CN1664960B - Flame resisting wave absorption base material and process for making same - Google Patents
Flame resisting wave absorption base material and process for making same Download PDFInfo
- Publication number
- CN1664960B CN1664960B CN 200510038653 CN200510038653A CN1664960B CN 1664960 B CN1664960 B CN 1664960B CN 200510038653 CN200510038653 CN 200510038653 CN 200510038653 A CN200510038653 A CN 200510038653A CN 1664960 B CN1664960 B CN 1664960B
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- base material
- pyramid
- cube
- water
- corner elements
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- 239000000463 material Substances 0.000 title claims abstract description 25
- 238000010521 absorption reaction Methods 0.000 title claims description 15
- 238000000034 method Methods 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 7
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004014 plasticizer Substances 0.000 claims abstract description 6
- 239000004745 nonwoven fabric Substances 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 7
- 239000006229 carbon black Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000002791 soaking Methods 0.000 abstract description 2
- 230000002745 absorbent Effects 0.000 abstract 2
- 239000002250 absorbent Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 238000012216 screening Methods 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- -1 poly ethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000012749 thinning agent Substances 0.000 description 1
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Abstract
This invention relates to a flame resisting wave absorbent base material used in microwave screened room and a manufacturing process thereof, which adopts non-woven as base material and coats the mixture of aluminum-magnesium compositing powder, water-soluble plasticizer, adhensive, black pigment and water on non-woven, after mechanical impressing, folding to make as pyramid unit. The invention solves problems that the sponge has disadvantages of inflammable and organic soaking or the like when the prior sponge is as the absorbent base material, so as to have the advantages of process simplicity, non-pollution, conservation of energy, high strength pyramid, longevity of service, fire retardant-type and lower cost, wherein the high strength pyramid can be made as various kinds of pyramid to adapt and absorb various kinds of electromagnetic wave with different frequency, the invention can work for more than 10 years, the oxygen index of the invention is more than 60 and have no need to arrange the fire control facilities or system, so as to save cost, and the invention can bear the exposure of the high-power microwave, has no need to cool the facilities and can be repeatedly used so as to reduce the use cost and has high cost performance, and the installation period is short.
Description
Technical field
The present invention relates to a kind of wave absorption base material and manufacture craft, particularly a kind of flame resisting wave absorption base material and manufacture craft that is used for the micro-wave screening darkroom.
Background technology
Before the present invention; Be used to absorb electromagnetic wave; Especially the employed wave absorption base material in micro-wave screening darkroom be with sponge as carrier, adopting soaking method immerses fire retardant, wave absorbing agent in the sponge, is made into the pyramid shape then; Solve the electromagnetic wave that reflects in the micro-wave screening darkroom, to guarantee the free space of test.
But; The making or the job operation of making wave absorption base material as carrier with sponge are to soak sponge with organism as thinning agent; Make incombustible agent, wave absorbing agent can be immersed in the sponge; The processing of this chemistry or process are brought serious pollution, and the harmful gas volatilization that is produced with the heating wire cutting sponge damages health of operators, and need to consume a large amount of electric energy.The oxygen index of the sponge pyramid wave absorption base material of making in this way is less than 33, and flame ignition and propagation smoke density are greater than 200 (polyurethane sponges); Because the dynamics of sponge itself is not enough, make pyramid variable curved, easy to be aging or sagging, cause absorbing property to become bad, the pyramid subtended angle must be greater than 15 degree, and range of application is restricted, and serviceable life is shorter relatively, can not reuse after the dismounting; Use the sponge absorbing material still to need the fire-fighting system of huge expense.
Summary of the invention
The object of the invention just is to overcome above-mentioned defective, designs the novel wave absorption base material of a kind of nonflammable, pollution-free, environmental protection and handling ease.
Technical scheme of the present invention is:
Flame resisting wave absorption base material, its major technique are characterised in that with the nonwoven fabrics to be carrier, are coated on the nonwoven fabrics after aluminum-magnesium compositing powder, water-soluble plasticizer, cementing agent, carbon black and water are in harmonious proportion, and are made into the cube-corner elements body.
Another technical scheme of the present invention is:
The flame resisting wave absorption base material manufacture craft is characterized in that:
(1) selects nonwoven fabrics as base material;
(2) aluminum-magnesium compositing powder, water-soluble plasticizer, cementing agent and suitable quantity of water are mixed, stir;
(3) material that step (2) is obtained evenly is coated on the nonwoven fabrics, leaves standstill;
(4) cementing agent, carbon black and suitable quantity of water are mixed, stir;
(5) material that step (4) is obtained evenly is coated on the nonwoven fabrics of step (3), leaves standstill;
(6) mechanical impression;
(7) folding, bonding, be the cube-corner elements body;
(8) dryness finalization.
Advantage of the present invention and effect are to process, manufacture craft is quite simple, pollution-free, energy-conservation; The pyramid intensity of processing is big, can be made into the pyramid of all lengths, adapting to the electromagnetic wave that absorbs various different frequencies, as is made into 1.5 meters long, is specifically designed to the absorbing low frequency electromagnetic wave; Long service life can reach more than 10 years; Nonflammable, oxygen index need not be provided with fire-fighting fire extinguishing facility or system, cost saving greater than 60; Can bear HIGH-POWERED MICROWAVES irradiation, like every square metre several kilowatts microwave irradiation, need not cooling infrastructure; Can use repeatedly after the dismounting, reduce use cost, cost performance is high; User's installation period is short.
Description of drawings
The difficulty that Fig. 1---the present invention makes burns and sucks ripple base material cube-corner elements shape figure.
Fig. 2---the cube-corner elements body is provided with four little cube-corner elements body structure figure in the bottom.
Embodiment
As shown in Figure 1, get nonwoven fabrics as carrier; The pure and mild an amount of water of aluminum-magnesium compositing powder (also can use magnesia powder), water-soluble plasticizer, cementing agent such as modified poly ethylene is mixed, stir, be coated in then on the nonwoven fabrics, leave standstill a period of time again; And then with cementing agent, carbon black and an amount of water mixing, be coated in after stirring and leave standstill on the nonwoven fabrics later, leave standstill a period of time again; Cube-corner elements body size according to different is carried out mechanical impression, folds according to the impression vestige again, uses adhesive bond, is made into the cube-corner elements shape, dryness finalization.As long as apply one side and be outer layer surface, make the cube-corner elements body with this face.Strengthened the structural behaviour of nonwoven fabrics, difficult combustion makes nonwoven fabrics collapsible, has elasticity, can inhale ripple.
As shown in Figure 2, look up over from cube-corner elements body bottom, can see in the cube-corner elements body bottom four (more than one) onesize little cube-corner elements body is set that its pyramid subtended angle α is greater than the pyramid subtended angle α of the cube-corner elements body of outside.Like this, can stop the electromagnetic wave that possibly reflect, to reach thorough shielding electromagnetic wave effect from outside pyramid cell cube top.
The nonflammable cube-corner elements body wave absorption base material that the present invention is made into through test, use, difficult combustion, the flame ignition smoke density is less than 83,30MH
ZThe time absorptive character be superior to-14dB, absorbing property is deterioration not for a long time, bears power 2～15KW/m
2The time without any need for air-cooled equipment, in light weight with respect to the sponge wave absorption base material.The microwave dark room made from wave absorption base material of the present invention belongs to green darkroom.
The scope that the present invention asks for protection is not limited to the description of the foregoing description.
Claims (2)
1. flame resisting wave absorption base material is characterized in that with the nonwoven fabrics being carrier, and aluminum-magnesium compositing powder, water-soluble plasticizer, cementing agent and suitable quantity of water are mixed, and is coated on the nonwoven fabrics after stirring, and leaves standstill; Be coated on the nonwoven fabrics after then cementing agent, carbon black and water being in harmonious proportion, be made into the cube-corner elements body, in cube-corner elements body bottom, more than one little cube-corner elements body is set, its pyramid subtended angle is greater than the cube-corner elements body pyramid subtended angle of outside.
2. flame resisting wave absorption base material manufacture craft is characterized in that:
(1) select nonwoven fabrics as base material;
(2) aluminum-magnesium compositing powder, water-soluble plasticizer, cementing agent and suitable quantity of water are mixed, stir;
(3) material that step (2) is obtained evenly is coated on the nonwoven fabrics, leaves standstill;
(4) cementing agent, carbon black and suitable quantity of water are mixed, stir;
(5) material that step (4) is obtained evenly is coated on the nonwoven fabrics of step (3), leaves standstill;
(6) mechanical impression;
(7) folding, bonding, be the cube-corner elements body;
(8) dryness finalization,
Wherein, in this cube-corner elements body bottom more than one little cube-corner elements body is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510038653 CN1664960B (en) | 2005-04-01 | 2005-04-01 | Flame resisting wave absorption base material and process for making same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510038653 CN1664960B (en) | 2005-04-01 | 2005-04-01 | Flame resisting wave absorption base material and process for making same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1664960A CN1664960A (en) | 2005-09-07 |
| CN1664960B true CN1664960B (en) | 2012-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200510038653 Expired - Fee Related CN1664960B (en) | 2005-04-01 | 2005-04-01 | Flame resisting wave absorption base material and process for making same |
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| Country | Link |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769058A (en) * | 2010-02-12 | 2010-07-07 | 泰州拓谷超细粉体材料有限公司 | Multilayer microwave unreflected chamber absorbing material filled by loose foam blocks |
| 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 |
| CN111321588A (en) * | 2020-04-23 | 2020-06-23 | 上海曙雀贸易有限公司 | Wave-absorbing material based on vertical micro-porous flexible non-woven fabric and preparation and application 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075972A (en) * | 1993-03-19 | 1993-09-08 | 北京理工大学 | Millimeter wave wide-band and wave-absorbing coating |
| EP1245720A1 (en) * | 2001-03-30 | 2002-10-02 | Schlegel Systems, Inc. | Flame retardant corrosive resistant conductive fabric article and method of forming same |
| CN2689403Y (en) * | 2004-04-19 | 2005-03-30 | 北京航空航天大学 | Low-reflecting fire-assistant wave absorbing bodies |
| CN2812231Y (en) * | 2005-04-01 | 2006-08-30 | 张宇桥 | Noncombustible wave-absorbing substrate in a form of pyramid unit body |
-
2005
- 2005-04-01 CN CN 200510038653 patent/CN1664960B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075972A (en) * | 1993-03-19 | 1993-09-08 | 北京理工大学 | Millimeter wave wide-band and wave-absorbing coating |
| EP1245720A1 (en) * | 2001-03-30 | 2002-10-02 | Schlegel Systems, Inc. | Flame retardant corrosive resistant conductive fabric article and method of forming same |
| CN2689403Y (en) * | 2004-04-19 | 2005-03-30 | 北京航空航天大学 | Low-reflecting fire-assistant wave absorbing bodies |
| CN2812231Y (en) * | 2005-04-01 | 2006-08-30 | 张宇桥 | Noncombustible wave-absorbing substrate in a form of pyramid unit body |
Non-Patent Citations (5)
| Title |
|---|
| JP特开平6-275981A 1994.09.30 |
| 刘本东等.AXB型吸波材料及微波暗室.安全与电磁兼容 2005年增刊.2005,(2005年增刊),55-57. |
| 刘本东等.AXB型吸波材料及微波暗室.安全与电磁兼容 2005年增刊.2005,(2005年增刊),55-57. * |
| 刘本东等.新型微波暗室吸波材料--AXB型吸波材料.微波学报 第22卷增刊.2006,(第22卷增刊),217-219. |
| 刘本东等.新型微波暗室吸波材料--AXB型吸波材料.微波学报 第22卷增刊.2006,(第22卷增刊),217-219. * |
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| CN1664960A (en) | 2005-09-07 |
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Effective date of registration: 20190513 Address after: 210000 No. 12 Dongfeng Road, Yaxi Town, Gaochun District, Nanjing City, Jiangsu Province Patentee after: Nanjing bright Electronic Engineering Co.,Ltd. Address before: 210013 mailbox 1313 22 sub-boxes in Nanjing, Jiangsu Province Patentee before: Zhang Yuqiao |
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Granted publication date: 20120321 |