CN105603603A - Composite elastic conductive fibers and preparation method of composite elastic conductive fibers - Google Patents
Composite elastic conductive fibers and preparation method of composite elastic conductive fibers Download PDFInfo
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- CN105603603A CN105603603A CN201610049033.4A CN201610049033A CN105603603A CN 105603603 A CN105603603 A CN 105603603A CN 201610049033 A CN201610049033 A CN 201610049033A CN 105603603 A CN105603603 A CN 105603603A
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- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
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- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/38—Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
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- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/38—Polyurethanes
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- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/10—Inorganic fibres based on non-oxides other than metals
- D10B2101/12—Carbon; Pitch
- D10B2101/122—Nanocarbons
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- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
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- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
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- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/061—Load-responsive characteristics elastic
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- D10B2401/00—Physical properties
- D10B2401/16—Physical properties antistatic; conductive
Abstract
The invention provides composite elastic conductive fibers and a preparation method of the composite elastic conductive fibers. The preparation method comprises the following steps: leading out elastic fibers and carbon nano tube fibers from a wrapping machine respectively; fixing one end of each carbon nano tube fiber and elastic fibers at one end of a collection shaft; starting the wrapping machine and wrapping the carbon nano tube fibers on the surfaces of the elastic fibers to form carbon nano tube fiber wrapped yarns, wherein the spiral pitch of the carbon nano tube fibers on the elastic fibers is adjusted through setting the stretching ratio of the elastic fibers, reeling and unreeling speeds of the collection shaft and an output shaft, and the rotary speed of a wrapping head; carrying out heat treatment and package on the carbon nano tube fiber wrapped yarns. Compared with the prior art, a wrapping method is adopted; the carbon nano tube fibers are uniformly wrapped on the surfaces of the elastic fibers, and then are subjected to heat treatment and package, so that the common disadvantages of composite elastic conductive fibers in the prior art that the elasticity is relatively low, the fibers are easy to peel or break away, are poor in cyclic utilization and are not easily subjected to secondary processing and the like can be effectively alleviated.
Description
Technical field
The present invention relates to nano material and manufacture field, relate in particular to a kind of composite elastic conductive fiber and preparation method thereof.
Background technology
Along with the fast development of electronic information technology, people have higher requirement to electronic product and wearable electronic product, electronic product just with very fast speed to future developments such as intellectuality, microminiaturization, portability, flexibility, elasticity, associated product development is also subject to industry extensive concern, meanwhile, be also badly in need of developing to aspects such as functionalization, intellectuality, elasticity, flexibility as the conductive fiber of the inner indispensable transmission channel of electronic product and intelligent artifact.
The conductive fiber using is in the market mainly all kinds of wires, but flexibility wiry and elasticity are poor, aspect function intelligent use, embodying increasing inadaptability, also there is same problem in the another kind of carbon fiber with electric conductivity, and there is electric conductivity poor, the shortcoming such as fragility is obvious. For these problems, in recent years, many researchers adopt the whole bag of tricks to prepare various informative elastic conduction fiber, for example, adopt elastomer as sandwich layer, and conducting particles is made the composite elastic conductive fiber of skin-core structure as cortex; Or conducting powder is evenly mixed with elastomeric polymer, the composite elastic conductive fiber that obtains mixing, but above-mentioned Conductivity of Fiber is electrically on the low side, can only be used for antistatic; Also there is researcher by metal nanometer line being adsorbed on to elastomer surface, then make both in conjunction with preparing elastic conduction fiber through plasma or heat treatment, but the addition of metallic generally can be restricted, the electric conductivity of prepared elastic conduction fiber is more limited.
In sum, current elastic conduction fiber preparation method has some problems, is necessary to propose a kind of novel composite elastic conductive fiber and preparation method thereof.
Summary of the invention
The object of the present invention is to provide a kind of composite elastic conductive fiber addressing the above problem and preparation method thereof.
For achieving the above object, the invention provides a kind of composite elastic conductive fiber, it comprises elastomer, carbon nano-tube fibre and elastomeric polymer, the wrapped surface in described elastomer of described carbon nano-tube fibre forms carbon nano-tube fibre fasciated yarn, and described elastomeric polymer is coated on the surface of described carbon nano-tube fibre fasciated yarn.
As a further improvement on the present invention, the screw pitch of described carbon nano-tube fibre on described elastomer is 0.1mm ~ 2cm, and described elastomer is polyurethane elastomeric fiber or polyesters elastomer or complex polyester elastomer or polyolefin elastic fiber or polyester ether elastic fiber or textured yarn class elastomer.
Correspondingly, a kind of preparation method of composite elastic conductive fiber, said method comprising the steps of:
S1, draw elastomer from the output shaft of winding machine, and its one end is fixed on the collection axle of winding machine;
S2, draw carbon nano-tube fibre from the taping head of winding machine, and one end of carbon nano-tube fibre and elastomer are positioned to the one end of collecting axle fix;
S3, unlatching winding machine, carbon nano-tube fibre is wrapped in the surface of elastomer, form carbon nano-tube fibre fasciated yarn, wherein, regulate the screw pitch of carbon nano-tube fibre on elastomer by extensibility, collection axle and the unwinding and rewinding speed of output shaft and the rotating speed of taping head that elastomer is set;
S4, the heat treatment of described carbon nano-tube fibre fasciated yarn is obtained to elementary elastic conduction fiber;
S5, adopt elastomeric polymer to encapsulate elementary elastic conduction fiber to obtain composite elastic conductive fiber.
As a further improvement on the present invention, described taping head is arranged between described output shaft and described collection axle, described taping head comprises the first rotating part and is located at the second rotating part on described the first rotating part, described the first rotating part and described the second rotating part are respectively around the axis rotation of himself, and described carbon nano-tube fibre is wrapped on described the second rotating part.
As a further improvement on the present invention, described the first rotating part is discoid, which is provided with a through hole wearing for described elastomer, and the internal diameter of described through hole is greater than the diameter of described elastomer.
As a further improvement on the present invention, the extensibility of described elastomer is 0-500%, and the unwinding and rewinding speed of described collection axle and output shaft is identical, is all more than or equal to 10r/min, and the rotary speed of described the first rotating part is more than or equal to 10r/min.
As a further improvement on the present invention, in described S2 step, " open winding machine, carbon nano-tube fibre is wrapped in the surface of elastomer, forms carbon nano-tube fibre fasciated yarn " is specially:
Open winding machine, the speed that unreels that the rolling speed of collection axle is synchronized with output shaft is to make elastomer remain that the extensibility of setting is constant, cooperation rotation by the first rotating part and the second rotating part in the surface of elastomer, forms carbon nano-tube fibre fasciated yarn by wrapped carbon nano-tube fibre.
As a further improvement on the present invention, described heat treated temperature is 50 DEG C ~ 700 DEG C, and the time is 1min ~ 5h.
As a further improvement on the present invention, described " adopting elastomeric polymer to encapsulate elementary elastic conduction fiber " step is specially: by elastomeric polymer dipping or infiltrate or spraying or the surface that is spin-coated on described elementary elastic conduction fiber encapsulate.
As a further improvement on the present invention, described elastomeric polymer is dimethyl silicone polymer or high resilience polyurethane, and the screw pitch of described carbon nano-tube fibre on described elastomer is 0.1mm ~ 2cm.
The invention has the beneficial effects as follows: the present invention adopts wrapped method, by the evenly wrapped surface at elastomer of carbon nano-tube fibre, then heat-treat and make carbon nano-tube fibre and elastomer carry out good combination, finally encapsulate with elastomeric polymer in elementary elastic conduction fiber outside, can effectively solve in prior art the ubiquitous elasticity of composite elastic conductive fiber on the low side, easily peel off or disengaging, recycling are poor, be difficult for carrying out the shortcomings such as secondary operations.
Brief description of the drawings
Fig. 1 is the structural representation of the preparation facilities of carbon nano-tube fibre fasciated yarn in an embodiment of the present invention;
Fig. 2 is the flow chart of composite elastic conductive fiber preparation method in an embodiment of the present invention;
Fig. 3 a, Fig. 3 b be in an embodiment of the present invention carbon nano-tube fibre with the wrapped optical photograph in the lip-deep composite elastic conductive fiber of elastomer of different screw pitches;
Fig. 4 is that in an embodiment of the present invention, composite elastic conductive fiber increases resistance variations situation map with extensibility;
Fig. 5 is the situation of change figure that in an embodiment of the present invention, composite elastic conductive fiber increases resistance with washing time and number of times.
Detailed description of the invention
Describe the present invention below with reference to each embodiment shown in the drawings. But these embodiments do not limit the present invention, the conversion in structure, method or function that those of ordinary skill in the art makes according to these embodiments is all included in protection scope of the present invention.
Join Fig. 1 and Fig. 2, introduce a composite elastic conductive fiber preparation method's of the present invention detailed description of the invention. In the present embodiment, the method specifically comprises:
S1, draw elastomer from the output shaft of winding machine, and its one end is fixed on the collection axle of winding machine. Winding machine 10 comprises output shaft (not shown), collects axle (not shown) and taping head 11, and wherein, taping head 11 is located at output shaft and is collected between axle. Elastomer 20 is wrapped on output shaft in advance, and stretches out a free end, and this free end is fixed on and is collected on axle, collects axle rotation and can realize elastomer 20 in the winding of collecting on axle, and the extensibility of elastomer is 0-500%.
S2, draw carbon nano-tube fibre from the taping head of winding machine, and one end of carbon nano-tube fibre and elastomer are positioned to the one end of collecting axle fix. Taping head 11 comprises that the first rotating part 111 and the second rotating part 112, the first rotating parts 111 and the second rotating part 112 that are located on the first rotating part 111 can rotate around the axis of himself respectively. In advance carbon nano-tube fibre 30 is wrapped on the second rotating part 112, and stretches out a free end, this free end and elastomer 20 are positioned to the one end of collecting axle and fix.
S3, unlatching winding machine, carbon nano-tube fibre is wrapped in the surface of elastomer, form carbon nano-tube fibre fasciated yarn, wherein, regulate the screw pitch of carbon nano-tube fibre on elastomer by extensibility, collection axle and the unwinding and rewinding speed of output shaft and the rotating speed of taping head that elastomer is set.
Particularly, the first rotating part 111 of taping head 11 is discoid, which is provided with a through hole 1111, elastomer 20 is arranged in through hole 1111, the internal diameter of through hole 1111 is greater than the diameter of elastomer 20, elastomer 20 is not touched the inwall of through hole 1111, and the second rotating part 112 is arranged on the edge near disk. Open winding machine 10, the speed that unreels that the rolling speed of collection axle is synchronized with output shaft is to make elastomer 20 remain that the extensibility of setting is constant, elastomer 20 constantly moves to collecting axle from output shaft, cooperation by the first rotating part 111 and the second rotating part 112 is rotated wrapped carbon nano-tube fibre 30 in the surface of elastomer 20, form carbon nano-tube fibre fasciated yarn 40, carbon nano-tube fibre fasciated yarn 40 is collected axle coiling and collects. Here it should be noted that, the second rotating part 112 is not only followed the first rotating part 111 and is rotated, and also, around the axis rotation of himself, rotates wrapped carbon nano-tube fibre 30 in the surface of elastomer 20 by the cooperation of the second rotating part 112 and the first rotating part 111. Collect axle and the unwinding and rewinding action of output shaft and the rotation of taping head and drive by motor, be well known to those skilled in the art, do not repeat them here.
Preferably, the extensibility of elastomer 20 is 0-500%, the unwinding and rewinding speed of collecting axle and output shaft is identical, all be more than or equal to 10r/min, do not establish speed limit, the rotary speed minimum speed of the first rotating part 111 is 10r/min, does not establish speed limit, and the rotary speed of the second rotating part 112 changes with the variation of the rotary speed of the first rotating part 111. Regulate the screw pitch of carbon nano-tube fibre on elastomer (ginseng Fig. 3 a-3b) between 0.1mm ~ 2cm by extensibility, collection axle and the unwinding and rewinding speed of output shaft and the rotating speed of taping head that elastomer is set, can control integral, flexible and the electric conductivity of composite elastic conductive fiber by controlling the screw pitch of carbon nano-tube fibre 30 on elastomer 20.
S4,40 heat treatments of carbon nano-tube fibre fasciated yarn are obtained to elementary elastic conduction fiber. Heat treated temperature is 50 DEG C ~ 700 DEG C, and the time is 1min ~ 5h.
S5, adopt elastomeric polymer to encapsulate elementary elastic conduction fiber to obtain composite elastic conductive fiber. At surface impregnation or infiltration or spraying or spin coating one deck elastomeric polymer of elementary elastic conduction fiber, size, at micron or submicron order, is protected elementary elastic conduction fiber, thereby increases its electricity and serviceability. Preferably, elastomeric polymer is dimethyl silicone polymer or high resilience polyurethane. The thickness of elastomeric polymer encapsulation is generally at micron or the submicron order order of magnitude, and preferably, the thickness of elastomeric polymer encapsulation is less than 10 microns. Composite elastic conductive fiber is protected, thereby increased its electricity and serviceability.
The composite elastic conductive fiber of preparing by said method, there is higher elasticity (more than 300%), better electrical stability (resistance variations is little, and cycle-index is high), higher operability and durability, be convenient to carry out secondary operations, can carry out bending, operation such as compression torsion etc., also can carry out blending with other fiber, weave etc., water-fastness, acid-proof alkaline is better, recycle rate more high, be also convenient to carry out large-scale production from industrialization angle.
Correspondingly, a kind of composite elastic conductive fiber of being prepared by the preparation method in above-mentioned embodiment, comprise elastomer, carbon nano-tube fibre and elastomeric polymer, the wrapped surface in elastomer of carbon nano-tube fibre forms carbon nano-tube fibre fasciated yarn, and elastomeric polymer is coated on the surface of described carbon nano-tube fibre fasciated yarn. Preferably, elastomer is polyurethane elastomeric fiber or polyesters elastomer or complex polyester elastomer or polyolefin elastic fiber or polyester ether elastic fiber or textured yarn class elastomer etc., and carbon nano-tube fibre is 0.1mm ~ 2cm in the lip-deep screw pitch of elastomer. To be that dimethyl silicone polymer or high resilience polyurethane etc. are all kinds of have a flexible polymer to elastomeric polymer. Package dimension (package thickness) can determine as required, and general elastomeric polymer package thickness is less than 10 microns.
Ginseng Fig. 4, composite elastic conductive fiber is along with the increase resistance variations situation map of level of stretch, as seen from Figure 4, the level of stretch of composite elastic conductive fiber resistance change rate below 100% is about 10%, level of stretch resistance change rate below 300% is about 25%, when level of stretch exceedes 300%, resistance variations is larger, can develop this multiple composite elastic conductive fiber in the application aspect stretching sensing according to this performance.
Ginseng Fig. 5, composite elastic conductive fiber increases the situation of change figure of resistance with washing time and number of times, usability aspect is along with the increase for the treatment of time of water and number of times, the electric conductivity of fiber does not only decline lifting to a certain degree on the contrary, and this illustrates that this composite elastic conductive fiber has good usability; In addition composite elastic conductive fiber is twisted and untwisting, the variation of its resistance is also very little, only has several ohm, also illustrates that the electrical stability of this composite elastic conductive fiber is better.
In order better to set forth the present invention, below provide some composite elastic conductive fiber preparation methods' specific embodiment.
Embodiment 1
Draw elastomer from the output shaft of winding machine, tensile elasticity fiber is also fixed on its one end on the collection axle of winding machine, draw carbon nano-tube fibre from the taping head of winding machine, and one end of carbon nano-tube fibre and elastomer are positioned to the one end of collecting axle fix, the unwinding and rewinding speed that collection axle and output shaft are set is 400r/min, the coiling extensibility of elastomer is that 10%, the first rotating part rotating speed is 60r/min. Open winding machine, the first rotating part and the second rotating part coordinate rotation, regulate the rotary speed of the second rotating part and the rotary speed adaptation of the first rotating part. Elastomer constantly moves to collecting axle from output shaft, in the surface of elastomer, forms carbon nano-tube fibre fasciated yarn by wrapped carbon nano-tube fibre, and the screw pitch of its carbon nano-tube fibre on elastomer is 20mm. Carbon nano-tube fibre fasciated yarn is heat-treated, and heat treated temperature is 50 DEG C, and the time is 5h, makes carbon nano-tube fibre and elastomer be combined into entity, obtains elementary elastic conduction fiber. By surface spraying one deck elastomeric polymer of elementary elastic conduction fiber, package dimension is 5um, Zhongdao composite elastic conductive fiber.
Embodiment 2
Draw elastomer from the output shaft of winding machine, tensile elasticity fiber is also fixed on its one end on the collection axle of winding machine, draw carbon nano-tube fibre from the taping head of winding machine, and one end of carbon nano-tube fibre and elastomer are positioned to the one end of collecting axle fix, the unwinding and rewinding speed that collection axle and output shaft are set is 300r/min, the coiling extensibility of elastomer is that 250%, the first rotating part rotating speed is 120r/min. Open winding machine, the first rotating part and the second rotating part coordinate rotation, regulate the rotary speed of the second rotating part and the rotary speed adaptation of the first rotating part. Elastomer constantly moves to collecting axle from output shaft, in the surface of elastomer, forms carbon nano-tube fibre fasciated yarn by wrapped carbon nano-tube fibre, and the screw pitch of its carbon nano-tube fibre on elastomer is 10.23mm. Carbon nano-tube fibre fasciated yarn is heat-treated, and heat treated temperature is 150 DEG C, and the time is 1h, makes carbon nano-tube fibre and elastomer be combined into entity, obtains elementary elastic conduction fiber. The surface of elementary elastic conduction fiber is infiltrated to one deck elastomeric polymer, and package dimension is 5um, Zhongdao composite elastic conductive fiber.
Embodiment 3
Draw elastomer from the output shaft of winding machine, tensile elasticity fiber is also fixed on its one end on the collection axle of winding machine, draw carbon nano-tube fibre from the taping head of winding machine, and one end of carbon nano-tube fibre and elastomer are positioned to the one end of collecting axle fix, the unwinding and rewinding speed that collection axle and output shaft are set is 200r/min, the coiling extensibility of elastomer is that 500%, the first rotating part rotating speed is 90r/min. Open winding machine, the first rotating part and the second rotating part coordinate rotation, regulate the rotary speed of the second rotating part and the rotary speed adaptation of the first rotating part. Elastomer constantly moves to collecting axle from output shaft, in the surface of elastomer, forms carbon nano-tube fibre fasciated yarn by wrapped carbon nano-tube fibre, and the screw pitch of its carbon nano-tube fibre on elastomer is 0.1mm. Carbon nano-tube fibre fasciated yarn is heat-treated, and heat treated temperature is 700 DEG C, and the time is 1min, makes carbon nano-tube fibre and elastomer be combined into entity, obtains elementary elastic conduction fiber. By surperficial spin coating one deck elastomeric polymer of elementary elastic conduction fiber, package dimension is 5um, Zhongdao composite elastic conductive fiber.
Be to be understood that, although this description is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Listed a series of detailed description is above only illustrating for feasibility embodiment of the present invention; they are not in order to limit the scope of the invention, all do not depart from the equivalent embodiment that skill spirit of the present invention does or change and all should be included in protection scope of the present invention within.
Claims (10)
1. a composite elastic conductive fiber, it is characterized in that, comprise elastomer, carbon nano-tube fibre and elastomeric polymer, the wrapped surface in described elastomer of described carbon nano-tube fibre forms carbon nano-tube fibre fasciated yarn, and described elastomeric polymer is coated on the surface of described carbon nano-tube fibre fasciated yarn.
2. composite elastic conductive fiber according to claim 1, it is characterized in that, the screw pitch of described carbon nano-tube fibre on described elastomer is 0.1mm ~ 2cm, and described elastomer is polyurethane elastomeric fiber or polyesters elastomer or complex polyester elastomer or polyolefin elastic fiber or polyester ether elastic fiber or textured yarn class elastomer.
3. a preparation method for composite elastic conductive fiber as claimed in claim 1, is characterized in that, the method comprises the following steps:
S1, draw elastomer from the output shaft of winding machine, and its one end is fixed on the collection axle of winding machine;
S2, draw carbon nano-tube fibre from the taping head of winding machine, and one end of carbon nano-tube fibre and elastomer are positioned to the one end of collecting axle fix;
S3, unlatching winding machine, carbon nano-tube fibre is wrapped in the surface of elastomer, form carbon nano-tube fibre fasciated yarn, wherein, regulate the screw pitch of carbon nano-tube fibre on elastomer by extensibility, collection axle and the unwinding and rewinding speed of output shaft and the rotating speed of taping head that elastomer is set;
S4, the heat treatment of described carbon nano-tube fibre fasciated yarn is obtained to elementary elastic conduction fiber;
S5, adopt elastomeric polymer to encapsulate elementary elastic conduction fiber to obtain composite elastic conductive fiber.
4. the preparation method of composite elastic conductive fiber according to claim 3, it is characterized in that, described taping head is arranged between described output shaft and described collection axle, described taping head comprises the first rotating part and is located at the second rotating part on described the first rotating part, described the first rotating part and described the second rotating part are respectively around the axis rotation of himself, and described carbon nano-tube fibre is wrapped on described the second rotating part.
5. the preparation method of composite elastic conductive fiber according to claim 4, is characterized in that, described the first rotating part is discoid, which is provided with a through hole wearing for described elastomer, and the internal diameter of described through hole is greater than the diameter of described elastomer.
6. the preparation method of composite elastic conductive fiber according to claim 4, it is characterized in that, the extensibility of described elastomer is 0-500%, the unwinding and rewinding speed of described collection axle and output shaft is identical, all be more than or equal to 10r/min, the rotary speed of described the first rotating part is more than or equal to 10r/min.
7. the preparation method of composite elastic conductive fiber according to claim 4, is characterized in that, in described S2 step, " open winding machine, carbon nano-tube fibre is wrapped in the surface of elastomer, forms carbon nano-tube fibre fasciated yarn " is specially:
Open winding machine, the speed that unreels that the rolling speed of collection axle is synchronized with output shaft is to make elastomer remain that the extensibility of setting is constant, cooperation rotation by the first rotating part and the second rotating part in the surface of elastomer, forms carbon nano-tube fibre fasciated yarn by wrapped carbon nano-tube fibre.
8. the preparation method of composite elastic conductive fiber according to claim 3, is characterized in that, described heat treated temperature is 50 DEG C ~ 700 DEG C, and the time is 1min ~ 5h.
9. the preparation method of composite elastic conductive fiber according to claim 3, it is characterized in that, described " adopting elastomeric polymer to encapsulate elementary elastic conduction fiber " step is specially: by elastomeric polymer dipping or infiltrate or spraying or the surface that is spin-coated on described elementary elastic conduction fiber encapsulate.
10. the preparation method of composite elastic conductive fiber according to claim 3, it is characterized in that, described elastomeric polymer is dimethyl silicone polymer or high resilience polyurethane, and the screw pitch of described carbon nano-tube fibre on described elastomer is 0.1mm ~ 2cm.
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