CN202032947U - Highly-absorbing camouflage net - Google Patents
Highly-absorbing camouflage net Download PDFInfo
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- CN202032947U CN202032947U CN2011200800013U CN201120080001U CN202032947U CN 202032947 U CN202032947 U CN 202032947U CN 2011200800013 U CN2011200800013 U CN 2011200800013U CN 201120080001 U CN201120080001 U CN 201120080001U CN 202032947 U CN202032947 U CN 202032947U
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- conductive coating
- cotton cloth
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Abstract
The utility model relates to a highly-absorbing camouflage net comprising a surface layer and a bottom layer which are two nylon fiber woven fabrics, wherein a magnetic coating is formed on the inner surface of the nylon fiber woven fabric of the surface layer, a conductive coating is formed on the inner surface of the nylon fiber woven fabric of the bottom layer, a sandwich structure is bonded between the surface layer and the bottom layer, the sandwich structure is a hollow wave-transmitting spherical layer with a low density and a low dielectric constant, and a conductive coating is formed on the outer surface of the hollow wave-transmitting spherical layer. In the camouflage net, owing to the light-weight hollow wave-transmitting spherical layer which is coated with the conductive layer, the specific weight of materials is greatly reduced, and the radar wave-absorbing capability of the camouflage net is enhanced. Therefore, the absorbing capacity in the radar band of the camouflage net is remarkably increased.
Description
Technical field
The utility model belongs to the interleaving techniques field of microwave technology and material science, relates in particular to structural design of a kind of camouflage net that has high absorption characteristic in the microwave section and preparation method thereof.
Background technology
Camouflage net is the stealthy overcover that is used for hiding military weapon such as gun, tank, panzer or military target in the military affairs, reduces enemy's scouting effect, reduces found probability, improves the survival ability that is equipped in the modern war.Along with the development of Detection Techniques, camouflage net need have the ability that protectiving ultraviolet, visible light, nearly far infrared and radar wave etc. are scouted.Yet existing camouflage net is not good at the camouflage effectiveness of radar, can not carry out a large amount of absorptions to the radar wave of surveying, and it is easy to be arrived by the radar signature acquisition of signal, has limited its application greatly.
The utility model content
In view of the existing in prior technology problem, the utility model be intended to disclose a kind of have the sandwich camouflage net and preparation method thereof, the assimilation effect that it has at radar reaches the purpose in this wave band camouflage.
Technical solution of the present utility model is achieved in that
A kind of high absorption camouflage net comprises that two-layer nylon fiber weaves cotton cloth as top layer and bottom, it is characterized in that:
The nylon fiber inner surface of weaving cotton cloth in described top layer applies magnetisable coating, the inner surface coated with conductive coating that described bottom nylon fiber is weaved cotton cloth;
Bonding sandwich between described top layer and the bottom, described sandwich are the hollow ripple ball layer of low-density low-k, the outer surface coated with conductive coating of described hollow ripple ball layer.
Further, described magnetisable coating is a magnetic carbonyl iron coating;
Described conductive coating, comprise bottom on weaving cotton cloth conductive coating and the conductive coating of hollow ripple outer surface of ball, be the carbon dust coating, described carbon dust is the nanometer and the submicron powder of many particle diameters, carbon dust is of a size of 20-1000nm.
The external diameter of described hollow ripple ball is 0.5-1.0mm.
The utility model discloses the preparation method of described camouflage net simultaneously, comprises the steps:
(1) selection of top layer, primer and preliminary treatment:
Selection has the nylon fiber of high strength and low thickness and weaves cotton cloth as top layer and bottom;
Organic solvent use in washing back, as aqueous acetone solution, soaks 3min removal greasy dirt, room temperature dry or low temperature drying standby;
(2) the material selection of sandwich, preliminary treatment and coated with conductive coating:
Select the hollow ripple ball of the high wave penetrate capability of low-density low-k for use, as foam filter pearl, perlite, glass microsphere, cenosphere etc., particle diameter is 0.5-1.0mm;
Use pickling, alkali cleaning, organic solvent (as aqueous acetone solution) to soak successively in described hollow ripple ball, remove spherome surface impurity and greasy dirt, place the high polymer binder that diluted to stir together with coupling agent then, taking-up is dried;
And then, in hollow ripple outer surface of ball coated with conductive coating: the powerful stirring of suspension that pretreated hollow ripple ball is placed carbon dust.The surface for the treatment of hollow ripple ball coats one deck continuously uniformly during the carbon dust coating, takes out and immerses in the solution that polyvinyl alcohol content is mass ratio 1-5% and stir, take out dry under the room temperature or low temperature drying standby; To be water and carbon dust form by 15: 1 volume ratio configuration the suspension of described carbon dust, and described carbon dust is the nanometer and the submicron powder of many particle diameters, is of a size of 20-1000nm.
(3) camouflage net machine-shaping:
The bottom inner surface coated with conductive coating of weaving cotton cloth: the pretreated bottom of step (1) weaved cotton cloth to be tiled on the platform, and the coating that carbon dust and binding agent are formed is coated on the inner surface that described bottom weaves cotton cloth and forms conductive coating; Described binding agent is that epoxy resin, alcohol form by the configuration of 10: 0.8～1 mass ratio; The volume ratio of carbon dust and binding agent is 25～40: 100.
Hollow ripple ball bonds: after the hollow ripple ball of handling well in the step (2) that has conductive coating is put into the mixed solution be made up of binding agent, curing agent and silane coupler again and stirred, hollow ripple ball is arranged on the aforementioned bottom nylon fiber that has applied conductive coating weaves cotton cloth closely; The mass ratio of described mixed solution binding agent, curing agent and silane coupler is 10: 3～4: 1～4.
The top layer inner surface of weaving cotton cloth applies magnetisable coating: being weaved cotton cloth in the pretreated top layer of step (1) is tiled on the platform, and the coating that magnetic carbonyl iron and binding agent are formed is coated on the inner surface of weaving cotton cloth on described top layer and forms magnetisable coating; Described binding agent is to be formed by the configuration of 10: 0.8～1 mass ratio by epoxy resin, alcohol; The volume ratio of magnetic carbonyl iron and binding agent is 25～50: 100.
The aforementioned top layer nylon that has applied magnetisable coating weaved cotton cloth be covered on the aforesaid hollow ripple ball cold curing moulding.
Described top layer and bottom nylon fiber are weaved cotton cloth and be can be various military camouflage colors and weave cotton cloth.
Compared with prior art, effect of the present utility model and benefit are that the design of sandwich camouflage net has realized in the broad frequency range radar wave had preferably and absorbs; The adding of the saturating ripple ball of lightweight can reduce the weight of camouflage net greatly; Raw material source and succinct technology make its large-scale application become possibility widely.
Description of drawings
Fig. 1 is the structural representation of the described camouflage net of embodiment; Among the figure,
1, the bottom nylon fiber is weaved cotton cloth; 2, the conductive coating on bottom is weaved cotton cloth; 3, hollow ripple ball; 4, the magnetisable coating on weave cotton cloth in the top layer.
The specific embodiment
Below in conjunction with embodiment the utility model is further described specifically:
(1) selection of material and processing
1, the selection of top layer, primer and preliminary treatment
Top layer and bottom matrix material are that nylon fiber is weaved cotton cloth, and requiring weaves cotton cloth has high intensity and thin thickness, can adopt various military camouflage colors to weave cotton cloth.At first fiber weaving cloth is cleaned in clear water, the aqueous acetone solution with 20 times of dilutions soaked 3 minutes again, removed the greasy dirt in weaving cotton cloth, weaving cotton cloth of will cleaning up at last at room temperature dry or low temperature drying standby.
2, the selection of intermediate layer material and processing
2.1 the selection of hollow ripple ball
The raw material of hollow ripple ball is selected polystyrene foam plastics EPS spheric granules for use, and particle diameter is at 0.5-1.0mm, and density is 0.03-0.036g/cm
3
2.2 the preliminary treatment of hollow ball
Foam ball is used 5～10% hydrochloric acid and sodium hydrate aqueous solution rinsing successively, and the aqueous acetone solution with 20 times of dilutions soaked 3 minutes again, removed acidity, alkaline impurities and the greasy dirt etc. of spherome surface.Getting high polymer binder PVA dilute with water then is mass ratio 2%, puts into 4% silane coupler solution after stirring and stirs 10～20min, take out dry under the room temperature standby.
2.3 spherome surface coated with conductive coating
Select the ultra-fine carbon dust of N234 type for use, ball milling 5h makes the carbon dust size in 20～1000nm scope, is the nanometer and the submicron powder of many particle diameters.According to water and 15: 1 volume ratio of carbon dust configuration powdered carbon suspension, will join 0.2mm through the saturating ripple ball of surface preparation 200g EPS
3Stir 3～5min in the above-mentioned solution, the blade of stirrer rotating speed is adjusted at 500～800rpm, treats that carbon dust is evenly distributed on spherome surface continuously and can takes out.Invade PVA content then and be in 2% the solution and stir 2min, take out room temperature and dry.
(2) preparation of camouflage net
At first pretreated bottom nylon fiber being weaved cotton cloth 1 is tiled on the platform, and brushing N234 molded dimension that one deck crossed by ball milling with hairbrush is the ultra-fine carbon dust of 20-1000nm and according to epoxy resin and alcohol 10: thus the electrically-conducting paint that the binding agent that 1 mass ratio disposes is formed forms a conductive coating 2.Get the dilution of high polymer binder used for epoxy resin alcohol then and be mass ratio 80%, add polyamide as curing agent, putting into 4% silane coupler solution after stirring stirs, the hollow ripple ball 3 that will have a conductive coating is put into mixed solution and is stirred 5～10min, the hollow ripple ball 3 that will have a binding agent is arranged on the bottom 1 of coated with conductive coating closely, the 5 usefulness hairbrush of then will pretreated top layer weaving cotton cloth are brushed the magnetic coating that one deck forms by magnetic carbonyl iron absorbent with according to the binding agent that 10: 1 mass ratioes of epoxy resin and alcohol dispose and are formed magnetisable coating 4, then it is pasted and having on the hollow ball layer of binding agent last cold curing moulding.
(3) end properties test
At this, mainly test the absorption of electromagnetic wave ability of camouflage net, because be camouflage net material important performance indexes to the absorbability of radar wave.Test adopts arc bounce technique to carry out in no echo darkroom, and test result is represented with dB.The absorbability of different wave-absorbers is with to absorb bandwidth different, and sandwich of the present utility model is carbon bag EPS wave-absorber, i.e. the hollow ripple ball of the EPS of surface-coated carbon dust conductive coating, and its absorbent properties are as shown in the table:
| Frequency (GHz) | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Reflectivity (dB) | 1 | 1.8 | 3.2 | 6.2 | 14.6 | 11.1 | 8.6 | 5.8 | 4.4 |
| Frequency (GHz) | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | ? |
| Reflectivity (dB) | 3.2 | 2.9 | 7.3 | 4.4 | 3.3 | 6.4 | 6.2 | 8.9 | ? |
The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, all should be encompassed within the protection domain of the present utility model.
Claims (3)
1. one kind high absorption camouflage net comprises that two-layer nylon fiber weaves cotton cloth as top layer and bottom, it is characterized in that:
The nylon fiber inner surface of weaving cotton cloth in described top layer applies magnetisable coating, the inner surface coated with conductive coating that described bottom nylon fiber is weaved cotton cloth;
Bonding sandwich between described top layer and the bottom, described sandwich are the hollow ripple ball layer of low-density low-k, the outer surface coated with conductive coating of described hollow ripple ball layer.
2. the high camouflage net that absorbs according to claim 1 is characterized in that:
Described magnetisable coating is a magnetic carbonyl iron coating;
Described conductive coating, comprise bottom on weaving cotton cloth conductive coating and the conductive coating of hollow ripple outer surface of ball, be the carbon dust coating, described carbon dust is the nanometer and the submicron powder of many particle diameters, carbon dust is of a size of 20-1000nm.
3. according to claim 1 or 2 arbitrary described high camouflage nets that absorb, it is characterized in that:
The external diameter of described hollow ripple ball is 0.5-1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200800013U CN202032947U (en) | 2011-03-23 | 2011-03-23 | Highly-absorbing camouflage net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200800013U CN202032947U (en) | 2011-03-23 | 2011-03-23 | Highly-absorbing camouflage net |
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| Publication Number | Publication Date |
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| CN202032947U true CN202032947U (en) | 2011-11-09 |
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| CN2011200800013U Expired - Fee Related CN202032947U (en) | 2011-03-23 | 2011-03-23 | Highly-absorbing camouflage net |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155870A (en) * | 2011-03-23 | 2011-08-17 | 大连理工大学 | High-absorption camouflage net and manufacturing method thereof |
| CN102927853A (en) * | 2012-10-26 | 2013-02-13 | 无锡裕通织造有限公司 | Invisible textile |
| CN103759591A (en) * | 2013-12-18 | 2014-04-30 | 马放 | Radar-proof infrared-proof optical detection-proof compound camouflage soft carpet type equipment |
| CN105823378A (en) * | 2016-05-06 | 2016-08-03 | 浙江大学 | Three-dimensional fully-polarized super-surface invisible cloak |
-
2011
- 2011-03-23 CN CN2011200800013U patent/CN202032947U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155870A (en) * | 2011-03-23 | 2011-08-17 | 大连理工大学 | High-absorption camouflage net and manufacturing method thereof |
| CN102155870B (en) * | 2011-03-23 | 2013-07-31 | 大连理工大学 | High-absorption camouflage net and manufacturing method thereof |
| CN102927853A (en) * | 2012-10-26 | 2013-02-13 | 无锡裕通织造有限公司 | Invisible textile |
| CN103759591A (en) * | 2013-12-18 | 2014-04-30 | 马放 | Radar-proof infrared-proof optical detection-proof compound camouflage soft carpet type equipment |
| CN103759591B (en) * | 2013-12-18 | 2016-05-18 | 马放 | Anti-radar, infrared, the compound soft blanket type equipment of optical detection camouflage |
| CN105823378A (en) * | 2016-05-06 | 2016-08-03 | 浙江大学 | Three-dimensional fully-polarized super-surface invisible cloak |
| CN105823378B (en) * | 2016-05-06 | 2017-05-10 | 浙江大学 | Three-dimensional fully-polarized super-surface invisible cloak |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20130323 |