CN104831577A - 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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- CN104831577A CN104831577A CN201510173124.4A CN201510173124A CN104831577A CN 104831577 A CN104831577 A CN 104831577A CN 201510173124 A CN201510173124 A CN 201510173124A CN 104831577 A CN104831577 A CN 104831577A
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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 composite sheet technical field, be specifically related to a kind of suction wavelength life-span composite sheet and preparation method thereof.
Background technology
Current wave-absorbing and camouflage material is by realizing at surface coating microwave absorbing coating.Microwave absorbing coating is obtained with the bonding agent with adhesive effect by the particle with absorbing property after mixing.Be coated in and needed after above stealthy material, as unmanned plane, guided missile, warship etc., because the particle of absorbing property in microwave absorbing coating exposes in atmosphere, easily by the oxygen corrosion in air, therefore, microwave absorbing coating exists and easily peels off, than the defect such as great, service life is short.
Summary of the invention
The object of the embodiment of the present invention is the above-mentioned deficiency overcoming prior art, provides a kind of and inhales wavelength life-span composite sheet, its have incrust, proportion is little and the performance such as long service life.
Another object of the embodiment of the present invention is the above-mentioned deficiency overcoming prior art, provides a kind of preparation method inhaling wavelength life-span composite sheet, can prepare have incrust, proportion is little and the composite sheet of the performance such as long service life.
In order to realize foregoing invention object, the technical scheme of the embodiment of the present invention is as follows:
A kind of suction wavelength life-span composite sheet, be grouped into by the one-tenth of following mass percentage: structural fibers 20 ~ 80% and viscose fibre 20% ~ 80%, containing inhaling ripple additive in described viscose fibre, the mass percentage that described suction ripple additive accounts for described viscose fibre is 0.1 ~ 20%.
And a kind of preparation method inhaling wavelength life-span composite sheet, comprising:
Material preparation by following mass percentage: structural fibers 20 ~ 80% and viscose fibre 20% ~ 80%, containing inhaling ripple additive in described viscose fibre, the mass percentage that described suction ripple additive accounts for described viscose fibre is 0.1 ~ 20%;
Discongested by described structural fibers, the mass concentration of obtained described structural fibers is first slurries of 0.01% ~ 8%;
Discongested by described viscose fibre, the mass concentration of obtained described viscose fibre is second slurries of 0.2% ~ 10%;
By described first slurries and described second slurries mixing, obtained blank paper of manufacturing paper with pulp;
Wet described blank paper water, keeps mass dryness fraction to be 65% ~ 85%;
Described blank paper is rolled into and inhales wavelength life-span composite sheet.
The suction wavelength life-span composite sheet that the embodiment of the present invention provides, by joining in viscose fibre by the suction ripple additive with absorbing property, makes suction ripple additive be dispersed in viscose fibre, under external force, incrust; Add structural fibers, structural fibers has fire-retardant and resistant to elevated temperatures performance simultaneously, effectively can completely cut off oxygen in air to the corrosion of inhaling ripple additive, extend the service life of composite sheet; And because above-mentioned raw materials is the raw material of light weight, therefore the proportion of composite sheet is little.
The preparation method of the suction wavelength life-span composite sheet that the embodiment of the present invention provides, technical process is simple, can prepare easily have incrust, proportion is little and the composite sheet of the performance such as long service life.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, 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 wavelength life-span composite sheet.This suction wavelength life-span composite sheet is grouped into by the one-tenth of following mass percentage: structural fibers 20 ~ 80% and viscose fibre 20% ~ 80%.Wherein, containing inhaling ripple additive in viscose fibre, the mass percentage that suction ripple additive accounts for viscose fibre is 0.1 ~ 20%.
Wherein, structural fibers role increases the strength of materials, fire-retardant.Viscose fibre role is the adhesion increasing storeroom, space between fiberfill fibers, and isolated air, increases material compactness.Inhaling ripple additive role is inhale ripple.
The suction wavelength life-span composite sheet that the embodiment of the present invention provides, by joining in viscose fibre by the suction ripple additive with absorbing property, makes suction ripple additive be dispersed in viscose fibre, under external force, incrust; Add structural fibers, structural fibers has fire-retardant and resistant to elevated temperatures performance simultaneously, effectively can completely cut off oxygen in air to the corrosion of inhaling ripple additive, extend the service life of composite sheet; And because above-mentioned raw materials is the raw material of light weight, therefore the proportion of composite sheet is little.
Particularly, suction ripple additive is selected from least one in carborundum, graphite, barium titanate, ferrite and carbonyl iron.
Above-mentioned suction ripple additive forms conductive path in composite sheet, and can not overflow from composite sheet, makes this composite sheet long service life, incrust.
Wherein, carborundum, graphite, barium titanate, carbonyl iron are loose structure.The particle diameter of carborundum, graphite, barium titanate, carbonyl iron is less than 1 μm, and specific area is 30 ~ 80m
2/ g, pore volume is 0.1 ~ 0.2cm
3/ g.There is the carborundum of above-mentioned parameter, graphite, barium titanate, carbonyl iron particles have excellent dielectric properties and lower density, stronger to high band electro-magnetic wave absorption, higher specific area is conducive to electromagnetic wave and enters suction ripple granule interior, add electromagnetic wave loss, its emissivity at 8 ~ 18GHz is lower than-10dB.Ferrite selects M type Ba-Fe-O ferrite material particle, and particle diameter is 0.4 μm ~ 0.95 μm.The ferrite particle with above-mentioned parameter has the features such as wide hysteresis curve, high coercivity, monadic magnetocrystalline anisotropy, excellent gyromagnet characteristic, high chemical stability, high-curie temperature and high remanent magnetism, has higher cost performance simultaneously; Particle diameter is less than 0.95 μm, and its degree of orientation being parallel to magnetic direction is high, and not by the impact of magnetic field size.
Particularly, structural fibers is selected from least one in Fanglun 1313, silicon carbide fibre and aromatic polyester fiber.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 resistant to elevated temperatures performance, effectively to the corrosion of inhaling ripple additive, can extend the service life of composite sheet by isolating oxygen.
Particularly, viscose fibre is poly(isophthaloyl metaphenylene diamine) fibrid.This viscose fibre is membranaceous.
Be different from microwave absorbing coating of the prior art, inhale ripple additive and be dispersed in above-mentioned viscose fibre, instead of stick to material surface by binding agent, therefore, above-mentioned viscose fibre can avoid this absorbing material to peel off, be oxidized, and extends the service life of composite sheet.
The embodiment of the present invention additionally provides a kind of preparation method of above-mentioned suction wavelength life-span composite sheet, comprises following step:
Step S01: the material preparation by following mass percentage: structural fibers 20 ~ 80% and viscose fibre 20% ~ 80%, wherein, containing inhaling ripple additive in viscose fibre, the mass percentage that suction ripple additive accounts for viscose fibre is 0.1 ~ 20%.
Step S02: discongested by structural fibers, the mass concentration of obtained structural fibers is first slurries of 0.01% ~ 8%.
Step S03: discongested by viscose fibre, the mass concentration of obtained viscose fibre is second slurries of 0.2% ~ 10%.
Step S04: by the first slurries and the mixing of the second slurries, obtained blank paper of manufacturing paper with pulp.
Step S05: wet blank paper water, keeps mass dryness fraction to be 65% ~ 85%.
Step S06: blank paper is rolled into and inhales wavelength life-span composite sheet.
The suction wavelength life-span composite sheet prepared according to above-mentioned steps is grouped into by the one-tenth of following mass percentage: structural fibers 20 ~ 80% and viscose fibre 20% ~ 80%, containing inhaling ripple additive in viscose fibre, the mass percentage that suction ripple additive accounts for viscose fibre is 0.1 ~ 20%.
Above-mentioned preparation process, as do not specialized, then carries out all at normal temperatures.
Particularly, the time of being discongested by structural fibers in step S02 is 10 ~ 45min.The time of being discongested by viscose fibre in step S03 is 1 ~ 30min.It is 260 ~ 295 DEG C by the temperature of blank paper hot rolling in step S06.
Particularly, suction ripple additive is selected from least one in carborundum, graphite, barium titanate, ferrite and carbonyl iron.Structural fibers is selected from least one in Fanglun 1313, silicon carbide fibre and aromatic polyester.Viscose fibre is poly(isophthaloyl metaphenylene diamine) fibrid.
Wherein the preparation method of poly(isophthaloyl metaphenylene diamine) fibrid comprises following step:
Step S11: after m-phenylene diamine (MPD) being cooled to 5 ~ 20 DEG C, be polymerized in organic solvent with the molar ratio of m-phthaloyl chloride by m-phenylene diamine (MPD) and m-phthaloyl chloride 1:1 ~ 1.05, add simultaneously and inhale ripple additive, obtain poly(isophthaloyl metaphenylene diamine) polymer fluid.
Step S12: DMA and polar solvent are mixed to get precipitating solvent.
Step S13: after poly(isophthaloyl metaphenylene diamine) polymer fluid is cooled to 5 ~ 20 DEG C, mixes precipitating with poly(isophthaloyl metaphenylene diamine) polymer fluid according to the mass ratio of 5 ~ 20:1 by precipitating solvent and obtains initial fibrid.
Step S14: by initial fibrid washing, centrifugal dehydration, obtain poly(isophthaloyl metaphenylene diamine) fibrid.
Wherein, the organic solvent in step S11 is DMA.Polar solvent in step S12 is selected from least one in the aqueous solution of sodium chloride, calcium chloride and potassium chloride.Cleaning solvent is adopted to wash in step S14.Cleaning solvent is the aqueous solution of ethanol.In the aqueous solution of this ethanol, the mass ratio of second alcohol and water is 1:2 ~ 5, is preferably 3:7.
The preparation method of the suction wavelength life-span composite sheet that the embodiment of the present invention provides, technical process is simple, can prepare easily have incrust, proportion is little and the composite sheet of the performance such as long service life.
Embodiment 1
Material preparation by following mass percentage: Fanglun 1313 20% and poly(isophthaloyl metaphenylene diamine) fibrid 80%, wherein, containing carborundum in poly(isophthaloyl metaphenylene diamine) fibrid, the mass percentage that carborundum accounts for poly(isophthaloyl metaphenylene diamine) fibrid is 15%.
The preparation process of this poly(isophthaloyl metaphenylene diamine) fibrid is as follows: after m-phenylene diamine (MPD) being cooled to 15 DEG C, the molar ratio of m-phenylene diamine (MPD) and m-phthaloyl chloride 1:1 is pressed at N with m-phthaloyl chloride, be polymerized in N-dimethylacetylamide, add carborundum simultaneously, obtain poly(isophthaloyl metaphenylene diamine) polymer fluid.The aqueous solution of DMA and sodium chloride is obtained precipitating solvent.After poly(isophthaloyl metaphenylene diamine) polymer fluid is cooled to 5 DEG C, precipitating solvent is mixed precipitating with poly(isophthaloyl metaphenylene diamine) polymer fluid according to the mass ratio of 5:1 and obtains initial fibrid.By solution washing, centrifugal dehydration that the mass ratio of initial fibrid employing second alcohol and water is the ethanol of 3:7, obtain poly(isophthaloyl metaphenylene diamine) fibrid.
Fanglun 1313 is discongested 15min in mixer, and the mass concentration of obtained Fanglun 1313 is first slurries of 0.01%.Poly(isophthaloyl metaphenylene diamine) fibrid is discongested 30min in mixer, and the mass concentration of obtained poly(isophthaloyl metaphenylene diamine) fibrid is second slurries of 0.2%.Homogeneous phase mixing first slurries and the second slurries, slurrying, manufactures paper with pulp through cylinder mould machine shaping, and preliminary oven dry obtains blank paper.Blank paper, after wet water, balances more than 10 hours, keeps mass dryness fraction to be 65%.Controlling calender temperature is 260 DEG C, is obtained by blank paper pressur rolling forming inhaling wavelength life-span composite sheet.The surface property of this composite sheet and excellent in mechanical performance, specific performance is see table 1.
Embodiment 2
Material preparation by following mass percentage: Fanglun 1313 80% and poly(isophthaloyl metaphenylene diamine) fibrid 20%, wherein, containing graphite in poly(isophthaloyl metaphenylene diamine) fibrid, the mass percentage that graphite accounts for poly(isophthaloyl metaphenylene diamine) fibrid is 10%.
The preparation process of this poly(isophthaloyl metaphenylene diamine) fibrid is as follows: after m-phenylene diamine (MPD) being cooled to 10 DEG C, the molar ratio of m-phenylene diamine (MPD) and m-phthaloyl chloride 1:1.05 is pressed at N with m-phthaloyl chloride, be polymerized in N-dimethylacetylamide, add graphite simultaneously, obtain poly(isophthaloyl metaphenylene diamine) polymer fluid.The aqueous solution of DMA and calcium chloride is obtained precipitating solvent.After poly(isophthaloyl metaphenylene diamine) polymer fluid is cooled to 20 DEG C, precipitating solvent is mixed precipitating with poly(isophthaloyl metaphenylene diamine) polymer fluid according to the mass ratio of 20:1 and obtains initial fibrid.By solution washing, centrifugal dehydration that the mass ratio of initial fibrid employing second alcohol and water is the ethanol of 1:2, obtain poly(isophthaloyl metaphenylene diamine) fibrid.
Fanglun 1313 is discongested 45min in mixer, and the mass concentration of obtained Fanglun 1313 is first slurries of 8%.Poly(isophthaloyl metaphenylene diamine) fibrid is discongested 30min in mixer, and the mass concentration of obtained poly(isophthaloyl metaphenylene diamine) fibrid is second slurries of 10%.Homogeneous phase mixing first slurries and the second slurries, slurrying, manufactures paper with pulp through cylinder mould machine shaping, and preliminary oven dry obtains blank paper.Blank paper, after wet water, balances more than 10 hours, keeps mass dryness fraction to be 85%.Controlling calender temperature is 295 DEG C, is obtained by blank paper pressur rolling forming inhaling wavelength life-span composite sheet.The surface property of this composite sheet and excellent in mechanical performance, specific performance is see table 1.
Embodiment 3
Material preparation by following mass percentage: structural fibers 65% and poly(isophthaloyl metaphenylene diamine) fibrid 35%, wherein, structural fibers is made up of by weight for 2:1 Fanglun 1313 and aromatic polyester fibres.Containing barium titanate in poly(isophthaloyl metaphenylene diamine) fibrid, the mass percentage that barium titanate accounts for poly(isophthaloyl metaphenylene diamine) fibrid is 0.1%.
The preparation process of this poly(isophthaloyl metaphenylene diamine) fibrid is as follows: after m-phenylene diamine (MPD) being cooled to 5 DEG C, the molar ratio of m-phenylene diamine (MPD) and m-phthaloyl chloride 1:1 is pressed at N with m-phthaloyl chloride, be polymerized in N-dimethylacetylamide, add barium titanate simultaneously, obtain poly(isophthaloyl metaphenylene diamine) polymer fluid.The aqueous solution of DMA and potassium chloride is obtained precipitating solvent.After poly(isophthaloyl metaphenylene diamine) polymer fluid is cooled to 15 DEG C, precipitating solvent is mixed precipitating with poly(isophthaloyl metaphenylene diamine) polymer fluid according to the mass ratio of 12:1 and obtains initial fibrid.By solution washing, centrifugal dehydration that the mass ratio of initial fibrid employing second alcohol and water is the ethanol of 1:5, obtain poly(isophthaloyl metaphenylene diamine) fibrid.
Structural fibers is discongested 10min in mixer, and the mass concentration of obtained structural fibers is first slurries of 1%.Poly(isophthaloyl metaphenylene diamine) fibrid is discongested 1min in mixer, and the mass concentration of obtained poly(isophthaloyl metaphenylene diamine) fibrid is second slurries of 0.5%.Homogeneous phase mixing first slurries and the second slurries, slurrying, manufactures paper with pulp through cylinder mould machine shaping, and preliminary oven dry obtains blank paper.Blank paper, after wet water, balances more than 10 hours, keeps mass dryness fraction to be 75%.Controlling calender temperature is 280 DEG C, is obtained by blank paper pressur rolling forming inhaling wavelength life-span composite sheet.The surface property of this composite sheet and excellent in mechanical performance, specific performance is see table 1.
Embodiment 4
Material preparation by following mass percentage: structural fibers 45% and poly(isophthaloyl metaphenylene diamine) fibrid 55%, wherein, structural fibers is made up of by weight for 2:1 Fanglun 1313 and silicon carbide fibre.Contain the mixture of ferrite and carbonyl iron in poly(isophthaloyl metaphenylene diamine) fibrid, the mass percentage that ferrite and carbonyl iron account for poly(isophthaloyl metaphenylene diamine) fibrid is 20%.Ferrite and carbonyl iron mix with arbitrary ratio, and in the present embodiment, the mass ratio of ferrite and carbonyl iron is 1:1.
The preparation process of this poly(isophthaloyl metaphenylene diamine) fibrid is as follows: after m-phenylene diamine (MPD) being cooled to 20 DEG C, the molar ratio of m-phenylene diamine (MPD) and m-phthaloyl chloride 1:1.05 is pressed at N with m-phthaloyl chloride, be polymerized in N-dimethylacetylamide, add ferrite and carbonyl iron simultaneously, obtain poly(isophthaloyl metaphenylene diamine) polymer fluid.The aqueous solution of DMA and potassium chloride is obtained precipitating solvent.After poly(isophthaloyl metaphenylene diamine) polymer fluid is cooled to 10 DEG C, precipitating solvent is mixed precipitating with poly(isophthaloyl metaphenylene diamine) polymer fluid according to the mass ratio of 18:1 and obtains initial fibrid.By solution washing, centrifugal dehydration that the mass ratio of initial fibrid employing second alcohol and water is the ethanol of 1:3, obtain poly(isophthaloyl metaphenylene diamine) fibrid.
Structural fibers is discongested 15min in mixer, and the mass concentration of obtained structural fibers is first slurries of 0.5%.Poly(isophthaloyl metaphenylene diamine) fibrid is discongested 30min in mixer, and the mass concentration of obtained poly(isophthaloyl metaphenylene diamine) fibrid is second slurries of 5%.Homogeneous phase mixing first slurries and the second slurries, slurrying, manufactures paper with pulp through cylinder mould machine shaping, and preliminary oven dry obtains blank paper.Blank paper, after wet water, balances more than 10 hours, keeps mass dryness fraction to be 70%.Controlling calender temperature is 270 DEG C, is obtained by blank paper pressur rolling forming inhaling wavelength life-span composite sheet.The surface property of this composite sheet and excellent in mechanical performance, specific performance is see table 1.
The surface property of the suction wavelength life-span composite sheet of each embodiment of table 1 and mechanical property
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Composite sheet weight/the g/cm of unit are 2 | 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 can be seen from Table 1, structural fibers content increases, and its tensile strength can increase, and tearability reduces.This is because structural fibers in composite sheet as skeleton, mainly play humidification.Structural fibers content increases, and the strength of materials increases; Adhesive structure content increases, and the active force of storeroom increases, and tearability can increase.
In sum, suction wavelength life-span composite sheet of the present invention has good surface property and mechanical property, can continue to use 100,000 hours high temperature 200 DEG C, and can the low temperature of resistance to-55 DEG C.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. inhale wavelength life-span composite sheet for one kind, it is characterized in that, be grouped into by the one-tenth of following mass percentage: structural fibers 20 ~ 80% and viscose fibre 20% ~ 80%, containing inhaling ripple additive in described viscose fibre, the mass percentage that described suction ripple additive accounts for described viscose fibre is 0.1 ~ 20%.
2. suction wavelength life-span composite sheet as claimed in claim 1, is characterized in that: described suction ripple additive is selected from least one in carborundum, graphite, barium titanate, ferrite and carbonyl iron.
3. suction wavelength life-span composite sheet as claimed in claim 2, is characterized in that:
The particle diameter of described carborundum, described graphite, described barium titanate and/or described carbonyl iron is less than 1 μm, and specific area is 30 ~ 80m
2/ g, pore volume is 0.1 ~ 0.2cm
3/ g; And/or,
Described ferrite selects M type Ba-Fe-O ferrite material particle, and described ferritic particle diameter is 0.4 μm ~ 0.95 μm.
4. suction wavelength life-span composite sheet as claimed in claim 1, is characterized in that: described structural fibers is selected from least one in Fanglun 1313, silicon carbide fibre and aromatic polyester fiber.
5. suction wavelength life-span composite sheet as claimed in claim 1, is characterized in that: described viscose fibre is poly(isophthaloyl metaphenylene diamine) fibrid.
6. inhale a preparation method for wavelength life-span composite sheet, it is characterized in that, comprising:
Material preparation by following mass percentage: structural fibers 20 ~ 80% and viscose fibre 20% ~ 80%, containing inhaling ripple additive in described viscose fibre, the mass percentage that described suction ripple additive accounts for described viscose fibre is 0.1 ~ 20%;
Discongested by described structural fibers, the mass concentration of obtained described structural fibers is first slurries of 0.01% ~ 8%;
Discongested by described viscose fibre, the mass concentration of obtained described viscose fibre is second slurries of 0.2% ~ 10%;
By described first slurries and described second slurries mixing, obtained blank paper of manufacturing paper with pulp;
Wet described blank paper water, keeps mass dryness fraction to be 65% ~ 85%;
Described blank paper is rolled into and inhales wavelength life-span composite sheet.
7. the preparation method inhaling wavelength life-span composite sheet as claimed in claim 6, it is characterized in that: the described time of being discongested by described structural fibers is 10 ~ 45min, and/or, the described time of being discongested by described viscose fibre is 1 ~ 30min, and/or the described temperature by the hot rolling of described blank paper is 260 ~ 295 DEG C.
8. the preparation method inhaling wavelength life-span composite sheet as claimed in claim 6, it is characterized in that: described viscose fibre is poly(isophthaloyl metaphenylene diamine) fibrid, the preparation method of described poly(isophthaloyl metaphenylene diamine) fibrid comprises:
After m-phenylene diamine (MPD) being cooled to 5 ~ 20 DEG C, be polymerized in organic solvent with the molar ratio of m-phthaloyl chloride by m-phenylene diamine (MPD) and m-phthaloyl chloride 1:1 ~ 1.05, add described suction ripple additive simultaneously, obtain poly(isophthaloyl metaphenylene diamine) polymer fluid;
DMA and polar solvent are mixed to get precipitating solvent;
After described poly(isophthaloyl metaphenylene diamine) polymer fluid is cooled to 5 ~ 20 DEG C, described precipitating solvent is mixed precipitating with described poly(isophthaloyl metaphenylene diamine) polymer fluid according to the mass ratio of 5 ~ 20:1 and obtains initial fibrid;
By described initial fibrid washing, centrifugal dehydration, obtain described poly(isophthaloyl metaphenylene diamine) fibrid.
9. the preparation method inhaling wavelength life-span composite sheet as claimed in claim 8, it is characterized in that: described organic solvent is DMA, and/or described polar solvent is selected from least one in the aqueous solution of sodium chloride, calcium chloride and potassium chloride.
10. the preparation method inhaling wavelength life-span composite sheet as claimed in claim 8, is characterized in that: described by the step of described initial fibrid washing, cleaning solvent is the aqueous solution of ethanol, and the mass ratio of described ethanol and described water is 1:2 ~ 5.
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Cited By (1)
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| CN112680999A (en) * | 2020-12-21 | 2021-04-20 | 宁波日新恒力科技有限公司 | Preparation method of semi-permeable membrane support body with uniform pores |
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| 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 |
| CN103451759A (en) * | 2013-07-23 | 2013-12-18 | 东莞市灿森新材料有限公司 | Preparation method of polyisophthaloyl metaphenylene diamine fibrid |
| 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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|---|---|---|---|---|
| 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 |
| CN103451759A (en) * | 2013-07-23 | 2013-12-18 | 东莞市灿森新材料有限公司 | Preparation method of polyisophthaloyl metaphenylene diamine fibrid |
| 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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| CN112680999A (en) * | 2020-12-21 | 2021-04-20 | 宁波日新恒力科技有限公司 | Preparation method of semi-permeable membrane support body with uniform pores |
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