CN108411614A - A kind of flexible multi-functional sensing fiber and preparation method thereof based on zinc oxide/nano silver wire hybridization network - Google Patents
A kind of flexible multi-functional sensing fiber and preparation method thereof based on zinc oxide/nano silver wire hybridization network Download PDFInfo
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 title claims abstract description 151
- 239000011787 zinc oxide Substances 0.000 title claims abstract description 62
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000000835 fiber Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- 238000009396 hybridization Methods 0.000 title claims abstract description 26
- 229920000742 Cotton Polymers 0.000 claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 239000002105 nanoparticle Substances 0.000 claims abstract description 29
- 238000005253 cladding Methods 0.000 claims abstract description 26
- 239000000701 coagulant Substances 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 239000006185 dispersion Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims abstract description 7
- 239000002243 precursor Substances 0.000 claims abstract description 7
- 238000007598 dipping method Methods 0.000 claims abstract description 6
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 46
- 230000035945 sensitivity Effects 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 235000019441 ethanol Nutrition 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 10
- 239000004246 zinc acetate Substances 0.000 claims description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 8
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 238000007605 air drying Methods 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 150000003751 zinc Chemical class 0.000 claims description 4
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- 239000007791 liquid phase Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 239000011667 zinc carbonate Substances 0.000 claims description 2
- 235000004416 zinc carbonate Nutrition 0.000 claims description 2
- 229910000010 zinc carbonate Inorganic materials 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 230000036541 health Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000004043 responsiveness Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 18
- 235000011121 sodium hydroxide Nutrition 0.000 description 17
- 235000013339 cereals Nutrition 0.000 description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 description 8
- 239000011701 zinc Substances 0.000 description 8
- 239000011540 sensing material Substances 0.000 description 7
- 241000209094 Oryza Species 0.000 description 5
- 235000007164 Oryza sativa Nutrition 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 235000009566 rice Nutrition 0.000 description 5
- 229910002651 NO3 Inorganic materials 0.000 description 4
- 125000005909 ethyl alcohol group Chemical group 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 4
- 238000000643 oven drying Methods 0.000 description 4
- -1 polytetrafluoroethylene Polymers 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- BEAZKUGSCHFXIQ-UHFFFAOYSA-L zinc;diacetate;dihydrate Chemical class O.O.[Zn+2].CC([O-])=O.CC([O-])=O BEAZKUGSCHFXIQ-UHFFFAOYSA-L 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002070 nanowire Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 241000124008 Mammalia Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
-
- D—TEXTILES; PAPER
- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/16—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
-
- D—TEXTILES; PAPER
- 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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
The invention discloses a kind of flexible multi-functional sensing fiber and preparation method thereof based on zinc oxide/nano silver wire hybridization network.Cotton fiber is impregnated in Zinc oxide nanoparticle coagulant liquid by the preparation method, takes out, is dry, obtaining the cotton fiber of Zinc oxide nanoparticle cladding；The cotton fiber that obtained Zinc oxide nanoparticle coats is placed in zinc oxide reaction precursor liquid again, after hydro-thermal reaction, is taken out, washing, drying obtain the cotton fiber of zinc oxide nanowire cladding；Finally the cotton fiber that obtained zinc oxide nanowire coats is impregnated in nano silver wire dispersion liquid, dipping absorption nano silver wire takes out, is dry, obtaining the flexible multi-functional sensing fiber based on zinc oxide/nano silver wire hybridization network.The flexible multi-functional sensing fiber of the present invention all has high responsiveness to ambient pressure, humidity and temperature, has important utilization foreground in fields such as flexible wearable equipment, apery body electronic skin, intelligent robot, Internet of Things and health monitorings.
Description
Technical field
The present invention relates to resistance sensing material fields, and in particular to a kind of more sensing capabilities flexible sensing materials and its preparation
Method.
Background technology
Flexible resistor sensing material is a kind of for perceiving resistance changed one when material is stimulated by external factor
Class flexible conductive composite material can be divided into strain, chemistry and bio-flexible resistance sensing material according to the type of external factor.
These flexible resistor sensing materials have highly important application prospect, especially measuring of human health, humanoid robot, Internet of Things
Net and wearable device etc..
Bionics is the major design method of flexible resistor sensing material, that is, imitates the human skin of the mammals such as the mankind
What the Functional Design of (strain sensing, temperature sensing etc.), artificial organs (" electronic nose " gas sensing, " electronic tongues " taste sensing) went out
A kind of composite material, preparation method usually pass through in conjunction with macromolecule matrix flexible (elastomer) and conductive filler various multiple
Conjunction method is prepared, and due to its potential application prospect, various flexible resistor materials become Current electronic material
Research hotspot.
However, single sensing capabilities can only all be detected by being at present sensor in the most of flexible resistor ground, such as strain
Sensor, temperature sensor, humidity sensor, gas sensor etc., the sensor of these single sensing capabilities is in complexity
Different stimulus is detected under environmental stimulation, various sensor integrations can only be got up by the method for integrated circuit,
Although the detection in complex stimulus source may be implemented, in becoming for wearable device, the micromation of higher-level robot and implantable
It is this that demand obviously can no longer meet by integrated method under gesture, therefore prepare a kind of while there is multifunctional sensing energy
Sensing material that is enough while detecting a variety of stimulus is of great practical significance and application prospect.
Invention content
The present invention is directed to be directed to the problem of current flexible resistor sensor can only detect single stimulus, a kind of base is provided
It is specially a kind of to be based on zinc oxide/nano silver wire in metal and the flexible multi-functional sensing fiber of semiconductor double nano gauze network
The flexible multi-functional sensing fiber of hybridization network；The flexible multi-functional sensing fiber using Nano semiconductor multi-functional characteristic and
The synergistic effect of metal nanometer line has high sensitivity to temperature, pressure and humidity, and pressure can be detected simultaneously by being conducive to prepare
The Multifunction Sensor of power, temperature and humidity, to solve the problems, such as that current flexible resistor sensor can only detect single stimulus
Provide new approaches.
The present invention also aims to provide a kind of more work(of flexibility based on zinc oxide/nano silver wire hybridization network
The preparation method of energy sensing fiber.
The purpose of the present invention is achieved through the following technical solutions.
A kind of preparation method of the flexible multi-functional sensing fiber based on zinc oxide/nano silver wire hybridization network, including with
Lower step：
(1) cotton fiber is impregnated in Zinc oxide nanoparticle coagulant liquid, takes out, is dry, obtains Zinc oxide nanoparticle
The cotton fiber of cladding；
(2) cotton fiber for the Zinc oxide nanoparticle cladding that step (1) obtains is placed in zinc oxide reaction precursor liquid, is passed through
It after hydro-thermal reaction, takes out, washing, drying obtain the cotton fiber of zinc oxide nanowire cladding；
(3) cotton fiber for the zinc oxide nanowire cladding that step (2) obtains is impregnated in nano silver wire dispersion liquid, is impregnated
It adsorbs nano silver wire, takes out, is dry, obtaining the cotton fiber of coating zinc oxide/nano silver wire double nano line hybridization network, i.e., it is described
Flexible multi-functional sensing fiber based on zinc oxide/nano silver wire hybridization network.
Further, in step (1), the cotton fiber is nonwoven cotton fiber, and single fiber shape is circle, diameter of section
It is 10 μm -30 μm.
Further, in step (1), the Zinc oxide nanoparticle coagulant liquid is to be prepared using sol-gal process,
The grain size of zinc oxide crystal seed nano particle in coagulant liquid is 30-60nm.
Further, in step (1), the liquid phase of the coagulant liquid is any one in ethyl alcohol, water and isopropanol.
Further, in step (1), a concentration of 5-7mg/mL of the coagulant liquid.
Further, in step (1), the time of the dipping is 1-5 minutes, preferably 3 minutes.
Further, in step (1), the drying is in 120 DEG C of forced air drying 1h.
Further, the operation circulation of step (1) is twice.
Further, in step (2), the zinc oxide reaction precursor liquid is the aqueous solution of equimolar zinc salt and alkali.
Further, in step (2), the zinc salt includes any one in zinc nitrate, zinc acetate and zinc carbonate.
Further, in step (2), the alkali includes appointing in sodium hydroxide, potassium hydroxide and hexa
Meaning is a kind of.
Further, in step (2), a concentration of 0.1mmol/mL of the zinc oxide reaction precursor liquid.
Further, in step (2), the temperature of the hydro-thermal reaction is 90-135 DEG C, preferably 95 DEG C, the time of reaction
For 1-24h, preferably 12h.
Further, in step (2), the washing is to be washed 3 times with absolute ethyl alcohol and deionized water successively.
Further, in step (2), the drying is in 60 DEG C of dry 1h.
Further, in step (2), after hydro-thermal reaction, the zinc oxide nanowire being coated on cotton fiber is in hexagonal prism
Body structure, draw ratio 10-20, a diameter of 80-100nm, length is 1-2 μm.
Further, in step (3), a concentration of of the nano silver wire dispersion liquid is 1-10mg/mL, preferably 2-5mg/
mL。
Further, in step (3), the solvent of the nano silver wire dispersion liquid includes any one in ethyl alcohol and isopropanol
Kind.
Further, in step (3), the time of the dipping absorption is 1-5 minutes, preferably 1 minute.
Further, in step (3), the drying is preferably done in 60 DEG C of air blast in 60-80 DEG C of forced air drying 0.5-2h
Dry 1h.
Further, the operation circulation of step (3) 2-8 times, preferably 3-6 times.
A kind of flexibility based on zinc oxide/nano silver wire hybridization network made from the preparation method described in any of the above-described is more
Function sensing fiber, the flexible multi-functional sensing fiber have bending, and pressure sensing sensitivity is up to 3.3kPa-1, humidity
Sensing sensitivity is up to 10.5%RH-1, temperature sensing sensitivity is up to 32.6% DEG C-1, the sensitivity in different stimulated source is logical
The ratio for overregulating zinc oxide nanowire and nano silver wire is regulated and controled.
Compared with prior art, the present invention has the advantage that and technique effect：
(1) present invention passes through the structure of different materials nano wire contract network and the phase mutual connection of different materials nano wire
It touches, imparts to systemic effect more sensing characteristics that the flexible resistor sensing fiber includes pressure, temperature and humidity；
(2) flexible resistor sensing fiber of the invention has more sensing characteristics, by regulating and controlling zinc oxide nanowire and Yin Na
The ratio of rice noodles can regulate and control the sensitivity of different sensings, to meet the different demands using situation；
(3) flexible resistor sensing fiber of the invention is by regulating and controlling the ratio of zinc oxide nanowire and nano silver wire, can be with
The resistance for regulating and controlling fiber, realizes that the resistance of fiber beats up the regulation and control to tens megaohms from several, meets under different driving voltage conditions
Use scene；
(4) flexible multi-functional sensing fiber of the invention all has high responsiveness to ambient pressure, humidity and temperature,
The fields such as flexible wearable equipment, apery body electronic skin, intelligent robot, Internet of Things and health monitoring have important fortune
Use foreground.
Specific implementation mode
Technical solution of the present invention is described in further detail with reference to embodiments, but embodiments of the present invention are not
It is limited to this.
The sensitivity of fibre pres sensing is by formula (Δ R/R0)/Δ F is calculated；The sensitivity of temperature sensing is by formula
(ΔR/R0)/Δ F is calculated；The sensitivity of humidity sensor is by formula (Δ R/R0)/Δ RH is calculated；Wherein, Δ R, Δ F,
Δ T, Δ RH are respectively corresponding resistance, external force, temperature and relative humidity variations, R0For the initial resistance of material.
In specific embodiment, for the cotton fiber used for nonwoven cotton fiber, single fiber shape is circle, diameter of section 10
μm-30μm。
Embodiment 1
The preparation of flexible multi-functional sensing fiber based on zinc oxide/nano silver wire hybridization network, includes the following steps：
(1) respectively by 0.219g zinc acetate dihydrates (Zn (CH3COO)2·2H2O it) is added with 0.12g sodium hydroxides (NaOH)
Into 50mL absolute ethyl alcohols, zinc acetate solution and NaOH solution are respectively obtained；65 DEG C of oil bath heating zinc acetate solution 10min, will
NaOH solution is added dropwise to wherein dropwise, is continued to be kept stirring 10min, is cooled to room temperature, and Zinc oxide nanoparticle coagulant liquid is obtained,
The grain size of zinc oxide crystal seed nano particle therein is 30-60nm；
Cotton fiber was impregnated in Zinc oxide nanoparticle coagulant liquid after 5 minutes to take out cotton fiber, is put into 120 DEG C
Dry 1h in air dry oven；Cycle twice, obtains the cotton fiber of Zinc oxide nanoparticle cladding；
(2) by 1.485g zinc nitrates (Zn (NO3)2·6H2) and 0.7g hexas (C O6H12N4) be added 100mL go
Wiring solution-forming in ionized water, then it is transferred to the polytetrafluoroethylene (PTFE) of 150mL from autoclave, the zinc oxide nano that step (1) is obtained
Vertically merging wherein, is sealed in 100 DEG C and reacts 16h the cotton fiber of rice grain cladding, after reaction, utilizes anhydrous second successively
Alcohol and deionized water are cleaned 3 times, and dry 1h, obtains the cotton fiber of zinc oxide nanowire cladding, wherein coating in 60 DEG C of baking ovens
Zinc oxide nanowire on cotton fiber is in hexagonal prism body structure, draw ratio 10-20, a diameter of 80-100nm, length 1-2
μm；
(3) cotton fiber for the zinc oxide nanowire cladding that step (2) obtains is impregnated to 2mg/mL nano silver wire dispersion liquids
In, wherein nano silver wire is prepared by polyxol method, draw ratio 300；After five minutes, the cotton fiber of nano silver wire will be adsorbed
It takes out, is put into 60 DEG C of oven drying 2h；Circulation absorption 3 times obtains the flexible multi-functional sensing based on double nano line hybridization network
Fiber, i.e., the described flexible multi-functional sensing fiber based on zinc oxide/nano silver wire hybridization network.
In the flexible multi-functional sensing fiber of preparation, the mass ratio of zinc oxide nanowire and nano silver wire is 1: 1.6；
The flexible multi-functional sensing fiber resistance of preparation is 32M Ω, and pressure sensing sensitivity is 2.2kPa-1, humidity sensor
Sensitivity is 10.5%RH-1, temperature sensing sensitivity is 32.6% DEG C-1。
Embodiment 2
The preparation of flexible multi-functional sensing fiber based on zinc oxide/nano silver wire hybridization network, includes the following steps：
(1) respectively by 0.219g zinc acetate dihydrates (Zn (CH3COO)2·2H2O it) is added with 0.12g sodium hydroxides (NaOH)
Into 50mL absolute ethyl alcohols, zinc acetate solution and NaOH solution are respectively obtained；65 DEG C of oil bath heating zinc acetate solution 10min, will
NaOH solution is added dropwise to wherein dropwise, is continued to be kept stirring 10min, is cooled to room temperature, and Zinc oxide nanoparticle coagulant liquid is obtained,
The grain size of zinc oxide crystal seed nano particle therein is 30-60nm；
Cotton fiber was impregnated in Zinc oxide nanoparticle coagulant liquid after 1 minute to take out cotton fiber, is put into 120 DEG C
Dry 1h in air dry oven；Cycle twice, obtains the cotton fiber of Zinc oxide nanoparticle cladding；
(2) by 1.485g zinc nitrates (Zn (NO3)2·6H2) and 0.7g hexas (C O6H12N4) be added 100mL go
Wiring solution-forming in ionized water, then it is transferred to the polytetrafluoroethylene (PTFE) of 150mL from autoclave, the zinc oxide nano that step (1) is obtained
Vertically merging wherein, is sealed in 95 DEG C and reacts 12h the cotton fiber of rice grain cladding, after reaction, utilizes anhydrous second successively
Alcohol and deionized water are cleaned 3 times, and dry 1h, obtains the cotton fiber of zinc oxide nanowire cladding, wherein coating in 60 DEG C of baking ovens
Zinc oxide nanowire on cotton fiber is in hexagonal prism body structure, draw ratio 10-20, a diameter of 100 ± 20nm, length 1-
2μm；
(3) cotton fiber for the zinc oxide nanowire cladding that step (2) obtains is impregnated to 4mg/mL nano silver wire dispersion liquids
In, wherein nano silver wire is prepared by polyxol method, draw ratio 300；After five minutes, the cotton fiber of nano silver wire will be adsorbed
It takes out, is put into 60 DEG C of oven drying 1h；Circulation absorption 3 times obtains the flexible multi-functional sensing based on double nano line hybridization network
Fiber, i.e., the described flexible multi-functional sensing fiber based on zinc oxide/nano silver wire hybridization network.
In the flexible multi-functional sensing fiber of preparation, the mass ratio of zinc oxide nanowire and nano silver wire is 1: 2.1；
The flexible multi-functional sensing fiber resistance of preparation is 15k Ω, and pressure sensing sensitivity is 2.8kPa-1, humidity sensor
Sensitivity is 8.3%RH-1, temperature sensing sensitivity is 28% DEG C-1。
Embodiment 3
The preparation of flexible multi-functional sensing fiber based on zinc oxide/nano silver wire hybridization network, includes the following steps：
(1) respectively by 0.219g zinc acetate dihydrates (Zn (CH3COO)2·2H2O it) is added with 0.12g sodium hydroxides (NaOH)
Into 50mL absolute ethyl alcohols, zinc acetate solution and NaOH solution are respectively obtained；65 DEG C of oil bath heating zinc acetate solution 10min, will
NaOH solution is added dropwise to wherein dropwise, is continued to be kept stirring 10min, is cooled to room temperature, and Zinc oxide nanoparticle coagulant liquid is obtained,
The grain size of zinc oxide crystal seed nano particle therein is 30-60nm；
Cotton fiber was impregnated in Zinc oxide nanoparticle coagulant liquid after 3 minutes to take out cotton fiber, is put into 120 DEG C
Dry 1h in air dry oven；Cycle twice, obtains the cotton fiber of Zinc oxide nanoparticle cladding；
(2) by 1.485g zinc nitrates (Zn (NO3)2·6H2) and 0.7g hexas (C O6H12N4) be added 100mL go
Wiring solution-forming in ionized water, then it is transferred to the polytetrafluoroethylene (PTFE) of 150mL from autoclave, the zinc oxide nano that step (1) is obtained
Vertically merging wherein, is sealed in 130 DEG C and reacts 8h the cotton fiber of rice grain cladding, after reaction, utilizes anhydrous second successively
Alcohol and deionized water are cleaned 3 times, and dry 1h, obtains the cotton fiber of zinc oxide nanowire cladding, wherein coating in 60 DEG C of baking ovens
Zinc oxide nanowire on cotton fiber is in hexagonal prism body structure, draw ratio 10-20, a diameter of 80-100nm, length 1-2
μm；
(3) cotton fiber for the zinc oxide nanowire cladding that step (2) obtains is impregnated to 5mg/mL nano silver wire dispersion liquids
In, wherein nano silver wire is prepared by polyxol method, draw ratio 300；After five minutes, the cotton fiber of nano silver wire will be adsorbed
It takes out, is put into 65 DEG C of oven drying 1.5h；Circulation absorption 4 times obtains the flexible multi-functional based on double nano line hybridization network and passes
Feel fiber, i.e., the described flexible multi-functional sensing fiber based on zinc oxide/nano silver wire hybridization network.
In the flexible multi-functional sensing fiber of preparation, the mass ratio of zinc oxide nanowire and nano silver wire is 1: 2.5；
The resistance of the flexible multi-functional sensing fiber of preparation is 300 Ω, and pressure sensing sensitivity is 3.2kPa-1, humidity biography
Sense sensitivity is 5.2%RH-1, temperature sensing sensitivity is 23.2% DEG C-1。
Embodiment 4
The preparation of flexible multi-functional sensing fiber based on zinc oxide/nano silver wire hybridization network, includes the following steps：
(1) respectively by 0.219g zinc acetate dihydrates (Zn (CH3COO)2·2H2O it) is added with 0.12g sodium hydroxides (NaOH)
Into 50mL absolute ethyl alcohols, zinc acetate solution and NaOH solution are respectively obtained；65 DEG C of oil bath heating zinc acetate solution 10min, will
NaOH solution is added dropwise to wherein dropwise, is continued to be kept stirring 10min, is cooled to room temperature, and Zinc oxide nanoparticle coagulant liquid is obtained,
The grain size of zinc oxide crystal seed nano particle therein is 30-60nm；
Cotton fiber was impregnated in Zinc oxide nanoparticle coagulant liquid after 4 minutes to take out cotton fiber, is put into 120 DEG C
Dry 1h in air dry oven；Cycle twice, obtains the cotton fiber of Zinc oxide nanoparticle cladding；
(2) by 1.485g zinc nitrates (Zn (NO3)2·6H2) and 0.7g hexas (C O6H12N4) be added 100mL go
Wiring solution-forming in ionized water, then it is transferred to the polytetrafluoroethylene (PTFE) of 150mL from autoclave, the zinc oxide nano that step (1) is obtained
Vertically merging wherein, is sealed in 90 DEG C and reacts 18h the cotton fiber of rice grain cladding, after reaction, utilizes anhydrous second successively
Alcohol and deionized water are cleaned 3 times, and dry 1h, obtains the cotton fiber of zinc oxide nanowire cladding, wherein coating in 60 DEG C of baking ovens
Zinc oxide nanowire on cotton fiber is in hexagonal prism body structure, draw ratio 10-20, a diameter of 80-100nm, length 1-2
μm；
(3) cotton fiber for the zinc oxide nanowire cladding that step (2) obtains is impregnated to 5mg/mL nano silver wire dispersion liquids
In, wherein nano silver wire is prepared by polyxol method, draw ratio 300；After five minutes, the cotton fiber of nano silver wire will be adsorbed
It takes out, is put into 80 DEG C of oven drying 0.5h；Circulation absorption 6 times obtains the flexible multi-functional based on double nano line hybridization network and passes
Feel fiber, i.e., the described flexible multi-functional sensing fiber based on zinc oxide/nano silver wire hybridization network.
In the flexible multi-functional sensing fiber of preparation, the mass ratio of zinc oxide nanowire and nano silver wire is 1: 3.6；
The resistance of the flexible multi-functional sensing fiber of preparation is 50 Ω, and pressure sensing sensitivity is 3.3kPa-1, humidity sensor
Sensitivity is 0.2%RH-1, temperature sensing sensitivity is 2% DEG C-1。
It is the preferred embodiment of the present invention above, it is noted that described to do in the premise for not departing from the principle of the invention
Improvement and replacement for going out etc., all fall in protection scope of the present invention.
Claims (10)
1. a kind of preparation method of the flexible multi-functional sensing fiber based on zinc oxide/nano silver wire hybridization network, feature exist
In including the following steps：
(1) cotton fiber is impregnated in Zinc oxide nanoparticle coagulant liquid, takes out, is dry, obtain Zinc oxide nanoparticle cladding
Cotton fiber；
(2) cotton fiber for the Zinc oxide nanoparticle cladding that step (1) obtains is placed in zinc oxide reaction precursor liquid, through hydro-thermal
It after reaction, takes out, washing, drying obtain the cotton fiber of zinc oxide nanowire cladding；
(3) cotton fiber for the zinc oxide nanowire cladding that step (2) obtains is impregnated in nano silver wire dispersion liquid, dipping absorption
Nano silver wire takes out, is dry, obtaining the cotton fiber of coating zinc oxide/nano silver wire double nano line hybridization network, i.e., described to be based on
The flexible multi-functional sensing fiber of zinc oxide/nano silver wire hybridization network.
2. preparation method according to claim 1, which is characterized in that in step (1), the cotton fiber is that non-woven cotton is fine
Dimension, single fiber shape are circle, and diameter of section is 10 μm -30 μm.
3. preparation method according to claim 1, which is characterized in that in step (1), the Zinc oxide nanoparticle gel
Liquid is to be prepared using sol-gal process, and the grain size of the zinc oxide crystal seed nano particle in coagulant liquid is 30-60nm；It is described solidifying
The liquid phase of glue is any one in ethyl alcohol, water and isopropanol；A concentration of 5-7mg/mL of the coagulant liquid；The dipping
Time is 1-5 minutes；The drying is in 120 DEG C of forced air drying 1h.
4. preparation method according to claim 1, which is characterized in that the operation circulation of step (1) is twice.
5. preparation method according to claim 1, which is characterized in that in step (2), the zinc oxide reaction precursor liquid is
The aqueous solution of equimolar zinc salt and alkali；The zinc salt includes any one in zinc nitrate, zinc acetate and zinc carbonate；The alkali
Including any one in sodium hydroxide, potassium hydroxide and hexa；The zinc oxide reaction precursor liquid it is a concentration of
0.1mmol/mL。
6. preparation method according to claim 1, which is characterized in that in step (2), the temperature of the hydro-thermal reaction is
90-135 DEG C, the time of reaction is 1-24h；The washing is to be washed 3 times with absolute ethyl alcohol and deionized water successively；The drying
It is in 60 DEG C of dry 1h.
7. preparation method according to claim 1, which is characterized in that in step (2), after hydro-thermal reaction, be coated on cotton
Zinc oxide nanowire on fiber is in hexagonal prism body structure, and draw ratio 10-20, a diameter of 80-100nm, length is 1-2 μm.
8. preparation method according to claim 1, which is characterized in that in step (3), the nano silver wire dispersion liquid it is dense
Degree is 2-5mg/mL；The solvent of the nano silver wire dispersion liquid includes any one in ethyl alcohol and isopropanol；The dipping is inhaled
The attached time is 1-5 minutes；The drying is in 60-80 DEG C of forced air drying 0.5-2h.
9. preparation method according to claim 1, which is characterized in that the operation circulation of step (3) 3-6 times.
10. a kind of based on zinc oxide/nano silver wire hybridization network made from any one of the claim 1-9 preparation methods
Flexible multi-functional sensing fiber, which is characterized in that the flexible multi-functional sensing fiber has bending, and pressure sensing sensitivity is most
Up to 3.3kPa-1, humidity sensor sensitivity is up to 10.5%RH-1, temperature sensing sensitivity is up to 32.6% DEG C-1。
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| CN112482020A (en) * | 2020-11-25 | 2021-03-12 | 上海即索实业有限公司 | Copper ammonia fiber mask cloth and preparation method thereof |
| CN115784295A (en) * | 2022-11-28 | 2023-03-14 | 哈尔滨工业大学（深圳） | Zinc oxide with three-dimensional hybrid structure and preparation method and application thereof |
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