CN104831577B - Wave-absorption and long-service life composite paper and preparation method thereof - Google Patents
Wave-absorption and long-service life composite paper and preparation method thereof Download PDFInfo
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- CN104831577B CN104831577B CN201510173124.4A CN201510173124A CN104831577B CN 104831577 B CN104831577 B CN 104831577B CN 201510173124 A CN201510173124 A CN 201510173124A CN 104831577 B CN104831577 B CN 104831577B
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Abstract
The present invention discloses wave-absorption and long-service life composite paper, which comprises, by mass, 20-80% of structure fibers and 20-80% of adhesion fibers, wherein the adhesion fibers contain 0.1-20% by mass of a wave-absorption additive. The present invention further discloses a wave-absorption and long-service life composite paper preparation method. According to the wave-absorption and long-service life composite paper of the present invention, the wave-absorption additive having the wave-absorption performance is added to the adhesion fibers so as to uniformly disperse the additive in the composite paper, such that peeling resistance under the external force effect is provided; the structure fibers are added and have characteristics of fire retardation, high temperature resistance, and effectively isolation of corrosion of oxygen in air on the wave-absorption additive so as to prolong the service life of the composite paper; and the raw materials are the lightweight materials, such that the specific gravity of the composite paper is small.
Description
Technical field
The invention belongs to extrusion coating paper technical field, and in particular to a kind of to inhale wavelength life-span extrusion coating paper and preparation method thereof.
Background technology
At present wave-absorbing and camouflage material is realizing by surface-coated microwave absorbing coating.Microwave absorbing coating is by with absorbing property
Granule with obtained with the bonding agent of adhesive effect after mixing.After being coated onto needing above stealthy material, such as nothing
Man-machine, guided missile, warship etc., as the granule of absorbing property in microwave absorbing coating is exposed in atmosphere, easily by the oxygen corrosion in air,
Therefore, there is the easily defect such as peeling, shorter than great, service life in microwave absorbing coating.
The content of the invention
The above-mentioned deficiency for aiming to overcome that prior art of the embodiment of the present invention, there is provided a kind of suction wavelength life-span is combined
Paper, its have be difficult to peel off, proportion is little and the performance such as long service life.
The another object of the embodiment of the present invention is the above-mentioned deficiency for overcoming prior art, there is provided a kind of to inhale the wavelength life-span again
The preparation method of combined paper, can prepare with being difficult to peel off, proportion is little and the extrusion coating paper of the performance such as long service life.
In order to realize foregoing invention purpose, the technical scheme of the embodiment of the present invention is as follows：
It is a kind of to inhale wavelength life-span extrusion coating paper, by following weight/mass percentage composition into being grouped into：20～80% He of structural fibers
Viscose fibre 20%～80%, containing ripple additive is inhaled in the viscose fibre, the suction ripple additive accounts for the viscose fibre
Weight/mass percentage composition be 0.1～20%.
And, a kind of preparation method for inhaling wavelength life-span extrusion coating paper, including：
By the material preparation of following weight/mass percentage composition：Structural fibers 20～80% and viscose fibre 20%～80%, institute
State in viscose fibre containing inhaling ripple additive, the suction ripple additive account for the weight/mass percentage composition of the viscose fibre be 0.1～
20%；
The structural fibers are discongested, the mass concentration that the structural fibers are obtained is 0.01%～8% the first serosity；
The viscose fibre is discongested, the mass concentration that the viscose fibre is obtained is 0.2%～10% the second serosity；
First serosity and second serosity are mixed, prepared blank paper of manufacturing paper with pulp；
By the blank paper wet water, mass dryness fraction is kept to be 65%～85%；
The blank paper is rolled into into suction wavelength life-span extrusion coating paper.
Suction wavelength life-span extrusion coating paper provided in an embodiment of the present invention, by the suction ripple additive with absorbing property is added
To in viscose fibre, suction ripple additive is dispersed in viscose fibre, under external force, be difficult to peel off；Add simultaneously
Structural fibers, structural fibers have fire-retardant and resistant to elevated temperatures performance, corruption of the oxygen that effectively can completely cut off in air to suction ripple additive
Erosion, extends the service life of extrusion coating paper；And as above-mentioned raw materials are the raw material of light weight, therefore the proportion of extrusion coating paper is little.
The preparation method for inhaling wavelength life-span extrusion coating paper provided in an embodiment of the present invention, technical process are simple, can be easily
Prepare with being difficult to peel off, proportion is little and the extrusion coating paper of the performance such as long service life.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to only to explain the present invention
Limit the present invention.
Embodiments provide a kind of suction wavelength life-span extrusion coating paper.The suction wavelength life-span extrusion coating paper is by following quality hundred
Point content into being grouped into：Structural fibers 20～80% and viscose fibre 20%～80%.Wherein, containing suction ripple in viscose fibre
Additive, it is 0.1～20% that suction ripple additive accounts for the weight/mass percentage composition of viscose fibre.
Wherein, structural fibers role is to increase the strength of materials, fire-retardant.Viscose fibre role is to increase material
Adhesion between material, space between fiberfill fibers completely cut off air, increase material compactness.It is to inhale to inhale ripple additive role
Ripple.
Suction wavelength life-span extrusion coating paper provided in an embodiment of the present invention, by the suction ripple additive with absorbing property is added
To in viscose fibre, suction ripple additive is dispersed in viscose fibre, under external force, be difficult to peel off；Add simultaneously
Structural fibers, structural fibers have fire-retardant and resistant to elevated temperatures performance, corruption of the oxygen that effectively can completely cut off in air to suction ripple additive
Erosion, extends the service life of extrusion coating paper；And as above-mentioned raw materials are the raw material of light weight, therefore the proportion of extrusion coating paper is little.
Specifically, inhale at least one of the ripple additive in carborundum, graphite, Barium metatitanate., ferrite and carbonyl iron.
Above-mentioned suction ripple additive forms conductive path in extrusion coating paper, and will not escape from extrusion coating paper so that this is multiple
Combined paper long service life, is difficult to peel off.
Wherein, carborundum, graphite, Barium metatitanate., carbonyl iron are loose structure.Carborundum, graphite, Barium metatitanate., carbonyl iron
Particle diameter is less than 1 μm, and specific surface area is 30～80m2/ g, pore volume are 0.1～0.2cm3/g.Carbonization with above-mentioned parameter
Silicon, graphite, Barium metatitanate., carbonyl iron particles have excellent dielectric properties and relatively low density, to high band electro-magnetic wave absorption compared with
By force, higher specific surface area is conducive to electromagnetic wave to enter inside suction ripple granule, increased electromagnetic wave loss, and which is 8～18GHz's
Emissivity is less than -10dB.Ferrite selects M type Ba-Fe-O ferrite material granules, and particle diameter is 0.4 μm～0.95 μm.With above-mentioned
The ferrite particle of parameter has wide hysteresis curve, high coercivity, monadic magnetocrystalline anisotropy, excellent gyromagnet characteristic, height
Chemical stability, high-curie temperature and the features such as high remanent magnetism, while with higher cost performance；Particle diameter is less than 0.95 μm, its
It is high parallel to the degree of orientation of magnetic direction, and do not affected by magnetic field size.
Specifically, structural fibers are fine selected from Fanglun 1313, silicon carbide fibre and aromatic polyester
At least one in dimension.Said structure fiber has high temperature resistant, fire-retardant, long-life characteristic.
Above-mentioned Fanglun 1313, silicon carbide fibre and aromatic polyester have fire-retardant and high temperature resistant
Performance, can effectively isolating oxygen to inhale ripple additive corrosion, extend the service life of extrusion coating paper.
Specifically, viscose fibre is poly(isophthaloyl metaphenylene diamine) fibrid.The viscose fibre is in membranaceous.
Different from microwave absorbing coating of the prior art, inhale ripple additive and be dispersed in above-mentioned viscose fibre, rather than it is logical
Cross binding agent and stick to material surface, therefore, above-mentioned viscose fibre can avoid the absorbing material from peeling off, oxidation, extend compound
The service life of paper.
The embodiment of the present invention additionally provides a kind of preparation method of above-mentioned suction wavelength life-span extrusion coating paper, including following step
Suddenly：
Step S01：By the material preparation of following weight/mass percentage composition：Structural fibers 20～80% and viscose fibre 20%～
80%, wherein, in viscose fibre containing inhale ripple additive, inhale ripple additive account for viscose fibre weight/mass percentage composition be 0.1～
20%.
Step S02：Structural fibers are discongested, the mass concentration that structural fibers are obtained is 0.01%～8% the first serosity.
Step S03：Viscose fibre is discongested, the mass concentration that viscose fibre is obtained is 0.2%～10% the second serosity.
Step S04：First serosity and the second serosity are mixed, prepared blank paper of manufacturing paper with pulp.
Step S05：By blank paper wet water, mass dryness fraction is kept to be 65%～85%.
Step S06：Blank paper is rolled into into suction wavelength life-span extrusion coating paper.
Wavelength life-span extrusion coating paper is inhaled by following weight/mass percentage composition into being grouped into according to what above-mentioned steps were prepared：Knot
Structure fiber 20～80% and viscose fibre 20%～80%, containing ripple additive is inhaled in viscose fibre, inhale ripple additive and account for bonding
The weight/mass percentage composition of fiber is 0.1～20%.
Above-mentioned preparation process, does not such as specialize, then carries out at normal temperatures.
Specifically, the time in step S02 discongested structural fibers is 10～45min.Viscose fibre is dredged in step S03
The time of solution is 1～30min.In step S06 by the temperature of blank paper hot rolling be 260～295 DEG C.
Specifically, inhale at least one of the ripple additive in carborundum, graphite, Barium metatitanate., ferrite and carbonyl iron.Knot
At least one of the structure fiber in Fanglun 1313, silicon carbide fibre and aromatic polyester.Bonding is fine
Tie up as poly(isophthaloyl metaphenylene diamine) fibrid.
The preparation method of wherein poly(isophthaloyl metaphenylene diamine) fibrid includes the steps：
Step S11：M-diaminobenzene. is cooled to after 5～20 DEG C, m-diaminobenzene. and isophthalic diformazan is pressed with m-phthaloyl chloride
Acyl chlorides 1:1～1.05 molar ratio is polymerized in organic solvent, while add inhaling ripple additive, obtains between poly- isophthaloyl
Phenylenediamine polymer fluid.
Step S12：DMAC N,N' dimethyl acetamide and polar solvent are mixed to get into precipitating solvent.
Step S13：Poly(isophthaloyl metaphenylene diamine) polymer fluid is cooled to after 5～20 DEG C, by precipitating solvent and it is poly- between
Phenyl-diformyl m-diaminobenzene. polymer fluid is according to 5～20:1 mass ratio mixing precipitating obtains initial fibrid.
Step S14：By the washing of initial fibrid, centrifuge dehydration, poly(isophthaloyl metaphenylene diamine) fibrid is obtained.
Wherein, the organic solvent in step S11 is N,N-dimethylacetamide.Polar solvent in step S12 is selected from chlorine
Change at least one in the aqueous solution of sodium, calcium chloride and potassium chloride.Washed using cleaning solvent in step S14.Cleaning solvent is
The aqueous solution of ethanol.In the aqueous solution of the ethanol, the mass ratio of second alcohol and water is 1:2～5, preferably 3:7.
The preparation method for inhaling wavelength life-span extrusion coating paper provided in an embodiment of the present invention, technical process are simple, can be easily
Prepare with being difficult to peel off, proportion is little and the extrusion coating paper of the performance such as long service life.
Embodiment 1
By the material preparation of following weight/mass percentage composition：Fanglun 1313 20% and poly- isophthalic diformazan
Acyl m-diaminobenzene. fibrid 80%, wherein, containing carborundum in poly(isophthaloyl metaphenylene diamine) fibrid, carborundum is accounted for
The weight/mass percentage composition of poly(isophthaloyl metaphenylene diamine) fibrid is 15%.
The preparation process of the poly(isophthaloyl metaphenylene diamine) fibrid is as follows：M-diaminobenzene. is cooled to after 15 DEG C,
M-diaminobenzene. and m-phthaloyl chloride 1 are pressed with m-phthaloyl chloride:1 molar ratio is polymerized in N,N-dimethylacetamide,
Carborundum is added simultaneously, obtains poly(isophthaloyl metaphenylene diamine) polymer fluid.By DMAC N,N' dimethyl acetamide and the water of Sodium Chloride
Solution is mixed to get precipitating solvent.Poly(isophthaloyl metaphenylene diamine) polymer fluid is cooled to after 5 DEG C, by precipitating solvent and it is poly- between
Phenyl-diformyl m-diaminobenzene. polymer fluid is according to 5:1 mass ratio mixing precipitating obtains initial fibrid.By initial fibrid
The mass ratio of second alcohol and water is adopted for 3:The solution washing of 7 ethanol, centrifuge dehydration, obtain poly(isophthaloyl metaphenylene diamine)
Fibrid.
Fanglun 1313 is discongested into 15min in blender, poly- isophthaloyl isophthalic two is obtained
The mass concentration of amine fiber is 0.01% the first serosity.Poly(isophthaloyl metaphenylene diamine) fibrid is dredged in blender
Solution 30min, the mass concentration that poly(isophthaloyl metaphenylene diamine) fibrid is obtained is 0.2% the second serosity.It is uniform to mix
First serosity and the second serosity, slurrying, Jing cylinder mould machines are manufactured paper with pulp molding, and preliminary drying is obtained blank paper.Blank paper Jing after wet water,
Balance more than 10 hours, keeps mass dryness fraction to be 65%.Calender temperature is controlled for 260 DEG C, blank paper pressur rolling forming is obtained inhaling ripple
Long-life extrusion coating paper.The surface property and excellent in mechanical performance of the extrusion coating paper, specific performance is referring to table 1.
Embodiment 2
By the material preparation of following weight/mass percentage composition：Fanglun 1313 80% and poly- isophthalic diformazan
Acyl m-diaminobenzene. fibrid 20%, wherein, containing graphite in poly(isophthaloyl metaphenylene diamine) fibrid, graphite is accounted between gathering
The weight/mass percentage composition of phenyl-diformyl m-diaminobenzene. fibrid is 10%.
The preparation process of the poly(isophthaloyl metaphenylene diamine) fibrid is as follows：M-diaminobenzene. is cooled to after 10 DEG C,
M-diaminobenzene. and m-phthaloyl chloride 1 are pressed with m-phthaloyl chloride:1.05 molar ratio gathers in DMAC N,N' dimethyl acetamide
Close, while adding graphite, obtain poly(isophthaloyl metaphenylene diamine) polymer fluid.By DMAC N,N' dimethyl acetamide and the water of calcium chloride
Solution is mixed to get precipitating solvent.Poly(isophthaloyl metaphenylene diamine) polymer fluid is cooled to after 20 DEG C, by precipitating solvent with it is poly-
Mpd-i polymer fluid is according to 20:1 mass ratio mixing precipitating obtains initial fibrid.Initial precipitating is fine
Dimension adopts the mass ratio of second alcohol and water for 1:The solution washing of 2 ethanol, centrifuge dehydration, obtain poly- isophthaloyl isophthalic two
Amine fibrid.
Fanglun 1313 is discongested into 45min in blender, poly- isophthaloyl isophthalic two is obtained
The mass concentration of amine fiber is 8% the first serosity.Poly(isophthaloyl metaphenylene diamine) fibrid is discongested in blender
30min, the mass concentration that poly(isophthaloyl metaphenylene diamine) fibrid is obtained is 10% the second serosity.Uniform mixing first
Serosity and the second serosity, slurrying, Jing cylinder mould machines are manufactured paper with pulp molding, and preliminary drying is obtained blank paper.Blank paper is balanced Jing after wet water
More than 10 hours, mass dryness fraction is kept to be 85%.Calender temperature is controlled for 295 DEG C, blank paper pressur rolling forming is obtained inhaling the wavelength longevity
Life extrusion coating paper.The surface property and excellent in mechanical performance of the extrusion coating paper, specific performance is referring to table 1.
Embodiment 3
By the material preparation of following weight/mass percentage composition：Structural fibers 65% and poly(isophthaloyl metaphenylene diamine) precipitating are fine
Dimension 35%, wherein, structural fibers are 2 by Fanglun 1313 and aromatic polyester fibres by weight:1 structure
Into.Contain Barium metatitanate. in poly(isophthaloyl metaphenylene diamine) fibrid, Barium metatitanate. accounts for poly(isophthaloyl metaphenylene diamine) precipitating
The weight/mass percentage composition of fiber is 0.1%.
The preparation process of the poly(isophthaloyl metaphenylene diamine) fibrid is as follows：M-diaminobenzene. is cooled to after 5 DEG C, with
M-phthaloyl chloride presses m-diaminobenzene. and m-phthaloyl chloride 1:1 molar ratio is polymerized in N,N-dimethylacetamide, together
When add Barium metatitanate., obtain poly(isophthaloyl metaphenylene diamine) polymer fluid.DMAC N,N' dimethyl acetamide is water-soluble with potassium chloride
Liquid is mixed to get precipitating solvent.Poly(isophthaloyl metaphenylene diamine) polymer fluid is cooled to after 15 DEG C, by precipitating solvent and it is poly- between
Phenyl-diformyl m-diaminobenzene. polymer fluid is according to 12:1 mass ratio mixing precipitating obtains initial fibrid.By initial fibrid
The mass ratio of second alcohol and water is adopted for 1:The solution washing of 5 ethanol, centrifuge dehydration, obtain poly(isophthaloyl metaphenylene diamine)
Fibrid.
Structural fibers are discongested into 10min in blender, the mass concentration that structural fibers are obtained is 1% the first serosity.
Poly(isophthaloyl metaphenylene diamine) fibrid is discongested into 1min in blender, poly(isophthaloyl metaphenylene diamine) precipitating is obtained
The mass concentration of fiber is 0.5% the second serosity.The first serosity of uniform mixing and the second serosity, slurrying, Jing cylinder mould machines are copied
Type is caused, preliminary drying is obtained blank paper.Blank paper is balanced more than 10 hours Jing after wet water, keeps mass dryness fraction to be 75%.Control pressure
Ray machine temperature is 280 DEG C, and blank paper pressur rolling forming is obtained inhaling wavelength life-span extrusion coating paper.The surface property and mechanics of the extrusion coating paper
Excellent performance, specific performance is referring to table 1.
Embodiment 4
By the material preparation of following weight/mass percentage composition：Structural fibers 45% and poly(isophthaloyl metaphenylene diamine) precipitating are fine
Dimension 55%, wherein, structural fibers are 2 by Fanglun 1313 and silicon carbide fibre by weight:1 is constituted.
Mixture containing ferrite and carbonyl iron in poly(isophthaloyl metaphenylene diamine) fibrid, ferrite and carbonyl iron are accounted between gathering
The weight/mass percentage composition of phenyl-diformyl m-diaminobenzene. fibrid is 20%.Ferrite and carbonyl iron are equal with any proportion mixing
Can, in the present embodiment, the mass ratio of ferrite and carbonyl iron is 1:1.
The preparation process of the poly(isophthaloyl metaphenylene diamine) fibrid is as follows：M-diaminobenzene. is cooled to after 20 DEG C,
M-diaminobenzene. and m-phthaloyl chloride 1 are pressed with m-phthaloyl chloride:1.05 molar ratio gathers in DMAC N,N' dimethyl acetamide
Close, while adding ferrite and carbonyl iron, obtain poly(isophthaloyl metaphenylene diamine) polymer fluid.By DMAC N,N' dimethyl acetamide with
The aqueous solution of potassium chloride obtains precipitating solvent.Poly(isophthaloyl metaphenylene diamine) polymer fluid is cooled to after 10 DEG C, will be heavy
Solvent and poly(isophthaloyl metaphenylene diamine) polymer fluid are analysed according to 18:1 mass ratio mixing precipitating obtains initial fibrid.Will
Initial fibrid adopts the mass ratio of second alcohol and water for 1:The solution washing of 3 ethanol, centrifuge dehydration, obtain poly- isophthalic two
Formyl m-diaminobenzene. fibrid.
Structural fibers are discongested into 15min in blender, the mass concentration that structural fibers are obtained is 0.5% the first slurry
Liquid.Poly(isophthaloyl metaphenylene diamine) fibrid is discongested into 30min in blender, poly(isophthaloyl metaphenylene diamine) is obtained
The mass concentration of fibrid is 5% the second serosity.The first serosity of uniform mixing and the second serosity, slurrying, Jing cylinder mould machines
Manufacture paper with pulp molding, preliminary drying is obtained blank paper.Blank paper is balanced more than 10 hours Jing after wet water, keeps mass dryness fraction to be 70%.Control
Calender temperature is 270 DEG C, and blank paper pressur rolling forming is obtained inhaling wavelength life-span extrusion coating paper.The surface property and power of the extrusion coating paper
Excellent performance is learned, specific performance is referring to table 1.
The surface property and mechanical property of the suction wavelength life-span extrusion coating paper of 1 each embodiment of table
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Extrusion coating paper weight/the g/cm of unit area2 | 64.3 | 65.2 | 63.6 | 64.1 |
| Thickness/mm | 0.082 | 0.084 | 0.072 | 0.086 |
| Tensile strength/kN/m | 2.4 | 4.5 | 3.6 | 2.9 |
| Percentage elongation/% | 3.1 | 9.8 | 7.5 | 6.8 |
| Tearability/mN | 1852 | 3427 | 3002 | 2816 |
As it can be seen from table 1 structural fibers content increases, its tensile strength can increase, and tearability is reduced.This is because knot
Structure fiber as skeleton, acts primarily as potentiation in extrusion coating paper.Structural fibers content increases, and the strength of materials increases；Bonding knot
Structure content increases, and the active force increase of storeroom, tearability can increase.
In sum, of the invention wavelength life-span extrusion coating paper of inhaling has good surface property and mechanical property, can continue
In the use 100,000 hours of 200 DEG C of high temperature, and it is resistant to -55 DEG C of low temperature.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., all should be included within protection scope of the present invention.
Claims (7)
1. it is a kind of to inhale wavelength life-span extrusion coating paper, it is characterised in that by following weight/mass percentage composition into being grouped into：Structural fibers 20
～80% and viscose fibre 20%～80%, containing ripple additive is inhaled in the viscose fibre, the suction ripple additive accounts for described
The weight/mass percentage composition of viscose fibre is 0.1～20%；Wherein, the viscose fibre is poly(isophthaloyl metaphenylene diamine) precipitating
Fiber, the preparation method of the poly(isophthaloyl metaphenylene diamine) fibrid include：
M-diaminobenzene. is cooled to after 5～20 DEG C, m-diaminobenzene. and m-phthaloyl chloride 1 is pressed with m-phthaloyl chloride:1～1.05
Molar ratio be polymerized in organic solvent, while add it is described suction ripple additive, obtain poly(isophthaloyl metaphenylene diamine) gather
Close liquid；
DMAC N,N' dimethyl acetamide and polar solvent are mixed to get into precipitating solvent；
The poly(isophthaloyl metaphenylene diamine) polymer fluid is cooled to after 5～20 DEG C, by the precipitating solvent and it is described it is poly- between
Phenyl-diformyl m-diaminobenzene. polymer fluid is according to 5～20:1 mass ratio mixing precipitating obtains initial fibrid；
By the initial fibrid washing, centrifuge dehydration, the poly(isophthaloyl metaphenylene diamine) fibrid is obtained；
At least one for inhaling ripple additive in carborundum, graphite, Barium metatitanate., ferrite and carbonyl iron；
The particle diameter of the carborundum, the graphite, the Barium metatitanate. and/or the carbonyl iron is less than 1 μm, specific surface area
For 30～80m2/ g, pore volume are 0.1～0.2cm3/g；And/or,
The ferrite selects M type Ba-Fe-O ferrite material granules, and the ferritic particle diameter is 0.4 μm～0.95 μm.
It is 2. as claimed in claim 1 to inhale wavelength life-span extrusion coating paper, it is characterised in that：The structural fibers are selected from poly- isophthalic diformazan
At least one in acyl m-diaminobenzene. fiber, silicon carbide fibre and aromatic polyester fiber.
It is 3. as claimed in claim 1 to inhale wavelength life-span extrusion coating paper, it is characterised in that：The organic solvent be N, N- dimethyl second
Amide, and/or, at least one of the polar solvent in the aqueous solution of Sodium Chloride, calcium chloride and potassium chloride.
4. it is a kind of inhale wavelength life-span extrusion coating paper preparation method, it is characterised in that include：By the raw material of following weight/mass percentage composition
Get the raw materials ready：Structural fibers 20～80% and viscose fibre 20%～80%, containing suction ripple additive, the suction in the viscose fibre
It is 0.1～20% that ripple additive accounts for the weight/mass percentage composition of the viscose fibre；
The structural fibers are discongested, the mass concentration that the structural fibers are obtained is 0.01%～8% the first serosity；
The viscose fibre is discongested, the mass concentration that the viscose fibre is obtained is 0.2%～10% the second serosity；
First serosity and second serosity are mixed, prepared blank paper of manufacturing paper with pulp；
By the blank paper wet water, mass dryness fraction is kept to be 65%～85%；
The blank paper is rolled into into suction wavelength life-span extrusion coating paper；
The viscose fibre is poly(isophthaloyl metaphenylene diamine) fibrid, the poly(isophthaloyl metaphenylene diamine) precipitating fibre
The preparation method of dimension includes：
M-diaminobenzene. is cooled to after 5～20 DEG C, m-diaminobenzene. and m-phthaloyl chloride 1 is pressed with m-phthaloyl chloride:1～1.05
Molar ratio be polymerized in organic solvent, while add it is described suction ripple additive, obtain poly(isophthaloyl metaphenylene diamine) gather
Close liquid；
DMAC N,N' dimethyl acetamide and polar solvent are mixed to get into precipitating solvent；
The poly(isophthaloyl metaphenylene diamine) polymer fluid is cooled to after 5～20 DEG C, by the precipitating solvent and it is described it is poly- between
Phenyl-diformyl m-diaminobenzene. polymer fluid is according to 5～20:1 mass ratio mixing precipitating obtains initial fibrid；
By the initial fibrid washing, centrifuge dehydration, the poly(isophthaloyl metaphenylene diamine) fibrid is obtained.
5. the preparation method of wavelength life-span extrusion coating paper is inhaled as claimed in claim 4, it is characterised in that：It is described that the structure is fine
The time that dimension is discongested is 10～45min, and/or, the time that the viscose fibre is discongested is 1～30min, and/or, institute
It is 260～295 DEG C to state the temperature of the blank paper hot rolling.
6. the preparation method of wavelength life-span extrusion coating paper is inhaled as claimed in claim 4, it is characterised in that：The organic solvent is N,
N- dimethyl acetylamide, and/or, the polar solvent in the aqueous solution of Sodium Chloride, calcium chloride and potassium chloride at least
Kind.
7. the preparation method of wavelength life-span extrusion coating paper is inhaled as claimed in claim 4, it is characterised in that：It is described described initially to sink
In the step of analysis fiber wash, it is 1 that cleaning solvent is the mass ratio of the aqueous solution of ethanol, the ethanol and the water:2～5.
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| 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 |
| CN104404814A (en) * | 2014-09-10 | 2015-03-11 | 华南理工大学 | Wave-absorbing paper and preparation method and application thereof |
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