CN104963018B - Conduction/magnetic conduction chemical fibre induced by magnetic field assists spinning moulding device and its production method - Google Patents
Conduction/magnetic conduction chemical fibre induced by magnetic field assists spinning moulding device and its production method Download PDFInfo
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Abstract
The invention discloses a kind of conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device and its production methods, its main feature is that connecting electromagnetic coil (3) is vertical with spinneret (2), spinneret (2) is connect with melt flow channel (1), the hollow part of electromagnetic coil (3) is directed at spinneret center, strand (5) is set to pass through electromagnetic coil hollow part, coil connects DC power supply when spinning, generates the magnetic line of force (4)；Again by magnetic powder, dispersing agent, antioxidant and polymer carry out melt blending, blend melt is squeezed out through metering pump by spinneret orifice, under the action of electromagnetic coil magnetic field, magnetic particle carries out arrangement by magnetic line of force direction and forms fento or bead structure, and strand is through cooling and solidifying, then it is oiled, boundling, drawing-off and thermal finalization, obtains finished product conduction/magnetic conduction composite fibre.
Description
Technical field
The present invention relates to a kind of conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device and its producers
Method belongs to the production technical field of functional fibre.
Background technique
With the continuous development of modern industry and E-consumer industry, the harmfulness of electrostatic and electromagnetic radiation is constantly aobvious
It is existing.Due to the raising of industrial processes speed, because accident is increasing caused by electrostatic, chemical fibre is not only made due to electrostatic phenomenon
At spinning and weaving difficulty, and snugness of fit is poor.It can also cause to shock by electricity, or even cause serious disaster.Electrostatic is firer, changes
The industries such as work, oil, crushing and processing cause one of main predisposing factors of accidents such as fire, explosion and sensitive electronic components
Potential failure, reduce one of the principal element of electronic product functional reliability.And in terms of electromagnetic radiation, modern high technology
Development and electronics, electric equipment products generally use, have become electromagnetic radiation pollution dirty after air pollution, water pollution, noise
The 4th big public hazards after dye.According to incompletely statistics, it is in for a long time in the pollution environment of electromagnetic radiation, it will make one to generate easily tired
The ill symptoms such as labor, decrease of memory, physiological function decline.Prevent electromagenetic wave radiation from polluting to protect environmental and human health impacts,
Electromagnetic-wave leakage is prevented to ensure information safety, has become current problem in the urgent need to address in the world.Therefore preparation tool
There is antistatic and electro-magnetic screen function conducting polypropylene fiber that there is very strong practical significance.
Conductive fiber refers to that under standard state (20 DEG C, relative humidity 65%), volume resistivity rate is lower than 108Ω cm's
Fiber, the fabric that conductive characteristic is processed into it have both antistatic and electromagnetic shielding function.Polymer-matrix electric conduction/magnetic conduction
The common preparation method of fiber includes finishing method and conductive powder body/polymer co-blended spinning method.Chinese patent CN
103590250 A, which are disclosed, a kind of to be applied to common textile fabric for magnetic material by final finishing and prepares magnetic function coated side
The method of material, selected magnetic material are Fe3O4, in order to improve Fe3O4The shortcomings that easy to reunite and oxidation, using conductive poly- pyrrole
Cough up (PPY) cladding Fe3O4Particle, obtained PPY/Fe3O4Coating textile fabric has the featured functions such as conduction, magnetic conduction.It is Chinese special
Sharp 102978738 A of CN discloses a kind of preparation method of conducting polypropylene fiber, with modified four acicular type zinc oxide crystal whisker, leads
Electrical potassium titanate crystal whisker, antimony doped tin oxide conducting powder, superconductive carbon black mixing are used as conductive powder body, spin with polypropene blended melting
Silk, the fabric resistor rate prepared is low, and breaking strength is high, has good electric conductivity and durability.Using the side being generally blended
Method, fiber percolation threshold is high, and the addition of more conducting particles is easy to appear reunion, mechanical property reduces and fluidity of molten becomes
The problems such as poor, the percolation threshold for reducing system is always one of the critical issue in conductive fiber research and development field.Chinese patent CN
103046157 A disclose a kind of preparation method of carbon nano-tube/poly urethane/polypropylene composite materials conductive fiber, are led by control
Selectivity dispersion and two-phase of the electric filler in multi-phase polymer co-mixing system are mutually separated to reduce the percolation threshold of system, are obtained
Obtained the fiber with higher mechanical property and electric conductivity.
Induced by magnetic field secondary process technology is a kind of advanced composite material (ACM) technology of preparing developed in recent years.In magnetic powder
Induced by magnetic field magnetic powder particle orientation ordered arrangement is used in body/polymer composites forming process, in polymeric matrix
Middle formation fento or bead structure can form excellent conductive network channel if magnetic powder is conductive, realize electricity
Lotus is efficiently transmitted in the base, is improved the electric conductivity of material, is reduced percolation threshold.It is led using the preparation of induced by magnetic field secondary process
The electroconductive magnetic powder selected when composite need to select ferromagnetic substance or suitable/diamagnetic material (under high-intensity magnetic field), adopt
The resistivity of composite material can be made to decline 3~5 orders of magnitude with the method for induced by magnetic field, can effectively promote materials conductive
Property, conductive powder body dosage is reduced, the mechanical property of material is promoted and reduces cost.Therefore induced by magnetic field secondary process technology is great
Development potentiality is to prepare one of desirable technique of high-performance conductive fiber.Chinese patent CN 200910154049 discloses one kind
The method of magnetic induced multi-wall carbon nanometer ordered arrangement in chitosan basal body is prepared for magnetic multi wall carbon by certain processing
Then mixed solution injection both ends are placed in the mold of permanent magnet by nanotube/chitosan mixed solution, the method is simple, at
This is cheap, realizes multi-walled carbon nanotube parallel orderly arrangement, evenly dispersed in the polymer, but this method uses permanent magnetism
Iron, magnetic field strength poor controllability, is unfavorable for industrialized production.Chinese patent CN 201010614797 discloses a kind of low-intensity magnetic field
Induced order carbon nano tube/epoxy resin composite material preparation method is first prepared for carbon nano tube/epoxy resin mixing
Liquid is added curing agent, is poured into the mold for being placed in magnetic field, reacts curing molding, has obtained the composite wood of excellent combination property
Material, the more unordered carbon nano tube/epoxy resin composite material of the electric conductivity of ordering carbon nano tube/epoxy resin composite material have
Larger raising.
It is mainly static process that the above induced by magnetic field secondary process technology, which is mainly used in forming polymer, and right
In the process that this forming polymer of chemical fibre is completed under high speed shear and elongation flow field, relevant set there is no at present
Standby and method carries out magnetic field helper-inducer processing and forming.Therefore the present invention proposes one kind primarily directed to the deficiencies in the prior art
Induced by magnetic field suitable for chemical fibre forming process assists spinning moulding equipment and correlation technique, and being used to prepare has conduction
With the chemical fibre of electro-magnetic screen function.
Summary of the invention
The purpose of the present invention is to provide a kind of conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device and
Its production method, it is characterized in that manufacturing and designing and melt spinning being suitble to form the magnetic used using the basic principle of induced by magnetic field
Field apparatus for deivation, and magnetic powder/polymer composite conducting/is prepared using the melt spinning machine equipped with induced by magnetic field device and is led
The method of magnetic fiber.
The purpose of the present invention is being realized using following technical measures, wherein the raw material parts, is unless otherwise specified
Parts by weight.
Conduction/magnetic conduction chemical fibre induced by magnetic field assists spinning moulding device, which contains electromagnetic coil, electromagnetic wire
Circle is vertical with spinneret to be connect, and spinneret is connect with melt flow channel, and the hollow part of the electromagnetic coil is directed at spinneret center,
Strand is set to pass through electromagnetic coil hollow part, coil connects DC power supply when spinning, generates the magnetic line of force, the direction of the magnetic line of force
It is parallel to the strand direction of motion, the spinning melt for being mixed with magnetic particle is sprayed by spinneret orifice, at electromagnetic coil center,
Under the action of electromagnetic coil magnetic field, magnetic particle carries out arrangement by magnetic line of force direction and forms fento or bead structure, these fentos
Play the role of conduction/magnetic conduction network with bead structure, to substantially reduce conduction/magnetic conduction powder percolation threshold.
The electromagnetic coil internal diameter carries out matched design by spinneret specification, and coil magnetic field intensity is adjusted by DC power supply,
Magnetic field strength is controlled in 0.01~2T.
Conduction/magnetic conduction chemical fibre induced by magnetic field assist spinning moulding device production method the following steps are included:
By 1~20 parts by weight of magnetic powder, 0.5~2 parts by weight of dispersing agent, 0.1~0.5 parts by weight of antioxidant, polymer
77.5~98.4 parts by weight, material carry out melt blending, and blend melt is squeezed out by spinneret orifice through metering pump, is not yet fully cured
Nascent strand is by arranging magnetic powder therein under induced by magnetic field by magnetic line of force direction inside electromagnetic coil, strand warp
Then cooling and solidifying is oiled, boundling, drawing-off and thermal finalization, obtains finished product conduction/magnetic conduction composite fibre.
The magnetic powder is γ-Fe2O3、CoFe2O4、MnFe2O4、NiFe2O4、Zn Fe2O4、Fe3O4、Ni、Co、Fe、
Any one of FeCo or NiFe powder.
The dispersing agent is gamma-aminopropyl-triethoxy-silane, γ-glycidyl ether oxygen propyl trimethoxy silicane, γ-
(methacryloxypropyl) propyl trimethoxy silicane, N- β-(aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane, three is different hard
Ester acid isopropyl titanate, isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters, polyethylene wax, maleic anhydride inoculated polypropylene
At least one of with maleic anhydride grafted polyethylene.
The antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester, diphosphorous acid pentaerythrite distearyl alcohol ester or 1,1,3- tri- (2- first
Any one of base -4- hydroxyl -5- 2-methyl-2-phenylpropane base) butane.
The polymer is that polyethylene, polypropylene, polyester, polyurethane, polyamide, polyphenylene sulfide, polyether-ether-ketone etc. can be into
Any one of the polymer of row melt spinning.
The blended melting mode is magnetic powder and dispersing agent, and magnetic powder mother is first made in antioxidant and partial polymer
Grain after again with polymer blended melting.
Structural characterization and performance test:
1, using the specific resistance of fiber specific resistance instrument test fiber.It is detailed in example, the results showed that fiber specific resistance is 105
~1.2 × 107Ω cm, respectively less than 108Ω cm, belongs to conductive fiber.
2, using the breaking strength and elongation at break of single fiber strength tester test fiber.It is detailed in example, the results showed that fiber
Breaking strength be 2.0~7.0cN/dtex, elongation at break be 10~35%, meet basic requirement.
3, fiber cross-sectional is tested using scanning electron microscope (SEM), point of observation magnetic particle in the base
Dissipate situation.In detail as shown in Figure 2, the results showed that Ni powder content is higher, has certain reunion in polypropylene matrix, but from fiber than electricity
From the point of view of resistance and mechanical property, the performance of fiber also complies with requirement.
The present invention has the advantage that
1, intrastitial magnetic conductive particle alignment is substantially reduced at fento or bead structure under the inducing action in magnetic field
The percolation threshold of composite conducting fiber can significantly promote the electric conductivity of fiber in the case where reducing conductive powder additive amount
Can, while lower conductive powder body additive amount makes electrically conductive composite fibre be able to maintain higher mechanical property.
2, Magnetic guidance technology is a kind of secondary process technology of clean and safe, and device structure is simple, easy for installation, existing
Having need to only carry out on the basis of spinning equipment that the i.e. implementable technology is slightly transformed, and not influence normal melt spinning.
3, the present apparatus has universality, and processable range is wide, is suitable for various melt-spinnable polymer and different magnetic
Property powder.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that induced by magnetic field assists spinning moulding device
1 is the spinning melt for being mixed with magnetic particle；2 be spinneret orifice；3 be electromagnetic coil；4 be to be generated by electromagnetic coil
The magnetic line of force；5 be conduction/magnetic conduction composite fibre of spinning moulding.
Fig. 2 is the section scanning electron microscope photo figure for the Ni/ polypropylene composite materials fiber that Ni powder content is 17.5%
Specific embodiment
The present invention is specifically described below by example, it is necessary to which indicated herein is that following embodiment is served only for pair
The present invention is further described, and should not be understood as limiting the scope of the invention, and the person skilled in the art in the field can
Some nonessential modifications and adaptations are made to the present invention with content according to the present invention.
Embodiment 1
Conduction/magnetic conduction chemical fibre induced by magnetic field assists spinning moulding device, which contains electromagnetic coil 3, electromagnetism
Coil 3 is vertical with spinneret 2 to be connect, and spinneret 2 is connect with melt flow channel 1, and the hollow part of the electromagnetic coil 3 is directed at spinneret
Plate center makes strand 5 pass through electromagnetic coil hollow part, and coil connects DC power supply when spinning, generates the magnetic line of force 4, magnetic
The line of force is oriented parallel to the strand direction of motion, and the spinning melt for being mixed with magnetic particle is sprayed by spinneret orifice, through electromagnetic wire
At circle center, under the action of electromagnetic coil magnetic field, magnetic particle carries out arrangement by magnetic line of force direction and forms fento or beading knot
Structure, these fentos and bead structure play the role of conduction/magnetic conduction network, so that substantially reducing conduction/magnetic conduction powder exceedes infiltration
Threshold value.
This example selects common polypropylene as matrix, and with highly conductive and magnetic conductivity reduced iron powder as magnetic
Powder.
Step 1: the preparation of conduction/magnetic conduction polypropylene agglomerate, by 20 parts by weight Fe3O4Powder, 68 parts by weight of polypropylene slice, 5
Three iso stearate isopropyl titanate of parts by weight, 5 parts by weight maleic anhydride graft polypropylenes, 2 parts by weight, four [β-(3,5- bis- tertiary fourths
Base -4- hydroxy phenyl) propionic acid] pentaerythritol ester passes through double screw extruder after mixing and mix and extruding pelletization, squeeze
Temperature is 170 DEG C out, obtains conduction/magnetic conduction polypropylene agglomerate.
Step 2: the preparation of conduction/magnetic conduction polypropylene fibre, by 5 parts by weight of gained polypropylene agglomerate and polypropylene chip 95
Parts by weight carry out co-blended spinning, and extruder temperature controls the metering at 195~230 DEG C, magnetic field strength 1T, metering pump specification 0.6ml/r
Pump revolution 10r/min, spinneret orifice diameter 0.4mm, hole count 18, winding speed 400m/min, tow carries out 2 times of heat and leads after winding
Stretch, obtain reduced iron powder content be 1.0% conducting polypropylene fiber, breaking strength 5.5cN/dtex, elongation at break 15%,
Specific resistance is 1.2 × 107Ω·cm。
Embodiment 2
Conduction/magnetic conduction is prepared according to conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device of embodiment 1
Polyethylene fibre, this example select common thermoplastic polyethylene as matrix, and Ni powder is as magnetic powder.
Step 1: the preparation of conduction/magnetic conduction polyethylene master batch, by 30 parts by weight Ni powder, 64 weight account polyethylenes slice, 3 weights
Measure part isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters, 2 weight account polyethylene waxes, 1 parts by weight, four [β-(3,5- bis- uncles
Butyl -4- hydroxy phenyl) propionic acid] pentaerythritol ester passes through double screw extruder after mixing and mix and extruding pelletization,
Extrusion temperature is 200 DEG C, obtains conduction/magnetic conduction polyethylene master batch.
Step 2: the preparation of conduction/magnetic conduction vinyl fiber, by 30 parts by weight of gained polyethylene master batch and polyethylene slice 70
Parts by weight carry out co-blended spinning, and extruder temperature is controlled at 230~250 DEG C, magnetic field strength 1.5T, metering pump specification 0.6ml/r, meter
Measure pump revolution 10r/min, spinneret orifice diameter 0.4mm, hole count 18, winding speed 400m/min, tow carries out 2 times of heat and leads after winding
It stretches, obtains the conductive polyethylene fiber that Ni powder content is 9%, breaking strength 5.3cN/dtex, elongation at break 18%, specific resistance
6.0×106Ω·cm。
Example 3
Conduction/magnetic conduction is prepared according to conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device of embodiment 1
Polypropylene fibre, this example select common thermoplastic resin polypropylene as matrix, and Ni powder is as magnetic powder.
Step 1: the preparation of conduction/magnetic conduction polypropylene agglomerate, by 35 parts by weight Ni powder, 60 parts by weight of polypropylene slice, 1.0
Parts by weight gamma-aminopropyl-triethoxy-silane, 1.0 parts by weight maleic anhydride grafted polyethylenes, 2.0 weight account polyethylene waxes, 1.0
Parts by weight β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecyl alcohol ester pass through after mixing double screw extruder into
Row mixing and extruding pelletization, extrusion temperature are 170 DEG C, obtain conduction/magnetic conduction polypropylene agglomerate.
Step 2: the preparation of conduction/magnetic conduction polypropylene fibre, by 50 parts by weight of gained polypropylene agglomerate and polypropylene chip
50 parts by weight carry out co-blended spinning, and extruder temperature is controlled at 195~230 DEG C, magnetic field strength 0.8T, metering pump specification 0.6ml/r,
Pump revolution 10r/min is measured, spinneret orifice diameter 0.4mm, hole count 18, winding speed 400m/min, tow carries out 2 times of heat after winding
Drawing-off, obtain Ni powder content be 17.5% conducting polypropylene fiber, breaking strength 4.5cN/dtex, elongation at break 12%,
Specific resistance 7.2 × 104Ω·cm。
Example 4
Conduction/magnetic conduction is prepared according to conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device of embodiment 1
Polyester fiber, this example select polyester as matrix, CoFe2O4As magnetic powder.
Step 1: the preparation of conduction/magnetic conduction polyester master particle, by 25 parts by weight CoFe2O4, 70 weight of polyester slice, 2.0 weights
Measure part isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters, 1.5 parts by weight γ-(methacryloxypropyl) propyl trimethoxy
Silane, 1.5 parts by weight diphosphorous acid pentaerythrite distearyl alcohol esters pass through after mixing double screw extruder carry out squeeze out make
Grain, extrusion temperature are 270 DEG C, obtain conduction/magnetic conduction polyester master particle.
Step 2: the preparation of conduction/magnetic conduction polyester fiber, by 30 parts by weight of gained polyester master particle and 70 weight of polyester slice
Part carries out co-blended spinning, and at 290~300 DEG C, magnetic field strength 1T, metering pump specification 0.6ml/r, metering pump turns for extruder temperature control
Number 10r/min, spinneret orifice diameter 0.4mm, hole count 18, winding speed 400m/min, tow carries out 2 times of hot gas springs after winding, obtains
To CoFe2O4Conduction/magnetic conduction polyester fiber that content is 7.5%, breaking strength 4.6cN/dtex, elongation at break 20%, than electricity
Resistance 1.2 × 106Ω·cm。
Example 5
Conduction/magnetic conduction is prepared according to conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device of embodiment 1
Polyurethane fiber, this example select polyurethane as matrix, and FeCo is as magnetic powder.
Step 1: the preparation of conduction/magnetic conduction polyurethane master batch, by 20 parts by weight FeCo, 78 weight of polyester slice, 1.2 weights
Measure three iso stearate isopropyl titanate of part, 1.8 parts by weight N- β-(aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane, 1.0
Parts by weight antioxidant 1,1,3- tri- (2- methyl -4- hydroxyl -5- 2-methyl-2-phenylpropane base) butane passes through double screw extruder after mixing
Extruding pelletization is carried out, extrusion temperature is 180 DEG C, obtains conduction/magnetic conduction polyurethane master batch.
Step 2: 30 parts by weight of gained polyurethane master batch and polyurethane are sliced by the preparation of conduction/magnetic conduction polyurethane fiber
70 parts by weight carry out co-blended spinning, and extruder temperature is controlled at 210~220 DEG C, magnetic field strength 0.5T, metering pump specification 0.6ml/r,
Pump revolution 10r/min is measured, spinneret orifice diameter 0.4mm, hole count 18, winding speed 400m/min, tow carries out 2 times of heat after winding
Drawing-off obtains conduction/magnetic conduction polyurethane fiber that FeCo content is 6.0%, breaking strength 5.3cN/dtex, elongation at break
35%, specific resistance 8.0 × 105Ω·cm。
Example 6
Conduction/magnetic conduction is prepared according to conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device of embodiment 1
Fypro, this example select polyamide as matrix, NiFe2O4As magnetic powder.
Step 1: the preparation of conduction/magnetic conduction polyamide master batch, by 40 parts by weight NiFe2O4, 55 weight parts of polyamide slice, 2
Parts by weight γ-glycidyl ether oxygen propyl trimethoxy silicane, 2 parts by weight, three iso stearate isopropyl titanate, 1 parts by weight two are sub-
Phosphoric acid pentaerythrite distearyl alcohol ester carries out extruding pelletization by double screw extruder after mixing, and extrusion temperature is 180 DEG C,
Obtain conduction/magnetic conduction polyamide master batch.
Step 2: 50 parts by weight of gained polyamide master batch and polyamide are sliced by the preparation of conduction/magnetic conduction Fypro
50 parts by weight carry out co-blended spinning, and extruder temperature is controlled at 250~260 DEG C, magnetic field strength 2T, metering pump specification 0.6ml/r, meter
Measure pump revolution 10r/min, spinneret orifice diameter 0.4mm, hole count 18, winding speed 400m/min, tow carries out 2 times of heat and leads after winding
It stretches, obtains NiFe2O4Conduction/magnetic conduction Fypro that content is 20%, breaking strength 3.5cN/dtex, elongation at break
12%, specific resistance 7.5 × 104Ω·cm。
Example 7
Conduction/magnetic conduction is prepared according to conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device of embodiment 1
Polyphenylene sulfide fibre, this example select polyphenylene sulfide as matrix, and NiFe is as magnetic powder.
Step 1: 25 parts by weight NiFe, 72 parts by weight polyphenylene sulfides are cut in the preparation of conduction/magnetic conduction polyphenylene sulfide master batch
Piece, 2 parts by weight N- β-(aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane, 1 parts by weight 1,1,3-, tri- (2- methyl -4- hydroxyl
Base -5- 2-methyl-2-phenylpropane base) for butane after mixing by double screw extruder progress extruding pelletization, extrusion temperature is 290 DEG C, it obtains
Conduction/magnetic conduction polyphenylene sulfide master batch.
Step 2: the preparation of conduction/magnetic conduction polyphenylene sulfide fibre, by 30 parts by weight of gained polyphenylene sulfide master batch and polyphenylene sulfide
Ether is sliced 70 parts by weight and carries out co-blended spinning, and extruder temperature control is at 310~320 DEG C, magnetic field strength 1.2T, metering pump specification
0.6ml/r measures pump revolution 10r/min, spinneret orifice diameter 0.4mm, hole count 18, winding speed 400m/min, tow after winding
Carry out 2 times of hot gas springs, obtain NiFe content be 7.5% conduction/magnetic conduction polyphenylene sulfide fibre, breaking strength 3.1cN/dtex,
Elongation at break 22%, specific resistance 8.6 × 106Ω·cm。
Example 8
Conduction/magnetic conduction is prepared according to conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device of embodiment 1
Polyetheretherketonefiber fiber, this example select polyether-ether-ketone as matrix, and FeCo is as magnetic powder.
Step 1: the preparation of conduction/magnetic conduction polyether-ether-ketone, by 20 parts by weight FeCo, 76 parts by weight polyphenylene sulfide slices, 1.5
Parts by weight isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters, 1.5 parts by weight N- β-(aminoethyl)-γ-aminopropyltriethoxy
Dimethoxysilane, 1 parts by weight four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester lead to after mixing
It crosses double screw extruder and carries out extruding pelletization, extrusion temperature is 360 DEG C, obtains conduction/magnetic conduction polyether-ether-ketone master batch.
Step 2: the preparation of conduction/magnetic conduction polyetheretherketonefiber fiber, by 20 parts by weight of gained polyether-ether-ketone master batch and polyethers ether
Ketone is sliced 80 parts by weight and carries out co-blended spinning, and extruder temperature control is at 370~380 DEG C, magnetic field strength 1T, metering pump specification
0.6ml/r measures pump revolution 10r/min, spinneret orifice diameter 0.4mm, hole count 18, winding speed 400m/min, tow after winding
2 times of hot gas springs are carried out, conduction/magnetic conduction polyetheretherketonefiber fiber that FeCo content is 4% is obtained, breaking strength 4.8cN/dtex breaks
Split elongation 19%, specific resistance 2.6 × 105Ω·cm。
Claims (8)
1. conduction/magnetic conduction chemical fibre induced by magnetic field assists spinning moulding device, it is characterised in that induced by magnetic field auxiliary is spun
The main body of silk molding machine is electromagnetic coil (3), and electromagnetic coil (3) is connect with spinneret (2) vertical removable, spinneret (2)
It is connect with melt flow channel (1), the hollow part of the electromagnetic coil (3) is directed at spinneret center, and strand (5) is made to pass through electricity
Magnetic coil hollow part, coil connects DC power supply when spinning, generates the magnetic line of force (4), and the magnetic line of force is oriented parallel to strand fortune
Dynamic direction, the spinning melt for being mixed with magnetic particle is sprayed by spinneret orifice, at electromagnetic coil center, in electromagnetic coil magnetic field
Under the action of, magnetic particle carries out arrangement by magnetic line of force direction and forms fento or bead structure, these fentos and bead structure rise
To the effect of conduction/magnetic conduction network, to substantially reduce conduction/magnetic conduction powder percolation threshold.
2. conduction/magnetic conduction chemical fibre induced by magnetic field assists spinning moulding device according to claim 1, it is characterised in that
Electromagnetic coil internal diameter carries out matched design by spinneret specification, and coil magnetic field intensity is adjusted by DC power supply, controls magnetic field strength
In 0.01~2T.
3. the production method of conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device according to claim 1,
It is characterized in that method includes the following steps:
By 1~20 parts by weight of magnetic powder, 0.5~2 parts by weight of dispersing agent, 0.1~0.5 parts by weight of antioxidant, polymer 77.5
~98.4 parts by weight, material carry out melt blending, and blend melt is squeezed out through metering pump by spinneret orifice, and what is be not yet fully cured is nascent
Strand is by making magnetic powder therein arrange to form fento or string by magnetic line of force direction under induced by magnetic field inside electromagnetic coil
Then pearl structure, strand are oiled, boundling, drawing-off and thermal finalization through cooling and solidifying, obtain finished product conduction/magnetic conduction composite fibre.
4. the production method of conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device according to claim 3,
It is characterized in that magnetic powder is γ-Fe2O3、CoFe2O4、MnFe2O4、NiFe2O4、ZnFe2O4、Fe3O4、Ni、Co、Fe、FeCo
Or any one of NiFe powder.
5. the production method of conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device according to claim 3,
It is characterized in that dispersing agent is gamma-aminopropyl-triethoxy-silane, γ-glycidyl ether oxygen propyl trimethoxy silicane, γ-
(methacryloxypropyl) propyl trimethoxy silicane, N- β-(aminoethyl)-γ-aminopropyltriethoxy dimethoxysilane, three is different hard
Ester acid isopropyl titanate, isopropyl three (dioctylphyrophosphoric acid acyloxy) titanate esters, polyethylene wax, maleic anhydride inoculated polypropylene
At least one of with maleic anhydride grafted polyethylene.
6. the production method of conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device according to claim 3,
It is characterized in that antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, β-(3,5- bis- uncles
Butyl -4- hydroxy phenyl) propionic acid n-octadecyl alcohol ester, diphosphorous acid pentaerythrite distearyl alcohol ester or 1,1,3- tri- (2- methyl -
Any one of 4- hydroxyl -5- 2-methyl-2-phenylpropane base) butane.
7. the production method of conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device according to claim 3,
It is characterized in that polymer is polyethylene, polypropylene, polyester, polyurethane, polyamide, polyphenylene sulfide, polyether-ether-ketone can be melted
Melt any one of the polymer of spinning.
8. the production method of conduction/magnetic conduction chemical fibre induced by magnetic field auxiliary spinning moulding device according to claim 3,
It is characterized in that blended melting mode is magnetic powder and dispersing agent, magnetic powder master batch is first made in antioxidant and partial polymer
Afterwards again with polymer blended melting.
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| CN201510416128.0A CN104963018B (en) | 2015-07-15 | 2015-07-15 | Conduction/magnetic conduction chemical fibre induced by magnetic field assists spinning moulding device and its production method |
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| CN201510416128.0A CN104963018B (en) | 2015-07-15 | 2015-07-15 | Conduction/magnetic conduction chemical fibre induced by magnetic field assists spinning moulding device and its production method |
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| CN104963018B true CN104963018B (en) | 2018-12-07 |
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| CN107988633B (en) * | 2017-12-26 | 2020-08-07 | 普宁鑫盛印刷包装有限公司 | Fiber manufacturing device and process |
| CN108085774B (en) * | 2017-12-26 | 2020-05-22 | 无锡佳成纤维有限公司 | Melt spinning process |
| CN108085773B (en) * | 2017-12-26 | 2020-06-19 | 青岛圣美尔纤维科技有限公司 | Melt spinning device and process |
| CN111321483B (en) * | 2018-12-14 | 2022-03-08 | 中国科学院大连化学物理研究所 | Porous composite nanofiber, preparation thereof, electrode and application |
| CN111081423B (en) * | 2019-12-27 | 2021-07-27 | 暨南大学 | Oriented conductive composite material and preparation method and application thereof |
| CN114567090A (en) * | 2022-03-09 | 2022-05-31 | 卓尔博（宁波）精密机电股份有限公司 | Permanent magnetic ferrite rotor |
| CN115012066B (en) * | 2022-04-29 | 2024-02-23 | 上海华峰超纤科技股份有限公司 | Preparation method of PET/LDPE sea-island fiber |
| CN115597075B (en) * | 2022-10-31 | 2023-06-30 | 中国矿业大学 | Ultralow-concentration gas heat-storage combustion system and method based on magnetic field induction |
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