CN1544723A - Wave absorbing composite nano-fiber material textile composition and its preparation process - Google Patents
Wave absorbing composite nano-fiber material textile composition and its preparation process Download PDFInfo
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- CN1544723A CN1544723A CNA2003101059930A CN200310105993A CN1544723A CN 1544723 A CN1544723 A CN 1544723A CN A2003101059930 A CNA2003101059930 A CN A2003101059930A CN 200310105993 A CN200310105993 A CN 200310105993A CN 1544723 A CN1544723 A CN 1544723A
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Abstract
The invention relates to a composite fiber material, and the combination contains polyacrylonitrile carbon 80-96, nano silicon carbide 4-20%; nickel powder is 6-20% of the fiber in weight, assistant 5-8%. The steps: making ultrasonic wave vibration, mixing and extrusion on silicon carbide, polyacrylonitrile carbon and assistant to produce compound particles; making copolymerization and commixture on copolymerizable monomer to make polyacrylonitrile carbon wave absorbing fiber; spinning silicon carbide/nickel fiber; making preoxidation, carbonization, graphitization, surface nickel processing and weaving on the spinning to obtain the finished product. It has wide screened wave bands, and high electromagnetic wave absorbing rate, has no secondary pollution. It shortens working procedure, reduces cost, and has the characters of high strength, high modulus, low expansion coefficient, etc.
Description
Technical field
The present invention relates to complex fiber material, particularly inhale ripple composite nano-fiber material weaving composition and preparation method.
Background technology
In 20 end of the centurys, scientific technological advance is rapidly unusual, and material science is a dark horse, and has become with energy technology and information technology to belong to modern civilization three big pillars.At the beginning of 21 century, developing country has dropped into great amount of manpower, financial resources to material science in succession, particularly all material therefor is had higher requirement in fields such as space flight, aviation, traffic, buildings, and wherein the demand to tec fiber grows with each passing day.
At present fibrous raw material is to differential, functionalization and high performance development.As having used fibres in differentiation such as doughnut, different shrinkage fiber in heat insulating material formed, and as functional fibers such as far IR fibres.Especially in fire-retardant and thermal protection field, the heat-resistant fireproof protective clothing of the Nomex fiber weaving of du pont company exploitation, oneself reaches family more than 20 manufacturer, and all oneself introduces to the market the PBI fiber protective clothing of the Basofil fiber of Kennel fiber protective clothing, BASF AG (trimerization ammonia cyanamide base) protective clothing, HOECHST.Constantly the occurring of these fibers proves absolutely, will play the effect of core to the upgrading of industrial and protective clothing function, the update of material.Protective clothing is multi-functional to develop simultaneously, and has both as, the compatibility of fire-retardant and antistatic, chemical defence and wetting thoroughly etc.But from aggregate level, the protective clothing technology of China also has bigger gap compared with developed countries, mainly shows: the basic raw material particularly development and production level of high-tech fiber is lower, thereby has limited the raising and the expansion of safeguard function; Protective clothing kind and level are still very limited; Its research degree of depth and range are also far away from developed country, and key component also needs dependence on import.
In recent years, China had done certain research aspect nanofiber, and had obtained certain achievement, was obtaining major progress aspect far IR fibre, the anti-ultraviolet fibre research especially.
The research development abroad of absorbing material is very fast, and from 70～eighties of 20th century, countries such as the U.S., the former Soviet Union have dropped into a large amount of energy and have been engaged in the research, and has obtained remarkable achievement.Since the nineties, developed country also with its technology as the new technology of first developing in the competitive strategy, but mainly inhale wave technology based on composite coating.
Fast the increasing of electromagnetic wave proof field demand.Electromagnetic wave has been listed in the fourth-largest pollution after air pollution, water pollution, the noise pollution.Secant on May 7th, 1999 all circles of China State Environmental Protection Administration: electromagenetic wave radiation is harmful to body (human body), and state's label is GB8702-88, has included electromagnetic radiation in environmental protection legal management track.Country has clearly stipulated occupational exposure derivation limit value to electromagnetic radiation protection, and the power density of electromagnetic radiation can not surpass 20 μ W/cm
2In living environment, the power density of electromagnetic radiation can not surpass 40 μ W/cm
2
Developed countries such as the U.S., Britain, Japan, Canada, Sweden, Germany, France, Korea S since three, the forties just carries out the research of special type protection fabric; arrived the eighties, the development of U.S. North American Aviation Incorporation prevents the found vest of radar detection and the helmet for the biological strength of protection.To the nineties initial stage, developed country is the radiation hazradial bundle that prevents household electrical appliance, such as micro-wave oven, electromagnetic stove, computer, electric blanket, dust catcher etc. to human body particularly to pregnant woman and children's influence, started that " housewife " wears the shielding apron, shielding unlined long gown and teenager wears the shielding vest, the upsurge of shielding western-style clothes.To middle nineteen nineties, Japan takes the lead in succeeding in developing metalized fibers, carrying out sulfide on common fabric fiber basis handles, domestic mainly many with plated film loomage certificate, with nickel system, copper is that the shielding coating brushing forms screen layer on textile surface, and such protective materials exists poor adhesive force, and gas permeability is poor, wash resistant not, quality is harder.Shield effectiveness is mainly to be reflected into the master.Domestic electromagnetic shielding material is mainly copper mesh, metal fibre, cladded yarn etc., and this product is mainly to be reflected into the master, and absorptivity is low, causes secondary pollution.Military screened room often needs the steel plate manufacturing that reaches about 3 centimeters with thick, but these electromagnetic shielding materials all are restricted at aspects such as shielding properties, promotion prospects.
Summary of the invention
Goal of the invention of the present invention provides a kind of wave-absorption fibre and prevents that electromagenetic wave radiation from polluting, and cost is low, and is easy to process, the suction ripple composite nano-fiber material weaving composition that radiation protection ability is strong.
Another goal of the invention of the present invention provides inhales ripple composite nano-fiber material weaving preparation of compositions method.
The technical scheme that realizes goal of the invention is to solve like this: inhale ripple complex fiber material nano-textile composition, contain the fine basic carbon 80～96% of polypropylene, nanometer beta silicon carbide 4～20% by weight composition; The nickel powder consumption is 1～20% of a fibre weight, auxiliary agent 5～8%, and described auxiliary agent mainly comprises methylformamide.
Inhale ripple composite nano-fiber material weaving preparation method of composition, undertaken by following method step successively:
I, with the fine basic carbon of nanometer silicon B-carbide particle and polypropylene and auxiliary agent through ultrasonic oscillation, mix, twin-screw extrudes even production composite master batch, its ultrasonic oscillation frequency is 30kHZ, the concussion time is 5～15 minutes;
II, with composite master batch and the fine comonomer initator of polypropylene with polymerization, adopt the technology of blending method to introduce in the fine basic carbon of macromolecule polypropylene:
This technology was divided into for two steps:
The first step is made the fine basic carbon of polypropylene, with the fine basic carbon of polypropylene and the silicon B-carbide mixed with 5: 5, makes composite master batch;
Second step composite master batch and the fine basic carbon blend slurrying of polypropylene.Need account for 4～10% mixing ratios of calculating secondary composite master batch and the fine basic carbon of polypropylene, composite master batch: the fine basic carbon of polypropylene=7: 0.8～1.2 according to silicon B-carbide in the content of silicon B-carbide in the composite master batch and the wave-absorption fibre;
III, nanometer silicon B-carbide liquid slurry is made in blend carried out spinning;
IV, utilize CTD-2000 low-temperature plasma ejection-type surface modification treatment equipment that fiber is carried out surface treatment on the fine base carbon fibre of silicon B-carbide polypropylene surface, make fiber surface form the nickel film or the reticulated film of 5～10 nanometers, frequency of utilization is 20khZ, power supply AC200V+15%, power 1500VA, 5～6 minutes fiber treatment time, the fabric resistor rate is controlled at 10～10
3Ω cm scope is made nanometer silicon B-carbide/nickel fiber;
V, the silk that spins carry out pre-oxidation, and oxide isolation is an air, and preoxidation time is 200～250 minutes, and oxidizing temperature is 200 ℃～300 ℃;
The product of VI, pre-oxidation carries out charing, and inert atmosphere is adopted in its charing, and carbonization temperature is 1200 ℃～1600 ℃, and carbonization time is 8 minutes～12 minutes;
VII, carry out the graphitization inert atmosphere again handle after charing, its inert atmosphere treatment temperature is 2000 ℃～3000 ℃, and the time is 4 seconds～10 seconds;
VIII, according to purposes or wave-absorption fibre content, fibre length, arranged distribution, institutional framework parameter, be wave-absorption fibre length and the relation that intercepts electromagnetic wavelength, wave-absorption fibre arrangement pitches and distribution and the relation that intercepts electromagnetic wavelength, organizational structure of fabrics and the relation that intercepts electromagnetic wavelength, have a protection fabric of textile property again at design anti electromagnetic wave, antistatic;
IX, according to above-mentioned design and require to produce series of products.
The present invention compares with existing skill, has following beneficial effect: the shielding wavelength band is wide, electromagnetic wave absorptivity is high, unique properties, does not produce secondary pollution.This technology has solved multiple nano particle absorbing material and the technical problem that the fine base carbon fibre of polypropylene combines, and has overcome the easily difficult problem of disperseing of reunion of nano particle, has shortened production process greatly, has saved cost, and raw material are mixed.Nanometer silicon B-carbide/nickel, serial fiber have high strength, high-modulus, low thermal coefficient of expansion, resistivity can regulate, high temperature resistant, diameter is little, be easy to characteristics such as braiding, is high-performance composite materials.Utilize plasma technology, handle one deck at the silicon B-carbide fiber surface and receive nickel, the fabric resistor rate is controlled at 10～10
3Ω cm scope makes it have good absorbing property.
Lining has " wash and wear ", " at will wearing ", " Machine Washable " performance, and have in the following performance one or more concurrently, as antistatic, permanence antistatic, the wet comfortableness of heat, anti-ultraviolet, grease proofing antifouling, refuse water, antibacterial deodourizing, mothproof, natural flavor, radiation proof and super ANTIPILLING, super-elastic property restore funcitons, some medical functions
Be mainly used in around military project, space flight, microwave relay tower, information security, oil, the high voltage transmission line and protection field and individual protection fields such as household electrical appliance, TV, micro-wave oven, terminal, mobile phone and medical treatment.
Technical indicator
Shield ranges: 400MHZ-12GHZ;
Microwave absorption＞15dB;
Microwave radiation decay＞28dB
Far IR shielding effect＞85%
Ultraviolet ray UPF 〉=41
Antistatic: the cloth density of surface charge＜0.9 μ c/m
2
Resistivity: 10～10
3Ω cm.
Description of drawings
Fig. 1 is preparation method's process chart of the present invention;
Fig. 2 is the microwave attenuation schematic diagram.
The specific embodiment
Accompanying drawing is specific embodiments of the invention
Below in conjunction with accompanying drawing content of the present invention is described further
With reference to shown in Figure 1, inhale ripple composite nano-fiber material weaving preparation method of composition.Undertaken by following method step successively:
I, with the fine basic carbon of nanometer silicon B-carbide particle and polypropylene and auxiliary agent through ultrasonic oscillation, mix, twin-screw extrudes even production composite master batch, its ultrasonic oscillation frequency is 30kHZ, the concussion time is 5～15 minutes;
II, with composite master batch and the fine comonomer initator of polypropylene with polymerization, adopt the technology of blending method to introduce in the fine basic carbon of macromolecule polypropylene:
This technology was divided into for two steps:
The first step is made the fine basic carbon of polypropylene, with the fine basic carbon of polypropylene and the silicon B-carbide mixed with 5: 5, makes composite master batch;
Second step composite master batch and the fine basic carbon blend slurrying of polypropylene.Need account for 4～10% mixing ratios of calculating secondary composite master batch and the fine basic carbon of polypropylene, composite master batch: the fine basic carbon of polypropylene=7: 0.8～1.2 according to silicon B-carbide in the content of silicon B-carbide in the composite master batch and the wave-absorption fibre;
III, nanometer silicon B-carbide liquid slurry is made in blend carried out spinning;
IV, utilize CTD-2000 low-temperature plasma ejection-type surface modification treatment equipment that fiber is carried out surface treatment on the fine base carbon fibre of silicon B-carbide polypropylene surface, make fiber surface form the nickel film or the reticulated film of 5～10 nanometers, frequency of utilization is 20khZ, power supply AC200V+15%, power 1500VA, 5～6 minutes fiber treatment time, the fabric resistor rate is controlled at 10～10
3Ω cm scope is made nanometer silicon B-carbide/nickel fiber;
V, the silk that spins carry out pre-oxidation, and oxide isolation is an air, and preoxidation time is 200～250 minutes, and oxidizing temperature is 200 ℃～300 ℃;
The product of VI, pre-oxidation carries out charing, and inert atmosphere is adopted in its charing, and carbonization temperature is 1200 ℃～1600 ℃, and carbonization time is 8 minutes～12 minutes;
VII, carry out the graphitization inert atmosphere again handle after charing, its inert atmosphere treatment temperature is 2000 ℃～3000 ℃, and the time is 4 seconds～10 seconds;
VIII, according to purposes or wave-absorption fibre content, fibre length, arranged distribution, institutional framework parameter, be wave-absorption fibre length and the relation that intercepts electromagnetic wavelength, wave-absorption fibre arrangement pitches and distribution and the relation that intercepts electromagnetic wavelength, organizational structure of fabrics and the relation that intercepts electromagnetic wavelength, have a protection fabric of textile property again at design anti electromagnetic wave, antistatic;
IX, according to above-mentioned design and require to produce series of products.
Embodiment 1
The present invention contains the fine basic carbon 80～96% of polypropylene, nanometer silicon B-carbide 4～20% by weight composition; The nickel powder consumption is 1～20% of a fibre weight, auxiliary agent 5～8%, auxiliary agent is a methylformamide, preoxidation time is 220～240 minutes, oxidizing temperature is 240 ℃～280 ℃, and carbonization temperature is 1300 ℃～1400 ℃, and carbonization time is 9 minutes～10 minutes, the inert atmosphere treatment temperature is 2500 ℃～2800 ℃, and the time is 6 seconds～8 seconds.
Embodiment 2
Contain the fine basic carbon 85～94% of polypropylene, nanometer beta silicon carbide 8～17% by weight composition; The nickel powder consumption is 5～15% of a fibre weight, auxiliary agent 6～8%, auxiliary agent is a methylformamide, and preoxidation time is 220～240 minutes, and oxidizing temperature is 260 ℃～270 ℃, carbonization temperature is 1300 ℃～1350 ℃, carbonization time is 9 minutes～10 minutes, and the inert atmosphere treatment temperature is 2600 ℃～2700 ℃, and the time is 6 seconds～8 seconds.
Embodiment 3
Contain the fine basic carbon 89～92% of polypropylene, nanometer beta silicon carbide 10～14% by weight composition; The nickel powder consumption is 2～10% of a fibre weight, auxiliary agent 7～8%, auxiliary agent is a methylformamide, and preoxidation time is 220～230 minutes, and oxidizing temperature is 250 ℃～2650 ℃, carbonization temperature is 1300 ℃～1360 ℃, carbonization time is 7～8 minutes, and the inert atmosphere treatment temperature is 2550 ℃～2650 ℃, and the time is 6～7 seconds.
Embodiment 4
Contain the fine basic carbon 80kg of polypropylene, nanometer beta silicon carbide 12kg by weight composition; The nickel powder consumption is 4kg,, methylformamide 4kg, preoxidation time are 220 minutes, and oxidizing temperature is 250 ℃, and carbonization temperature is 1300 ℃, and carbonization time is 9 minutes, and the inert atmosphere treatment temperature is 2500 ℃, and the time is 6 seconds.
Embodiment 5
Contain the fine basic carbon 85kg of polypropylene, nanometer beta silicon carbide 8kg by weight composition; The nickel powder consumption is 0.4～1.2kg, and methylformamide 3kg, preoxidation time are 240 minutes, and oxidizing temperature is 280 ℃, and carbonization temperature is 1400 ℃, and carbonization time is 10 minutes, and the inert atmosphere treatment temperature is 2800 ℃, and the time is 8 seconds.
In sum, this technological design is reasonable, and advanced technology has shortened production process greatly, has saved cost, has started wave-absorption fibre production new way.
Because the size of nano particle is less than the wavelength of microwave, major part is absorbed obstruct when utilizing big specific surface effect of nano particle and electron tunneling effect to make electromagnetic wave by fabric.Nano material is meant the material of the characteristic size of material component in the 1-100nm scope.When the size of a particulate is little during to nanometer scale, its microstructure and performance both be different from the microsystem of atom, molecule, also were different from the bulky grain material meta system that shows eigen character, but between a transition system between the two.The nanoparticle size is little, and specific area is big, has very high surface energy, thereby its chemical property is had a significant impact.After experiment showed, that the particle decentralization is brought up to a certain degree, along with reducing of particle diameter, be positioned at the atomicity of particle surface and the ratio of total atom number and sharply increase, when particle diameter was reduced to 5nm, the surface atom proportion can reach 50%.Because the surface atom number increases, atomicity reduces in the particulate, enable with in electron energy level divide, the level spacing after the division is in the energy range interior (1 * 12 of microwave
-2-1 * 10
-5EV), thus cause new suction ripple passage.Nano material has small-size effect, surface interface effect, quantum size effect and macro quanta tunnel effect owing to himself structural feature, thereby compare with conventional material with component, have many unusual performances at aspects such as catalysis, optics, magnetic, mechanics, aspect electro-magnetic wave absorption, demonstrate good development prospect.
Transmission attenuation as shown in Figure 2.Electromagnetic wave emission source emission electromagnetic wave, when cloth cover was arrived in electromagnetic transmission, a part was reflected, and angle of reflection is 175 °.A part is absorbed, and is converted into other energy.A part penetrates fabric, and it is 34.8 ° that electromagnetic wave penetrates angle.Cloth cover accounts for 30 ~ 60% with wool in the fiber yarn, and nanometer β-SiC/Ni inhales ripple complex fiber material content 8 ~ 12%, other fiber 28 ~ 60%.
The field has a wide range of applications electromagnetic wave in that communication, aerospace industry, military affairs, life be civilian etc.When electromagnetic wave when a kind of medium enters another kind of medium, can produce reflection, refraction, diffraction and phenomenons such as scattering, absorption, so-called anti electromagnetic wave performance, being meant has bigger transmission attenuation when a certain shielding material of electromagnetic wave directive; Thereby reach the effect that makes the attenuation by absorption of electromagnetism wave height.
The purpose of electromagnetic wave shielding mainly contains two aspects: the one, and the electromagnetic field in control internal radiation zone does not make it run off a certain zone; The 2nd, prevent that external radiation from entering a certain zone.Electromagnetic wave can be regarded as by electric field component E and the organic plane wave that is formed by stacking of magnetic-field component H.Shielding electromagnetic waves mainly relies on the reflection of shield, absorption to realize.Under high frequency condition, the shield surface produces eddy current, eddy current produces counter magnetic field and offsets former disturbing magnetic field, produces thermal losses simultaneously.
Electromagnetic wave advances to penetrate, absorbs, multiple phenomenon such as reflection, refraction after running into shielding, and total electromagnetic shielding effectiveness SE should be electromagnetic wave conductively-closed thing reflection loss R, absorption loss A, and interior part is penetrated the summation of loss B, that is:
SE＝R+A+B
R＝(Z
0-Z
1)/(Z
0+Z
1)＝50+10Log(ρ·f)
-1
In the formula: Z
0=(μ
0/ ε
0)
1/2Z
1=(μ
1/ ε
1)
1/2
μ
0And μ
1---the magnetic conductivity of free space and absorbing material;
ε
0And ε
1---the dielectric constant of free space and absorbing material.
ρ: screen specific insulation (Ω cm)
F: frequency (MHz)
D: shielding thickness (cm)
In order not produce reflection, reflectance factor is necessary for zero.Promptly satisfy Z
0=Z
1Or μ
0/ ε
0=μ
1/ ε
1, Here it is desirable absorbing material impedance matching principle.Because the μ of real material is often less than μ
0And ε is greater than ε
0, be difficult to satisfy above-mentioned requirements, thereby adopt the method for impedance transition mechanism transition to reach impedance matching approx in this project.
By formula as can be seen, when f and d one timing, the ρ value has determined the screen layer electric conductivity, and the SE value is high more, and shield effectiveness is good more.The surface atom number of nanoparticle is directly proportional with α/γ substantially with the ratio of particle total atom number, and (γ is particle radii, and α is an atomic radius), the surface atom of nano particle exists a large amount of dangling bonds and distortion of lattice, has bigger activity.The nano particle granularity is more little, and its surface atom is just many more, and its physical and chemical activity is just big more.From the wave-absorbing mechanism angle, absorbing material can be divided into conductivity type and magnetic conduction type two classes.So-called conductivity type absorbing material, promptly when absorbing material is subjected to the external magnetic field induction, produce induced-current in conductor, this induced-current produces the magnetic field opposite with the external magnetic field direction again, thereby offset with external magnetic field, reach the shielding action of electromagnetic field to external world.Magnetic conduction type absorbing material then is by magnetic hystersis loss and ferromagnetic resonance loss and absorb electromagnetic energy in a large number, and electromagnetic energy is converted into heat energy.Nano material is made up of crystalline phase and amorphous phase, the spuious magnetization of domain wall motion appears being unfavorable at material internal for the two-phase soft magnetic materials, make magnetic loss increase, increase with magnetic loss can cause the enhancing of material to the electro-magnetic wave absorption loss, the electromagnetic parameter of macroscopic view reflection material increases, and the magnetic loss of the nano material that Here it is particle diameter is little is greater than the physical essence of the magnetic loss of the big nano material of particle diameter.The wave-sucking performance of nano material increases with the increase of frequency, mainly is the loss because magnetic is burst, and eddy-current loss equal loss's mode has due to the characteristic that the increase with frequency increases.
The series of products that the present invention produced comprise that clothes, cloth, base camp tent, protective cover, shielding ornament materials, antiradar coatings add material.
Claims (7)
1, inhales ripple complex fiber material nano-textile composition, it is characterized in that containing the fine basic carbon 80～96% of polypropylene by weight composition, nanometer beta silicon carbide 4～20%, nickel powder consumption are 1～20% of fibre weight, auxiliary agent 5～8%, described auxiliary agent mainly contains methylformamide.
2, suction ripple complex fiber material nano-textile composition according to claim 1 is characterized in that containing the fine basic carbon 85～94% of polypropylene, nanometer beta silicon carbide 8～17% by weight composition; The nickel powder consumption is 5～15% of a fibre weight, and auxiliary agent 6～8%, described auxiliary agent are methylformamide.
3, suction ripple complex fiber material nano-textile composition according to claim 1 is characterized in that containing the fine basic carbon 89～92% of polypropylene, nanometer beta silicon carbide 10～14% by weight composition; The nickel powder consumption is 10～13% of a fibre weight, and auxiliary agent 7～8%, described auxiliary agent are methylformamide.
4, the described suction ripple of a kind of realization claim 1 complex fiber material nano-textile preparation of compositions method is characterized in that being undertaken by following method step successively:
I, with the fine basic carbon of nanometer silicon B-carbide particle and polypropylene and auxiliary agent through ultrasonic oscillation, mix, twin-screw extrudes even production composite master batch, its ultrasonic oscillation frequency is 30kHZ, the concussion time is 5～15 minutes;
II, with composite master batch and the fine comonomer initator of polypropylene with polymerization, adopt the technology of blending method to introduce in the fine basic carbon of macromolecule polypropylene:
This technology was divided into for two steps:
The first step is made the fine basic carbon of polypropylene, with the fine basic carbon of polypropylene and the silicon B-carbide mixed with 5: 5, makes composite master batch;
Second step composite master batch and the fine basic carbon blend slurrying of polypropylene.Need account for 4～10% mixing ratios of calculating secondary composite master batch and the fine basic carbon of polypropylene, composite master batch: the fine basic carbon of polypropylene=7: 0.8～1.2 according to silicon B-carbide in the content of silicon B-carbide in the composite master batch and the wave-absorption fibre;
III, nanometer silicon B-carbide liquid slurry is made in blend carried out spinning;
IV, utilize CTD-2000 low-temperature plasma ejection-type surface modification treatment equipment that fiber is carried out surface treatment on the fine base carbon fibre of silicon B-carbide polypropylene surface, make fiber surface form the nickel film or the reticulated film of 5～10 nanometers, frequency of utilization is 20khZ, power supply AC200V+15%, power 1500VA, 5～6 minutes fiber treatment time, the fabric resistor rate is controlled at 10～10
3Ω cm scope is made nanometer silicon B-carbide/nickel fiber;
V, the silk that spins carry out pre-oxidation, and oxide isolation is an air, and preoxidation time is 200～250 minutes, and oxidizing temperature is 200 ℃～300 ℃;
The product of VI, pre-oxidation carries out charing, and inert atmosphere is adopted in its charing, and carbonization temperature is 1200 ℃～1600 ℃, and carbonization time is 8 minutes～12 minutes;
VII, carry out the graphitization inert atmosphere again handle after charing, its inert atmosphere treatment temperature is 2000 ℃～3000 ℃, and the time is 4 seconds～10 seconds;
VIII, according to purposes or wave-absorption fibre content, fibre length, arranged distribution, institutional framework parameter, be wave-absorption fibre length and the relation that intercepts electromagnetic wavelength, wave-absorption fibre arrangement pitches and distribution and the relation that intercepts electromagnetic wavelength, organizational structure of fabrics and the relation that intercepts electromagnetic wavelength, have a protection fabric of textile property again at design anti electromagnetic wave, antistatic;
IX, according to above-mentioned design and require to produce series of products.
5, suction ripple complex fiber material nano-textile preparation of compositions method according to claim 4 is characterized in that described preoxidation time is 220～240 minutes, and oxidizing temperature is 240 ℃～280 ℃;
6, suction ripple complex fiber material nano-textile preparation of compositions method according to claim 4 is characterized in that described carbonization temperature is 1300 ℃～1400 ℃, and carbonization time is 9 minutes～10 minutes;
7, suction ripple complex fiber material nano-textile preparation of compositions method according to claim 4 is characterized in that described inert atmosphere treatment temperature is 2500 ℃～2800 ℃, and the time is 6 seconds～8 seconds;
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| CN101385091A (en) * | 2004-12-20 | 2009-03-11 | 全盛研究与开发公司 | Radiation detectable and protective articles |
| CN1710187B (en) * | 2005-07-04 | 2010-05-12 | 西安工程科技学院 | Nano composite metal coated fabric and its preparing process |
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| CN101385091B (en) * | 2004-12-20 | 2012-12-26 | 全盛研究与开发公司 | Radiation protective clothes articles |
| CN1710187B (en) * | 2005-07-04 | 2010-05-12 | 西安工程科技学院 | Nano composite metal coated fabric and its preparing process |
| CN103590123B (en) * | 2013-10-30 | 2015-12-09 | 王静然 | A kind of composite fibre materials |
| CN103556308B (en) * | 2013-10-31 | 2015-10-28 | 香港理工大学 | A kind of radiation shield fibre and preparation method thereof |
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