CN107974869A - A kind of preparation method of highly oriented high filling FeSiAl flexible compound paper - Google Patents
A kind of preparation method of highly oriented high filling FeSiAl flexible compound paper Download PDFInfo
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- CN107974869A CN107974869A CN201711292593.3A CN201711292593A CN107974869A CN 107974869 A CN107974869 A CN 107974869A CN 201711292593 A CN201711292593 A CN 201711292593A CN 107974869 A CN107974869 A CN 107974869A
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- fesial
- filter
- filter cake
- preparation
- high filling
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/002—Tissue paper; Absorbent paper
Abstract
The invention belongs to electromagnetic functional material field, is related to a kind of preparation method of highly oriented high filling FeSiAl flexible compound paper.The invention is characterized in that the method that sand core funnel and polypropylene microporous filter membrane filter, the FeSiAl sheet-like particles of disorientation under natural conditions being consistently oriented in the composite is realized by principle of hydrodynamics；Dissolubility by butyl acetate to polypropylene filter again, realizes the stripping to being attached to composite material on polypropylene filter.The highly oriented high filling FeSiAl flexible compounds paper finally obtained can directly be attached to curved surface and be bent with surface, and provide effectiveness.Equipment that the present invention uses is simple, cost is low, pollution-free；The FeSiAl ultrathin flexibles extrusion coating paper of preparation has high compactedness and highly consistent orientation, has the magnetic conductivity of higher and lower microwave permittivity compared to existing FeSiAl composite materials.
Description
Technical field
The invention belongs to electromagnetic functional material field, is related to a kind of preparation of highly oriented high filling FeSiAl flexible compound paper
Method.
Background technology
Alloy powder in traditional absorbing material when in use must be by all kinds of with basis material such as acrylic resin etc.
The compound form of high molecular material, forms the complete bulk for having a mechanical performance to use.
FeSiAl materials have good high frequency permeability characteristics, are the preferred absorbents of conventional L-band absorbing material.
FeSiAl compactednesses are higher in FeSiAl composite materials, can have stronger magnetic loss effect, that is, stronger absorbing property, but
FeSiAl compactednesses are caused to be difficult more than 35% using conventional resins as matrix, this is both to ensure that the machinery of compound is strong
Degree, but be in order to prevent compound micro-wave dielectric parameter it is excessive caused by electromagnetic parameter mismatch (deterioration absorbing property).The opposing party
Face, FeSiAl are often dispersed in compound matrix material in the form of irregular powder, however, studies have shown that can pass through raising
FeSiAl form factors and degree is consistently oriented to effectively improve magnetic conductivity, therefore the method for being consistently oriented FeSiAl obtains
It is widely studied.
But generally use is consistently oriented method at present, such as bundle etc. should be forced, limited efficacy, does not also solve compactedness
The mismatch problems that the mechanical strength that lifting triggers declines problem and micro-wave dielectric rise triggers.Therefore, there is an urgent need to a kind of energy
Enough realize highly oriented high filling, and keep good electromagnetic performance, the FeSiAl compounds and preparation method thereof of mechanical performance.
The content of the invention
For above-mentioned there are problem or deficiency, for solve the prior art lifted magnetic conductivity improve it is multiple during compactedness
The problem of compound intensity deficiency, micro-wave dielectric raise and composite material surface roughness is high, degree of being consistently oriented is insufficient.The present invention
A kind of preparation method of highly oriented high filling FeSiAl flexible compound paper is provided, based on being consistently oriented FeSiAl preparation methods.
It is ultra-thin to prepare the FeSiAl flexible compound paper of gained, and there is high magnetic permeability.
Technical scheme is as follows：
Step 1：Proportionally divided FeSiAl sheet-like particles and nano-cellulose are dispersed in deionized water
Dispersion liquid A.The nano-cellulose accounts for dispersion liquid A mass ratioes as 0.5 ‰ -5 ‰；The matter of FeSiAl sheet-like particles and nano-cellulose
Measure ratio≤20:1.
Step 2：Using sand core funnel and polypropylene microporous filter membrane, dispersion liquid A is filtered in pressure≤0.1MPa environment, and
Keep suction filtration state at least 6h.It is longer with dispersion liquid A increasing concen-trations, that is, dispersion liquid A concentration higher suction filtration time to filter the time.
Step 3：To have the filter membrane of filter cake obtained by step 2, in 60-80 DEG C of drying, in the pressurization of 5-10MPa pressure at least
10s。
Step 4：Filter membrane stripping technology obtained by step 3 with filter cake is peeled off filter cake and filter membrane, afterwards anhydrous
The polypropylene filter residue adhered to remove on filter cake is rinsed in ethanol, that is, obtains filter cake.
The stripping technology is：Polypropylene filter with filter cake is soaked at least 10s in butyl acetate, is then taken out
It is unfolded on metal plate, finally the polypropylene filter not being completely dissolved is removed.
Step 5：By less than the 80 DEG C drying of step 4 gained filter cake, you can obtain highly oriented high filling FeSiAl flexible compounds
Paper.
Further, dispersion liquid A needs to carry out ultrasonic vibration after preparing in the step 1, and keeps concussion until step
Rapid 2, the time of ultrasonic vibration is not less than 10min.
The invention is characterized in that the method that sand core funnel is filtered with polypropylene microporous filter membrane, real by principle of hydrodynamics
The now FeSiAl sheet-like particles of disorientation under natural conditions being consistently oriented in the composite；Again by butyl acetate to poly-
The dissolubility of propylene filter membrane, realizes the stripping to being attached to composite material on polypropylene filter.The highly oriented height finally obtained is filled out
Curved surface can be directly attached to and be bent with surface by filling FeSiAl flexible compounds paper, and provide effectiveness.
The preparation method of the compound paper materials of FeSiAl provided by the invention：Equipment is simple, cost is low, pollution-free；This method
The FeSiAl ultrathin flexibles extrusion coating paper of preparation has high compactedness and highly consistent orientation, compared to existing FeSiAl composite materials
There are the magnetic conductivity of higher and lower microwave permittivity.
Brief description of the drawings
Fig. 1 (a) is the final scanning electron microscope (SEM) photograph in kind of example 2；Fig. 1 (b) is the final pictorial diagram of example 2；
Fig. 2 is three examples and No yield point FeSiAl composite materials electromagnetic parameter comparison diagram in proportion；
Fig. 3 is three examples and No yield point FeSiAl composite materials 1mm thickness finished product under the electromagnetic parameter in proportion
Inhale ripple Effectiveness Comparison figure.
Embodiment
With reference to the accompanying drawings and examples, technical scheme is described in detail.
Embodiment 1
Step 1：0.02gFeSiAl sheet-like particles and 0.01g nano-celluloses are dispersed in 15ml deionized waters
Obtain dispersion liquid A；Dispersion liquid A carries out the ultrasonic vibration of 20min after preparing.
Step 2：It is clipped in using the polypropylene filter in 0.25 μm of aperture between the sand core layer of Suction filtration device and filter bowl, will be scattered
Liquid A is poured into filter bowl, is evacuated to 0.1MPa by cavity is filtered using circulating water type vacuum pump, is then kept suction filtration state 12h.
Step 3：To have the filter membrane of filter cake obtained by step 2,70 DEG C of drying in an oven, are pressurizeed after taking-up with 7MPa pressure
30s。
Step 4：Taken out after the polypropylene filter obtained by step 3 with filter cake is soaked 30s in butyl acetate, by its
Be unfolded on metal plate, then the polypropylene filter not being completely dissolved wiped off with scraper, then in absolute ethyl alcohol rinse 30s with
The residue adhered on filter cake is removed, that is, obtains filter cake.
Step 5：Step 4 gained filter cake is dried in 70 DEG C of baking oven, you can it is soft to obtain highly oriented high filling FeSiAl
Property extrusion coating paper.
The mass ratio of FeSiAl sheet-like particles and nano-cellulose is adjusted, other conditions are constant, with 0.03gFeSiAl sheets
Particle and 0.01g nano-celluloses and 0.04gFeSiAl sheet-like particles and 0.01g nano-celluloses are as embodiment 2 and 3.
The extrusion coating paper scanning electron microscope analysis obtained to embodiment 2 (shown in such as Fig. 1 (a)), it is seen that the FeSiAl in paper is on chip
Particle degree of being consistently oriented is very high；Fig. 2 shows that example 1 is joined to example 3 and No yield point FeSiAl composite materials electromagnetism in proportion
Number comparison diagram, Fig. 2 (a) are the magnetic conductivity real part comparison diagram of three examples and No yield point FeSiAl composite materials in proportion；Fig. 2
(b) it is the magnetic conductivity imaginary part comparison diagram of three examples and No yield point FeSiAl composite materials in proportion；Fig. 2 (c) is three examples
With the dielectric real part comparison diagram of No yield point FeSiAl composite materials in proportion；Fig. 2 (d) is three examples and No yield point in proportion
The magnetic conductivity imaginary part comparison diagram of FeSiAl composite materials.It can be seen that extrusion coating paper electromagnetic performance produced by the present invention is answered than traditional FeSiAl
Condensation material is more outstanding.
To sum up, the present invention provides a kind of preparation method of the simple and practicable compound paper materials of FeSiAl, this method
The ultrathin flexible extrusion coating paper of highly consistent orientation and high compactedness can be obtained.
Claims (2)
1. a kind of preparation method of highly oriented high filling FeSiAl flexible compound paper, comprises the following steps：
Step 1：Proportionally FeSiAl sheet-like particles and nano-cellulose are disperseed to obtain dispersion liquid A in deionized water, institute
State nano-cellulose and account for dispersion liquid A mass ratioes as 0.5 ‰ -5 ‰, the mass ratio of FeSiAl sheet-like particles and nano-cellulose≤
20:1；
Step 2：Using sand core funnel and polypropylene microporous filter membrane, dispersion liquid A is filtered in pressure≤0.1MPa environment, and keeps
Suction filtration state at least 6h；
Step 3：To have the filter membrane of filter cake obtained by step 2, in 60-80 DEG C of drying, pressurize at least 10s in 5-10MPa pressure；
Step 4：Filter membrane stripping technology obtained by step 3 with filter cake is peeled off filter cake and filter membrane, afterwards in absolute ethyl alcohol
It is middle to rinse the polypropylene filter residue adhered to remove on filter cake, that is, obtain filter cake；
The stripping technology is：Polypropylene filter with filter cake is soaked at least 10s in butyl acetate, is then taken out it
It is unfolded on metal plate, finally the polypropylene filter not being completely dissolved is removed；
Step 5：By less than the 80 DEG C drying of step 4 gained filter cake, you can obtain highly oriented high filling FeSiAl flexible compound paper.
2. the preparation method of highly oriented high filling FeSiAl flexible compound paper as claimed in claim 1, it is characterised in that：The step
Dispersion liquid A needs to carry out ultrasonic vibration after preparing in rapid 1, and keeps concussion until step 2, the time of ultrasonic vibration are not less than
10min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711292593.3A CN107974869B (en) | 2017-12-08 | 2017-12-08 | Preparation method of high-orientation high-filling FeSiAl flexible composite paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711292593.3A CN107974869B (en) | 2017-12-08 | 2017-12-08 | Preparation method of high-orientation high-filling FeSiAl flexible composite paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107974869A true CN107974869A (en) | 2018-05-01 |
| CN107974869B CN107974869B (en) | 2020-07-21 |
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| CN201711292593.3A Active CN107974869B (en) | 2017-12-08 | 2017-12-08 | Preparation method of high-orientation high-filling FeSiAl flexible composite paper |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004327762A (en) * | 2003-04-25 | 2004-11-18 | Matsushita Electric Ind Co Ltd | Composite soft magnetic material |
| CN103966907A (en) * | 2014-04-02 | 2014-08-06 | 上海大学 | Nano cellulose based flexible conductive paper and preparation method thereof |
| CN104004307A (en) * | 2014-04-25 | 2014-08-27 | 电子科技大学 | Uniformly directed sheet FeSiAl powder particle composite material preparation method |
| CN104774346A (en) * | 2015-04-30 | 2015-07-15 | 武汉艾特米克超能新材料科技有限公司 | Light porous wave absorbing film and preparing method thereof |
| CN105694074A (en) * | 2016-03-08 | 2016-06-22 | 北京理工大学 | Preparation method of flexible, fire-resistant and high-dielectric nano composite film |
| CN105992508A (en) * | 2015-01-30 | 2016-10-05 | 苏州驭奇材料科技有限公司 | Novel nanostructure electromagnetic wave absorption complex and manufacturing method thereof |
| CN107128922A (en) * | 2017-04-27 | 2017-09-05 | 陕西科技大学 | A kind of titanium carbide flexible paper and preparation method thereof |
-
2017
- 2017-12-08 CN CN201711292593.3A patent/CN107974869B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004327762A (en) * | 2003-04-25 | 2004-11-18 | Matsushita Electric Ind Co Ltd | Composite soft magnetic material |
| CN103966907A (en) * | 2014-04-02 | 2014-08-06 | 上海大学 | Nano cellulose based flexible conductive paper and preparation method thereof |
| CN104004307A (en) * | 2014-04-25 | 2014-08-27 | 电子科技大学 | Uniformly directed sheet FeSiAl powder particle composite material preparation method |
| CN105992508A (en) * | 2015-01-30 | 2016-10-05 | 苏州驭奇材料科技有限公司 | Novel nanostructure electromagnetic wave absorption complex and manufacturing method thereof |
| CN104774346A (en) * | 2015-04-30 | 2015-07-15 | 武汉艾特米克超能新材料科技有限公司 | Light porous wave absorbing film and preparing method thereof |
| CN105694074A (en) * | 2016-03-08 | 2016-06-22 | 北京理工大学 | Preparation method of flexible, fire-resistant and high-dielectric nano composite film |
| CN107128922A (en) * | 2017-04-27 | 2017-09-05 | 陕西科技大学 | A kind of titanium carbide flexible paper and preparation method thereof |
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| CN107974869B (en) | 2020-07-21 |
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