CN112998334A - But continuation of journey GPS location intelligence clothing based on flexible conductive fiber - Google Patents
But continuation of journey GPS location intelligence clothing based on flexible conductive fiber Download PDFInfo
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- CN112998334A CN112998334A CN202110244639.4A CN202110244639A CN112998334A CN 112998334 A CN112998334 A CN 112998334A CN 202110244639 A CN202110244639 A CN 202110244639A CN 112998334 A CN112998334 A CN 112998334A
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/0012—Professional or protective garments with pockets for particular uses, e.g. game pockets or with holding means for tools or the like
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
- A41D27/20—Pockets; Making or setting-in pockets
- A41D27/205—Pockets adapted to receive a mobile phone or other electronic equipment
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- 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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
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- 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
- D01D5/06—Wet spinning methods
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- 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
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
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- 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
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- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
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- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/16—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds as constituent
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- Chemical & Material Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Multicomponent Fibers (AREA)
Abstract
The invention relates to the technical field of intelligent clothes, in particular to a cruising GPS positioning intelligent clothes based on flexible conductive fibers. The garment comprises a garment body, wherein a pocket is arranged on the surface of the garment body, a GPS positioning device, a small lithium battery and a dual-purpose battery switch are arranged in the pocket, a solar panel is arranged on the back of the garment body, and the solar panel is connected with the dual-purpose battery switch through a flexible stretchable wire; the flexible stretchable lead is obtained by weaving flexible stretchable conductive fibers and elastic terylene, the flexible stretchable conductive fibers are prepared by adopting coaxial wet spinning, the longitudinal section of the flexible stretchable conductive fibers comprises a core layer and a skin layer from inside to outside, the core layer is made of PEDOT (polyethylene glycol terephthalate)/PSNWs, and the skin layer is made of styrene thermoplastic elastomer. The invention can position and monitor the movement of the user, and can effectively prevent the user from being lost; energy conservation, consumption reduction and ultrasonic endurance can be realized; in addition, the lead is a flexible and stretchable lead, so that the wearing comfort is improved.
Description
Technical Field
The invention relates to the technical field of intelligent clothes, in particular to a cruising GPS positioning intelligent clothes based on flexible conductive fibers.
Background
Wearable devices are known, i.e. portable devices that are worn directly on the body or integrated into the clothing or accessories of the user. Wearable equipment is not only a hardware equipment, realizes powerful function through software support and data interaction, high in the clouds interaction more, and wearable equipment will bring very big transition to our life, perception.
After twenty-first century, the intelligentization penetrated the lives of the people, and wearable intelligent devices were more and more on the market, and the wearable intelligent devices were mainly designed for young people, but neglected the demand of the old population for the wearable intelligent devices. As is known, the occurrence of aging faces more problems, such as the need of the elderly to detect their own health conditions, the phenomenon of memory weakening in most of the elderly, and severe senile dementia, and frequent occurrence of events that the elderly are lost and forget to return to home.
Among the prior art, in order to monitor old person's whereabouts, implant location chips such as GPS, big dipper navigation in wearable fabrics such as bracelet, clothes to the realization is to the location and the tracking of lost old person, like patent CN 106723431A, a take old person's clothing of GPS location. However, there are also disadvantages that, if the tracking location is maintained, the smart wearable device needs to be continuously powered, and the battery with larger capacity is heavier, is not easy to carry and is also easy to cause danger, so the power supply battery also becomes an important problem for limiting the large-scale popularization of the locatable smart wearable device, and the solar battery is currently developing towards the direction of being thinner and lighter, and having higher photoelectric conversion rate and output power, and has the function of real-time charging. Secondly, when continuously supplying power for intelligent wearable equipment, need the wire to be connected wearable equipment with the power supply battery, and traditional wire is owing to all adopt copper, aluminium wire and add a layer insulating layer and constitute outside copper, aluminium wire, this type of wire is not wear-resisting, and the material is comparatively stiff, if adopt this wire, can lead to the people of dress uncomfortable, needs the wearability and the soft travelling comfort of further improvement wire.
For example, patent CN 108813744A discloses a wire system and its wiring method applied to wearable intelligent clothes, the intelligent clothes includes a clothes body, a power supply unit, a sensor element, a capacitor, a heating device unit and a display screen unit are arranged on the clothes body, the wire system includes a plurality of flexible conductive wire elements, one end of the flexible conductive wire element is connected with the power supply unit, the other end of the flexible conductive wire element is connected with a plurality of sensor elements, capacitor elements, heating device unit and display screen unit in a one-to-one correspondence, the scheme can realize the effective communication of intelligent equipment, high polymer sensor, metal sensor, high polymer super capacitor, heating device, super capacitor device, flexible display screen, friction self-generating polymer nano generator system and the like on the clothes, and is convenient for the designer to accurately arrange the wire to the required position, the conducting wires can be hidden or presented to form new design patterns and styles of shoes and clothes, so that the attractiveness of the clothes is improved, and the application market is expanded. The patent mainly prepares conductive fibers by wet spinning of conductive polymers such as Polyaniline (PANI), polypyrrole (PPY) and poly 3, 4-ethylenedioxythiophene (PEDOT), or prepares elastic conductive fibers by a method of coating the surface of rubber fibers, or modifies block copolymers by metal alloy, silver and carbon nanotubes, however, the preparation methods of the fibers can prepare certain flexible conductive fibers, but the requirement of keeping high conductivity under a high-drafting state is difficult to meet, and the equivalent series resistance of a fibrous supercapacitor is increased in a stretching process, so that the performance of the supercapacitor is deteriorated.
For another example, patent CN 109735953 a discloses a coaxial wet spinning technology for preparing TPE/PANI skin-core structure elastic conductive fiber and wearable stress sensing application, wherein the preparation method comprises wet spinning the skin-core of styrene, 2-methyl-1, 3-butadiene polymer (TPE) and Polyaniline (PANI) hydrogel dissolved in dichloromethane to prepare high elastic conductive fiber with skin of TPE and core of PANI structure. The TPE has good tensile property and is nontoxic; the PANI has excellent conductivity; and a large amount of PANI is adhered in the TPE tube, and a conductive path can be formed continuously through stretching and dislocation in the stretching process. Therefore, the wearable device can be used for well changing the bending of fingers; wrist rotation and elbow rotation bending responses.
Although PANI in the above patent is also electrically conductive, its conductivity is weaker compared to silver nanowires. As is well known, PEDOT PSS is an aqueous solution of a high molecular weight polymer, has high electrical conductivity and gels at room temperature. Metallic nanowires refer to the design of one or more metals configured into a nanowire configuration. The metal nanowires have the characteristics of low resistance and high electrochemical response efficiency and are applied to many fields. In the prior art, PEDOT, PSS or AgNWs and polymer materials are mostly selected for blending and spinning to achieve the conductivity, but the fiber prepared by the method has large resistance. In some cases, PEDOT, PSS or AgNWs are coated on the surface of the fiber to prepare the conductive composite fiber, but the surface of the fiber prepared by the method is easy to fall off due to abrasion, so that the conductive composite fiber is not beneficial to long-term use.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problem of providing the GPS positioning intelligent garment capable of realizing long-time endurance, and making up the defects that the conventional wearable device is large in size, short in endurance, wear-resistant and soft in conducting wire and comfortable to wear and is based on the flexible conductive fiber.
The technical scheme adopted by the invention for realizing the purpose is as follows: a GPS positioning intelligent garment capable of continuing voyage based on flexible conductive fibers comprises a garment body, wherein a pocket is arranged on the surface of the garment body, a GPS positioning device, a small lithium battery and a dual-purpose battery switch are placed in the pocket, a solar cell panel is arranged on the back of the garment body, and the solar cell panel is connected with the dual-purpose battery switch through a flexible stretchable wire; the flexible stretchable conducting wire is prepared from flexible stretchable conducting fibers and elastic terylene through a weaving technology, the flexible stretchable conducting fibers are prepared through coaxial wet spinning, the longitudinal section of each flexible stretchable conducting fiber comprises a core layer and a skin layer from inside to outside, the core layer is made of PEDOT (PolyEthyl Ether)/PSS/AgNWs, and the skin layer is made of a styrene thermoplastic elastomer.
According to the endurance GPS positioning intelligent garment based on the flexible conductive fibers, the volume ratio of PEDOT to PSS to AgNWs in the core layer is 7:3, 5:5 and 3: 7.
The preparation method of the flexible stretchable conductive fiber based GPS positioning intelligent garment comprises the following steps:
s1, material preparation: preparing a styrene thermoplastic elastomer dissolving solution as a skin layer spinning solution and ethanol as a core layer spinning solution for later use;
s2, preparing ethanol with the mass concentration of 95% as coagulating bath liquid;
s3, taking the skin layer spinning solution prepared in the step S1 as a skin layer and the core layer spinning solution as a core layer, controlling the skin layer spinning solution and the core layer spinning solution to be injected into the coagulating bath liquid prepared in the step S2 at different flow rate ratios by adopting a skin-core structure fiber spinning device, carrying out coaxial wet spinning to obtain skin-core structure fibers, and winding and collecting the prepared skin-core structure fibers;
s4, transferring the skin-core structure fiber prepared in the step S3 into deionized water for soaking for 1-3h, and then drying at 60 ℃ for 3-5h until the ethanol in the core layer is completely volatilized to prepare a hollow fiber;
s5, preparing a PEDOT/PSS/AgNWs mixed solution, mixing a PEDOT/PSS aqueous solution and AgNWs according to a certain volume ratio, stirring for 3-4h, and carrying out ultrasonic treatment for 25-35min to form a PEDOT/PSS/AgNWs mixed solution;
s6, injecting the PEDOT/PSS/AgNWs mixed solution prepared in the step S5 into the hollow fiber prepared in the step S4 to obtain a conductive fiber;
s7, applying prestress on the conductive fiber prepared in the step S6 to keep the strain of the conductive fiber at 750-850%, then placing the conductive fiber at room temperature for drying for 10-12h to gelatinize a PEDOT: PSS/AgNWs mixed solution, and withdrawing the prestress to obtain the stretchable conductive fiber.
In the above cruising GPS positioning intelligent garment based on flexible conductive fibers, in step S1, when preparing the skin layer spinning solution, the styrene thermoplastic elastomer is added to the tetrahydrofuran solution with a mass concentration of 70% to prepare the styrene thermoplastic elastomer.
In the step S3, the flow rate of the skin layer spinning solution is set to 6-10mm/min, the flow rate of the core layer spinning solution is set to 5-10mm/min, and the flow rate of the skin layer spinning solution is slightly faster than that of the core layer spinning solution.
In the above-mentioned cruising GPS positioning intelligent garment based on flexible conductive fibers, in step S3, when the skin-core structure fiber is wound and collected, the winding speed of the skin-core structure fiber is controlled to be 7 mm/min.
In step S3, the skin-core structure fiber spinning device includes a container for containing a coagulation bath solution, a front support roller, a rear support roller, and a winding device for winding prepared polyvinyl alcohol/silicone rubber fibers, and further includes two coaxial needles, where the two coaxial needles are connected to an injector through a hose, and one of the two injectors is used for injecting a skin layer spinning solution into the coagulation bath solution, and the other is used for injecting a core layer spinning solution.
The cruising GPS positioning intelligent clothes based on the flexible conductive fibers comprises a styrene-ethylene-butylene-styrene block copolymer.
According to the endurance GPS positioning intelligent garment based on the flexible conductive fibers, the GPS positioning module and the remote communication module are arranged in the GPS positioning device.
According to the cruising GPS positioning intelligent garment based on the flexible conductive fibers, the lithium battery is connected with the dual-purpose battery switch through the flexible stretchable lead, the GPS positioning device is powered by the lithium battery and the solar battery alternately, and the lithium battery and the solar battery panel are controlled by the dual-purpose battery switch.
The invention discloses a cruising GPS positioning intelligent garment based on flexible conductive fibers, which has the beneficial effects that: firstly, the invention adopts a mode of combining the lithium battery and the solar battery to realize the purpose of long-time endurance. And secondly, the flexible stretchable lead prepared by the preparation method is used for connecting the solar panel with the dual-purpose battery switch and connecting the lithium battery with the dual-purpose battery switch, and because the core layer of the conductive fiber is made of PEDOT (PSS)/AgNWs, the PEDOT/PSS can fix the silver nanowires in the fiber without losing too much of the conductive performance of the fiber, the conductive performance of the conductive fiber is greatly improved, so that the electric quantity service time of the solar panel and the lithium battery can be prolonged, and the endurance time is further prolonged. The invention can position and monitor the movement of the user, and can effectively prevent the user from being lost; meanwhile, the power supply is a solar battery and a lithium battery, so that energy conservation, consumption reduction and ultrasonic endurance can be realized; in addition, the lead is a flexible and stretchable lead, so that the lead is soft and close-fitting, and the wearing comfort of a user is improved.
A styrene thermoplastic elastomer solution is used as a cortex spinning solution and ethanol is used as a core layer spinning solution to spin a hollow fiber by a coaxial wet spinning technology, and then PEDOT (Poly ethylene glycol Ether) PSS/AgNWs materials are compounded and injected into the hollow fiber, and AgNWs silver nanowires are uniformly distributed in gel after the PEDOT (Poly ethylene glycol Ether) PSS is gelatinized, so that the AgNWs silver nanowires are firmly adhered to the inside of the fiber, the conductivity of the conductive fiber is improved and stabilized, the obtained conductive fiber is fatigue-resistant and not easy to damage, the silver nanowire conductive material is not easy to fall off, the conductivity is greatly improved, and the service life is prolonged. The preparation method of the conductive fiber is simple and economical, the fiber spinnability is good, and the aperture size and the wall thickness of the formed conductive fiber inside and outside the fiber are adjustable. The invention can realize continuous and industrialized production, effectively improves the fiber uniformity, has stable production process, high production efficiency, simple preparation flow and low cost, and is worthy of wide popularization and application.
Drawings
FIG. 1 is a schematic front view of a positioning intelligent garment according to embodiment 1;
FIG. 2 is a schematic diagram of the back structure of the positioning smart garment in embodiment 1;
FIG. 3 is a schematic cross-sectional view of an SEBS/PEDOT/PSS/AgNWs flexible stretchable conductive fiber prepared in example 1;
FIG. 4 is a schematic structural view of a skin-core structure fiber spinning device;
FIG. 5 is a schematic view of the injection of a mixed solution of PEDOT PSS/AgNWs into a hollow fiber;
fig. 6 is a schematic view of a braided structure of the flexible stretchable wire according to example 1.
In the figure: the garment comprises a garment body (1), a pocket (2), a GPS positioning device (3), a lithium battery (4), a dual-purpose battery switch (5), a solar cell panel (6), a flexible stretchable wire (7), a core layer (8), a skin layer (9), a container (10), a front support roller (11), a rear support roller (12), a winding device (13), a coaxial needle (14), a hose (15), an injector (16), a skin layer spinning solution (17), a core layer spinning solution (18), a coagulation bath solution (19), a hollow fiber (20) and a PEDOT (PSS/AgNWs mixed solution (21).
Detailed Description
The invention is further explained in detail with reference to the drawings and the specific embodiments;
example 1
As shown in figures 1, 2, 3,4, 5 and 6, the GPS positioning intelligent garment capable of continuing the voyage based on the flexible conductive fibers comprises a garment body 1, a pocket 2 is arranged on the surface of the garment body 1, a GPS positioning device 3 is placed in the pocket 2, a small lithium battery 4 and a dual-purpose battery switch 5 are arranged on the back of the garment body 1, a solar cell panel 6 is arranged on the back of the garment body 1, the solar cell panel 6 is connected with the dual-purpose battery switch 5 through a flexible stretchable lead 7, the flexible stretchable lead 7 is soft and close to the skin, and the comfortable sensation of wearing of a user can be increased. Wherein, a GPS positioning module and a remote communication module are arranged in the GPS positioning device 3. Lithium cell 4 links to each other with dual-purpose battery switch through flexible tensile wire, and GPS positioner 3 is supplied power by lithium cell and solar cell in turn, and lithium cell 4 and solar cell panel 6 are by dual-purpose battery switch control.
In the embodiment, the GPS positioning device has small volume and the size is 2.5 multiplied by 1.5 multiplied by 0.3 cm. The magic tape is arranged above the pocket 2, so that the components in the pocket 2 can be prevented from falling off. The power adopts solar cell panel and lithium cell, and energy-conserving subtracts consumption, supersound continuation of the journey dual-purpose wherein, dual-purpose battery switch 5 is controlling positioner 3's power supply, and when solar cell panel 6 did not have the electricity, changeable lithium cell 4 that supplies power, consequently can realize long-time continuation of the journey. The GPS positioning device 3 comprises a GPS positioning module and a remote communication module, and can send signals to the mobile phone after the SIM card is inserted. When the family wants to know the position of the user, the mobile phone can be directly opened for observation, and the family can conveniently monitor and position.
The flexible stretchable lead 7 in the embodiment is prepared from flexible stretchable conductive fibers and elastic terylene through a weaving technology, the flexible stretchable conductive fibers are prepared through coaxial wet spinning, the longitudinal section of each flexible stretchable conductive fiber comprises a core layer 8 and a skin layer 9 from inside to outside, the core layer 8 is made of PEDOT (PSS/AgNWs), and the skin layer 9 is made of a styrene thermoplastic elastomer. The prepared stretchable conductive fiber has the strain force of 25.05-39.05MPa, the strain rate of 1270.54-1510.54% and the resistivity of 35.49-40.49S/cm. Wherein the volume ratio of PEDOT to PSS to AgNWs in the core layer 8 is 7: 3.
And the mass ratio of PEDOT to PSS is 1: 2.5, the solid content is 20 mg/L.
The preparation method of the flexible stretchable conductive fiber in the embodiment comprises the following steps:
s1, material preparation: preparing a styrene-ethylene-butylene-styrene segmented copolymer dissolving solution as a skin layer spinning solution 17 and ethanol as a core layer spinning solution 18 for later use; when preparing the sheath spinning solution, adding the styrene-ethylene-butylene-styrene block copolymer into a tetrahydrofuran solution with the mass concentration of 70% for preparation.
S2, preparing ethanol with the mass concentration of 95% as coagulating bath liquid;
s3, taking the skin layer spinning solution prepared in the step S1 as a skin layer and the core layer spinning solution as a core layer, controlling the skin layer spinning solution and the core layer spinning solution to be injected into the coagulating bath liquid prepared in the step S2 at different flow rate ratios by adopting a skin-core structure fiber spinning device, carrying out coaxial wet spinning to obtain skin-core structure fibers, and winding and collecting the prepared skin-core structure fibers; the flow rate of the skin layer spinning solution is set to be 8mm/min, the flow rate of the core layer spinning solution is set to be 5mm/min, the flow rate of the skin layer spinning solution is slightly higher than that of the core layer spinning solution, and the winding speed of the skin-core structure fiber is controlled to be 7 mm/min.
S4, transferring the skin-core structure fiber prepared in the step S3 into deionized water to be soaked for 1h, and then drying the skin-core structure fiber at the temperature of 60 ℃ for 3h until the ethanol in the core layer is completely volatilized to prepare a hollow fiber 20; preparing to obtain a hollow fiber, wherein the outer diameter of the hollow fiber is 2.2mm, and the inner diameter of the hollow fiber is 1.7 mm;
s5, preparing a PEDOT/PSS/AgNWs mixed solution, mixing a PEDOT/PSS aqueous solution and AgNWs according to a certain volume ratio, stirring for 3h, and carrying out ultrasonic treatment for 25min to form the PEDOT/PSS/AgNWs mixed solution;
s6, injecting the PEDOT/PSS/AgNWs mixed solution prepared in the step S5 into the hollow fiber prepared in the step S4 to obtain a conductive fiber; PEDOT, PSS/AgNWs mixed solution 21 is injected into the hollow fiber 20 by an injector;
s7, applying prestress on the conductive fiber prepared in the step S6 to keep the strain of the conductive fiber at 810%, then placing the conductive fiber at room temperature for drying for 10 hours to gelatinize a PEDOT: PSS/AgNWs mixed solution, and withdrawing the prestress to obtain the stretchable conductive fiber.
In step S3, the skin-core structure fiber spinning apparatus includes a container 10 for containing a coagulation bath solution, a front support roller 11, a rear support roller 12, and a winding device 13 for winding the prepared polyvinyl alcohol/silicone rubber fiber, and further includes two coaxial needles 14, the coaxial needles 14 are connected to an injector 16 through a hose 15, and the injectors 16 are provided in two, one is used for injecting a skin layer spinning solution into the coagulation bath solution 19, and the other is used for injecting a core layer spinning solution. The flexible stretchable wire 7 is an elastic braided wire.
According to the invention, the hollow fiber is spun through coaxial wet spinning, and then the composite conductive material is injected into the fiber, so that the core layer material is PEDOT/PSS conductive polymer hydrogel and silver nanowires, the silver nanowires belong to the best metal and have the best conductivity, but easily fall off on the inner surface of the fiber, and the PEDOT/PSS can fix the silver nanowires in the fiber without losing too much conductivity, so that the conductivity of the conductive fiber is greatly improved. The core layer and the skin layer are made of flexible and stretchable materials, so that the core layer and the skin layer are fatigue-resistant and not easy to damage, and the conductive materials are not easy to drop, so that the good conductivity is ensured. Specifically, AgNWs is mixed with PEDOT: PSS, and after the PEDOT: PSS is gelatinized, the AgNWs are distributed in the gel, so that the AgNWs are firmly adhered to the inside of the fiber, and the conductivity of the fiber is improved and stabilized. The manufacturing method is simple and economical, the spinnability is good, and the aperture size and the wall thickness of the formed fiber inside and outside the fiber are adjustable.
Example 2
The same parts as those in embodiment 1 will not be described again, except that: the volume ratio of PEDOT to PSS to AgNWs of the core layer 8 in the flexible stretchable wire 7 in this embodiment is 5: 5.
The preparation method of the flexible stretchable conductive fiber in the embodiment comprises the following steps:
s1, material preparation: preparing a styrene-ethylene-butylene-styrene segmented copolymer dissolving solution as a skin layer spinning solution and ethanol as a core layer spinning solution for later use; when preparing the sheath spinning solution, adding the styrene-ethylene-butylene-styrene block copolymer into a tetrahydrofuran solution with the mass concentration of 70% for preparation.
S2, preparing ethanol with the mass concentration of 95% as coagulating bath liquid;
s3, taking the skin layer spinning solution prepared in the step S1 as a skin layer and the core layer spinning solution as a core layer, controlling the skin layer spinning solution and the core layer spinning solution to be injected into the coagulating bath liquid prepared in the step S2 at different flow rate ratios by adopting a skin-core structure fiber spinning device, carrying out coaxial wet spinning to obtain skin-core structure fibers, and winding and collecting the prepared skin-core structure fibers; the flow rate of the skin layer spinning solution is set to be 9mm/min, the flow rate of the core layer spinning solution is set to be 6mm/min, the flow rate of the skin layer spinning solution is slightly higher than that of the core layer spinning solution, and the winding speed of the skin-core structure fiber is controlled to be 7 mm/min.
S4, transferring the skin-core structure fiber prepared in the step S3 into deionized water to be soaked for 2 hours, and then drying at the temperature of 60 ℃ for 4 hours until the ethanol in the core layer is completely volatilized to prepare a hollow fiber;
s5, preparing a PEDOT/PSS/AgNWs mixed solution, mixing a PEDOT/PSS aqueous solution and AgNWs according to a certain volume ratio, stirring for 4h, and carrying out ultrasonic treatment for 30min to form the PEDOT/PSS/AgNWs mixed solution;
s6, injecting the PEDOT/PSS/AgNWs mixed solution prepared in the step S5 into the hollow fiber prepared in the step S4 to obtain a conductive fiber; injecting a mixed solution of PEDOT, PSS/AgNWs into the hollow fiber by using an injector;
s7, applying prestress to the conductive fiber prepared in the step S6 to keep the strain of the conductive fiber at 800%, then placing the conductive fiber at room temperature for drying for 11 hours to gelatinize a PEDOT: PSS/AgNWs mixed solution, and withdrawing the prestress to obtain the stretchable conductive fiber.
In the prior art, most of PEDOT, PSS or AgNWs and polymer materials are blended and spun to achieve conductivity, but the fiber resistance is large; in some parts, PEDOT, PSS or AgNWs are coated on the surface of the fiber to prepare the conductive composite fiber, but the surface is easy to fall off due to abrasion. According to the invention, the hollow fiber is spun through coaxial wet spinning, and then two composite conductive materials are injected into the fiber, wherein the selected materials are flexible stretchable materials, so that the fiber is fatigue-resistant and not easy to damage, the conductive materials are not easy to fall off, and the good conductivity is ensured. The method is simple and economical, the spinnability is good, and the aperture size and the wall thickness of the formed fiber inside and outside the fiber are adjustable.
Example 3
The same parts as those of the embodiments 1 and 2 are not described again, but the differences are as follows: the volume ratio of PEDOT to PSS to AgNWs of the core layer 8 in the flexible stretchable wire 7 in this embodiment is 3: 7.
The preparation method of the flexible stretchable conductive fiber in the embodiment comprises the following steps:
s1, material preparation: preparing a styrene-ethylene-butylene-styrene segmented copolymer dissolving solution as a skin layer spinning solution and ethanol as a core layer spinning solution for later use; when preparing the sheath spinning solution, adding the styrene-ethylene-butylene-styrene block copolymer into a tetrahydrofuran solution with the mass concentration of 70% for preparation.
S2, preparing ethanol with the mass concentration of 95% as coagulating bath liquid;
s3, taking the skin layer spinning solution prepared in the step S1 as a skin layer and the core layer spinning solution as a core layer, controlling the skin layer spinning solution and the core layer spinning solution to be injected into the coagulating bath liquid prepared in the step S2 at different flow rate ratios by adopting a skin-core structure fiber spinning device, carrying out coaxial wet spinning to obtain skin-core structure fibers, and winding and collecting the prepared skin-core structure fibers; the flow rate of the skin layer spinning solution is set to be 10mm/min, the flow rate of the core layer spinning solution is set to be 9mm/min, the flow rate of the skin layer spinning solution is slightly higher than that of the core layer spinning solution, and the winding speed of the skin-core structure fiber is controlled to be 7 mm/min.
S4, transferring the skin-core structure fiber prepared in the step S3 into deionized water to be soaked for 2 hours, and then drying at the temperature of 60 ℃ for 4 hours until the ethanol in the core layer is completely volatilized to prepare a hollow fiber;
s5, preparing a PEDOT/PSS/AgNWs mixed solution, mixing a PEDOT/PSS aqueous solution and AgNWs according to a certain volume ratio, stirring for 4h, and carrying out ultrasonic treatment for 30min to form the PEDOT/PSS/AgNWs mixed solution;
s6, injecting the PEDOT/PSS/AgNWs mixed solution prepared in the step S5 into the hollow fiber prepared in the step S4 to obtain a conductive fiber; injecting a mixed solution of PEDOT, PSS/AgNWs into the hollow fiber by using an injector;
s7, applying prestress to the conductive fiber prepared in the step S6 to keep the strain of the conductive fiber at 800%, then placing the conductive fiber at room temperature for drying for 12 hours to gelatinize a PEDOT: PSS/AgNWs mixed solution, and withdrawing the prestress to obtain the stretchable conductive fiber.
The preparation method of the conductive fiber abandons the traditional preparation method, namely a mode of preparing the stretchable conductive fiber by coating PEDOT, PSS or AgNWs and polymer materials through blending spinning or PEDOT, PSS or AgNWs on the surface of the fiber. The novel idea of preparing the conductive fiber internally loaded with PEDOT, PSS/AgNWs by adopting a coaxial wet spinning technology is that the conductive fiber with a sheath-core structure is prepared by taking the PEDOT, PSS/AgNWs as a core layer and taking a styrene-ethylene-butylene-styrene block copolymer as a sheath layer, and the conductive fiber has good tensile property, is fatigue-resistant and not easy to damage, is not easy to fall off and ensures good conductive performance.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made according to the spirit of the present disclosure should be covered within the scope of the present disclosure.
Claims (10)
1. The utility model provides a but continuation of journey GPS location intelligence clothing based on flexible conductive fiber, the clothing includes the clothing body, its characterized in that: the garment comprises a garment body and is characterized in that a pocket is arranged on the surface of the garment body, a GPS positioning device, a small lithium battery and a dual-purpose battery switch are arranged in the pocket, a solar panel is arranged on the back of the garment body, and the solar panel is connected with the dual-purpose battery switch through a flexible stretchable wire; the flexible stretchable conducting wire is prepared from flexible stretchable conducting fibers and elastic terylene through a weaving technology, the flexible stretchable conducting fibers are prepared through coaxial wet spinning, the longitudinal section of each flexible stretchable conducting fiber comprises a core layer and a skin layer from inside to outside, the core layer is made of PEDOT (PolyEthyl Ether)/PSS/AgNWs, and the skin layer is made of a styrene thermoplastic elastomer.
2. The flexible conductive fiber-based navigable GPS location smart garment of claim 1, wherein: the volume ratio of PEDOT to PSS to AgNWs in the core layer is 7:3, 5:5 and 3: 7.
3. The flexible conductive fiber-based navigable GPS positioning smart garment of claim 1, wherein the preparation method of the flexible stretchable conductive fiber comprises the following steps:
s1, material preparation: preparing a styrene thermoplastic elastomer dissolving solution as a skin layer spinning solution and ethanol as a core layer spinning solution for later use;
s2, preparing ethanol with the mass concentration of 95% as coagulating bath liquid;
s3, taking the skin layer spinning solution prepared in the step S1 as a skin layer and the core layer spinning solution as a core layer, controlling the skin layer spinning solution and the core layer spinning solution to be injected into the coagulating bath liquid prepared in the step S2 at different flow rate ratios by adopting a skin-core structure fiber spinning device, carrying out coaxial wet spinning to obtain skin-core structure fibers, and winding and collecting the prepared skin-core structure fibers;
s4, transferring the skin-core structure fiber prepared in the step S3 into deionized water for soaking for 1-3h, and then drying at 60 ℃ for 3-5h until the ethanol in the core layer is completely volatilized to prepare a hollow fiber;
s5, preparing a PEDOT/PSS/AgNWs mixed solution, mixing a PEDOT/PSS aqueous solution and AgNWs according to a certain volume ratio, stirring for 3-4h, and carrying out ultrasonic treatment for 25-35min to form a PEDOT/PSS/AgNWs mixed solution;
s6, injecting the PEDOT/PSS/AgNWs mixed solution prepared in the step S5 into the hollow fiber prepared in the step S4 to obtain a conductive fiber;
s7, applying prestress on the conductive fiber prepared in the step S6 to keep the strain of the conductive fiber at 750-850%, then placing the conductive fiber at room temperature for drying for 10-12h to gelatinize a PEDOT: PSS/AgNWs mixed solution, and withdrawing the prestress to obtain the stretchable conductive fiber.
4. The flexible conductive fiber-based navigable GPS positioning smart garment of claim 3, wherein: in the step S1, when preparing the skin layer spinning solution, the styrene-based thermoplastic elastomer is added to a tetrahydrofuran solution having a mass concentration of 70% to prepare the skin layer spinning solution.
5. The flexible conductive fiber-based navigable GPS positioning smart garment of claim 3, wherein: in the step S3, the flow rate of the skin layer spinning solution is set to 6 to 10mm/min, the flow rate of the core layer spinning solution is set to 5 to 10mm/min, and the flow rate of the skin layer spinning solution is slightly faster than the flow rate of the core layer spinning solution.
6. The flexible conductive fiber-based navigable GPS positioning smart garment of claim 3, wherein: in the step S3, the winding speed of the sheath-core structure fiber is controlled to be 7mm/min when the sheath-core structure fiber is wound and collected.
7. The flexible conductive fiber-based navigable GPS positioning smart garment of claim 3, wherein: in step S3, the skin-core structure fiber spinning device includes a container for containing a coagulation bath solution, a front support roller, a rear support roller, and a winding device for winding the prepared polyvinyl alcohol/silicone rubber fiber, and further includes two coaxial needles, one of the two coaxial needles is used for injecting the skin layer spinning solution into the coagulation bath solution, and the other is used for injecting the core layer spinning solution.
8. The flexible conductive fiber-based navigable GPS positioning smart garment of claim 3, wherein: the styrenic thermoplastic elastomer comprises a styrene-ethylene-butylene-styrene block copolymer.
9. The flexible conductive fiber-based navigable GPS location smart garment of claim 1, wherein: and a GPS positioning module and a remote communication module are arranged in the GPS positioning device.
10. The flexible conductive fiber-based navigable GPS location smart garment of claim 1, wherein: the GPS positioning device is powered by a lithium battery and a solar battery alternately, and the lithium battery and the solar battery panel are controlled by a dual-purpose battery switch.
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