CN105907367A - Preparation method of wave-absorbing material and wave-absorbing material prepared therefrom - Google Patents
Preparation method of wave-absorbing material and wave-absorbing material prepared therefrom Download PDFInfo
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- CN105907367A CN105907367A CN201610266170.3A CN201610266170A CN105907367A CN 105907367 A CN105907367 A CN 105907367A CN 201610266170 A CN201610266170 A CN 201610266170A CN 105907367 A CN105907367 A CN 105907367A
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- absorbing material
- colloid solution
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Abstract
The invention provides a preparation method of a wave-absorbing material and the wave-absorbing material prepared therefrom. The method comprises: preparing nanometer particle colloidal solution having an electromagnetic wave absorption characteristic; putting a porous substrate material into the nanometer particle colloidal solution, allowing the nanometer particle colloidal solution to enter the porous substrate material; using an electrophoresis device to let the nanometer particle colloidal solution inside the porous substrate material suffer electrophoresis; drying the porous substrate material to obtain the wave-absorbing material. The preparation method of the wave-absorbing material and the wave-absorbing material prepared therefrom can increase the electromagnetic wave absorption characteristic of the wave-absorbing material; meanwhile, the preparation process of the wave-absorbing material is simple.
Description
Technical field
The present invention relates to field of material technology, particularly relate to the suction ripple of a kind of absorbing material preparation method and formation
Material.
Background technology
Along with the fast development of electronic information technology, the electromagnetic wave occurred in surrounding space is more and more diversified,
In order to avoid between electronic device interfere and on healthy impact, absorbing material is in electronics skill
Art field and physical protection aspect have important application.Owing to absorbing material needs to reduce anti-to electromagnetic wave
Penetrate, it is thus achieved that maximum electro-magnetic wave absorption, the material of conventional structure is generally difficult to meet described requirement.People are led to
Cross the absorbing material of structure multiple structure, make the electrology characteristic of every layer material gradually change, reduce material pair
The reflection of electromagnetic wave.
During realizing the present invention, inventor finds that in prior art, there are the following problems:
First, between different layers, the material electromagnetic property at contact surface yet suffers from a sudden change, makes electromagnetic wave exist
Certain reflection is still there is at contact surface；Secondly, the absorbing material preparation method of this multiple structure is more numerous
Trivial.
Summary of the invention
A kind of absorbing material preparation method of present invention offer and the absorbing material of formation, it is possible to increase inhale ripple material
The radar absorption characteristic of material, the preparation process of this absorbing material is simple simultaneously.
First aspect, the present invention provides a kind of absorbing material preparation method,
Preparation has the nanometer particle colloid solution of electromaganic wave absorbing property；
Porous matrix material is put in described nanometer particle colloid solution, make described nanometer particle colloid solution
Well in described porous matrix；
By using electrophoretic apparatus so that the described nanometer particle colloid solution in described porous matrix material is sent out
Raw electrophoresis；
Described porous matrix material is dried process, obtains absorbing material.
Alternatively, described by using electrophoretic apparatus so that the described nanoparticle in described porous matrix material
Sub-colloid solution generation electrophoresis includes:
The described porous matrix material absorbing nanometer particle colloid solution is placed between two panels graphite electrode and executes
Making alive, makes described nanometer particle colloid solution generation electrophoresis.
Alternatively, the nanoparticle in described nanometer particle colloid solution is metal nanoparticle or nonmetal
Nanoparticle or magnetic nano-particle.
Alternatively, described metal nanoparticle is Ag, Au, Cu, Ni or Co, described non pinetallic nano grain
Son is CNT or graphene oxide, and described magnetic nano-particle is Fe3O4Or Fe2O3。
Alternatively, described porous matrix material is polyurethane sponge, PVA foam, aerosil.
Second aspect, the present invention provides a kind of absorbing material, and described absorbing material uses in claim 1-4 appoints
One described absorbing material preparation method is prepared from.
Alternatively, the nanoparticle concentration graded in described absorbing material.
The absorbing material preparation method of embodiment of the present invention offer and the absorbing material of formation so that nanoparticle
Colloid solution is well in porous matrix, and described nanoparticle has absorption characteristic to electromagnetic wave, utilizes glue
The feature that body particle surface is charged, by the electrophoresis of colloidal particle under extra electric field, is successfully realized and receives
Rice corpuscles Concentraton gradient distribution in porous matrix, so that the absorbing material ELECTROMAGNETIC REFLECTION formed is weak,
Electromagnetic absorption is strong, and the preparation process of absorbing material preparation method is simple simultaneously.
Accompanying drawing explanation
Fig. 1 is the flow chart of one embodiment of the invention absorbing material preparation method；
Fig. 2 is that the present invention uses silver nanoparticle colloid solution and the preparation of polyurethane sponge host material to inhale ripple material
The flow chart of the method for material.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that
Described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on this
Embodiment in bright, the institute that those of ordinary skill in the art are obtained under not making creative work premise
There are other embodiments, broadly fall into the scope of protection of the invention.
The present invention provides a kind of absorbing material preparation method, as it is shown in figure 1, described method includes:
S11, preparation have the nanometer particle colloid solution of electromaganic wave absorbing property；
S12, porous matrix material is put in described nanometer particle colloid solution, make described nanometer particle colloid
Solution is well in described porous matrix；
S13, by use electrophoretic apparatus so that the described nanometer particle colloid in described porous matrix material is molten
Liquid generation electrophoresis；
S14, described porous matrix material is dried process, obtains absorbing material.
The embodiment of the present invention provide absorbing material preparation method so that nanometer particle colloid solution well into
In porous matrix, described nanoparticle has absorption characteristic to electromagnetic wave, utilizes colloidal particle surface charged
Feature, by the electrophoresis of colloidal particle under extra electric field, is successfully realized nanoparticle at porous matrix
In Concentraton gradient distribution so that the absorbing material ELECTROMAGNETIC REFLECTION formed is weak, electromagnetic absorption is strong, simultaneously
The preparation process of absorbing material preparation method is simple.
Alternatively, described by using electrophoretic apparatus so that the described nanoparticle in described porous matrix material
Sub-colloid solution generation electrophoresis includes:
The described porous matrix material absorbing nanometer particle colloid solution is placed between two panels graphite electrode and executes
Making alive, makes described nanometer particle colloid solution generation electrophoresis.
Alternatively, the nanoparticle in described nanometer particle colloid solution is metal nanoparticle or nonmetal
Nanoparticle or magnetic nano-particle.
Alternatively, described metal nanoparticle is Ag, Au, Cu, Ni or Co, described non pinetallic nano grain
Son is CNT or graphene oxide, and described magnetic nano-particle is Fe3O4Or Fe2O3。
Alternatively, described porous matrix material is polyurethane sponge, PVA foam, aerosil.
The absorbing material preparation method that the present invention provides so that nanometer particle colloid solution is well into porous base
In matter, described nanoparticle has absorption characteristic to electromagnetic wave, and the electrophoresis that this process employs colloidal particle is special
Property, by the substrate absorbing nanometer particle colloid solution applies electric field, make colloidal particle at electric field action
Lower move along a direction, so that its distribution in substrate is along direction of an electric field generation graded,
So that the dielectric constant gradient change of described host material, thus improve the suction ripple of the absorbing material of formation
Characteristic.
Absorbing material is prepared below for using silver nanoparticle colloid solution and polyurethane sponge host material
Method is described in detail.
As shown in Figure 2: first prepare silver nanoparticle colloid solution, this nano grain of silver sub-surface is electronegative,
Then polyurethane sponge is immersed absorption colloid solution in colloid solution.Then the poly-of colloid solution will be absorbed
Urethane is positioned between two panels graphite electrode, and applies the unidirectional current of 30V, and Nano silver grain is under electric field action
To positive polar motion, therefore the concentration in its polyurethane near negative pole is gradually lowered, and near positive pole
Concentration in polyurethane is gradually increased, and finally its concentration forms Gradient distribution.Finally, 80 DEG C are carried out at baking oven
Dried has obtained the silver ion/polyurethane wave-absorbing material of silver particles Concentraton gradient change.
The embodiment of the present invention also provides for a kind of absorbing material, and described absorbing material uses suction ripple material described above
Preparation method for material is prepared from.
The absorbing material that the embodiment of the present invention provides, by making nanometer particle colloid solution well into porous
In substrate, described nanoparticle has absorption characteristic to electromagnetic wave, utilizes the feature that colloidal particle surface is charged,
By the electrophoresis of colloidal particle under extra electric field, it is successfully realized dense in porous matrix of nanoparticle
Degree Gradient distribution, so that the absorbing material ELECTROMAGNETIC REFLECTION formed is weak, electromagnetic absorption is strong, inhales ripple material simultaneously
The preparation process of preparation method for material is simple.
Alternatively, the nanoparticle concentration graded in described absorbing material.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to
This, any those familiar with the art, in the technical scope that the invention discloses, can readily occur in
Change or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention
Should be as the criterion with scope of the claims.
Claims (7)
1. an absorbing material preparation method, it is characterised in that including:
Preparation has the nanometer particle colloid solution of electromaganic wave absorbing property；
Porous matrix material is put in described nanometer particle colloid solution, make described nanometer particle colloid solution
Well in described porous matrix；
By using electrophoretic apparatus so that the described nanometer particle colloid solution in described porous matrix material is sent out
Raw electrophoresis；
Described porous matrix material is dried process, obtains absorbing material.
Absorbing material preparation method the most according to claim 1, it is characterised in that described by using
Electrophoretic apparatus so that the described nanometer particle colloid solution generation electrophoresis in described porous matrix material includes:
The described porous matrix material absorbing nanometer particle colloid solution is placed between two panels graphite electrode and executes
Making alive, makes described nanometer particle colloid solution generation electrophoresis.
Absorbing material preparation method the most according to claim 1, it is characterised in that described nanoparticle
Nanoparticle in colloid solution is metal nanoparticle or non pinetallic nano particle or magnetic nano particle
Son.
Absorbing material preparation method the most according to claim 3, it is characterised in that described metal nano
Particle is Ag, Au, Cu, Ni or Co, and described non pinetallic nano particle is CNT or graphene oxide,
Described magnetic nano-particle is Fe3O4Or Fe2O3。
Absorbing material preparation method the most according to claim 1, it is characterised in that described porous matrix
Material is polyurethane sponge, PVA foam, aerosil.
6. an absorbing material, it is characterised in that described absorbing material uses any one of claim 1-5
Described absorbing material preparation method is prepared from.
Absorbing material the most according to claim 6, it is characterised in that the nanometer in described absorbing material
Particle concentration graded.
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| CN201610266170.3A CN105907367B (en) | 2016-04-26 | 2016-04-26 | Absorbing material preparation method and the absorbing material of formation |
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| CN201610266170.3A CN105907367B (en) | 2016-04-26 | 2016-04-26 | Absorbing material preparation method and the absorbing material of formation |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340726A (en) * | 2016-10-31 | 2017-01-18 | 中国工程物理研究院激光聚变研究中心 | Magnetic conductive nano-metal/carbon airgel absorbing material and the preparation method thereof |
| CN106947256A (en) * | 2017-04-20 | 2017-07-14 | 上海为然环保科技有限公司 | Composite wave-suction material for medical apparatus |
| CN107360707A (en) * | 2017-07-19 | 2017-11-17 | 深圳源广安智能科技有限公司 | A kind of wave-absorber structure comprising grapheme material |
| CN107835625A (en) * | 2017-09-18 | 2018-03-23 | 浙江理工大学 | Porous flake cobalt/carbon composite wave-suction material and preparation method thereof |
| CN108084695A (en) * | 2016-11-22 | 2018-05-29 | 洛阳尖端技术研究院 | A kind of rubber substrate absorbing material and preparation method thereof |
| WO2018157399A1 (en) * | 2017-03-03 | 2018-09-07 | 深圳市佩成科技有限责任公司 | Preparation method for fe3o4/mwcnts-paraffin composite material |
| CN109112341A (en) * | 2018-07-29 | 2019-01-01 | 浙江大学 | Layer stephanoporate nickel cobalt (alloy)-carbon composite block material preparation method with electromagnetic wave absorption performance |
| CN109257915A (en) * | 2018-09-11 | 2019-01-22 | 铱格斯曼航空科技集团有限公司 | A kind of cobalt nickel/aerosil composite wave-suction material and preparation method thereof |
| CN111623404A (en) * | 2019-02-27 | 2020-09-04 | 天津大学 | Bathroom heater with air purification function |
| CN112457045A (en) * | 2020-10-28 | 2021-03-09 | 震赛智能科技江苏有限公司 | Preparation method of wave-absorbing material |
| CN112736214A (en) * | 2021-01-19 | 2021-04-30 | Tcl华星光电技术有限公司 | Preparation method of light emitting layer and display panel |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340726B (en) * | 2016-10-31 | 2019-01-25 | 中国工程物理研究院激光聚变研究中心 | Magnetic conductive nano metal/carbon aerogels absorbing material and preparation method thereof |
| CN106340726A (en) * | 2016-10-31 | 2017-01-18 | 中国工程物理研究院激光聚变研究中心 | Magnetic conductive nano-metal/carbon airgel absorbing material and the preparation method thereof |
| CN108084695A (en) * | 2016-11-22 | 2018-05-29 | 洛阳尖端技术研究院 | A kind of rubber substrate absorbing material and preparation method thereof |
| WO2018157399A1 (en) * | 2017-03-03 | 2018-09-07 | 深圳市佩成科技有限责任公司 | Preparation method for fe3o4/mwcnts-paraffin composite material |
| CN106947256A (en) * | 2017-04-20 | 2017-07-14 | 上海为然环保科技有限公司 | Composite wave-suction material for medical apparatus |
| CN107360707A (en) * | 2017-07-19 | 2017-11-17 | 深圳源广安智能科技有限公司 | A kind of wave-absorber structure comprising grapheme material |
| CN107835625A (en) * | 2017-09-18 | 2018-03-23 | 浙江理工大学 | Porous flake cobalt/carbon composite wave-suction material and preparation method thereof |
| CN107835625B (en) * | 2017-09-18 | 2020-06-02 | 浙江理工大学 | Porous sheet cobalt/carbon composite wave-absorbing material and preparation method thereof |
| CN109112341A (en) * | 2018-07-29 | 2019-01-01 | 浙江大学 | Layer stephanoporate nickel cobalt (alloy)-carbon composite block material preparation method with electromagnetic wave absorption performance |
| CN109112341B (en) * | 2018-07-29 | 2020-02-21 | 浙江大学 | Preparation method of hierarchical porous nickel-cobalt alloy-carbon composite block material with electromagnetic wave absorption performance |
| CN109257915A (en) * | 2018-09-11 | 2019-01-22 | 铱格斯曼航空科技集团有限公司 | A kind of cobalt nickel/aerosil composite wave-suction material and preparation method thereof |
| CN111623404A (en) * | 2019-02-27 | 2020-09-04 | 天津大学 | Bathroom heater with air purification function |
| CN112457045A (en) * | 2020-10-28 | 2021-03-09 | 震赛智能科技江苏有限公司 | Preparation method of wave-absorbing material |
| CN112736214A (en) * | 2021-01-19 | 2021-04-30 | Tcl华星光电技术有限公司 | Preparation method of light emitting layer and display panel |
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| CN105907367B (en) | 2018-03-02 |
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