CN110726496A - MXene coated textile force-sensitive sensor and preparation method thereof - Google Patents
MXene coated textile force-sensitive sensor and preparation method thereof Download PDFInfo
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- CN110726496A CN110726496A CN201910964327.3A CN201910964327A CN110726496A CN 110726496 A CN110726496 A CN 110726496A CN 201910964327 A CN201910964327 A CN 201910964327A CN 110726496 A CN110726496 A CN 110726496A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
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- 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
- D06M11/73—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 carbon or compounds thereof
- D06M11/74—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 carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
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- 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
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- 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
- D06M2101/16—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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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to an MXene coated textile force-sensitive sensor and a preparation method thereof, wherein the force-sensitive sensor comprises a flexible substrate layer and a response transmission layer; wherein the response transmission layer is made of MXene. The invention can quickly show corresponding current response under different external pressures; the preparation method is simple, and the force-sensitive response device is high in sensitivity, low in cost, high in strength, good in flexibility and wide in application prospect in the field of wearable intelligent clothes.
Description
Technical Field
The invention belongs to the field of force-sensitive sensors, and particularly relates to an MXene coated textile force-sensitive sensor and a preparation method thereof.
Background
With the advent of intelligent wearable electronics, sensing devices can play a key role in the detection of humans and their surroundings. The flexible sensing device has the advantages of being easy to process, low in cost, light in weight and excellent in impact resistance and durability, and new possibilities are provided for creating a smart wearable system. Become of great importance in many application areas, such as medical diagnostics, motion monitoring and human-machine interfaces. The flexible sensing device is a functional material which can be attached to the surfaces of various irregular objects and has a sensing effect on the surface acting force (compression, bending, stretching, distortion and the like) of the material.
The traditional wearable equipment is a complete sensing device formed by combining an accelerometer and a gyroscope and used for detecting human behaviors more accurately, but the method has the problems of high cost, complex algorithm, complex structure and the like. Therefore, new materials with good sensing performance, excellent adhesion and processability (such as weaving and spinning) become the main direction of wearable research in the future. How to effectively, simply and inexpensively prepare the flexible force-sensitive sensing material with high conductivity, high sensitivity, multiple functions, quick response and high stability and apply the flexible force-sensitive sensing material to wearable sensing equipment is the key and difficult point of the current sensing material research.
With the rapid development of 2D materials, in addition to graphene, MXene is added as a new 2D material to a large family of 2D nanomaterial worlds. Ti3C2By stripping Ti in HF at room temperature3AlC2The powder yielded 2D nanoplatelets, which were named MXene. MXene is a 2D layered material derived from a transition metal carbide, nitride or carbonitride, including Ti3C2,Ti2C,Ta4C3TiNbC and (V)0.5Cr0.5)3C2. Sensors based on MXene have been extensively studied, MXene (Ti)3C2Tx) Force of/rGO (MX/rGO) ultralight/superelastic aerogelThe sensitive sensor has extremely high sensitivity (22.56 kPa)-1) Quick response time: (<200ms) and has good stability in 10000 cycles and captures signals below 10Pa so that adult pulses and various actions can be tested at random clearly, thus having potential applications in distinguishing fine strain and monitoring health activities.
However, for a high-performance flexible sensor, besides achieving high response and sensitivity in one device, the core technical requirement of the wearable sensor in the future, namely biocompatibility, should be met, which is very challenging for material and device design, and at the same time, the high price of the raw materials (Pt, Au, etc.) required in the assembly stage also limits the development of the flexible sensor.
Disclosure of Invention
The invention aims to solve the technical problem of providing an MXene coated textile force-sensitive sensor and a preparation method thereof.
The invention provides an MXene coated textile force-sensitive sensor, which comprises a flexible substrate layer and a response transmission layer, wherein the flexible substrate layer is arranged on the MXene coated textile force-sensitive sensor; wherein the response transmission layer is made of MXene.
The flexible substrate layer is one of non-woven fabric, pure cotton cloth, ketone ammonia fiber cloth, pure linen cloth and bamboo fiber cloth. The fabric has high strength, good adhesion capacity of MXene on the surface of the fabric, high stability, excellent skin-friendly performance of the fabric, and ventilation and comfort when contacting with a human body. MXene has high conductivity, low lithium ion diffusion barrier layer and stable long-term cycling performance. And it has advantages such as nontoxic, biocompatibility is good, adapts to the demand in wearable field.
The invention provides a preparation method of an MXene coated textile force-sensitive sensor, which comprises the following steps:
(1) preparing MXene dispersion liquid;
(2) dipping a flexible substrate in the MXene dispersion liquid, taking out and drying to obtain an MXene coated flexible substrate material;
(3) connecting copper adhesive tapes at two ends of the MXene coated flexible substrate material, fixing with conductive silver paste, and packaging; and then connecting a working electrode at one end and connecting a counter electrode and a reference electrode at the other end to obtain the MXene coated textile force-sensitive sensor.
The preparation steps of the MXene dispersion liquid in the step (1) are as follows:
preparing etching solution of LiF, hydrochloric acid and ultrapure water, fully stirring, and then adding MAX phase Ti3AlC2Continuously stirring the powder for reaction, transferring the mixed solution into a centrifugal tube after etching is finished, and centrifuging for many times until the pH value of the supernatant is close to 7; and then fully dispersing the obtained precipitate in deionized water, centrifuging again to collect the black dispersion liquid on the upper layer, and finally storing the dispersion liquid at low temperature.
The MAX phase Ti3AlC2The mass ratio of the powder to the LiF to the hydrochloric acid to the ultrapure water is 1: 1-2.5: 11.79-28.296: 5.
The method for regulating and controlling the loading amount of MXene on the surface of the fabric is to increase the concentration of MXene dispersion liquid and increase the soaking times.
The technological parameters of the stirring reaction are as follows: the reaction temperature is 20-30 ℃, the stirring speed is 600-800 r/min, and the stirring time is 24-29 h.
The speed of the multiple centrifugation is 3500-4000 r/min, and the centrifugation time is 5-10 min each time.
The speed of the secondary centrifugation is 3500-4000 r/min, and the centrifugation time is 5-10 min.
The preferable method for preparing MXene comprises the following steps: mixing MAX phase (Ti)3AlC2) Slowly adding the powder into the fully stirred LiF, hydrochloric acid and ultrapure water etching solution, and continuously stirring for 24 hours until the etching is complete, wherein the powder is of MAX phase (Ti)3AlC2) The mass ratio of the powder, LiF, hydrochloric acid and ultrapure water is 1: 1.5: 18.3924: 5. the washing was performed by multiple centrifugations at 3500r/min until the supernatant pH was close to 7. And then fully dispersing the obtained precipitate in deionized water, centrifuging at 3500r/min for 5min, and collecting the upper black liquid, namely MXene dispersion liquid.
Advantageous effects
(1) The MXene coated textile force-sensitive sensor material disclosed by the invention has good flexibility, high responsiveness and detection range, and can be applied to the field of intelligent wearability. Meanwhile, the composite material has good mechanical and electrical properties, biocompatibility and environmental friendliness.
(2) The preparation method is simple and easy to implement, has low requirements on production equipment and is low in cost.
Drawings
Fig. 1 is an XRD pattern of MXene prepared in example 1.
FIG. 2 is a schematic diagram of the fabrication of a coated textile force sensor of the present invention.
FIG. 3 is a graph of MXene adsorption per cubic centimeter for various fabrics prepared in examples 1-6;
FIG. 4 is a graph of the UV absorbance (600nm) of dispersions obtained by ultrasonic treatment after adsorption of MXene on various fabrics prepared in examples 1-6;
fig. 5 is a time current curve of the cotton based MXene coated textile force sensor prepared in example 1 under a dc bias of 0.4V.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Example 1
(1) Preparation process of MXene:
mixing the components in a mass ratio of 1.5: 18.3924: 5, stirring the LiF, the hydrochloric acid and the ultrapure water etching solution fully, and slowly adding 1gMAX phase (Ti)3AlC2) And (5) continuously stirring the powder for 24h until the etching is complete. The washing was performed by multiple centrifugations at 3500r/min until the supernatant pH was close to 7. And then fully dispersing the obtained precipitate in deionized water, centrifuging at 3500r/min for 5min, and collecting the upper black liquid, namely MXene dispersion liquid. Fig. 1 is an XRD pattern of MXene prepared in this example 1, and it can be seen that MXene is completely etched.
(2) MXene/fabric adsorption treatment:
putting a certain size of pure cotton cloth into a culture dish containing the MXene \ water dispersion liquid obtained in the step (1), taking out after full immersion, and drying by cold wind, as shown in figure 2. Combining fig. 3 and fig. 4, it can be seen that the pure cotton cloth has a high adsorption quality to MXene, a good adhesion capability, and is not easy to fall off after long-time washing, and has excellent stability.
(3) And (3) repeating the step (2) for multiple times of soaking to regulate and control the loading capacity of MXene on the surface of the fabric.
(4) Preparing the MXene coated textile force-sensitive sensor:
connecting copper adhesive tapes to two ends of the MXene coated pure cotton cloth obtained in the step (3) and fixing the MXene coated pure cotton cloth by conductive silver paste, then connecting a Working Electrode (WE) to one end of the MXene coated pure cotton cloth, connecting a Counter Electrode (CE) and a Reference Electrode (RE) to the other end of the MXene coated pure cotton cloth, and packaging the MXene coated pure cotton cloth by using a polyimide adhesive tape. The MXene coated cotton cloth obtained in this example was subjected to a force-sensitive current response behavior test under a DC bias of 0.4V at a constant potential. A certain pressure was applied with a weight (15g) on the surface of MXene coated cotton cloth, the current increased rapidly as the weight mass increased, and the current dropped rapidly to the initial state when the weight was removed. The force sensitive current for MXene/coated cotton cloth was approximately 87 μ A, responding rapidly to pressure. Fig. 5 is a time current curve of the pure cotton cloth based MXene coated textile force sensor prepared in example 1 under a dc bias of 0.4V. It can be seen that the greater the external pressure applied to the surface of the force-sensitive sensor of the MXene coated pure cotton fabric with different thicknesses, the greater the corresponding current response is shown, and the more obvious the current response is along with the increase of the thickness of the fabric.
Example 2
(1) Preparation process of MXene:
mixing the components in a mass ratio of 1.0: 15.0312: 5, stirring the LiF, the hydrochloric acid and the ultrapure water etching solution fully, and slowly adding 1gMAX phase (Ti)3AlC2) And (5) continuously stirring the powder for 25h until the etching is complete. Washing was performed by multiple centrifugations at 3600r/min until the supernatant pH was close to 7. Then fully dispersing the obtained precipitate in deionized water, centrifuging at 3600r/min for 6min, and collecting the upper layerAnd black liquid, namely MXene dispersion liquid.
(2) MXene/fabric adsorption treatment:
putting the copper ammonia cloth with a certain size into a culture dish containing the MXene \ water dispersion liquid obtained in the step (1), taking out after the copper ammonia cloth is fully soaked, and drying by cold air, wherein the step is shown in figure 2. By combining fig. 3 and fig. 4, it can be seen that the cuprammonium cloth has a large amount of adsorption to MXene, a good adhesion capability, and is not easy to fall off after long-time washing, and has a good stability.
(3) And (3) repeating the step (2) for multiple times of soaking to regulate and control the loading capacity of MXene on the surface of the fabric.
(4) Preparing the MXene coated textile force-sensitive sensor:
connecting copper adhesive tapes to two ends of the MXene coated copper ammonia cloth obtained in the step (3), fixing the MXene coated copper ammonia cloth by using conductive silver paste, and packaging by using a polyimide adhesive tape. Then one end is connected to the Working Electrode (WE) and the other end is connected to the Counter Electrode (CE) and the Reference Electrode (RE). The MXene coated cuprammonium cloth prepared in this example was subjected to a force-sensitive current response behavior test under a DC bias of 0.4V constant potential. The MXene coated cotton cloth was pressed with a weight on its surface with a certain pressure, the current increased rapidly as the weight mass increased, and the current decreased rapidly to the starting state when the weight was removed. The force sensitive current for MXene/coated cuprammonium cloth was about 38 μ A, responding relatively quickly to pressure.
Example 3
(1) Preparation process of MXene:
mixing the components in a mass ratio of 1.25: 21.6936: 5, stirring the LiF, the hydrochloric acid and the ultrapure water etching solution fully, and slowly adding 1gMAX phase (Ti)3AlC2) And (5) continuously stirring the powder for 26h until the etching is complete. The washing was carried out by multiple centrifugation at 3700r/min until the supernatant pH was close to 7. And then fully dispersing the obtained precipitate in deionized water, and centrifuging for 7min at 3700r/min to collect the upper black liquid, namely MXene dispersion liquid.
(2) MXene/fabric adsorption treatment:
placing a certain size of non-woven fabric into a culture dish containing the MXene \ water dispersion liquid obtained in the step (1), taking out after sufficient immersion, and drying by cold wind, as shown in figure 2. By combining fig. 3 and fig. 4, it can be seen that the non-woven fabric has a large adsorption amount to MXene, a good adhesion capability, and is not easy to fall off after long-time washing, and has a good stability.
(3) And (3) repeating the step (2) for multiple times of soaking to regulate and control the loading capacity of MXene on the surface of the fabric.
(4) Preparing the MXene coated textile force-sensitive sensor:
connecting copper adhesive tapes to two ends of the MXene coated non-woven fabric obtained in the step (3), fixing the MXene coated non-woven fabric by using conductive silver paste, and packaging by using a polyimide adhesive tape. Then one end is connected to the Working Electrode (WE) and the other end is connected to the Counter Electrode (CE) and the Reference Electrode (RE). The MXene coated nonwoven fabric obtained in this example was subjected to a force-sensitive current response behavior test under a DC bias of 0.4V at a constant potential. The MXene coated non-woven fabric was pressed with a weight on its surface with a certain pressure, the current increase was evident as the weight mass increased, and the current rapidly dropped to the initial state when the weight was removed. The force sensitive current for MXene/coated nonwoven was approximately 85 μ A, responding rapidly to pressure.
Example 4
(1) Preparation process of MXene:
mixing the components in a mass ratio of 1.75: 24.9948: 5, stirring the LiF, the hydrochloric acid and the ultrapure water etching solution fully, and slowly adding 1gMAX phase (Ti)3AlC2) And (5) continuously stirring the powder for 27h until the etching is complete. The washing was performed by multiple centrifugations at 3800r/min until the supernatant pH was close to 7. And then fully dispersing the obtained precipitate in deionized water, centrifuging at 3800r/min for 8min, and collecting the upper layer black liquid, namely MXene dispersion liquid.
(2) MXene/fabric adsorption treatment:
putting pure linen with a certain size into a culture dish containing MXene \ water dispersion liquid obtained in the step (1), taking out after full immersion, and drying by cold wind, as shown in figure 2. By combining fig. 3 and fig. 4, it can be seen that the pure linen has a large adsorption amount to MXene, good adhesion capability, and good stability, and is not easy to fall off after long-time washing.
(3) And (3) repeating the step (2) for multiple times of soaking to regulate and control the loading capacity of MXene on the surface of the fabric.
(4) Preparing the MXene coated textile force-sensitive sensor:
connecting copper adhesive tapes to two ends of the MXene coated pure linen obtained in the step (3), fixing the MXene coated pure linen by using conductive silver paste, and packaging the MXene coated pure linen by using a polyimide adhesive tape. Then one end is connected to the Working Electrode (WE) and the other end is connected to the Counter Electrode (CE) and the Reference Electrode (RE). The MXene coated pure linen prepared in the embodiment was subjected to a force-sensitive current response behavior test under a DC bias of a constant potential of 0.4V. The MXene coated scrim surface was pressed with a weight with a certain pressure, the current increase was more pronounced as the weight mass increased, and when the weight was removed, the current dropped rapidly to the starting state. The force sensitive current for MXene/coated scrim was about 87 μ A, responding rapidly to pressure.
Example 5
(1) Preparation process of MXene:
mixing the components in a mass ratio of 2.0: 11.79: 5, stirring the LiF, the hydrochloric acid and the ultrapure water etching solution fully, and slowly adding 1gMAX phase (Ti)3AlC2) And (5) continuously stirring the powder for 28h until the etching is complete. The washing was performed by multiple centrifugation at 3900r/min until the supernatant pH was close to 7. And then, fully dispersing the obtained precipitate in deionized water, centrifuging for 9min at 3900r/min, and collecting the upper-layer black liquid, namely the MXene dispersion liquid.
(2) MXene/fabric adsorption treatment:
and (2) putting bamboo fiber cloth with a certain size into a culture dish containing the MXene \ water dispersion liquid obtained in the step (1), taking out after full immersion, and drying by cold wind, as shown in figure 2. With reference to fig. 3 and 4, it can be seen that the bamboo fiber cloth has a large amount of adsorption of MXene, good adhesion, and good stability, and is not easy to fall off after long-time washing.
(3) And (3) repeating the step (2) for multiple times of soaking to regulate and control the loading capacity of MXene on the surface of the fabric.
(4) Preparing the MXene coated textile force-sensitive sensor:
connecting copper adhesive tapes to two ends of the MXene coated bamboo fiber cloth obtained in the step (3), fixing the MXene coated bamboo fiber cloth by using conductive silver paste, and packaging by using a polyimide adhesive tape. Then one end is connected to the Working Electrode (WE) and the other end is connected to the Counter Electrode (CE) and the Reference Electrode (RE). The MXene coated bamboo fiber cloth prepared in the embodiment was subjected to a force-sensitive current response behavior test under a DC bias of a constant potential of 0.4V. The surface of MXene coated bamboo fiber cloth is applied with certain pressure by a weight, the current is obviously increased along with the increase of the weight mass, and when the weight is removed, the current is rapidly reduced to the initial state. The force sensitive current of MXene/coated bamboo fiber cloth was about 95. mu.A, and the response to pressure was rapid.
Example 6
(1) Preparation process of MXene:
mixing the components in a mass ratio of 2.5: 28.296:5, stirring the LiF, the hydrochloric acid and the ultrapure water etching solution fully, and slowly adding 1gMAX phase (Ti)3AlC2) And (5) continuously stirring the powder for 29h until the etching is complete. The washing was carried out by multiple centrifugations at 4000r/min until the pH of the supernatant was close to 7. And then fully dispersing the obtained precipitate in deionized water, centrifuging for 10min at 4000r/min, and collecting the upper layer black liquid, namely MXene dispersion liquid.
(2) MXene/fabric adsorption treatment:
putting a certain size of polyester fabric into a culture dish containing the MXene \ water dispersion solution obtained in the step (1), fully soaking, taking out, and drying with cold air, as shown in figure 2. Referring to fig. 3 and 4, it can be seen that the polyester fabric has a general MXene adsorption amount, a poor adhesion ability, and a poor stability, and is easily peeled off after being washed with water for a long time.
(3) And (3) repeating the step (2) for multiple times of soaking to regulate and control the loading capacity of MXene on the surface of the fabric.
(4) Preparing the MXene coated textile force-sensitive sensor:
connecting copper adhesive tapes to two ends of the MXene coated polyester fabric obtained in the step (3), fixing the MXene coated polyester fabric by using conductive silver paste, and packaging by using a polyimide adhesive tape. Then one end is connected to the Working Electrode (WE) and the other end is connected to the Counter Electrode (CE) and the Reference Electrode (RE). The MXene-coated polyester fabric obtained in this example was subjected to a force-sensitive current response behavior test under a DC bias of 0.4V. The surface of MXene-coated polyester fabric was stressed with a weight, the current increase was insignificant as the weight mass increased, and the current rapidly dropped to the starting state when the weight was removed. The force-sensitive current of MXene/Dacron coated fabric was about 35 μ A, which responded slowly to pressure.
Claims (8)
1. An MXene coating fabrics force sensor which characterized in that: comprises a flexible substrate layer and a response transmission layer; wherein the response transmission layer is made of MXene.
2. The force sensitive sensor of claim 1, wherein: the flexible substrate layer is one of non-woven fabric, pure cotton cloth, ketone ammonia fiber cloth, pure linen cloth and bamboo fiber cloth.
3. A method for preparing an MXene coated textile force-sensitive sensor comprises the following steps:
(1) preparing MXene dispersion liquid;
(2) dipping a flexible substrate in the MXene dispersion liquid, taking out and drying to obtain an MXene coated flexible substrate material;
(3) connecting copper adhesive tapes at two ends of the MXene coated flexible substrate material, fixing with conductive silver paste, and packaging; and then connecting a working electrode at one end and connecting a counter electrode and a reference electrode at the other end to obtain the MXene coated textile force-sensitive sensor.
4. The production method according to claim 3, characterized in that: the preparation steps of the MXene dispersion liquid in the step (1) are as follows:
preparing etching solution of LiF, hydrochloric acid and ultrapure water, fully stirring, and then adding MAX phase Ti3AlC2Continuously stirring the powder for reaction, transferring the mixed solution into a centrifugal tube after etching is finished, and centrifuging for many times until the pH value of the supernatant is close to 7; and then fully dispersing the obtained precipitate in deionized water, centrifuging again to collect the black dispersion liquid on the upper layer, and finally storing the dispersion liquid at low temperature.
5. The method of claim 4, wherein: the MAX phase Ti3AlC2The mass ratio of the powder to the LiF to the hydrochloric acid to the ultrapure water is 1: 1-2.5: 11.79-28.296: 5.
6. The method of claim 4, wherein: the technological parameters of the stirring reaction are as follows: the reaction temperature is 20-30 ℃, the stirring speed is 600-800 r/min, and the stirring time is 24-29 h.
7. The method of claim 4, wherein: the speed of the multiple centrifugation is 3500-4000 r/min, and the centrifugation time is 5-10 min each time.
8. The method of claim 4, wherein: the speed of the secondary centrifugation is 3500-4000 r/min, and the centrifugation time is 5-10 min.
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| CN111501326A (en) * | 2020-05-13 | 2020-08-07 | 郑州大学 | Multifunctional wearable polymer/MXene composite fabric heater and preparation method thereof |
| CN112331488A (en) * | 2020-07-24 | 2021-02-05 | 上海工程技术大学 | Method for preparing flexible supercapacitor based on MXene and cotton fabric composite material |
| CN112754464A (en) * | 2020-12-03 | 2021-05-07 | 东华大学 | Application of MXene/fabric-based sensor with sandwich structure in respiration monitoring |
| CN112754464B (en) * | 2020-12-03 | 2022-11-04 | 东华大学 | Application of MXene/fabric-based sensor with sandwich structure in respiration monitoring |
| CN113074624B (en) * | 2021-04-02 | 2022-08-16 | 电子科技大学 | Flexible waterproof bending strain sensor based on double sheets of paper and preparation method thereof |
| CN113074624A (en) * | 2021-04-02 | 2021-07-06 | 电子科技大学 | Flexible waterproof bending strain sensor based on double sheets of paper and preparation method thereof |
| CN113249961A (en) * | 2021-04-25 | 2021-08-13 | 北京邮电大学 | Flexible device structure based on conductive fiber network and preparation method and application thereof |
| CN113235310A (en) * | 2021-05-07 | 2021-08-10 | 北京航空航天大学 | Preparation method and application of piezoresistive sensing fabric |
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| CN113295191A (en) * | 2021-05-17 | 2021-08-24 | 广州大学 | Bionic bamboo leaf structure flexible strain sensor and preparation method and application thereof |
| CN113295085A (en) * | 2021-05-20 | 2021-08-24 | 青岛大学 | Wearable non-woven fabric sensor based on three-dimensional conductive network and preparation method thereof |
| CN115787283A (en) * | 2021-09-10 | 2023-03-14 | 北京服装学院 | Preparation method and application of infrared stealth fabric |
| CN114964601A (en) * | 2022-05-24 | 2022-08-30 | 深圳市一鸣新材料有限公司 | Real-time monitoring device for pressure change inside battery |
| CN114964601B (en) * | 2022-05-24 | 2024-05-14 | 深圳市一鸣新材料有限公司 | A pressure change real-time supervision device for inside battery |
| CN115748294A (en) * | 2022-11-23 | 2023-03-07 | 天津科技大学 | Preparation method of flexible conductive hydrophobic breathable sensor, sensor and application |
| CN115748294B (en) * | 2022-11-23 | 2023-09-01 | 天津科技大学 | Preparation method of flexible conductive hydrophobic and breathable sensor, sensor and application |
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