CN1909115A - Flame resisting wave-absorbing material and method for making same - Google Patents
Flame resisting wave-absorbing material and method for making same Download PDFInfo
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- CN1909115A CN1909115A CN 200610041349 CN200610041349A CN1909115A CN 1909115 A CN1909115 A CN 1909115A CN 200610041349 CN200610041349 CN 200610041349 CN 200610041349 A CN200610041349 A CN 200610041349A CN 1909115 A CN1909115 A CN 1909115A
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- resisting wave
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- 239000011358 absorbing material Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims description 8
- 239000003063 flame retardant Substances 0.000 claims abstract description 24
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 19
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims description 36
- 238000000576 coating method Methods 0.000 claims description 36
- 239000003795 chemical substances by application Substances 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000013530 defoamer Substances 0.000 claims description 16
- 239000003973 paint Substances 0.000 claims description 15
- 239000011159 matrix material Substances 0.000 claims description 13
- 230000001680 brushing effect Effects 0.000 claims description 8
- 238000003892 spreading Methods 0.000 claims description 8
- 230000007480 spreading Effects 0.000 claims description 8
- 230000002745 absorbent Effects 0.000 claims description 7
- 239000002250 absorbent Substances 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 7
- 239000006229 carbon black Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000000347 magnesium hydroxide Substances 0.000 claims description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 2
- 238000001035 drying Methods 0.000 abstract description 6
- 239000004744 fabric Substances 0.000 abstract description 2
- 238000010422 painting Methods 0.000 abstract 2
- 239000006260 foam Substances 0.000 description 7
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 235000019241 carbon black Nutrition 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000011162 core material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000004079 fireproofing Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 229920000620 organic polymer Polymers 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 235000012254 magnesium hydroxide Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000012736 patent blue V Nutrition 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Images
Abstract
The related preparation method for a new flame-resisting wave-absorbing material used on full/semi-anechoic chamber comprises: with non-woven fabrics as basal body, painting flame-retardant coat on both inner and outer surfaces of the fabric, drying; then painting conductive coat on former coat, drying; impressing and forming, and folding into the unit body. This invention improves product performance greatly.
Description
Technical field
The present invention relates to a kind of novel wave-absorbing material and preparation method thereof, relate generally to a kind of important materials that is applied to fully anechoic chamber and semi-anechoic chamber, the test environment of no reflection events free space is provided.
Background technology
Absorbing material is as far back as the existing production seventies in last century, but both at home and abroad all with flexible polyurethane foams as matrix, cut into pyramidally, make by technologies such as chemical coating dipping, oven dry, be installed in the darkroom by the tackifier stickup then.
The isocyanurate foam absorbing material is owing to base material self aging action, and can only guarantee 5-8 tenure of use, produces dry linting, elbow, release toxic gas etc. owing to wear out simultaneously, not only darkroom electrical property decline, and test environment can't guarantee; Because isocyanurate foam itself is a macromolecular material, belong to inflammable thing on the other hand, self oxygen index LOI is about 17%-18%, though when the preparation absorbing material by adding fire retardant, final absorbing material oxygen index belongs to fire-fighting B2 level material about 26%; Especially producing highly higher absorbing material (height more than as 1000mm), the processing technology difficulty, the product uniformity consistency is relatively poor, unstable properties, oven dry cost costliness, so manufacturer generally seldom produces the above height of 1000mm isocyanurate foam absorbing material, but electromagnetic compatible dark chamber (mainly using frequency range to be 30MHz-1GHz), for satisfying low frequency performance, must use the absorbing material of height more than 1000mm.For addressing this problem, adopting another kind of absorbing material both at home and abroad usually---ferrite is used for satisfying the performance requirement of electromagnetic compatible dark chamber to test site with compound the making of isocyanurate foam absorbing material of height below 1000mm.But this compound substance exceeds 2-3 times of price than isocyanurate foam cost, and polyurethane wave-absorbing material on average bears power≤0.8kw/, can't satisfy the requirement of high-power emissive source test.In the 80-90 age in last century, because isocyanurate foam absorbing material fire resistance is relatively poor, domestic a lot of microwave dark room fire failures took place.
Previous Chinese patent application 200510038653.x discloses a kind of wave absorption base material, its technical scheme is: be matrix with the nonwoven fabrics, with being coated on the nonwoven fabrics after aluminum-magnesium compositing powder, water-soluble plasticizer, cementing agent, carbon black and the water mediation, be made into the cube-corner elements body.This Flame Retardancy can be higher, and oxygen index can reach more than 60%, bears power 2-15kw/m
2, solved the relatively poor situation of polyurethane pyramid absorbing material fire resistance substantially, also improved and born power.But still can not satisfy the requirement of more high-power emissive source test, therefore have better fire resistance and the higher absorbing material that bears power is anxious waits to develop.And, be matrix owing to adopt nonwoven fabrics, nonwoven fabrics has another name called adhesive-bonded fabric, mainly be to pass through impregnation or hot-forming by chemical fibre, the surface fiber burr is comparatively obvious, so relatively poor with this absorbing material any surface finish of making, stain resistance differences etc. have also had a strong impact on absorbing material appearance quality.
Summary of the invention
The purpose of this invention is to provide a kind of fire resistance better, bear the higher absorbing material of power, thoroughly solve the potential safety hazard of catching fire of microwave dark room, and satisfy the requirement of high-power emissive source test.
The technical solution adopted for the present invention to solve the technical problems is: a kind of flame resisting wave-absorbing material, be to be the cube-corner elements body of matrix with the nonwoven fabrics, it is characterized in that, be coated with flame retardant coating on the surfaces externally and internally of nonwoven fabrics, outside flame retardant coating, be coated with conductive coating.
Said flame retardant coating, its coating are formulated by inorganic composite flame retardants, organic adhesion agent, inorganic adhesive, defoamer and water.
Said conductive coating, its coating are formulated by inorganic absorbent, organic adhesion agent, defoamer, spreading agent and water.
Wherein said inorganic composite flame retardants is one or more in aluminium hydroxide, magnesium hydroxide or the aluminum-magnesium compositing powder.
The preferred acetylene carbon black of wherein said inorganic absorbent.
Wherein said inorganic adhesive, preferred silicasol.
Wherein said organic adhesion agent, preferably polyethylene alcohol glue.
Further, because the flame resisting wave-absorbing material structure is a hollow body, the different structure inner core is inserted in inside, and is not only useful to the absorbed performance, and material rectangular pyramid body is played a supporting role, and makes material have intensity preferably.
Another object of the present invention provides the preparation method of said flame resisting wave-absorbing material, specifically may further comprise the steps:
1) preparation anti-flaming dope: inorganic combustion inhibitor, organic adhesion agent, inorganic adhesive, defoamer and water are mixed, be mixed with anti-flaming dope;
2) brushing flame retardant coating: anti-flaming dope is coated in nonwoven fabrics matrix two surfaces goes up and oven dry;
3) preparation electrically-conducting paint: inorganic absorbent, organic adhesion agent, defoamer, spreading agent and water are mixed, be mixed with electrically-conducting paint;
4) brushing conductive coating: be coated on the flame retardant coating electrically-conducting paint and oven dry;
5) impression moulding: will on marking press, strike out pyramid absorbing material sheet material through matrix fire-retardant and that conductive coating applies;
6) folding forming is a cell cube.
For ease of in the darkroom, installing, can be with the cube-corner elements body (also claiming single awl) that makes, brush coating is pasted and is assembled into cell block.Also can be if necessary in cell block appearance spraying and decorating coating, as sky blue coating.
In order to make product of the present invention have preferable performance, the proportioning of anti-flaming dope is recommended following weight portion among the present invention:
Inorganic combustion inhibitor 35-45 part, organic adhesion agent 20-30 part, inorganic adhesive 6-10 part, defoamer 0.1-0.3 part, water 25-35 part.
The proportioning of electrically-conducting paint is recommended following weight portion:
Inorganic absorbent 2.5-3.4 part, organic adhesion agent 35-42 part, defoamer 0.1-0.3 part, spreading agent 0.8-1.2 part, water 50-60 part.
The present invention develops a kind of fire-retardant and electrically-conducting paint that is different from fully in first to file and is painted on successively on the nonwoven fabrics matrix, produce a kind of flame resisting wave-absorbing material, particularly mixing assembly by a kind of inorganic adhesive-silicasol and organic adhesion agent in flame retardant coating uses, on the one hand, effectively solved not smoothness of surface that nonwoven surface fiber burr causes, main is, on the other hand, mix assembly by having added inorganic silicon colloidal sol and organic adhesion agent, thoroughly solved the defective that adds single organic adhesion agent existence.Silicasol is the colloidal solution with the high-molecular-weight poly metasilicic acid of water dispersion medium, can form firm si-o key between its silicon dioxide granule, just forms continuous reticulate texture film.Because the rigidity of si-o key is stronger, after the mixed assembly of organic polymer emulsion, the organic polymer film forming matter is evenly distributed in the gap that si-o films, can improve the silicasol film forming so easily chaps, improved the organic adhesion agent coating property again, not only have organic polymer tackifier toughness, improved coating strength, adhesion, anti-soil, performance such as bright and clean, high temperature resistant simultaneously.Make to belong to fire-fighting B1 level material by flame resisting wave-absorbing material oxygen index of the present invention 〉=70%, thoroughly solve the potential safety hazard of catching fire, need not to be equipped with special fire fighting device in the darkroom simultaneously, saved a large amount of fire-fighting fund inputs for construction side.Simultaneously because coating strength, adhesion strengthen, and the coating brushing improved the anti-high power performance of matrix greatly at the surfaces externally and internally of matrix, this flame resisting wave-absorbing material on average bears the 5-20kw/m of anti-power
2, can satisfy in some high-power emissive source darkrooms and use; In addition, problems such as elbow, dry linting, environmental protection have also been solved.And because the flame resisting wave-absorbing material structure is a hollow body, the inner different structure inner core that inserts, not only useful to the absorbed performance, and material rectangular pyramid body played a supporting role, make material have intensity preferably, so there are not phenomenons such as elbow, can be made into highly is the 1600mm absorbing material.This material can have absorptive character preferably in low-frequency range, can directly be used in electromagnetic compatible dark chamber, need not to add that ferrite wave-absorbing material is compound can meet the demands, service band can be widened 30MHz-40GHz, and price only is half of isocyanurate foam pyramid absorbing material and ferrite Wave suction composite material.Because main raw material(s) has been selected dead matter for use, flame resisting wave-absorbing material can guarantee more than 10 years serviceable life.
Description of drawings
Fig. 1 is the cube-corner elements body stretch-out view that flame resisting wave-absorbing material of the present invention gets;
Fig. 2 is the cell block synoptic diagram that flame resisting wave-absorbing material makes; Wherein 1, single awl.
Fig. 3 is the cell block schematic bottom view of one embodiment of the invention.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Employed in the present invention term unless other explanation is arranged, generally has the implication of those of ordinary skills' common sense.
In following embodiment, various processes of Xiang Ximiaoshuing and method are not conventional methods as known in the art.
Embodiment 1:
With impregnation moulding nonwoven fabrics is matrix; 40 parts of aluminum-magnesium compositing powders, 23 parts of organic adhesion agents (as polyvinyl alcohol glue), 7.5 parts of silicasol, 0.1 part of defoamer and water thrown in dispersion machine respectively for 29 parts stir, be uniformly dispersed and make anti-flaming dope; The anti-flaming dope for preparing is ground one time with three-roll grinder, make coating even, fine and smooth; Add anti-flaming dope in the fire-retardant mechanical brushing equipment slots of special use, will put in order the volume nonwoven fabrics and be immersed in the anti-flaming dope by pressure roller, open the long drying tunnel of 15m, the drying tunnel other end begins the rolling nonwoven fabrics, and anti-flaming dope evenly is coated on the nonwoven fabrics, and oven dry; 3 parts of carbon blacks, 38 parts of organic adhesion agents (as polyvinyl alcohol glue), 0.1 part of defoamer, 1 part of spreading agent, water are thrown in dispersion machine respectively for 57 parts and stirred, be uniformly dispersed and make electrically-conducting paint; The electrically-conducting paint for preparing is ground one time with three-roll grinder, make coating even, fine and smooth; In another special-purpose conductive mechanical brushing equipment slots, add electrically-conducting paint equally, the whole volume nonwoven fabrics that has applied flame-retardant layer is immersed in the electrically-conducting paint by pressure roller, opens the long drying tunnel of 15m, the drying tunnel other end begins the rolling nonwoven fabrics, electrically-conducting paint evenly is coated on the nonwoven fabrics, and oven dry; According to the different size material, the good semi-manufacture fire-retardant, conductive coating of brushing are cut into the corresponding size sheet material on request, will be installed on the indentation equipment with the laser plate-making cutting die in advance, then sheet material is placed on begin on the marking press die-cut; With die-cut good sheet material (as Fig. 1),, brush coating folding, paste single awl 1 by crease line.
Rice word core material is inserted in single awl 1, and single awl of using forming is in shaping frame, and brush coating is pasted the cell block that is assembled into as Fig. 2, and its bottom surface as shown in Figure 3.
Its performance is as shown in table 1 after tested for the flame resisting wave-absorbing material that the present invention makes
Table 1 flame resisting wave-absorbing material performance test of the present invention
| 3 | Fire-retardant rank | B 2The level fire proofing | B 2The level fire proofing | B 1The level fire proofing |
| 4 | Anti-power | ≤1KW/m 2 | ≤1KW/m 2 | ≥5KW/m 2 |
| 5 | Environmental protection | Non-environmental protection material | Pay attention to environmental protection, carry out certain environmental protection treatment. | Ep-type material |
| 6 | Weight (same specification relatively) | 1 | 1 | 0.8 |
| 7 | Cost (same specification relatively) | 1 | 3 | 0.6 |
| 8 | Mounting process | If with the compound use mounting process of ferrite complexity, difficulty is higher. | If with the compound use mounting process of ferrite complexity, difficulty is higher. | Mount mode, convenient and swift. |
| 9 | With ferritic combination process | Technical difficulty is higher, need carry out impedance matching, special transition processing. | Technical difficulty is higher, need carry out impedance matching, special transition processing. | Integrated material need not any transition section. |
Embodiment 2:
Substantially the same manner as Example 1, difference is that anti-flaming dope is pressed following preparation: 35 parts of aluminium hydroxide, 20 parts of organic adhesion agents, 6 parts of silicasol, 0.1 part of defoamer, 25 parts in water.Electrically-conducting paint is pressed following preparation: 2.5 parts of acetylene carbon blacks, 35 parts of organic adhesion agents, 0.1 part of defoamer, 0.8 part of spreading agent, 50 parts in water.
Embodiment 3:
Substantially the same manner as Example 1, difference is that anti-flaming dope is pressed following preparation: 45 parts of magnesium hydroxides, 30 parts of organic adhesion agents, 10 parts of silicasol, 0.3 part of defoamer, 35 parts in water.Electrically-conducting paint is pressed following preparation: 3.4 parts of acetylene carbon blacks, 42 parts of organic adhesion agents, 0.3 part of defoamer, 1.2 parts of spreading agents, 60 parts in water.
The invention is not restricted to these disclosed embodiments, the present invention will cover the scope described in the patent book, and the various modification of claim scope and equivalence variation.
Claims (7)
1, a kind of flame resisting wave-absorbing material is to be the cube-corner elements body of matrix with the nonwoven fabrics, it is characterized in that, is coated with flame retardant coating on the surfaces externally and internally of nonwoven fabrics, is coated with conductive coating outside flame retardant coating.
2, flame resisting wave-absorbing material as claimed in claim 1 is characterized in that, said flame retardant coating, its coating are formulated by inorganic composite flame retardants, organic adhesion agent, inorganic adhesive, defoamer and water; Said conductive coating, its coating are formulated by inorganic absorbent, organic adhesion agent, defoamer, spreading agent and water.
3, flame resisting wave-absorbing material as claimed in claim 2 is characterized in that, wherein said inorganic composite flame retardants is one or more in aluminium hydroxide, magnesium hydroxide or the aluminum-magnesium compositing powder.
4, flame resisting wave-absorbing material as claimed in claim 2 is characterized in that, wherein said inorganic absorbent is an acetylene carbon black.
5, flame resisting wave-absorbing material as claimed in claim 2 is characterized in that, wherein said inorganic adhesive is a silicasol.
6, flame resisting wave-absorbing material as claimed in claim 2 is characterized in that, the cube-corner elements body is provided with one or more little cube-corner elements body in the bottom.
7, prepare the method for the described flame resisting wave-absorbing material of claim 1, it is characterized in that, may further comprise the steps:
1) preparation anti-flaming dope: inorganic combustion inhibitor, organic adhesion agent, inorganic adhesive, defoamer and water are mixed, be mixed with anti-flaming dope;
2) brushing flame retardant coating: anti-flaming dope is coated in nonwoven fabrics matrix two surfaces goes up and oven dry;
3) preparation electrically-conducting paint: inorganic absorbent, organic adhesion agent, defoamer, spreading agent and water are mixed, be mixed with electrically-conducting paint;
4) brushing conductive coating: be coated on the flame retardant coating electrically-conducting paint and oven dry;
5) impression moulding: will on marking press, strike out pyramid absorbing material sheet material through matrix fire-retardant and that conductive coating applies;
6) folding forming is single pyramid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100413495A CN100511487C (en) | 2006-08-16 | 2006-08-16 | Flame resisting wave-absorbing material and method for making same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100413495A CN100511487C (en) | 2006-08-16 | 2006-08-16 | Flame resisting wave-absorbing material and method for making same |
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| Publication Number | Publication Date |
|---|---|
| CN1909115A true CN1909115A (en) | 2007-02-07 |
| CN100511487C CN100511487C (en) | 2009-07-08 |
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| CNB2006100413495A Expired - Fee Related CN100511487C (en) | 2006-08-16 | 2006-08-16 | Flame resisting wave-absorbing material and method for making same |
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| CN103347379A (en) * | 2013-07-10 | 2013-10-09 | 南京洛普电子工程研究所 | Fire-retardant type wide-frequency-band high-power compound wave-absorbing material and preparing method thereof |
| CN103436220A (en) * | 2013-09-17 | 2013-12-11 | 南京南大波平电子信息有限公司 | Low-frequency stage microwave absorption material |
| CN103700410A (en) * | 2013-12-31 | 2014-04-02 | 南京南大波平电子信息有限公司 | Difficult-to-burn type wave-absorbing material for electromagnetic compatible anechoic chamber and preparation method thereof |
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| CN105025695A (en) * | 2015-07-28 | 2015-11-04 | 苏州驭奇材料科技有限公司 | Broadband electromagnetic wave absorption complex with flame-retarding characteristics and manufacturing method of complex |
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| CN113394573A (en) * | 2021-07-25 | 2021-09-14 | 西安安聚德纳米科技有限公司 | Light-weight broadband wave-absorbing material for high-power microwave darkroom and preparation method thereof |
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| CN103889197B (en) * | 2012-12-21 | 2016-12-28 | 财团法人工业技术研究院 | Shielding composite membrane |
| CN103073961B (en) * | 2013-01-24 | 2015-06-03 | 南京洛普电子工程研究所 | Multi-element composite microwave absorbent, microwave absorbing coating, microwave absorbing base material and preparation method |
| CN103073961A (en) * | 2013-01-24 | 2013-05-01 | 南京洛普电子工程研究所 | Multi-element composite microwave absorbent, microwave absorbing coating, microwave absorbing base material and preparation method |
| CN103347379B (en) * | 2013-07-10 | 2016-03-23 | 南京洛普电子工程研究所 | High power combined absorbing material of nonflammable wide-band and preparation method thereof |
| CN103347379A (en) * | 2013-07-10 | 2013-10-09 | 南京洛普电子工程研究所 | Fire-retardant type wide-frequency-band high-power compound wave-absorbing material and preparing method thereof |
| CN103436220A (en) * | 2013-09-17 | 2013-12-11 | 南京南大波平电子信息有限公司 | Low-frequency stage microwave absorption material |
| CN103700950A (en) * | 2013-12-03 | 2014-04-02 | 上海卫星装备研究所 | Coating type wave-absorbing component used in high-vacuum condition |
| CN103700950B (en) * | 2013-12-03 | 2017-03-01 | 上海卫星装备研究所 | For coating type wave absorbing assembly under high vacuum condition |
| CN103700410A (en) * | 2013-12-31 | 2014-04-02 | 南京南大波平电子信息有限公司 | Difficult-to-burn type wave-absorbing material for electromagnetic compatible anechoic chamber and preparation method thereof |
| CN105025695A (en) * | 2015-07-28 | 2015-11-04 | 苏州驭奇材料科技有限公司 | Broadband electromagnetic wave absorption complex with flame-retarding characteristics and manufacturing method of complex |
| CN106519471A (en) * | 2016-10-26 | 2017-03-22 | 大连东信微波技术有限公司 | Wave absorbing material and preparation method thereof |
| CN113394573A (en) * | 2021-07-25 | 2021-09-14 | 西安安聚德纳米科技有限公司 | Light-weight broadband wave-absorbing material for high-power microwave darkroom and preparation method thereof |
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