CN107523025A - Conductive agglomerate with electro-magnetic screen function and preparation method thereof, application, fiber - Google Patents
Conductive agglomerate with electro-magnetic screen function and preparation method thereof, application, fiber Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2201/003—Additives being defined by their diameter
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Abstract
It is main composed of the following components the invention provides a kind of conductive agglomerate with electro-magnetic screen function：High molecular polymer, grapheme material, carbon black and magnetite powder.Preparation method includes：After each component for preparing conductive agglomerate is mixed, produced after mixing, melting extrusion, water cooling, pelletizing, drying, screening.The conductive agglomerate with electro-magnetic screen function of the present invention, although the content of material comparison of graphite alkenes is high in the master batch, but still dispersion ratio is more uniform for graphene particles, granular size is also than more uniform, agglomerated particle produces less, properties are stable, and reduce magnetite powder due to the addition of graphite alkenes material, the addition of the materials such as carbon black, after associated materials being prepared into hence for subsequent applications, stretching is slight, the indexs such as elongation at break are more excellent, and also additionally impart the higher electro-magnetic screen function of material, further expand the market application of material, improve value-added content of product, be advantageous to further genralrlization application.
Description
Technical field
The present invention relates to master batch to process preparation field, female in particular to a kind of conduction with electro-magnetic screen function
Grain and preparation method thereof, application, and a kind of fibrous material for including the conductive agglomerate.
Background technology
In the prior art, the exploitation report on the conductive agglomerate with electro-magnetic screen function is fewer, and exists scattered
The shortcomings of uneven, complex operation, production efficiency are low, cost is high.In CN201410488806.X patents, record
A kind of PET is electromagnetically shielded master batch and preparation method thereof with black conductive, and the conductive material that uses is that carbon black aoxidizes with four
The hybrid conductive powder of three iron powders, the electromagnetism efficiency of obtained Masterbatch is relatively low, and the composition of conductive material designs also more
Simply.In CN201210529341.9 patents, a kind of renewable resource, biodegradable conductive fiber and its preparation side are described
Method, the base material used are PHBA or PLA, and the processing technology used is simple double-screw melt blending, and conductive filler without
Be surface-treated link, so as to result in gained master batch in conductive filler it is dispersed poor, master batch carrier is held to conductive filler
Loading capability is relatively low, and the addition of master batch is big under identical conduction performance.
Graphene is a kind of two-dimensional material for the alveolate texture being made up of individual layer sp2 hydbridized carbon atoms, is had many excellent
Different performance.It has been found since 2004, graphene just becomes a big study hotspot of scientific circles.In the thing to graphene
While Physicochemical property is studied, the composite related to graphene also emerges in an endless stream.On nano science direction, stone
Black alkene is also used to prepare the nano composite material of correlation, the especially nanometer of graphene/metal or graphene/metal oxide
Composite.Due to the excellent properties of graphene, these nano composite materials are in novel energy, bio-sensing, catalysis, optics material
There are wide Research Prospects in the fields such as material.
In the prior art, the report in terms of the material of graphite alkenes also not being used for into electro-magnetic screen function, and graphite
Alkene itself is light, is restricted with many materials compatibilities, also has in dosage and compares strict requirements, therefore also limit graphene
The further expanding production of class material utilizes.
In view of this, it is special to propose the present invention.
The content of the invention
The first object of the present invention is to provide a kind of conductive agglomerate with electro-magnetic screen function, graphene in the master batch
Although content comparison is high, still dispersion ratio is more uniform for graphene particles, and also than more uniform, agglomerated particle produces granular size
Less, properties are stable, and reduce the addition of the materials such as magnetite powder, carbon black due to the addition of grapheme material,
Higher with the compatibility of other raw materials, after being prepared into associated materials hence for subsequent applications, stretching is slight, elongation at break
It is more excellent etc. index, and the higher electro-magnetic screen function of material is also additionally imparted, further expand the city of material
Field application, improves value-added content of product, is advantageous to further genralrlization application.
The second object of the present invention is the preparation method for providing the above-mentioned conductive agglomerate with electro-magnetic screen function, prepares
Step linking is close before and after method, method simple and fast, can realize slitless connection with existing production process equipment and flow, have
The advantages of effective ingredient of raw material can completely be retained, and it is simply easily operated with method, and operating condition is gentle, and work can be achieved
Industry metaplasia is produced, and economic benefit is very good.
The third object of the present invention is the application for providing the above-mentioned conductive agglomerate with electro-magnetic screen function, master batch production
Product application is very extensive, is widely used in shielding tent, conductive antistatic fabric and screening clothing aspect, subsequently through spinning system
Also possess good electro-magnetic screen function after making forming material.
In order to realize the above-mentioned purpose of the present invention, spy uses following technical scheme：
It is main composed of the following components the invention provides a kind of conductive agglomerate with electromagnetic barrier function：Macromolecule
Polymer, grapheme material, carbon black and magnetite powder.
Preferably, grapheme material of the invention includes one kind in single-layer graphene, bilayer graphene, multi-layer graphene
Or several mixing, wherein the number of plies of multi-layer graphene is more than more than 10 layers.
Also graphene is not engaged come the phase of the electromagnet shield effect for master batch of deducting a percentage with magnetite powder in the prior art
Report is closed, and the present invention is in order to solve technical problem present in prior art, there is provided a kind of with electromagnetic barrier function
The formula of conductive agglomerate, primary raw material are high molecular polymer, grapheme material, carbon black and magnetite powder these four raw materials, with
Can be very big toward the dosage using magnetite powder, and the present invention is not only creative is combined grapheme material and magnetite powder
Use, and by adding grapheme material, the addition of magnetite powder can be reduced, because in the prior art, magnetite powder adds
The too big interior molecules construction for destroying material on the contrary of amount, can cause master batch spinning in the future to form physical property after fibrous material
Reduce, therefore dosage should not be too big, and the present invention not only imparts the good electromagnetism of conductive agglomerate by adding grapheme material
Barrier function, moreover it is possible to significantly reduce the addition of magnetite powder, be to kill two birds with one stone.
In order to further optimize the proportioning between component, it is preferable that in terms of mass fraction, high molecular polymer 40-60 parts,
Carbon black 3-10 parts, grapheme material 1-10 parts, magnetite powder 10-30 parts；
More preferably, high molecular polymer 45-55 parts, carbon black 4-8 parts, grapheme material 3-9 parts, magnetite powder 15-25 parts.
In addition, high molecular polymer can also be 41 parts, 42 parts, 43 parts, 46 parts, 47 parts, 51 parts, 52 parts, 53 parts
It can be 3 parts, 9 parts etc. Deng, carbon black, grapheme material can be 2 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts etc., and magnetite powder can be with
For 11 parts, 12 parts, 14 parts, 16 parts, 18 parts, 19 parts etc..
In addition, the gross mass number of carbon black and grapheme material is preferably controlled between 5-13 parts, to strengthen between raw material
Synergy so that the conductive agglomerate being prepared has good capability of electromagnetic shielding and physical property concurrently.
Optimal proportioning is, in terms of mass fraction, 50 parts of high molecular polymer, and 6 parts of carbon black, 5 parts of grapheme material, magnet
20 parts of miberal powder.
In fact, the main object of the present invention is just to provide for a kind of few addition, stable performance, prepares simple conduction
Master batch is electromagnetically shielded, the fine formula design through inventor, prepared master batch is conductive can be high, effectiveness
Well, the features such as conductive component content is high, and addition is small, and dispersiveness is excellent, electromagnet shield effect >=47dB.High conductivity in formula
The introducing of graphene material, the addition of metal oxide and conductive black is reduced, reduce the density of conductive agglomerate.It is logical
After crossing rational design planning, it can make it that there is good compatibility between grapheme material and other raw materials, and by each group
The dosage divided has been adjusted within optimum amount ranges.
Need to stress is, carbon black is the carbon black and magnetite powder after modifier modification with magnetite powder,
The addition of modifying agent is preferably controlled between carbon black and the 0.5-3wt% of magnetite powder total amount, more preferably 1-2wt% it
Between, can also be 1.5wt%, 2.5wt% etc..
It is modified by the activation process to carbon black and magnetite powder and surface, it is ensured that point of the conductive component in master batch
Property and compatibility are dissipated, can more strengthen the intersolubility between each raw material components.
Preferably, the species of modifying agent includes：One kind or more in silanes modifying agent, advanced stearic acid modifying agent
Kind, it is furthermore preferred that the species of the modifying agent includes at least two in silanes modifying agent, advanced stearic acid modifying agent.
Wherein silanes modifying agent can be KH550 and/or KH560 both, it is advanced that to answer aliphatic acid can be stearic acid
And/or oleic acid, at least two in modifying agent KH550, KH560 and stearic acid.
Specifically in modifying process, preferably carry out in accordance with the following steps：Carbon black is mixed into drying with magnetite powder, cooling adds
Add modifying agent, mixed at high speed stirring 20-30min obtains modified mixture；
Wherein, the temperature of drying is preferably controlled between 100-210 DEG C, and the temperature control of mixed at high speed stirring is in 68-95
DEG C, stir speed (S.S.) is controlled between 700-1600rpm, can be very good to realize the suitable of modification procedure under conditions of high-speed stirred
Profit is carried out.
The present invention strengthens each raw material and base by the surface modification treatment to magnetite powder, carbon black both packing materials
Compatibility between body fiber so that between each raw material mutual 5 match somebody with somebody after the obtained performance of master batch product each side it is more excellent
It is different.
In addition, the type of each component has more excellent Selective type, for example carbon black selection is preferably selected as conduction
Carbon black, design parameter index are：Particle diameter is between 25-50nm, and iodine absorption value is between 240-260g/kg, oil factor 190-
Between 210ml/100g, pH value is between 5.5-6.5, and tinting strength, tinting power is between 80-90%ITRB.
Magnetite powder is preferably ferroferric oxide powder.
In addition, also including coupling agent, dispersant in component, proportioning is preferably：In terms of mass fraction, coupling agent 1-3 parts, point
Powder 3-10 parts, coupling agent are preferably one or both of titanate coupling agent, silane coupler, and silane coupler is
One or more of mixing in KH550, KH560, A172, A171, dispersant are preferably polyethylene glycol 400, Tissuemat E, gathered
One or more of mixing in ethylene glycol 200, oleamide and linoleamide, promote various in the presence of dispersant
Raw material mixing is more uniform, and coupling agent can also cooperate with the dispersiveness and adhesion for improving material.
Except providing a kind of formula of the conductive agglomerate with electromagnetic barrier function, additionally provide one kind has the present invention
The preparation method of the conductive agglomerate of electromagnetic barrier function, mainly comprises the following steps：
After each component of conductive agglomerate is mixed, after mixing, melting extrusion, water cooling, pelletizing, drying, screening i.e.
.
Step linking is close before and after the preparation method of the conductive agglomerate of the present invention, method simple and fast, with existing production work
Skill equipment and flow can realize slitless connection, have the advantages of effective ingredient that can completely retain raw material, and with method letter
Single easily operated, operating condition is gentle, and industrialized production can be achieved, and economic benefit is very good.
Wherein, the process for preparing master batch mainly utilizes fibre section to mix other features after high-temperature fusion and fill out
To form final master batch product after material, in the master batch product prepared, contained composition is mainly high molecular polymer, graphite
Alkene material, carbon black and magnetite powder.
Preferably, the time of mixing is preferably controlled in 20-40min, when being kneaded practical operation is carried out in banbury, squeezed
The equipment of pressure preferably selects double screw extruder.Made by using the extrusion by melting of mixer mixing combination twin-screw extrusion
Grain, so as to improve bearing capacity of the master batch carrier to functional filling material.
The conductive agglomerate of the present invention has very extensive answer at shielding tent, conductive antistatic fabric, screening clothing aspect
With there is good electro-magnetic screen function, and other physical properties are also more excellent.
The conductive agglomerate that the present invention is prepared is processed to obtain fibrous material, the method bag of specific spinning processing by spinning
Include：Conductive agglomerate and blank substrates material molten are blended, melt is made, through spinneret spinning, produces.By to spinning material
Itself conductance and electromagnetic barrier efficiency, which carries out detection, to verify the correlated performance of conductive agglomerate.
Fabric can be further woven into using the fibrous material of the present invention to use, using than wide.
Compared with prior art, beneficial effects of the present invention are：
(1) conductive agglomerate provided by the invention with electro-magnetic screen function, although contained graphene comparison is high,
Still dispersion ratio is more uniform for graphene particles, and granular size produces also than more uniform without any agglomerated particle, and properties are steady
Fixed, the index such as after being prepared into associated materials hence for subsequent applications, stretching is slight, elongation at break is more excellent, and
The higher electro-magnetic screen function of material is also additionally imparted, the market application of material is further expanded, improves product
Added value, be advantageous to further genralrlization application；
(2) preparation method of the conductive agglomerate with electro-magnetic screen function of the invention, step linking before and after preparation method
Closely, method simple and fast, slitless connection can be realized with existing production process equipment and flow, raw material can completely be retained by having
The advantages of effective ingredient, and it is simply easily operated with method, and operating condition is gentle, and graphene composite polyvinyl alcohol can be achieved
Industrialized production, the economic benefit of master batch are good；
(3) the conductive agglomerate application with electro-magnetic screen function is very extensive, is widely used in shielding tent, conduction is anti-quiet
In terms of electric fabric and screening clothing, also possess good electro-magnetic screen function after making forming material subsequently through spinning.
Embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the present invention.It is unreceipted specific in embodiment
Condition person, the condition suggested according to normal condition or manufacturer are carried out.Agents useful for same or the unreceipted production firm person of instrument, it is
The conventional products that can be obtained by commercially available purchase.
Embodiment 1
A kind of polyester fiber is electromagnetically shielded master batch with graphene conductive, after testing the component composition including following quality：PET
Polymer：55kg, aoxidize single-layer graphene：4kg, conductive black：9kg, magnetite powder：15kg, Silane coupling agent KH550：
3kg, polyethylene glycol 200 1kg, oleamide：2kg；
Preparation method：
(1) by after magnetite powder, conductive black and Silane coupling agent KH550 mixing 15-25min, then by polyethylene glycol
200th, oleamide and PET sections are repeatedly proportionally added into banbury on a small quantity, after mixer mixing 20-40min, obtain just
Walk the conductive mixture of mixing；
(2) by discharging of internal mixer, double screw extruder is fed through feeding machine, through melting extrusion, tie rod, water cooling, air-dries, cut
Grain, drying, screening obtain conductive agglomerate；
Melting extrusion prilling condition is as follows：
Each Heating Zone Temperature：266℃、282℃、282℃、282℃、282℃、282℃、282℃、282℃、282℃、
285℃、285℃、285℃；
Engine speed：523rpm；
Pelleter rotating speed：633rpm；
Particle size：Length≤4mm, diameter≤4mm；
Screen pack aperture：25um；
Cooling water temperature：20±2℃；
Bipyramid rotatory vacuum drying temperature：150±3℃.
Embodiment 2
A kind of polyester fiber is electromagnetically shielded master batch with graphene conductive, includes the component composition of following quality：PET polymerize
Thing：45kg, bilayer graphene material：1kg, conductive black：10kg, magnetite powder：25kg, silane coupler KH560：1kg, gather
The 3kg of ethylene glycol 400, Tissuemat E：7kg；
Preparation method：
(1) magnetic iron ore powder and conductive carbon black are first dried into 20-30min under the conditions of 100-210 DEG C, is cooled to normal temperature
Afterwards, itself and modifying agent KH560 are put into high mixer together, KH560 addition is 0.5wt%.High-speed mixer temperature is set
68-95 DEG C is scheduled on, the rotating speed of high mixer is 700-1600r/min, modification time 20-30min；
(2) after the modified mixture and silane coupler KH560 mixing 15-25min that obtain above-mentioned steps, then by poly- second
Glycol 400, Tissuemat E and PET sections are repeatedly proportionally added into banbury on a small quantity, after mixer mixing 20-40min, obtain
To the conductive mixture tentatively mixed；
(3) by discharging of internal mixer, double screw extruder is fed through feeding machine, through melting extrusion, tie rod, water cooling, air-dries, cut
Grain, drying, screening obtain conductive agglomerate；
Melting extrusion prilling condition is as follows：
Each Heating Zone Temperature：266℃、282℃、282℃、282℃、282℃、282℃、282℃、282℃、282℃、
285℃、285℃、285℃；
Engine speed：523rpm；
Pelleter rotating speed：633rpm；
Particle size：Length≤4mm, diameter≤4mm.
Embodiment 3
A kind of polypropylene fibre is electromagnetically shielded master batch with graphene conductive, includes the component composition of following quality：Polypropylene
Polymer：40kg, multi-layer graphene：10kg, (particle diameter is conductive black in 25nm, iodine absorption value 240g/kg, oil factor
190ml/100g, pH value 5.5, tinting strength, tinting power 80ITRB)：8kg, ferroferric oxide powder：30kg, titanate coupling agent：
2kg, polyethylene glycol 400 4kg, Tissuemat E：3kg；
Preparation method：
(1) ferroferric oxide powder and conductive carbon black are first dried into 20-30min under the conditions of 105 DEG C, is cooled to normal temperature
Afterwards, itself and modifying agent stearic acid are put into high mixer together, stearic addition is 3wt%.High-speed mixer temperature is set
90 DEG C are scheduled on, the rotating speed of high mixer is 1000rpm, modification time 20-30min；
(2) after the modified mixture and titanate coupling agent mixing 15-25min that obtain above-mentioned steps, then by poly- second two
Alcohol 400, Tissuemat E and polypropylene fibre section are repeatedly proportionally added into banbury on a small quantity, through mixer mixing 20-40min
Afterwards, the conductive mixture tentatively mixed；
(3) by discharging of internal mixer, double screw extruder is fed through feeding machine, through melting extrusion, tie rod, water cooling, air-dries, cut
Grain, drying, screening obtain conductive agglomerate；
Melting extrusion prilling condition is as follows：
Each Heating Zone Temperature：158℃、215℃、215℃、222℃、222℃、223℃、223℃、223℃、223℃、
228℃、242℃、242℃；
Engine speed：518rpm；
Pelleter rotating speed：620rpm；
Particle size：Length≤4mm, diameter≤4mm.
Embodiment 4
A kind of nylon-6 fiber is electromagnetically shielded master batch with graphene conductive, includes the component composition of following quality：Nylon 6/poly
Compound：60kg, more than 10 layers of multi-layer graphene material：3kg, (particle diameter is in 50nm, iodine absorption value 260g/kg, suction for conductive black
Oil value is 210ml/100g, pH value 6.5, tinting strength, tinting power 90ITRB)：3kg, ferroferric oxide powder：10kg, silane coupler
A172：2kg, oleamide 4kg, Tissuemat E：4kg；
Preparation method：
(1) ferroferric oxide powder and conductive carbon black are first dried into 20-30min under the conditions of 105 DEG C, is cooled to normal temperature
Afterwards, itself and modifying agent KH550/KH560 are put into high mixer together, KH550/KH560 additions are 1wt%.Mixed at high speed
Machine temperature is set in 95 DEG C, and the rotating speed of high mixer is 700rpm, modification time 20-30min；
(2) after the modified mixture and silane coupling A 172 obtained above-mentioned steps mixes 15-25min, then by oleic acid
Acid amides, Tissuemat E and polypropylene fibre section are repeatedly proportionally added into banbury on a small quantity, through mixer mixing 20-40min
Afterwards, the conductive mixture tentatively mixed；
(3) by discharging of internal mixer, double screw extruder is fed through feeding machine, through melting extrusion, tie rod, water cooling, air-dries, cut
Grain, drying, screening obtain conductive agglomerate.
Melting extrusion prilling condition is as follows：
Each Heating Zone Temperature：210℃、240℃、240℃、240℃、240℃、240℃、240℃、240℃、240℃、
240℃、245℃、245℃；
Engine speed：507rpm；
Pelleter rotating speed：605rpm；
Particle size：Length≤4mm, diameter≤4mm.
Embodiment 5
A kind of polyester fiber is electromagnetically shielded master batch with graphene conductive, includes the component composition of following quality：PET polymerize
Thing：50kg, grapheme material：5kg, (particle diameter is in 50nm, iodine absorption value 260g/kg, oil factor 210ml/ for conductive black
100g, pH value 6.5, tinting strength, tinting power 90ITRB)：6kg, ferroferric oxide powder：20kg, silane coupler KH560：2kg, gather
Ethylene glycol 4004kg, Tissuemat E：5kg；
Preparation method：
(1) ferroferric oxide powder and conductive carbon black are first dried into 20-30min under the conditions of 105 DEG C, is cooled to normal temperature
Afterwards, itself and modifying agent KH550 are put into high mixer together, KH550 additions are 2wt%.High-speed mixer temperature is set in
68 DEG C, the rotating speed of high mixer is 1600rpm, modification time 20-30min；
(2) after the modified mixture and silane coupler KH560 mixing 15-25min that obtain above-mentioned steps, then by poly- second
Glycol 400, Tissuemat E and PET sections are repeatedly proportionally added into banbury on a small quantity, after mixer mixing 20-40min, obtain
To the conductive mixture tentatively mixed；
(3) by discharging of internal mixer, double screw extruder is fed through feeding machine, through melting extrusion, tie rod, water cooling, air-dries, cut
Grain, drying, screening obtain conductive agglomerate, and the operating parameter of extruder is consistent with embodiment 2.
Embodiment 6
Concrete operation step is consistent with embodiment 5, and simply the grapheme material in component replaces with graphene and oxidation stone
The mixture of black alkene.
Embodiment 7
Concrete operation step is consistent with embodiment 5, does not add dispersant polyethylene glycol 400, Tissuemat E in component simply.
Embodiment 8
Concrete operation step and embodiment 5 are consistent, and simply the modifying agent KH550 in step 1) is the mixed of oleic acid and KH560
Compound.
Embodiment 9
Concrete operation step is consistent with embodiment 5, the relatively low conductive black of resistivity ratio is not used simply, using common
Commercially available carbon black.
Embodiment 10
Concrete operation step is consistent with embodiment 5, simply grapheme material：2kg, (particle diameter is in 50nm, suction iodine for conductive black
It is worth for 260g/kg, oil factor 210ml/100g, pH value 6.5, tinting strength, tinting power 90ITRB)：3kg.
Comparative example 1
Concrete operation step is consistent with embodiment 5, does not simply contain grapheme material in component.
Comparative example 2
The conductive electromagnetic shielding master batch that embodiment 1 is prepared in Application No. 201410488806.X patent.
Application examples 1
The preparation method of fibrous material is as follows：
Using master batch and/or substrate material melt blending made from embodiment 1-10 and comparative example 1-2, melt is made, passes through
Spinneret spinning obtains fibrous material.
Experimental example 1
The physical property for the fibrous material being prepared in application examples 1, electric conductivity are contrasted, specific performance result
It is as shown in table 1 below：
The performance parameter of table 1 contrasts
As can be seen that each side for the fiber with electromagnetic barrier function that the embodiment of the present invention is prepared from upper table 1
Face performance is more excellent, suitable for wide popularization and application.
Although illustrate and describing the present invention with specific embodiment, but will be appreciated that without departing substantially from the present invention's
Many other change and modification can be made in the case of spirit and scope.It is, therefore, intended that in the following claims
Including belonging to all such changes and modifications in the scope of the invention.
Claims (10)
1. a kind of conductive agglomerate with electromagnetic barrier function, it is characterised in that be mainly made up of following component：High molecular polymerization
Thing, grapheme material, carbon black and magnetite powder；
Preferably, the grapheme material includes one or more of in single-layer graphene, bilayer graphene, multi-layer graphene
Mixing, the number of plies of the multi-layer graphene is more than more than 10 layers.
2. conductive agglomerate according to claim 1, it is characterised in that in terms of mass fraction, high molecular polymer 40-60
Part, carbon black 3-10 parts, grapheme material 1-10 parts, magnetite powder 10-30 parts；
Preferably, high molecular polymer 45-55 parts, carbon black 4-8 parts, grapheme material 3-9 parts, magnetite powder 15-25 parts.
3. conductive agglomerate according to claim 2, it is characterised in that the gross mass number of the carbon black and grapheme material
Control is between 5-13 parts；
Preferably, in terms of mass fraction, 50 parts of high molecular polymer, 6 parts of carbon black, 5 parts of grapheme material, 20 parts of magnetite powder.
4. conductive agglomerate according to claim 2, it is characterised in that the carbon black is to change by modifying agent with magnetite powder
Carbon black and magnetite powder after property；
Preferably, the addition of the modifying agent is carbon black and the 0.5-3wt%, more preferably 1-2wt% of magnetite powder total amount
Between；
Preferably, the species of the modifying agent includes the one or more in silanes modifying agent, advanced stearic acid modifying agent；
It is furthermore preferred that the species of the modifying agent includes at least two in silanes modifying agent, advanced stearic acid modifying agent；
Preferably, the silanes modifying agent is KH550 and/or KH560；
Preferably, the advanced stearic acid modifying agent is stearic acid and/or oleic acid；
Preferably, the modifying agent is at least two in KH550, KH560 and stearic acid.
5. conductive agglomerate according to claim 4, it is characterised in that the method for the modification includes：By carbon black and magnet
Miberal powder mixing drying, cooling addition modifying agent, mixed at high speed stirring 20-30min obtain modified mixture；
Preferably, the temperature control of drying is between 100-210 DEG C；
Preferably, at 68-95 DEG C, stir speed (S.S.) controls between 700-1600rpm the temperature control of mixed at high speed stirring.
6. according to the conductive agglomerate described in claim any one of 1-5, it is characterised in that the carbon black is conductive black, particle diameter
Between 25-50nm, iodine absorption value is between 240-260g/kg, and oil factor is between 190-210ml/100g, pH value 5.5-
Between 6.5, tinting strength, tinting power is between 80-90%ITRB；
Preferably, the magnetite powder is ferroferric oxide powder；
Preferably, coupling agent, dispersant are also included in preparing in the component of the conductive agglomerate；
Preferably, in terms of mass fraction, coupling agent 1-3 parts, dispersant 3-10 parts；
Preferably, coupling agent includes titanate coupling agent, one or both of silane coupler, silane coupler KH550,
One or more of mixing in KH560, A172, A171；
Preferably, dispersant includes polyethylene glycol 400, Tissuemat E, polyethylene glycol 200, oleamide and linoleamide
In one or more of mixing.
7. the preparation method of the conductive agglomerate described in claim any one of 1-6, it is characterised in that comprise the following steps：
After each component for preparing conductive agglomerate is mixed, after mixing, melting extrusion, water cooling, pelletizing, drying, screening i.e.
.
8. the preparation method of conductive agglomerate according to claim 7, it is characterised in that mixing is carried out in banbury, is mixed
The refining time is 20-40min.
9. conductive agglomerate described in claim any one of 1-6 is in shielding tent, conductive antistatic fabric, in terms of screening clothing should
With.
A kind of 10. fiber of conductive agglomerate using described in claim any one of 1-6；
Preferably, conductive agglomerate and blank substrates material molten are blended, melt is made, through spinneret spinning, produces.
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