CN104831579B - Inhale high temperature resistant extrusion coating paper of ripple and preparation method thereof - Google Patents
Inhale high temperature resistant extrusion coating paper of ripple and preparation method thereof Download PDFInfo
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- CN104831579B CN104831579B CN201510173677.XA CN201510173677A CN104831579B CN 104831579 B CN104831579 B CN 104831579B CN 201510173677 A CN201510173677 A CN 201510173677A CN 104831579 B CN104831579 B CN 104831579B
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Abstract
The invention discloses and a kind of inhale the high temperature resistant extrusion coating paper of ripple, the one-tenth of following weight/mass percentage composition be grouped into: structural fibers 10% 68.8%, carbon fiber 0.2% 10% and bonding pulp 30% 80%.The invention also discloses a kind of preparation method inhaling the high temperature resistant extrusion coating paper of ripple.The high temperature resistant extrusion coating paper of suction ripple of the present invention, by joining in structural fibers by the carbon fiber with absorbing property, the carbon fiber portion with suction wave energy will not peel off from extrusion coating paper overall structure, it is ensured that the lasting stability of absorbing property；And the anti-flammability of structural fibers is preferable, can the effectively isolating oxygen erosion to carbon fiber, and high temperature resistant, it is ensured that extrusion coating paper serviceability at high temperature.
Description
Technical field
The invention belongs to extrusion coating paper technical field, be specifically related to a kind of suction high temperature resistant extrusion coating paper of ripple and preparation side thereof
Method.
Background technology
Wave-absorbing and camouflage material is by realizing at surface-coated microwave absorbing coating at present.Microwave absorbing coating is by having suction
The granule of ripple performance and the bonding agent with adhesive effect obtain after mixing.It is coated onto needing stealthy
After above material, such as unmanned plane, guided missile, warship etc..Owing in microwave absorbing coating, the granule of absorbing property exposes
In atmosphere, easily by the oxygen corrosion in air, therefore, there is easily peeling, than great, use in microwave absorbing coating
Life-span is short, cannot the defect such as load-bearing.
Summary of the invention
The above-mentioned deficiency aiming to overcome that prior art of the embodiment of the present invention, it is provided that a kind of suction ripple is high temperature resistant
Extrusion coating paper, its have be difficult to peel off, proportion is little, length in service life can the performance such as load-bearing.
The another object of the embodiment of the present invention is to overcome the above-mentioned deficiency of prior art, it is provided that a kind of suction ripple is resistance to
The preparation method of high temperature extrusion coating paper, it is possible to preparation have be difficult to peel off, proportion is little, length in service life can holding
The extrusion coating paper of performance such as heavily.
In order to realize foregoing invention purpose, the technical scheme of the embodiment of the present invention is as follows:
A kind of suction high temperature resistant extrusion coating paper of ripple, is grouped into by the one-tenth of following weight/mass percentage composition: structural fibers
10%-68.8%, carbon fiber 0.2%-10% and bonding pulp 30%-80%.
A kind of preparation method inhaling the high temperature resistant extrusion coating paper of ripple, including:
Material preparation by following weight/mass percentage composition: structural fibers 10%-68.8%, carbon fiber 0.2%-10%
With bonding pulp 30%-80%；
Discongest after described carbon fiber and described structural fibers are mixed, prepare described carbon fiber and described structure is fine
First serosity that total mass concentration is 0.01%～8% of dimension；
Described bonding pulp is discongested, prepares mass concentration is 0.2%～10% the second of described bonding pulp
Serosity；
By described first serosity and described second serosity mixing, slurrying, prepared blank paper of manufacturing paper with pulp；
By the described wet water of blank paper, keeping mass dryness fraction is 65%～85%；
Described blank paper is rolled into the suction high temperature resistant extrusion coating paper of ripple.
The high temperature resistant extrusion coating paper of suction ripple that the embodiment of the present invention provides, by adding the carbon fiber with absorbing property
Entering in structural fibers, the carbon fiber portion with suction wave energy will not peel off from extrusion coating paper overall structure,
Ensure that the lasting stability of absorbing property；And the anti-flammability of structural fibers is preferable, can effectively isolating oxygen to carbon
The erosion of fiber, and high temperature resistant, it is ensured that extrusion coating paper serviceability at high temperature.
The preparation method inhaling the high temperature resistant extrusion coating paper of ripple that the embodiment of the present invention provides, technique is simple, can facilitate
Ground preparation have be difficult to peel off, proportion is little, length in service life can the extrusion coating paper of the performance such as load-bearing.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment,
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to
Explain the present invention, be not intended to limit the present invention.
Embodiments provide a kind of suction high temperature resistant extrusion coating paper of ripple.This extrusion coating paper is contained by following percent mass
The one-tenth of amount is grouped into: structural fibers 10%-68.8%, carbon fiber 0.2%-10% and bonding pulp 30%-80%.
Wherein, structural fibers role is the mechanical property strengthening extrusion coating paper.The work that bonding pulp is risen
With being bonding, filling up the space of extrusion coating paper.Carbon fiber role is to inhale ripple.
This high temperature resistant extrusion coating paper of suction ripple, by joining in structural fibers by the carbon fiber with absorbing property, has
There is the carbon fiber portion inhaling wave energy will not peel off from extrusion coating paper overall structure, it is ensured that holding of absorbing property
The most stable；And the anti-flammability of structural fibers is preferable, can the effectively isolating oxygen erosion to carbon fiber, the most resistance to height
Temperature, it is ensured that extrusion coating paper serviceability at high temperature.
Specifically, carbon fiber is made up of the first carbon fiber and the second carbon fiber.First carbon fiber be perpendicular to axle
To cross section be triangle, the second carbon fiber be perpendicular to axial cross section for circle.The present invention adds two kinds
The carbon fiber of different cross section shape, the carbon fiber specific surface area of triangular cross-sectional shape is bigger, and surface curvature increases
Add, cause it to be easier under electromagnetic wave polarization, surface accumulation more charge, form macroscopic view dipole, increase
Strong fiber polarizability, thus improve the absorbing property of extrusion coating paper；The carbon fiber of circular section shape is joined
Close the carbon fiber of triangular-section, form similar microwave dark room structure；And the ratio of two kinds of carbon fibers of adjustable
Example controls the distance between triangular section carbon fibre, to reaching optimal wave-absorbing effect.Therefore, these two kinds
The carbon fiber of cross sectional shape is used in mixed way and can improve absorbing property.
Arrangement, wherein, at least part of first carbon fiber and the second carbon fiber phase it is mutually perpendicular between this carbon fiber
Vertically it is arranged alternately mutually.Such as, the first carbon fiber can be perpendicular to the second carbon fiber, simultaneously another second carbon
Fiber can be parallel to this first carbon fiber, both perpendicular to the second above-mentioned carbon fiber, and both perpendicular to
Another first carbon fiber.Preferably above two carbon fiber arrangement in extrusion coating paper is rendered as vertically being arranged alternately
Form.Use the cylinder technology of manufacturing paper with pulp commonly used in the art can realize the arrangement state of two kinds of carbon fibers.Three
The carbon fiber of angle section suffered shearing force during manufacturing paper with pulp, higher than the carbon fiber of circular cross-section, was being manufactured paper with pulp
Cheng Zhong, mainly along longitudinal arrangement, and the carbon fiber of circular cross-section is mainly along being perpendicular to machine direction arrangement,
Thus realize two kinds of carbon fibers and be mutually perpendicular to arrangement.
The absorbing property of extrusion coating paper is had conclusive by above two carbon fiber arrangement form in extrusion coating paper
Impact.Electric conduction of carbon fiber function admirable, the absorption of electromagnetic wave is mainly by eddy-current loss and phase cancellation by it
Produce, be typical resistance loss type absorbent.Carbon fiber to the absorption of electromagnetic wave on its arragement direction
It is anisotropic, the electromagnetic wave being parallel to carbon fiber arragement direction is lost relatively big, and fine to being perpendicular to carbon
The electromagnetic wave of dimension arragement direction is the most lossless.Employing is mutually perpendicular to arrangement mode, and carbon fiber is in extrusion coating paper
Forming conductive network, the electromagnetic wave of all directions the most all produces bigger conduction electric current, and now eddy current damages
Consume bigger；On the other hand, it is mutually perpendicular between the carbon fiber of arrangement to produce electromagnetic radiation, and constant amplitude, phase
Potential difference is that the electromagnetic radiation as waves of 180 ° is cancelled out each other, i.e. phase cancellation, the reflection of less electromagnetic wave, electromagnetic wave
Loss is strengthened, thus absorbing property increases.
The mass ratio of this first carbon fiber and this second carbon fiber is 1:3～5.Two kinds of carbon fibres of above-mentioned mass ratio
Dimension can ensure that extrusion coating paper is internally formed conductive network path, is unlikely to again too strong to reflection of electromagnetic wave simultaneously,
Ensure that extrusion coating paper has preferable absorbability to electromagnetic wave under broad frequency band.When the first carbon fiber and second
When carbon fiber mass ratio is less than 1:3, the pyramid density that the first carbon fiber is formed is less, triangular-section carbon
Bundle pitch is from relatively big, and the electromagnetic wavelength producing phase cancellation is relatively big, the extrusion coating paper maximum to electromagnetic wave
Absworption peak moves toward low frequency.When the first carbon fiber and the second carbon fiber mass ratio are higher than 1:5, the first carbon is fine
The pyramid via density that dimension is formed is relatively big, and bundle pitch increases from reduction, the wave frequency of loss, multiple
Combined paper to electromagnetic wave maximum absorption band toward high-frequency mobile.In above-mentioned two situations, the extrusion coating paper suction to electromagnetic wave
Receive frequency band all can narrow.
A length of the 0.5 of this first carbon fiber～3mm.A length of the 3 of this second carbon fiber～7mm.
First carbon fiber of above-mentioned length can form conductive network, meets absorbing property requirement, and dispersibility is relatively
Good.First carbon fiber is longer than 3mm and is then difficult to dispersion, easily reunites in extrusion coating paper, it is impossible to it is complete clear to be formed
Conductive network.If the first carbon fiber is shorter than 0.5mm, then cannot build formation network structure.Above-mentioned length
The second carbon fiber well can be combined with structural fibers and bonding pulp, and be dispersed in extrusion coating paper, if
Length is longer than 7mm, and dispersion difficulty increases, and is easily generated resonance phenomena, causes electromagnetic consumable to reduce, be unfavorable for
Improve the absorbing property of extrusion coating paper.
Specifically, structural fibers is selected from Fanglun 1313, poly-paraphenylene terephthalamide to benzene two
At least one in amine fiber and aromatic polyester fibres.
Above-mentioned Fanglun 1313, Fanglun 1414, aromatic series
The anti-flammability of polyester fiber is preferable, can the effectively isolating oxygen erosion to carbon fiber, and high temperature resistant, it is ensured that
Serviceability under absorbent structure part high temperature.
Specifically, bonding pulp is that poly-isophthaloyl m-xylene diamine pulp and/or poly-paraphenylene terephthalamide are to benzene
Dimethylamine pulp.
The embodiment of the present invention additionally provides a kind of above-mentioned preparation method inhaling the high temperature resistant extrusion coating paper of ripple, including such as
Under step:
Step S01: by the material preparation of following weight/mass percentage composition: structural fibers 10%-68.8%, carbon are fine
Dimension 0.2%-10% and bonding pulp 30%-80%.
Step S02: discongest after carbon fiber and structural fibers being mixed, prepares the total of carbon fiber and structural fibers
Mass concentration is first serosity of 0.01%～8%.
Step S03: discongested by bonding pulp, prepares mass concentration is 0.2%～10% the second of bonding pulp
Serosity.
Step S04: the first serosity and the second serosity are mixed, slurrying, prepared blank paper of manufacturing paper with pulp.
Step S05: by wet for blank paper water, keeping mass dryness fraction is 65%～85%.
Step S06: blank paper is rolled into the suction high temperature resistant extrusion coating paper of ripple.
The high temperature resistant extrusion coating paper of ripple of inhaling prepared according to above-mentioned steps is grouped by the one-tenth of following weight/mass percentage composition
Become: structural fibers 10%-68.8%, carbon fiber 0.2%-10% and bonding pulp 30%-80%.
Above-mentioned preparation process, as do not specialized, is carried out the most at normal temperatures.
Specifically, the time discongested after carbon fiber and structural fibers being mixed in step S02 is 10～45min.
The time discongested by bonding pulp in step S03 is 1～30min.By the temperature of blank paper hot rolling in step S06
Degree is 260～295 DEG C.
Embodiment 1
Material preparation by following weight/mass percentage composition: Fanglun 1313 68.8%, carbon
Fiber 0.2%, poly-isophthaloyl m-xylene diamine pulp 30%.Wherein carbon fiber is by that mass ratio is 1:3
One carbon fiber and the second carbon fiber composition.Wherein, a length of the 0.5～3mm of the first carbon fiber.Second carbon is fine
A length of the 3～7mm of dimension.
Fanglun 1313, carbon fiber are discongested 15min in blender, prepares the first slurry
Liquid.Poly-isophthaloyl m-xylene diamine pulp is discongested 30min in blender, obtains the second serosity.All
Even mixing the first serosity and the second serosity, slurrying, to manufacture paper with pulp molding through cylinder mould machine, preliminary drying prepares blank
Paper.Blank paper, after wet water, balances more than 10 hours, and keeping mass dryness fraction is 65%.Control calender temperature to exist
260 DEG C, obtain blank paper pressur rolling forming inhaling the high temperature resistant extrusion coating paper of ripple.The surface property of this extrusion coating paper and mechanics
Excellent performance, specific performance sees table 1.
Embodiment 2
Material preparation by following weight/mass percentage composition: structural fibers 10%, carbon fiber 10%, poly-isophthalic two
Formyl m-xylene diamine pulp 80%.Wherein, structural fibers by Fanglun 1313 and gathers
Poly P phenylene diamine terephthalamide fiber is constituted for 2:1 in mass ratio.Wherein carbon fiber is the first of 1:4 by mass ratio
Carbon fiber and the second carbon fiber composition.Wherein, a length of the 0.5～3mm of the first carbon fiber.Second carbon fiber
A length of 3～7mm.
Structural fibers, carbon fiber are discongested 10min in blender, prepares the first serosity.By poly-isophthalic diformazan
Acyl m-xylene diamine pulp discongests 30min in blender, obtains the second serosity.Uniformly mixing the first serosity and
Second serosity, slurrying, to manufacture paper with pulp molding through cylinder mould machine, preliminary drying prepares blank paper.Blank paper is through wet water
After, balance more than 10 hours, keeping mass dryness fraction is 70%.Control calender temperature is at 295 DEG C, by blank letterweight
The type of rolling into obtains inhaling the high temperature resistant extrusion coating paper of ripple.The surface property of this extrusion coating paper and excellent in mechanical performance, concrete
Table 1 can be seen.
Embodiment 3
Material preparation by following weight/mass percentage composition: structural fibers 40%, carbon fiber 5%, poly-isophthalic diformazan
Acyl m-xylene diamine pulp 55%.Wherein, structural fibers is by Fanglun 1313 and aromatics
Polyester fiber is constituted for 2:1 in mass ratio.Carbon fiber is by the first carbon fiber that mass ratio is 1:5 and the second carbon fiber
Composition.Wherein, a length of the 0.5～3mm of the first carbon fiber.A length of the 3 of second carbon fiber～7mm.
Structural fibers, carbon fiber are discongested 20min in blender, prepares the first serosity.By poly-isophthalic diformazan
Acyl m-xylene diamine pulp discongests 10min in blender, obtains the second serosity.Uniformly mixing the first serosity and
Second serosity, slurrying, to manufacture paper with pulp molding through cylinder mould machine, preliminary drying prepares blank paper.Blank paper is through wet water
After, balance more than 10 hours, keeping mass dryness fraction is 85%.Control calender temperature is at 280 DEG C, by blank letterweight
The type of rolling into obtains inhaling the high temperature resistant extrusion coating paper of ripple.The surface property of this extrusion coating paper and excellent in mechanical performance, concrete
Table 1 can be seen.
Embodiment 4
Material preparation by following weight/mass percentage composition: Fanglun 1313 58%, carbon are fine
Dimension 2%, PPTA pulp 40%.Wherein carbon fiber is fine by the first carbon that mass ratio is 1:5
Peacekeeping the second carbon fiber forms.Wherein, a length of the 0.5～3mm of the first carbon fiber.The length of the second carbon fiber
Degree is 3～7mm.
Fanglun 1313, carbon fiber are discongested 45min in blender, prepares the first slurry
Liquid.Poly-isophthaloyl m-xylene diamine pulp is discongested 1min in blender, obtains the second serosity.All
Even mixing the first serosity and the second serosity, slurrying, to manufacture paper with pulp molding through cylinder mould machine, preliminary drying prepares blank
Paper.Blank paper, after wet water, balances more than 10 hours, and keeping mass dryness fraction is 750%.Control calender temperature to exist
270 DEG C, obtain blank paper pressur rolling forming inhaling the high temperature resistant extrusion coating paper of ripple.The surface property of this extrusion coating paper and mechanics
Excellent performance, specific performance sees table 1.
The surface property inhaling the high temperature resistant extrusion coating paper of ripple of each embodiment of table 1 and mechanical property
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Extrusion coating paper weight/the g/cm of unit are2 | 61.3 | 65 | 64.2 | 63.5 |
| Thickness/mm | 0.078 | 0.08 | 0.085 | 0.079 |
| Tensile strength/kN/m | 4.2 | 2.0 | 3.8 | 4.0 |
| Percentage elongation/% | 7.6 | 2.5 | 4.4 | 6.4 |
| Tearability/mN | 3325 | 2185 | 3011 | 3225 |
| Surface resistivity Ω m | 1×1011 | 2.1×10-4 | 1.4×10-8 | 2.6×105 |
As it can be seen from table 1 owing to structural fibers and bonding pulp are non-conductive, electric conduction of carbon fiber, carbon fiber contains
Amount changes greatly, so the minor variations of carbon fiber addition all can cause the change that resistance is bigger.Structure is fine
Dimension hplc increases, and the tensile strength of extrusion coating paper can increase, and tearability reduces.Structural fibers is made in extrusion coating paper
For skeleton, acting primarily as potentiation, therefore, structural fibers content increases, and the strength of materials increases.Bonding slurry
Dregs of rice content increases, and the active force of storeroom increases, and tearability can increase.
In sum, the high temperature resistant extrusion coating paper of ripple of inhaling of the present invention has good surface property and mechanical property,
Being mainly used in absorbent structure part, weight ratio tradition absorbing material alleviates 40%, and this high temperature resistant extrusion coating paper of suction ripple exists
200 DEG C of life-time service 100,000 hours, the short time expose 300 DEG C at will not be brittle.This high temperature resistant extrusion coating paper of suction ripple
Surface resistivity be 10-4～1011Ω m, has preferable wave absorbtion 18～40GHz, 26～40GHz anti-
Rate of penetrating is at below-10dB.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, all should be included in the present invention
Protection domain within.
Claims (9)
1. inhale the high temperature resistant extrusion coating paper of ripple for one kind, it is characterised in that be grouped into by the one-tenth of following weight/mass percentage composition:
Structural fibers 10%-68.8%, carbon fiber 0.2%-10% and bonding pulp 30%-80%；Described carbon fiber by
First carbon fiber and the second carbon fiber composition, the axial cross section that is perpendicular to of described first carbon fiber is triangle,
The axial cross section that is perpendicular to of described second carbon fiber is circle.
2. the suction high temperature resistant extrusion coating paper of ripple as claimed in claim 1, it is characterised in that: between described carbon fiber
It is mutually perpendicular to arrangement.
3. as claimed in claim 2 inhale the high temperature resistant extrusion coating paper of ripple, it is characterised in that: the most described the
One carbon fiber and described second carbon fiber are mutually perpendicular to be arranged alternately.
4. the suction high temperature resistant extrusion coating paper of ripple as claimed in claim 1, it is characterised in that: described first carbon fiber
It is 1:3～5 with the mass ratio of described second carbon fiber.
5. extrusion coating paper as claimed in claim 1, it is characterised in that: described first carbon fiber a length of
0.5～3mm；And/or, a length of the 3～7mm of described second carbon fiber.
6. the suction high temperature resistant extrusion coating paper of ripple as claimed in claim 1, it is characterised in that: described structural fibers selects
In Fanglun 1313, Fanglun 1414 and aromatic polyester fibres
At least one.
7. the suction high temperature resistant extrusion coating paper of ripple as claimed in claim 1, it is characterised in that: described bonding pulp is
Poly-isophthaloyl m-xylene diamine pulp and/or poly-paraphenylene terephthalamide's p dimethylamine's pulp.
8. the preparation method inhaling the high temperature resistant extrusion coating paper of ripple, it is characterised in that including:
Material preparation by following weight/mass percentage composition: structural fibers 10%-68.8%, carbon fiber 0.2%-10%
With bonding pulp 30%-80%；
Discongest after described carbon fiber and described structural fibers are mixed, prepare described carbon fiber and described structure is fine
First serosity that total mass concentration is 0.01%～8% of dimension；
Described bonding pulp is discongested, prepares mass concentration is 0.2%～10% the second of described bonding pulp
Serosity；
By described first serosity and described second serosity mixing, slurrying, prepared blank paper of manufacturing paper with pulp；
By the described wet water of blank paper, keeping mass dryness fraction is 65%～85%；
Described blank paper is rolled into the suction high temperature resistant extrusion coating paper of ripple.
9. the preparation method inhaling the high temperature resistant extrusion coating paper of ripple as claimed in claim 8, it is characterised in that: described
The time discongested after described carbon fiber and described structural fibers being mixed is 10～45min, and/or, described general
The time that described bonding pulp is discongested is 1～30min, and/or, the described temperature by described blank paper hot rolling is
260～295 DEG C.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144253A (en) * | 2007-08-17 | 2008-03-19 | 钟洲 | High-temperature resistant insulation continuous sheet and manufacturing method thereof |
| CN101392475A (en) * | 2008-09-26 | 2009-03-25 | 成都龙邦新材料有限公司 | Method for preparing synthetic paper containing polysulfone amide precipitation fibers |
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2015
- 2015-04-14 CN CN201510173677.XA patent/CN104831579B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144253A (en) * | 2007-08-17 | 2008-03-19 | 钟洲 | High-temperature resistant insulation continuous sheet and manufacturing method thereof |
| CN101392475A (en) * | 2008-09-26 | 2009-03-25 | 成都龙邦新材料有限公司 | Method for preparing synthetic paper containing polysulfone amide precipitation fibers |
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