombus acute angle q) or rotate q/2+90 °.
Further describe the present invention with embodiment below, but do not limit content of the present invention.
Embodiment 1
Raw materials used is commercial polypropylene nitrile (PAN) base carbon fibre long filament, 200tex/3000F; PS foamed sheet; PVA glue.
Carbon filament bundle grid mono-layer single-face inhales the preparation of wave plate: the blade that foamed by the PS of purchase is cut into and is of a size of 30cm ' 30cm specification, by the twist of the carbon filament bundle of package 10 sth. made by twisting/10cm in addition, and with the solidification of epoxy resin starching post-drying, carbon filament bundle rounding and morphosis are stablized.Again one end adhesive tape of carbon filament bundle after twisting starching is fixed on PS foamed sheet, and stretches and be laid on PS foamed sheet, fix the other end with adhesive tape, cut off; In the same way, with the line space of 5mm, stretch tiling carbon filament bundle on PS foamed sheet, until spread by root.Then, with backer roll, the carbon filament bundle tiled is pressed in PS foamed sheet, obtains the parallel composite sheet of individual layer.Parallel for this individual layer composite sheet is rotated 90 °, and the carbon filament bundle adopting same carbon filament bundle to carry out column direction stretches tiling, mode go together arrangement identical, column pitch is the same with line space, is 5mm.The tiling process of repeated rows arrangement, then with backer roll, the carbon filament bundle tiled is pressed in PS foamed sheet, obtain the orthogonal composite sheet of mono-layer single-face.Finally with rotary broom, PVA glue is coated in the one side with the orthogonal grid of carbon filament bundle equably, coating thickness was as the criterion to cover carbon filament bundle diameter, then treated that it solidifies, and namely obtained the orthogonal grid of carbon filament bundle mono-layer single-face and inhaled wave plate material.
As shown in Figure 5, for electromagnetic shielding effectiveness EMSE (the electro-magnetic shielding efficiency) curve of the suction wave plate material of embodiment 1 gained, i.e. EMSE-frequency curve, compared with the suction wave plate material that itself and flexing arrange, electromagnetic shielding effectiveness peak is drawn close to centre, namely larger at the relative wave-sucking performance of electromagnetic frequency stage casing 0.7 ~ 1.7GHz, EMSE peak value reaches 15.25dB.Meanwhile, at 2GHz place, EMSE curve is also lifted upper, because surveying its value of quantitative limitation up to 17.89dB.
Embodiment 2
Raw materials used is commercial polypropylene nitrile (PAN) base carbon fibre long filament, 200tex/3000F; PVC foam sheet; TPU pad pasting; Polyacrylate.
The PVC foam sheet plate of purchase is cut into and is of a size of 30cm ' 30cm specification, by the twist of the carbon filament bundle of package 15 sth. made by twisting/10cm in addition, again one end adhesive tape of the carbon filament bundle after twisting starching is fixed on PVC foam sheet, and stretch and be laid on PVC foam sheet, fix the other end with adhesive tape, cut off; In the same way, with the spacing of 10mm, stretch tiling carbon filament bundle on PVC foam sheet, until spread by root.Then, with backer roll, the carbon filament bundle tiled is pressed in PVC foam sheet, obtains the parallel composite sheet of individual layer.By parallel for this individual layer composite sheet reversion back side upwards after, rotate 90 ° again, adopt same carbon filament bundle, with same 10mm spacing, carry out carbon filament bundle to stretch and be laid on PVC foam sheet, until spread, then with backer roll, the carbon filament bundle tiled is pressed in PS foamed sheet, obtains the bilateral parallel orthogonal composite sheet of being separated by of individual layer.Repeat this process and obtain the bilateral parallel orthogonal composite sheet four pieces of being separated by of individual layer, to merge the mode that every block rotates 45 ° successively back to surface layer, with polyacrylate by these four pieces of composite sheet bondings, uniform pressurization, until bonding agent solidification, and with TPU pad pasting, sealing is carried out to the superiors and orlop surface, obtain the suction wave plate material of 4 Rotating fields.
As shown in Figure 4, for electromagnetic shielding effectiveness EMSE (the electro-magnetic shielding efficiency) curve of the suction wave plate material of embodiment 2 gained, i.e. EMSE-frequency curve, compared with it inhales wave plate material with the individual layer of embodiment 1, electromagnetic shielding effectiveness peak is maximum at the relative wave-sucking performance of electromagnetic frequency stage casing 0.7 ~ 1.7GHz, and EMSE peak value reaches 30.05dB.Meanwhile, 16.16dB is reached at the EMSE peak value at 0.4GHz place; At 2GHz place, EMSE curve lifts trend on being still, because surveying its measured value of quantitative limitation up to 17.90dB.
Embodiment 3 ~ 9
Raw materials used is commercial polypropylene nitrile (PAN) base carbon fibre long filament, 300tex/2000F; Polypropylene (PP) foamed sheet; Polyacrylate.
Carbon filament bundle grid mono-layer single-face inhales the preparation of wave plate: the blade that foamed by the PP of purchase is cut into and is of a size of 30cm ' 30cm specification, by the twist of the carbon filament bundle of package in addition 10 sth.s made by twisting/10cm, make carbon filament bundle rounding and morphosis stable.Again one end adhesive tape of carbon filament bundle after twisting starching is fixed on PP foamed sheet, and stretches and be laid on PP foamed sheet, fix the other end with adhesive tape, cut off;
Embodiment 3: in the same way, with the line space of 4mm, stretches tiling carbon filament bundle on PP foamed sheet, until spread by root.Then, with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtains the parallel composite sheet of individual layer; Then parallel for this individual layer composite sheet is turned to the back side, rotates 90 ° again, the carbon filament bundle adopting same carbon filament bundle to carry out column direction stretches tiling, mode go together arrangement identical, column pitch is the same with line space, is 4mm.The tiling process of repeated rows arrangement, then with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtain the bilateral parallel orthogonal composite sheet of being separated by of individual layer.Finally with rotary broom, polyacrylate is coated on the two sides with carbon filament bundle equably, coating thickness was as the criterion to cover carbon filament bundle diameter, then treated that it solidifies, and namely obtained the bilateral parallel orthogonal grid of being separated by of carbon filament bundle individual layer and inhaled wave plate material.To electromagnetic shielding effectiveness EMSE (electro-magnetic shielding efficiency) curve, the i.e. Measurement and analysis of EMSE-frequency curve of this suction wave plate material, its relatively high suction ripple frequency band and EMSE peak value auspicious in table 1..
Embodiment 4: in the same way, with the line space of 4mm, stretches tiling carbon filament bundle on PP foamed sheet, until spread by root.Then, with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtains the parallel composite sheet of individual layer; Then parallel for this individual layer composite sheet is rotated 60 ° again, the carbon filament bundle adopting same carbon filament bundle to carry out column direction stretches tiling, mode go together arrangement identical, diagonal spacing is the same with line space, is 4mm.The tiling process of repeated rows arrangement, then with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtain mono-layer single-face rhombus composite sheet.Finally with rotary broom, polyacrylate is coated on this face with carbon filament bundle equably, coating thickness was as the criterion to cover carbon filament bundle diameter, then treated that it solidifies, and namely obtained carbon filament bundle mono-layer single-face rhombus grid and inhaled wave plate material.To electromagnetic shielding effectiveness EMSE (electro-magnetic shielding efficiency) curve, the i.e. Measurement and analysis of EMSE-frequency curve of this suction wave plate material, its relatively high suction ripple frequency band and EMSE peak value auspicious in table 1..
Embodiment 5: in the same way, with the line space of 4mm, stretches tiling carbon filament bundle on PP foamed sheet, until spread by root.Then, with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtains the parallel composite sheet of individual layer; Then parallel for this individual layer composite sheet is rotated 90 ° again, the carbon filament bundle adopting same carbon filament bundle to carry out column direction stretches tiling, mode go together arrangement identical, column pitch is the same with line space, is 4mm.The tiling process of repeated rows arrangement, then with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtain the orthogonal composite sheet of mono-layer single-face.Finally with rotary broom, polyacrylate is coated on this face with carbon filament bundle equably, coating thickness was as the criterion to cover carbon filament bundle diameter, then treated that it solidifies, and namely obtained the orthogonal grid of carbon filament bundle mono-layer single-face and inhaled wave plate material.To electromagnetic shielding effectiveness EMSE (electro-magnetic shielding efficiency) curve, the i.e. Measurement and analysis of EMSE-frequency curve of this suction wave plate material, its relatively high suction ripple frequency band and EMSE peak value auspicious in table 1..
Embodiment 6: in the same way, with the line space of 8mm, stretches tiling carbon filament bundle on PP foamed sheet, until spread by root.Then, with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtains the parallel composite sheet of individual layer; Then parallel for this individual layer composite sheet is rotated 90 ° again, the carbon filament bundle adopting same carbon filament bundle to carry out column direction stretches tiling, mode go together arrangement identical, column pitch is the same with line space, is 8mm.The tiling process of repeated rows arrangement, then with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtain the orthogonal composite sheet of mono-layer single-face.Finally with rotary broom, polyacrylate is coated on this face with carbon filament bundle equably, coating thickness was as the criterion to cover carbon filament bundle diameter, then treated that it solidifies, and namely obtained the orthogonal grid of carbon filament bundle mono-layer single-face and inhaled wave plate material.To electromagnetic shielding effectiveness EMSE (electro-magnetic shielding efficiency) curve, the i.e. Measurement and analysis of EMSE-frequency curve of this suction wave plate material, its relatively high suction ripple frequency band and EMSE peak value auspicious in table 1..
Embodiment 7: in the same way, with the line space of 4mm, stretches tiling carbon filament bundle on PP foamed sheet, until spread by root.Then, with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtains the parallel composite sheet of individual layer; Then parallel for this individual layer composite sheet is rotated 90 ° again, the carbon filament bundle adopting same carbon filament bundle to carry out column direction stretches tiling, mode go together arrangement identical, column pitch is the same with line space, is 16mm.The tiling process of repeated rows arrangement, then with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtain the orthogonal composite sheet of mono-layer single-face.Finally with rotary broom, polyacrylate is coated on this face with carbon filament bundle equably, coating thickness was as the criterion to cover carbon filament bundle diameter, then treated that it solidifies, and namely obtained carbon filament bundle mono-layer single-face one side rhombus grid and inhaled wave plate material.To electromagnetic shielding effectiveness EMSE (electro-magnetic shielding efficiency) curve, the i.e. Measurement and analysis of EMSE-frequency curve of this suction wave plate material, its relatively high suction ripple frequency band and EMSE peak value auspicious in table 1..
Embodiment 8: in the same way, with the line space of 8mm, stretches tiling carbon filament bundle on PP foamed sheet, until spread by root.Then, with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtains the parallel composite sheet of individual layer; Then parallel for this individual layer composite sheet is rotated 90 ° again, the carbon filament bundle adopting same carbon filament bundle to carry out column direction stretches tiling, mode go together arrangement identical, column pitch is the same with line space, is 8mm.The tiling process of repeated rows arrangement, then with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtain the orthogonal composite sheet of mono-layer single-face; Then parallel for this individual layer composite sheet be turned to the back side and row, column arranged equal translation 4mm, namely forming the perspective lattice of the 4mm of two sides orthogonal square dislocation; Repeat the preparation process of the orthogonal composite sheet of one side, obtain the orthogonal composite sheet of single-layer double-side.Finally with rotary broom, polyacrylate is coated on the two sides with carbon filament bundle equably, coating thickness was as the criterion to cover carbon filament bundle diameter, then treated that it solidifies, and namely obtained the orthogonal grid of carbon filament bundle single-layer double-side and inhaled wave plate material.To electromagnetic shielding effectiveness EMSE (electro-magnetic shielding efficiency) curve, the i.e. Measurement and analysis of EMSE-frequency curve of this suction wave plate material, its relatively high suction ripple frequency band and EMSE peak value auspicious in table 1..
Embodiment 9: in the same way, with the line space of 16mm, stretches tiling carbon filament bundle on PP foamed sheet, until spread by root.Then, with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtains the parallel composite sheet of individual layer; Then parallel for this individual layer composite sheet is rotated 90 ° again, the carbon filament bundle adopting same carbon filament bundle to carry out column direction stretches tiling, mode go together arrangement identical, column pitch is the same with line space, is 4mm.The tiling process of repeated rows arrangement, then with backer roll, the carbon filament bundle tiled is pressed in PP foamed sheet, obtain the orthogonal composite sheet of mono-layer single-face; Then parallel for this individual layer composite sheet is turned to the back side, and with row arrangement pitches 4mm, the tiling process of repeated rows arrangement, obtains the orthogonal composite sheet of individual layer one side.Finally with rotary broom, polyacrylate is coated on the two sides with carbon filament bundle equably, coating thickness was as the criterion to cover carbon filament bundle diameter, then treated that it solidifies, and wave plate material inhaled by the orthogonal grid namely obtaining carbon filament bundle individual layer one side.To electromagnetic shielding effectiveness EMSE (electro-magnetic shielding efficiency) curve, the i.e. Measurement and analysis of EMSE-frequency curve of this suction wave plate material, its relatively high suction ripple frequency band and EMSE peak value auspicious in table 1..
Embodiment 10 ~ 12
Embodiment 10: the bilateral parallel orthogonal composite sheet 4 of being separated by of carbon filament bundle individual layer of Example 3 gained, with laminated in the same way back to face, with polyacrylate by these four pieces of composite sheet bondings, uniform pressurization, until bonding agent solidification, and with TPU pad pasting, sealing being carried out to the superiors and orlop surface, wave plate material inhaled by the orthogonal grid obtaining 4 Rotating fields.This multilayer is inhaled to electromagnetic shielding effectiveness EMSE (electro-magnetic shielding efficiency) curve, the i.e. Measurement and analysis of EMSE-frequency curve of wave plate material, its relatively high suction ripple frequency band and EMSE peak value auspicious in table 2..
Embodiment 11: the orthogonal composite sheet of carbon filament bundle mono-layer single-face 4 of Example 5 gained, with laminated in the same way back to face, with polyacrylate by these four pieces of composite sheet bondings, uniform pressurization, until bonding agent solidification, and with TPU pad pasting, sealing being carried out to the superiors and orlop surface, wave plate material inhaled by the orthogonal grid obtaining 4 Rotating fields.This multilayer is inhaled to electromagnetic shielding effectiveness EMSE (electro-magnetic shielding efficiency) curve, the i.e. Measurement and analysis of EMSE-frequency curve of wave plate material, its relatively high suction ripple frequency band and EMSE peak value auspicious in table 2..
Embodiment 12: the orthogonal composite sheet 4 of the carbon filament bundle individual layer one side of Example 9 gained, laminated to rotate 90 ° face-to-face, namely parallel while the face, grid face that is orthogonal is harmonious; With polyacrylate by these four pieces of composite sheet bondings, uniform pressurization, until bonding agent solidification, and carry out sealing with TPU pad pasting to the superiors and orlop surface, wave plate material inhaled by the orthogonal grid obtaining 4 Rotating fields.This multilayer is inhaled to electromagnetic shielding effectiveness EMSE (electro-magnetic shielding efficiency) curve, the i.e. Measurement and analysis of EMSE-frequency curve of wave plate material, its relatively high suction ripple frequency band and EMSE peak value auspicious in table 2..
The relatively high suction ripple frequency band of table 1 embodiment 1,3-9 and the contrast of EMSE peak value
Note: due to polyacrylonitrile (PAN) the base carbon fibre long filament adopted, 200tex/3000F with 300tex/2000F is the carbon filament bundle that overall thickness is the same, therefore only has the impact of the form difference of grid (as rectangle, rhombus and orthogonal square) different with carbon fiber content (size as row, column spacing) to inhale ripple frequency band and EMSE peak value.
Table 2 embodiment 2,10-11 multilayer inhale relatively high suction ripple frequency band and the contrast of EMSE peak value of wave plate material
Note: due to carbon fiber is the same, consumption is the same or close, outer sealing too, the impact of foamed sheet and binding agent is ignored and is not remembered, therefore only back to face and the laminated and impact of rotating inhaling ripple frequency band and EMSE peak value face-to-face.
Claims (6)
1. the suction wave plate material of a carbon fiber endless tows in grid-shaped arrangement, comprise at least one deck and inhale wave plate, described suction wave plate comprises the carbon fiber filament bundle of base material and grid-like arrangement, it is characterized in that, the carbon fiber filament bundle row of described grid-like arrangement is layered at least one side of base material, the described grid-like arrangement of parallel grid shape, orthogonal grid-like arrangement or the diamond-plaid palisade of being arranged as arranges, and described base material is high polymer foamed sheet; Described suction wave plate material can be single layer structure or sandwich construction, and described single layer structure inhales wave plate material can be divided into 4 kinds according to the spread pattern of carbon filament bundle on high polymer foamed sheet: mono-layer single-face, individual layer are bilateral, single-layer double-side or individual layer row simultaneously spread mode; Described multilayer is inhaled wave plate material and is taked to close or laminated or laminated in the same way or rotate laminated laminar way face-to-face in the face of backing layer, described refer to that got single layer structure inhales wave plate material in the bonding mode in the back side of the front of a slice and another sheet in the face of backing layer closes, described laminatedly face-to-face refer to that got single layer structure inhales wave plate material with vis-a-vis between two, or the bonding mode that the back side is relative between two, described laminated in the same way or rotate and laminatedly refer to the bonding in the same way or rotate after of every individual layer relative to adjacent layer, described rotation can be arbitrarily angled.
2. the suction wave plate material of carbon fiber endless tows in grid-shaped arrangement as claimed in claim 1, it is characterized in that, described high polymer foamed sheet is foamed polystyrene sheet, polypropylene expanded or foam polyvinyl chloride sheet.
3. the preparation method of the suction wave plate material of carbon fiber endless tows in grid-shaped arrangement according to claim 1, it is characterized in that, comprise: tile carbon fiber filament bundle at least one base material, carbon fiber filament bundle is grid-like arrangement, by in carbon fiber filament bundle press-in base material, form single layer structure or through laminated formation sandwich construction, have the exposed surface of carbon fiber filament bundle to do sealing process to press-in.
4. the preparation method of the suction wave plate material of carbon fiber endless tows in grid-shaped arrangement as claimed in claim 3, it is characterized in that, described carbon fiber filament bundle is through rounding and form stable preliminary treatment.
5. the preparation method of the suction wave plate material of carbon fiber endless tows in grid-shaped arrangement as claimed in claim 4, is characterized in that, described rounding and form stable preliminary treatment are twisting, impregnation starching or directly scrape slurry, or twisting and impregnation starching or directly scrape the combination of slurry.
6. the preparation method of the suction wave plate material of carbon fiber endless tows in grid-shaped arrangement as claimed in claim 3, is characterized in that, described sealing is treated to and is coated with glue bond, pad pasting or pastes high polymer foamed sheet.
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| CN112081609B (en) * | 2020-08-12 | 2022-06-14 | 山东大庚工程材料科技有限公司 | High-strength intelligent carbon fiber geogrid |
| CN114389051A (en) * | 2022-02-17 | 2022-04-22 | 西北工业大学 | Grid electromagnetic wave absorbing structure and preparation method and application thereof |
| CN115971018B (en) * | 2023-01-07 | 2023-07-28 | 中国航空制造技术研究院 | Radar wave-absorbing coating structure and preparation method thereof |
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