CN106521805A - Production method of conductive-toughening melt-blown composite nonwoven fabric - Google Patents
Production method of conductive-toughening melt-blown composite nonwoven fabric Download PDFInfo
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- CN106521805A CN106521805A CN201710025191.0A CN201710025191A CN106521805A CN 106521805 A CN106521805 A CN 106521805A CN 201710025191 A CN201710025191 A CN 201710025191A CN 106521805 A CN106521805 A CN 106521805A
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- conductive
- melt
- woven fabrics
- dimensional electric
- polymer
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Classifications
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/098—Melt spinning methods with simultaneous stretching
- D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/09—Addition of substances to the spinning solution or to the melt for making electroconductive or anti-static filaments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
Abstract
The invention provides a production method of conductive-toughening melt-blown composite nonwoven fabric. The nonwoven fabric is produced by polymer chips, one-dimensional conductive nano filler and a dispersing agent. The production method specifically includes the steps of firstly, preparing conductive master batch; secondly, producing the conductive-toughening melt-blown composite nonwoven fabric. The production method has the advantages that the synergic effect of shear and collision during high-speed mixing and the dispersing agent is utilized, and extrusion by a double-screw extruder is used to allow the one-dimensional conductive nano filler to be evenly dispersed in the polymer; the traction effect of the high-speed hot air in a melt-blowing method to allow the one-dimensional conductive nano filler to oriented along the axial directions of fibers in the fibers and on the surfaces of the fibers, and the building of a conductive network is guaranteed while the conductivity threshold of the composite material is lowered evidently; the conductive-toughening melt-blown composite nonwoven fabric can effectively achieve the effect of structure-function modification integrated design of the composite material; the method is simple in step, convenient to operate and high in practicality.
Description
Technical field
The invention belongs to non-woven fabrics and its technical field of composite materials, more particularly to a kind of conduction-toughness reinforcing is with melt-blown compound
The preparation method of non-woven fabrics.
Background technology
Carbon fiber enhancement resin base composite material (CFRP) has high specific strength, high ratio modulus and lightweight, corrosion resistant because of which
The advantage such as erosion, designability be strong and be widely used in aerospace field.This composite generally using thermosetting resin as
Matrix, the low toughness of thermosetting resin matrix and electrical insulating property cause CFRP being struck by lightning or easily causing damage during low velocity impact
Wound.
For the conductive modified of CFRP, the method for main flow is by the micro Nano material with electric conductivity one both at home and abroad at present
As include spherical micro-nano conductive particle, one-dimensional CNT or metal nanometer line, two dimension Graphene and nanometer stone
Ink sheet, the resin-rich area being added in composite.Interlayer toughened for CFRP is modified, and correlational study layer both domestic and external goes out not
Thoroughly, research is added a kind of thermoplastic resin or particle (such as rubber particles adds in the resin-rich area of composite earlier
Plus) carry out in-situ flexible and be modified, some scholars propose to lay a kind of nano-high molecule film in the resin-rich area of composite later
Or the non-woven fabrics of areal density, high porosity carry out toughening modifying of offing normal.Wherein nano-high molecule film is usually to utilize casting film
What method was fabricated by, non-woven fabrics are usually to be produced using electrostatic spinning, spunbond or melt blown technology.Nearest CFRP's leads
The designing technique of electricity-toughening modifying integration is gradually taken seriously.
Chinese patent (a kind of toughness reinforcing non-woven fabrics containing the coat of metal and preparation method, 103552318 B of CN) make use of
A kind of toughness reinforcing non-woven fabrics containing the coat of metal, make composite while Toughening Properties are ensured by the method for chemical deposit
The conductive characteristic of composite is greatly improved.But the method for this chemical deposit can consume substantial amounts of water and chemical drugs
Product, cause substantial amounts of heavy metal pollution and the waste of water resource, and the thickness of the coat of metal cannot be carried out fine
Control, the addition of coated metal also causes whole composite quality increased, while composite non-woven fabrics fiber-
Between metal-matrix resin, the not enough problem of Presence of an interface strength, causes the decline of fracture strength between composite layer.
Chinese patent (conductive programmable toughness reinforcing non-woven fabrics and composite, 104589743 A of CN) proposes that one kind is led
The programmable toughness reinforcing non-woven fabrics of electricity and composite.This method is that organic silver solution is coated in non-woven fabrics by arbitrary graphic pattern
Surface, it is then thermally treated again after a certain amount of solvent of volatilization removing at a certain temperature, obtain with pattern conductive structure
Non-woven fabrics.But the technique of this conductive modified is complex, the organic silver solution for processing non-woven fabrics can cause certain dirt
Dye and the wasting of resources, and the more difficult control of stability of this coating processes in nonwoven surface, extra increased organic silver
The weight of applicator has been affected on the overall weight of composite, and material cost is higher.
In Chinese patent (a kind of conductive fiber of carbon nanotubes and preparation method thereof, 1226472 C of CN) by polyester,
CNT and coupling agent are mixed according to certain mass ratio, extrude through screw extruder and spinning technique is prepared into
Conductive fiber, is characterized in make use of the good conductive properties of CNT and high draw ratio to prepare conductive fiber,
Simultaneously special coupling agent can strengthen the interaction between CNT and polyester molecule, but the drawing adopted by this method
Stretching process is little to the drafting multiple of fiber, causes CNT random or degree of orientation is little in the distribution of fibrous inside, therefore this
The mode of kind is for the content for reducing CNT while the action effect for forming conductive network is limited.Importantly, passing
In the experimental branch line technique of system, drawing process produces enough orientation insufficient for CNT to the draw ratio of fiber,
Therefore the conductive percolation threshold of its CNT being less than in the fiber can be caused when content of carbon nanotubes is relatively low, shape is not enough to
Into conductive network.In addition, composite spinning necessarily conductive agglomerate raw material and polyester slice are squeezed from different screw extruders respectively
Go out, then from spinneret profiled-cross-section, spray in different apertures, and the conductive filler percentage composition in conductive agglomerate
The percentage composition being necessarily higher than in the conductive fiber for finally obtaining, especially when conductive filler content is higher, this may lead
The spray webbing hole plug of conductive agglomerate raw material is caused, smooth spinning is difficult.
To sum up, develop a kind of while with high conductance, higher heat-conductivity, relatively low conductive filler content and producing
Low cost, production process non-environmental-pollution, the nonwoven fabric technology that the technological process of production is short, production efficiency is high, for Aero-Space
Realize significant with the conduction of carbon fiber enhancement resin base composite material-toughening modifying integration, and demand is urgent.
The content of the invention
In order to overcome above-mentioned deficiency, the present invention to provide a kind of preparation method of the melt-blown compound nonwoven cloth of conduction-toughness reinforcing, its
Technology of preparing route as shown in figure 1, including：(1) preparation of conductive agglomerate, specifically using dispersant and the height of high-speed mixer
Speed shearing and the dual function for colliding cause one-dimensional electric Nano filling uniformly to mix with polymer beads, then by twin screw
Extruder extrusion preparation is uniformly dispersed, the conductive agglomerate of high concentration；(2) preparation of the conduction-toughness reinforcing with melt-blown compound nonwoven cloth, tool
Body is to realize one-dimensional electric Nano filling in fiber using the drawing-off effect of the high velocity, hot air in melt spraying non-woven fabrics production process
Internal and surface along fiber axial orientation, so as to substantially reduce the conductive percolation threshold of electrically conductive composite fibre, while also ensuring that
The excellent conductive performance of the non-woven fabrics.It is high by non-woven fabrics porosity obtained by meltblown, fibre diameter it is thin (generally 1～
10 μm), it is easy to the abundant infiltration of liquid thermosetting resin, fine two-arch tunnel structure is formed after CFRP curing moldings,
And then improve the electrical conductivity of the interlaminar fracture toughness, shock resistance and thickness direction of CFRP.In addition, the technique of melt spraying non-woven fabrics
Flow process is short, product thickness and grammes per square metre is controllable, production process non-environmental-pollution, low production cost so which is in aerospace field
It is worth with huge applications.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of melt-blown compound nonwoven cloth of conduction-toughness reinforcing, the electrical conductivity in the nonwoven thickness direction is 1.8 × 10-4~
1.0×10-1S/cm, wherein, the mass fraction of one-dimensional electric Nano filling is 0.05～6%, and average fibre diameter is 1～10 μ
m。
, during subsequent forming, typically using mechanical traction, pull strength is little, conductive filler is in fibre for existing conductive fiber
The internal irregular distribution of dimension so that the conductive percolation threshold of conductive fiber is higher, it is impossible to meet the fields such as Aero-Space to thermoplastic
The requirement of property non woven cloth in polymer high conductivity, high-fire resistance and high-durability.For this purpose, present system have studied existing spinning
Technique prepares conductive filler arrangement rule in the fibre during conductive fiber, finds：It is different from common spinning technique, by
There are the drawing-off effect of special high-temperature high-speed airflow, its drawing-off great efforts to fiber, its drawing-off in meltblown spinning phase
Effect can cause the one-dimensional electric Nano filling for having certain draw ratio to be orientated vertically in the fibre, reduce leading for fiber
Electric percolation threshold, greatly enhances the electric conductivity of non-woven fabrics.
In existing heterotypic fibre, due to obstruct and the larger fibre diameter of abnormally-structured middle different component, carbon nanometer
It is difficult to be cross-linked with each other between pipe component.And the present invention realizes taking one-dimensional electric filler by the drawing-off effect of high-temperature high-speed airflow
To effective control, make one-dimensional electric filler in the fibre somewhere it is interlaced formed conductive network node (as shown in Figure 3), enter
And conductive network is constituted, it is effectively reduced the conductive percolation threshold of non-woven fabrics.I.e.：Under identical one-dimensional electric filer content,
The conductive percolation threshold of the present invention is lower.
Present invention also offers a kind of preparation method of conduction-toughness reinforcing with melt-blown compound nonwoven cloth, including：
With polymer chips I, one-dimensional electric Nano filling as raw material, under conditions of dispersant is present, mechanical pelleting is obtained
Conductive agglomerate；
Non-woven fabrics are produced using meltblown as raw material with conductive agglomerate and polymer chips II, is obtained final product.
Preferably, the mechanical pelleting is concretely comprised the following steps：By polymer chips I, one-dimensional electric Nano filling, dispersant
After mixed at high speed, screw extrusion molding, pelletize are obtained final product.
Preferably, the polymer chips I, one-dimensional electric Nano filling, the mass ratio of dispersant are 75～94：5～15：
1～10.
Preferably, the polymer chips I, II be polyester, Merlon, polybutylene terephthalate (PBT), polyamide,
In polyesteramide, polystyrene, politef, PAEK, polyether-ether-ketone, polysulfones or polyphenylene sulfide thermoplastic polymer
It is a kind of.
In research, in order to match with air velocity during follow-up high-temperature high-speed airflow drawing-off, currently preferred one
Dimension electrical-conductive nanometer filler adopt a diameter of 20～50nm, draw ratio for 500～1100 metal nanometer line, or a diameter of 0.6～
10nm, draw ratio are 1000～2000 CNT or the one kind in nickel-plating carbon nanotube.
Research shows：Conductive filler draw ratio is bigger to require that drawing-off wind speed is bigger, and fibre diameter is also less.If draw ratio
Less than 500, it is unfavorable for the formation of conductive network；If draw ratio is more than 2000, one-dimensional electric Nano filling can be caused long,
Fibre diameter rank is reached, is unfavorable for being smoothed out for follow-up drafting process.
Preferably, the dispersant is the one kind or many in polyacrylic acid sodium salt, polyvinyl alcohol, Polyethylene Glycol or paraffin
Kind.
Preferably, the mass ratio of the conductive agglomerate and polymer chips II is 1:1～10.
Present invention also offers a kind of preparation method of the preferably conduction-toughness reinforcing with melt-blown compound nonwoven cloth, including：
First, be the one-dimensional electric Nano filling containing high concentration and finely dispersed conductive agglomerate preparation, raw material bag
Include three kinds of components：Polymer chips, one-dimensional electric Nano filling, dispersant, its quality proportioning is：Polymer chips 75～94
Part, 5～15 parts of one-dimensional electric Nano filling, 1～10 part of dispersant.By three kinds of components Jing after high-speed mixer mixing double spiral shells of Jing again
Bar extruder extrude, cooling shaping be obtained be uniformly dispersed, the conductive agglomerate of the one-dimensional electric Nano filling containing high concentration.
Described polymer chips selects polyester, Merlon, polybutylene terephthalate (PBT), polyamide, polyamide
One kind in ester, polystyrene, politef, PAEK, polyether-ether-ketone, polysulfones or polyphenylene sulfide thermoplastic polymer.
The melt index (MFI) of described polymer chips is generally 400～1500g/10min.
Described one-dimensional electric Nano filling adopt a diameter of 20～50nm, draw ratio for 500～1100 metal nano
Line, or CNT that a diameter of 0.6～10nm, draw ratio are 1000～2000 or the one kind in nickel-plating carbon nanotube.
Described dispersant is one or more in polyacrylic acid sodium salt, polyvinyl alcohol, Polyethylene Glycol or paraffin.
The present invention provides the preparation of a kind of one-dimensional electric Nano filling containing high concentration and finely dispersed conductive agglomerate
Method, the method are carried out in accordance with the following steps：
(1) process is dried to polymer chips and one-dimensional electric Nano filling in advance, then according to mass ratio will
Polymer chips, one-dimensional electric Nano filling and dispersant are added in high-speed mixer together, mixing temperature control 90～
150 DEG C so as to be sufficiently mixed uniform.
(2) above-mentioned mixture is fed from the hopper of screw extruder, screw speed is controlled in 30～100r/min, spiral shell
The extruding end melt temperature of bar extruder is controlled 20～80 DEG C on melting point polymer, extruded, cooling, molding, chopping system
The composition polymer master batch of one-dimensional electric Nano filling that must be containing high concentration.
Secondly, it is preparation of the conduction-toughness reinforcing with melt-blown compound nonwoven cloth, its technological process is as shown in Fig. 2 concrete prepare step
It is rapid as follows：
(1) the composition polymer master batch of the one-dimensional electric Nano filling containing high concentration obtained above is cut with the polymer
Piece is dried and mixes, and its mass ratio is 1:1～10.
(2) mixed material and then composition polymer master batch with the polymer chips is fed from the hopper of screw extruder
Enter, screw speed control is controlled 40 on melting point polymer in 10～60r/min, the extruding end melt temperature of screw extruder
～110 DEG C.
(3) melt is sprayed from spinneret orifice after filter, dosing pump are transported to meltblown beam, in the air of high temperature and high speed
And melt stream is subject to extreme drawing-off and is formed superfine fibre.General conductive filler draw ratio is got over
Require that greatly drawing-off wind speed is bigger, fibre diameter is also less, thus the temperature of high temperature and high speed air 5 typically on the melt temperature～
10 DEG C, speed is traditionally arranged to be 15000～20000m/min.To realize the high-orientation of one-dimensional electric Nano filling, for straight
The metal nanometer line that footpath is 20～100nm, draw ratio is 500～1100, drawing-off wind speed are set to 15000～17000m/min；
For CNT or nickel-plating carbon nanotube that a diameter of 0.6～10nm, draw ratio are 1000～2000, drawing-off wind speed is set to
17000～20000m/min.Wherein, high temperature and high speed air draft and one-dimensional electric Nano filling orientation process and fiber cross section
As shown in figure 3, mixing polymer melts are sprayed from melt canal (5-1), the high temperature by blowing out from hot-air channel (5-2) is empty
The high speed drawing-off effect of gas so that polymer melt is subject to extremely stretching to form ultra-fine melt stream, and ultra-fine melt stream is again
It is cooled the cooling of air (5-3) and is shaped to superfine fibre.The one-dimensional electric Nano filling (5-4) of fibrous inside is with big point
Subchain is orientated vertically, is finally substantially axially arranged in fibrous inside and surface, the interlaced formation conductive mesh in part
Network node.
(4) superfine fibre obtained above gathers into net roller or fleece is formed on lace curtaining, and wherein spinneret is arrived
Distance is received referred to as into net roller or into the distance of lace curtaining, general control is in 20～60cm.Wherein into the transporting velocity root of lace curtaining
Control according to the non-woven fabrics grammes per square metre needed for final, it is ensured that the grammes per square metre of last non-woven fabrics is in 5～50g/m2Between.
(5) finally by the melt spraying non-woven fabrics obtained on lace curtaining cutting, winding and packing.
Described conduction-toughness reinforcing mass fraction of the one-dimensional electric Nano filling in melt-blown compound nonwoven cloth is 0.05～
6%, average fibre diameter is 1～10 μm, and the electrical conductivity in nonwoven thickness direction is 1.8 × 10-4～1.0 × 10-1S/cm。
Present invention also offers non-woven fabrics prepared by arbitrary said method.
Present invention also offers above-mentioned non-woven fabrics are manufactured in Aero-Space equipment, and conductive, electromagnetic shielding, antistatic neck
Application in domain.
Beneficial effects of the present invention
(1) prepare the polymer masterbatch of the one-dimensional electric Nano filling containing higher concentration in the present invention first, be easy to follow-up
Proportioning and its mixing with polymer chips again.
(2) synergism of shearing of the high-speed mixer in mixed at high speed, collision and dispersant is utilized in the present invention, then
Jing double screw extruders extrusion can realize that one-dimensional electric Nano filling preferably disperses in the polymer at high temperature.
(3) one-dimensional leading is realized in the drawing-off effect in the present invention using high velocity, hot air in meltblown nonwovens preparation process
Electric Nano filling significantly reduces this in fibrous inside and surface while ensureing that conductive network builds along fiber axial orientation
Plant the conductive percolation threshold of composite.
(4) fiber in the present invention by meltblown production is higher compared with the drafting multiple of traditional textile chemical fibre, resulting
Fibre diameter is thinner, and typically at 1～10 μm, and melt spraying non-woven fabrics porosity is high, consequently facilitating liquid thermosetting resin is abundant
Infiltration, forms fine two-arch tunnel structure after CFRP curing moldings, and then improves the interlaminar fracture toughness of CFRP, anti-impact
Hit the electrical conductivity of performance and thickness direction.
(5) conduction-toughness reinforcing of the invention has high conductivity and toughening effect concurrently with melt-blown compound nonwoven cloth, can be effectively real
The design object of existing CFRP conductions-toughening modifying integration.And this one-step method into cloth technological process is short, production efficiency
High, low production cost and non-environmental-pollution.
(6) preparation method of the present invention is simple, practical, it is easy to promote.
Description of the drawings
Fig. 1. production technology route map of the conduction-toughness reinforcing with melt-blown compound nonwoven cloth.
Fig. 2. conduction-toughness reinforcing is with melt-blown compound nonwoven cloth production technological process；
Wherein, 1 hopper, 2 screw extruders, 3 fondant filters, 4 dosing pumps, 5 meltblown beams, 6 one-tenth
Lace curtaining, 7 fleeces, 8 aspirators, 9 coiler devices.
Fig. 3. hot-air drawing-off and one-dimensional electric Nano filling orientation process schematic diagram；
Wherein, 5-1 polymer melts passage, 5-2 hot-air channels, 5-3 cooling air passages, 5-4 are one-dimensional
Electrical-conductive nanometer filler.
Specific embodiment
By the following examples feature of present invention and other correlated characteristics are described in further detail, in order to the same industry
The understanding of technical staff.
Embodiment 1：
85 parts of polyphenylene sulfide slice is selected, its MFI is 460g/10min, and a diameter of 40nm, draw ratio are 800 silver nanoparticle
10 parts of line, 5 parts of polyacrylic acid sodium salt, by three kinds of components, Jing after high-speed mixer mixing, Jing double screw extruders are extruded, and are cooled to
Type is obtained the composite polyphenylene sulfide master batch of the nano silver wire containing high concentration.
The concrete preparation process of the composite polyphenylene sulfide master batch of this nano silver wire containing high concentration is as follows：
(1) in advance poly-p-phenylene sulfide ether section nano silver wire and process is dried, then according to mass ratio is by polyphenylene sulfide
Ether section, nano silver wire and polyacrylic acid sodium salt are added in high-speed mixer together, and mixing temperature is controlled at 120 DEG C so as to
It is sufficiently mixed uniform.
(2) above-mentioned mixture is fed from the hopper of screw extruder, screw speed control is squeezed in 60r/min, screw rod
The extruding end melt temperature for going out machine is controlled to 320 DEG C, and extruded, cooling, molding, chopping are obtained the nano silver wire containing high concentration
Composite polyphenylene sulfide master batch.
Secondly, it is the preparation of conduction-toughness reinforcing nano silver wire/polyphenylene sulfide meltblown compound nonwoven cloth, its preparation process is such as
Under：
(3) the composite polyphenylene sulfide master batch of the nano silver wire containing high concentration obtained above is pressed with polyphenylene sulfide slice
It is 1 according to mass ratio:1 is dried and mixes.
(4) mixed material and then composite polyphenylene sulfide master batch with polyphenylene sulfide slice is fed from the hopper of screw extruder
Enter, screw speed is controlled in 50r/min, and the extruding end melt temperature of screw extruder is controlled to 330 DEG C.
(5) melt is sprayed from spinneret orifice after filter, dosing pump are transported to meltblown beam, in the air of high temperature and high speed
And melt stream is subject to extreme drawing-off and is formed superfine fibre.The wherein temperature of high temperature and high speed air
Spend for 290 DEG C, speed is 16000m/min, wherein cooling air is the air under room temperature.
(6) superfine fibre obtained above gathers into net roller or fleece is formed on lace curtaining, and wherein spinneret is arrived
Distance is referred to as received into net roller or into the distance of lace curtaining, is controlled in 50cm.Transporting velocity wherein into lace curtaining is according to final institute
The non-woven fabrics grammes per square metre control for needing, it is ensured that the grammes per square metre of last non-woven fabrics is 15g/m2。
(7) quality of the nano silver wire in conduction-toughness reinforcing nano silver wire/polyphenylene sulfide meltblown compound nonwoven cloth obtained in
5%, average fibre diameter is 7 μm to fraction, and the electrical conductivity in nonwoven thickness direction is 8.2 × 10-2S/cm。
Embodiment 2：
85 parts of polyamide 6 section is selected, its MFI is 1100g/10min, and a diameter of 7nm, draw ratio are 1600:1 carbon is received
12 parts of mitron, 3 parts of polyvinyl alcohol, by three kinds of components, Jing after high-speed mixer mixing, Jing double screw extruders are extruded, cooling shaping
6 master batch of composite polyamide of the CNT containing high concentration is obtained.
The concrete preparation process of 6 master batch of composite polyamide of this CNT containing high concentration is as follows：
(1) process is dried to polyamide 6 section and CNT in advance, then according to mass ratio is by polyamide 6
Section, CNT and polyvinyl alcohol are added in high-speed mixer together, and mixing temperature is controlled at 100 DEG C so as to fully mixed
Close uniform.
(2) above-mentioned mixture is fed from the hopper of screw extruder, screw speed control is squeezed in 65r/min, screw rod
The extruding end melt temperature for going out machine is controlled to 280 DEG C, and extruded, cooling, molding, chopping are obtained the CNT containing high concentration
6 master batch of composite polyamide.
Secondly, it is the preparation of conduction -6 melt-blown compound nonwoven cloth of toughness reinforcing carbon nano tube/polyamide 6 amine, its preparation process is such as
Under：
(3) by 6 master batch of composite polyamide of the CNT containing high concentration obtained above and polyamide 6 section according to
Mass ratio is 1:1 is dried and mixes.
(4) mixed material and then 6 master batch of composite polyamide with polyamide section is fed from the hopper of screw extruder,
Screw speed is controlled in 45r/min, and the extruding end melt temperature of screw extruder is controlled to 290 DEG C.
(5) melt is sprayed from spinneret orifice after filter, dosing pump are transported to meltblown beam, in the air of high temperature and high speed
And melt stream is subject to extreme drawing-off and is formed superfine fibre.The wherein temperature of high temperature and high speed air
Degree is set to 230 DEG C, and speed is 20000m/min, and wherein cooling air is the air under room temperature.
(6) superfine fibre obtained above gathers into net roller or fleece is formed on lace curtaining, and wherein spinneret is arrived
Distance is referred to as received into net roller or into the distance of lace curtaining, is controlled in 40cm.Transporting velocity wherein into lace curtaining is according to final institute
The non-woven fabrics grammes per square metre control for needing, it is ensured that the grammes per square metre of last non-woven fabrics is 12g/m2。
(7) quality of the conduction-toughness reinforcing obtained in the CNT in melt-blown 6 compound nonwoven cloth of carbon nano tube/polyamide 6 amine
6%, average fibre diameter is 4 μm to fraction, and the electrical conductivity in nonwoven thickness direction is 5.9 × 10-2S/cm。
Finally it should be noted that the foregoing is only the preferred embodiments of the present invention, this is not limited to
Bright, although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, which is still
Technical scheme described in previous embodiment can be modified, or equivalent is carried out to which part.It is all at this
Within bright spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in protection scope of the present invention
Within.Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not to the scope of the present invention
Restriction, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not required to
The various modifications made by creative work is paid or deformation are still within protection scope of the present invention.
Claims (10)
1. a kind of melt-blown compound nonwoven cloth of conduction-toughness reinforcing, it is characterised in that the electrical conductivity in the nonwoven thickness direction is
1.8×10-4～1.0 × 10-1S/cm, wherein, the non-woven fabrics include that the one-dimensional electric that mass fraction is 0.05～6% is received
Rice filler, the non-woven fabrics fiber average diameter are 1～10 μm.
2. preparation method of a kind of conduction-toughness reinforcing with melt-blown compound nonwoven cloth, it is characterised in that include：
With polymer chips I, one-dimensional electric Nano filling as raw material, under conditions of dispersant is present, mechanical pelleting obtains conductive
Master batch；
Non-woven fabrics are produced using meltblown as raw material with conductive agglomerate and polymer chips II, is obtained final product.
3. method as claimed in claim 2, it is characterised in that the mechanical pelleting is concretely comprised the following steps：By polymer chips
Ith, after one-dimensional electric Nano filling, dispersant mixed at high speed, screw extrusion molding, pelletize are obtained final product.
4. method as claimed in claim 2, it is characterised in that the polymer chips I, one-dimensional electric Nano filling, dispersion
The mass ratio of agent is 75～94：5～15：1～10.
5. method as claimed in claim 2, it is characterised in that the polymer chips I, II is polyester, Merlon, poly- right
Benzene dicarboxylic acid butanediol ester, polyamide, polyesteramide, polystyrene, politef, PAEK, polyether-ether-ketone, polysulfones or
One kind in polyphenylene sulfide thermoplastic polymer.
6. method as claimed in claim 2, it is characterised in that the one-dimensional electric Nano filling using a diameter of 20～
50nm, draw ratio are 500～1100 metal nanometer line, or the carbon that a diameter of 0.6～10nm, draw ratio are 1000～2000 is received
One kind in mitron or nickel-plating carbon nanotube.
7. method as claimed in claim 2, it is characterised in that the dispersant is polyacrylic acid sodium salt, polyvinyl alcohol, poly- second
One or more in glycol or paraffin.
8. method as claimed in claim 2, it is characterised in that the mass ratio of the conductive agglomerate and polymer chips II is 1:
1～10.
9. the non-woven fabrics that prepared by any one of claim 2-8 methods described.
10. non-woven fabrics described in claim 1 or 9 are manufactured in Aero-Space equipment, and conductive, electromagnetic shielding, antistatic field
In application.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107128051A (en) * | 2017-06-21 | 2017-09-05 | 深圳市三上高分子环保新材料股份有限公司 | Pre-coating film and its manufacture method and device systems with pile effects |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2409837A (en) * | 2004-01-10 | 2005-07-13 | Hexcel Composites Ltd | Fibre reinforced resin assembly |
| CA2763621A1 (en) * | 2009-05-28 | 2010-12-02 | Cytec Technology Corp. | Particle-toughened fiber-reinforced polymer composites |
| CN102516569A (en) * | 2011-11-18 | 2012-06-27 | 中国航空工业集团公司北京航空材料研究院 | Preparation method for carbon nanotube non-woven fabric interlayer modified fiber reinforced composite materials |
| CN102704351A (en) * | 2012-05-18 | 2012-10-03 | 中国航空工业集团公司北京航空材料研究院 | Preparation method of carbon nano tube non-woven fabrics |
| CN102785437A (en) * | 2012-07-19 | 2012-11-21 | 中国航空工业集团公司北京航空材料研究院 | Composite conductive film, its preparation method and its application |
| CN102991009A (en) * | 2012-11-16 | 2013-03-27 | 中国航空工业集团公司北京航空材料研究院 | Interlayer toughening carbon fiber-metal layer plywood |
-
2017
- 2017-01-13 CN CN201710025191.0A patent/CN106521805B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2409837A (en) * | 2004-01-10 | 2005-07-13 | Hexcel Composites Ltd | Fibre reinforced resin assembly |
| CA2763621A1 (en) * | 2009-05-28 | 2010-12-02 | Cytec Technology Corp. | Particle-toughened fiber-reinforced polymer composites |
| CN102516569A (en) * | 2011-11-18 | 2012-06-27 | 中国航空工业集团公司北京航空材料研究院 | Preparation method for carbon nanotube non-woven fabric interlayer modified fiber reinforced composite materials |
| CN102704351A (en) * | 2012-05-18 | 2012-10-03 | 中国航空工业集团公司北京航空材料研究院 | Preparation method of carbon nano tube non-woven fabrics |
| CN102785437A (en) * | 2012-07-19 | 2012-11-21 | 中国航空工业集团公司北京航空材料研究院 | Composite conductive film, its preparation method and its application |
| CN102991009A (en) * | 2012-11-16 | 2013-03-27 | 中国航空工业集团公司北京航空材料研究院 | Interlayer toughening carbon fiber-metal layer plywood |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107128051A (en) * | 2017-06-21 | 2017-09-05 | 深圳市三上高分子环保新材料股份有限公司 | Pre-coating film and its manufacture method and device systems with pile effects |
| CN108486880A (en) * | 2018-02-13 | 2018-09-04 | 东莞市联洲知识产权运营管理有限公司 | A kind of non-metal base polyether-ether-ketone that pro-skin is high-strength suction corrugated material and preparation method thereof |
| CN109183185A (en) * | 2018-09-04 | 2019-01-11 | 广州市花林景观工程有限公司 | Conveyer belt with antistatic effect |
| CN110230118A (en) * | 2019-06-24 | 2019-09-13 | 绍兴诚邦高新纤维科技有限公司 | A kind of processing method of veneer polyisocyanate polyester fiber |
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| CN111926459A (en) * | 2020-08-14 | 2020-11-13 | 青岛华仕达机器股份有限公司 | Continuous melt-blown fabric production line |
| CN112281309A (en) * | 2020-10-22 | 2021-01-29 | 江阴市中兴无纺布有限公司 | Antibacterial radiation-proof non-woven fabric and preparation method thereof |
| CN112281309B (en) * | 2020-10-22 | 2021-12-31 | 江阴市中兴无纺布有限公司 | Antibacterial radiation-proof non-woven fabric and preparation method thereof |
| CN112408058A (en) * | 2020-10-26 | 2021-02-26 | 温州市锦源合成纤维有限公司 | Non-woven fabric processing equipment |
| CN112408058B (en) * | 2020-10-26 | 2022-08-09 | 温州市锦源合成纤维有限公司 | Non-woven fabric processing equipment |
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| CN116590917B (en) * | 2023-07-13 | 2023-10-03 | 苏州扬越高新材料有限公司 | Modified electromagnetic shielding fiber containing conductive carbon material, and preparation method and application thereof |
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