CN108707252A - A kind of nano combined ionic liquid gel material and its preparation and the strain transducer based on the material - Google Patents

A kind of nano combined ionic liquid gel material and its preparation and the strain transducer based on the material Download PDF

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CN108707252A
CN108707252A CN201810548926.2A CN201810548926A CN108707252A CN 108707252 A CN108707252 A CN 108707252A CN 201810548926 A CN201810548926 A CN 201810548926A CN 108707252 A CN108707252 A CN 108707252A
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ionic liquid
liquid gel
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nano combined
gel material
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CN108707252B (en
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陈咏梅
张丽梅
董点点
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Xian Jiaotong University
Shaanxi University of Science and Technology
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Xian Jiaotong University
Shaanxi University of Science and Technology
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    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • G01B7/18Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
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Abstract

The invention discloses a kind of high preparation methods for stretching selfreparing multifunctional nano compound ion liquid gel rubber material, ferriferrous oxide nano-particle is coated and is added in ionic liquid solution, sequentially add high polymer monomer, initiator, it stirs evenly to form mixed solution, pours into ultraviolet irradiation or heating in glass mold and obtain nano combined ionic liquid gel material.The ionic liquid gel material has both high tensile property and self-healing properties, while also having self-sticking, electric conductivity, magnetic responsiveness, anti-flammability and wide operating temperature section.The present invention provides a kind of resistance strains based on the multifunctional nano compound ion liquid gel rubber material simultaneously, the sensor can both detect very big strain, small strain can also be detected, and there is higher sensitivity, solve the problems, such as that traditional strain transducer cannot carry out very big strain detecting.

Description

A kind of nano combined ionic liquid gel material and its preparation and answering based on the material Become sensor
Technical field
The invention belongs to high molecular material and flexible electronic technical field, more particularly to a kind of nano combined ionic liquid is solidifying Glue material and its preparation and strain transducer based on the material.
Background technology
Ionic liquid gel is a kind of viscoplasticity macromolecule being swollen a large amount of ionic liquids in its Space network of polymer Material.Due to it with thermal stability, chemical inertness, almost without saturated vapor pressure, good conductivity and wide electrochemical window The advantages such as mouth, before ionic liquid gel has a wide range of applications in fields such as capacitor, energy cell, sensor and drivers Scape.Ionic liquid gel inevitably will produce damage during long-time service, to cause error message even raw Critically ill danger.Selfreparing ionic liquid gel is that one kind has the function of that polymer mesh structure damaged structure can be repaired and gel is special The intellectual material of property.The performance for assigning ionic liquid gel selfreparing, significantly to promote safety in utilization and the service life of material Provide a kind of economic and easily new method.
There are shifting contradictions for the mechanical property and self-healing properties of ionic liquid gel.In order to improve ionic liquid The self-healing properties of gel are often to sacrifice its mechanical property as cost.In the ionic liquid gel reported at present, has and review one's lessons by oneself The ionic liquid gel of renaturation energy has that mechanical property is excessively poor, bears larger stress;But it can bear centainly to answer Power and the ionic liquid gel deformed upon and the function of often not having selfreparing.These defects significantly limit ionic liquid Application of the body gel in new scientific and trechnolocial undertaking especially has the flexible electronic field of deformation demand.Currently, there has been no researchs to report Road has both the preparation method of the multifunctional ion liquid gel rubber material of high tensile property and self-healing properties and is based on the material simultaneously The strain transducer of material.With the appearance and fast development of flexible electronic product, the strain transducer of flexible extensible is got over Carry out bigger demand.Therefore there is the ionic liquid of excellent mechanical property and self-healing properties simultaneously by chemical design Gel rubber material has important engineering significance, also exactly flexible electronic field problem in the urgent need to address.
Invention content
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of high stretching selfreparing is multi-functional Nano combined ionic liquid gel material and its preparation and the strain transducer based on the material, the technical principle of the preparation method It is:Carboxyl in Fe (III) ion and polymer being dispersed in the ferriferrous oxide nano-particle in ionic liquid is formed Dynamic reversible metal coordinate bond, reversible dissociation/combination of this dynamic key is so that there is ionic liquid gel independence (to be not necessarily to External condition stimulate) repetition self-healing properties, disconnected during stretching, release after again can re-form reversible gold Belong to coordinate bond, assigns the excellent mechanical property of the compound ion liquid gel and self-healing properties.
Dynamic reversible metal coordinate bond in material makes ionic liquid gel not only have excellent tensile property, elongation Rate can reach 14 times, and with quick efficient self-repairability, at room temperature, 100% can repair its electric conductivity within 0.5 second Can, the tensile stress selfreparing of 90.0%-97.6% and the tensile elongation selfreparing of 92.0%-98.4% are completed in 4 hours. In addition, temperature can also influence the self-healing performance of ionic liquid nano-composite gel.The glass of ionic liquid nano-composite gel It is very low to change transition temperatureTherefore, which (such as -25 DEG C) can realize selfreparing at a lower temperature, when When temperature increases (such as 60 DEG C), self-healing properties improve.Meanwhile the ionic liquid nano-composite gel is assembled into resistance-type Sensor realizes its application in flexible electronic field as strain transducer.The material overcomes the drawing of high molecular material Stretch the contradiction between performance and self-healing properties, for the Multifucntional selfreparing flexible conducting material haveing excellent performance synthesis with And the preparation of large deformation flexible pulling force sensor provides new approaches.
To achieve the goals above, the technical solution adopted by the present invention is:
A kind of nano combined ionic liquid gel material, including ferriferrous oxide nano-particle and polymer, wherein polymerization Object can form dynamic reversible coordinate bond with Fe (III) ion on ferriferrous oxide nano-particle surface.
The polymer is 0.1wt%~10wt% of ferriferrous oxide nano-particle content.
The present invention also provides the preparation method of the nano combined ionic liquid gel material and answering based on the material Become sensor, specifically comprises the following steps
Step 1, the cladding of ferriferrous oxide nano-particle.In inert gas (such as nitrogen) protects atmosphere, heating is gentle Under slow stirring, polymer is added in the aqueous suspension of ferriferrous oxide nano-particle, it is poly- that continuation heating stirring obtains cladding The ferriferrous oxide nano-particle aqueous suspension for closing object collects nano-particle with magnet, and drying is weighed;
Step 2, the preparation of reaction mixture.The four of the coated polymer that high polymer monomer, initiator and step 1 are obtained Fe 3 O nano-particle is added in ionic liquid, is uniformly mixed and is obtained mixed liquor;
Step 3, the preparation of nano combined ionic liquid gel.Mixed liquor is poured into glass board mould, ultraviolet irradiation exists (6~20 hours) are irradiated under ultraviolet lamp or receiving doped with ferriferrous oxide nano-particle is prepared in heating (1~10 hour) Rice compound ion liquid gel rubber material.
Wherein, the polymer is alginate, polyvinyl alcohol (PVA), polyacrylamide (PAM), polymethyl Sour (PMAA), poly hydroxy ethyl acrylate (PHEMA), polyvinyl acetate (PVAc), polyacrylonitrile (PAN), polystyrene (PS) or polyvinylpyrrolidone (PVP).
The high polymer monomer is alginate (alginate, Alg), acrylamide (acrylamide, AAm), first Base acrylic acid (methacrylic acid, MAA), 2- Methacrylamides (2-methylacrylamide, MAA), acrylic acid (acrylic acid, AA), butyl acrylate (n-butyl acrylate, BA), ethyl acrylate (Ethyl Acrylate, AA), N-isopropylacrylamide (N-isopropylacrylamide, NIPAm), hydroxyethyl methacrylate (hydroxyethyl Methacrylate, HEMA), acrylonitrile (acrylonitrile, AN), styrene (styrene, ST) or N- vinyl pyrroles Alkanone (N-Vinyl-2-pyrrolidone, NVP).
The ionic liquid is glyoxaline ion liquid, pyridine type ionic liquid, quaternary phosphonium salt ionic liquid, quaternary ammonium salt Ionic liquid, pyrrolidines ionic liquid, piperidines ionic liquid, the ionic liquid with benzyl, sulfonic acid base class ionic liquid, hydroxyl Base class ionic liquid, carboxyl class ionic liquid, alkenyl class ionic liquid halogen ionic liquid, tetrafluoroborate class ionic liquid Body, hexafluoro-phosphate radical class ionic liquid or amino acid ion liquid.Such as 1- methyl imidazolium tetrafluoroborates, 1- ethyls -3- Methylimidazole ethyl-sulfate salt, 1- ethyl -2,3- methylimidazoles toluenesulfonate, N- ethylpyridines bromide, N- ethyls - 3- picolines hexafluorophosphate, ethyl triphenyl phosphine perchlorate, tetrabutylammonium fluoroform sulphonate, N- ethyls, methyl pyrrole Cough up alkane rhodanate, N- ethyls, methyl piperidine disulfate, 1- benzyl -3- methylimidazoles hexafluorophosphate, 1- sulfopropyls -3- Methylimidazole inner salt, 1- hydroxyl butyl -2,3- methylimidazoles bromide, 1- carboxymethyl -3- methylimidazole bis-trifluoromethylsulfoandimides Salt, 1- vinyl -3- methylimidazole dicyan amine salt or tetramethyl quaternary ammonium glycine ionic liquid etc..
The initiator is ammonium persulfate, potassium peroxydisulfate, sodium peroxydisulfate, 2- hydroxy-2-methyl -1- phenylacetones, benzene first Acyl methyl formate or alkyl salt compounded of iodine.
In the step 1, the dosage of polymer is 0.1wt%~10wt% of ferriferrous oxide nano-particle, the step In rapid 2, high polymer monomer dosage be nano combined ionic liquid gel material 1wt%~50wt%, the four of coated polymer Fe 3 O nano-particle dosage is 0.1wt%~30wt% of nano combined ionic liquid gel material, and initiator amount is The dosage of 0.01wt%~10wt% of high polymer monomer, ionic liquid are nano combined ionic liquid gel material 10wt%-90wt%.
In addition, the upper nano combined ionic liquid gel is cut into required shape as strain transducer.The present invention The nano combined ionic liquid gel material can be used for resistance formula strain transducer, by nano combined ionic liquid gel It is cut into required shape, and is connect with electrode material, as strain transducer.The principle of strain transducer provided by the invention is Pressure resistance type strain transducer, i.e. the relative resistance variation of ionic liquid gel material are linear or index closes with strain variation System.
In terms of nano combined ionic liquid gel material of the present invention is equally applicable in flexible electronic field.
The principle of the present invention:
The high selfreparing multifunctional nano compound ion liquid gel network that stretches of the present invention is matching based on dynamic reversible Position key is constituted.Coordinate bond is on Fe (III) ions and polymeric chain on ferriferrous oxide nano-particle surface The dynamic interaction of carboxylate radical, reversible dissociation/combination of this dynamic key is so that ionic liquid gel has without extraneous item The repetition independence self-healing properties of part stimulation;In addition the incorporation of ferriferrous oxide nano-particle also gives gel magnetic response Characteristic;And this multifunctional nano compound ion liquid gel also good characteristic with ionic liquid, such as wide temperature work Make section, electric conductivity, anti-flammability and wide electrochemical window.Based on the strain transducer of this nano combined ionic liquid gel, Belong to resistance strain, i.e., the relative resistance change of material is with the variation of strain is linear or exponential relationship.
Compared with prior art, the beneficial effects of the invention are as follows:
Compared with other ionic liquid gel materials, nano combined ionic liquid gel that the present invention prepares while having both The characteristic of high stretch and selfreparing, elongation strain stimulate without external condition up to 1400%, selfreparing and efficiently (in rooms Under temperature, 0.5 second can 100% repair its electric conductivity, in 4 hours complete 90.9% tensile stress selfreparing and 92.86% tensile elongation selfreparing), additionally there is magnetic responsiveness, can be driven under magnetic fields, conductivity magnitude In 0.01~1S/m.When this nano combined ionic liquid gel material is applied to strain transducer, it can not only be bonded arbitrary The testee of curved surface, and solve the problems, such as that traditional strain transducer strain length is shorter, extend strain transducer Using measurement range, and it ensure that (gauge factor, GF=3~20 are calculated by GF=Δ R/R/ ε for high sensitivity It arrives, Δ R represents increased resistance value when ε strains occur, R0Resistance value when representing without strain).
Description of the drawings
Fig. 1 is multi-functional Fe3O4The design preparation flow figure and mechanical property of@PAA/PAA ionic liquid gels and from By processability schematic diagram.
Fig. 2 is high stretch (2a) and self-repairability (2b) displaying of the nano combined ionic liquid gel material of the present invention Figure.
Fig. 3 is stretched (3a) to the nano combined sodium alginate ionic liquid gel sample of the present invention with electronic tensile machine The result schematic diagram of (3b) is tested with self-healing properties, corresponds to embodiment 1.
Fig. 4 is the tack and conductivity of nano combined polymethylacrylic acid ionic liquid nano-composite gel.
Fig. 5 is the pressure sensing of nano combined polyacrylamide ionic liquid nano-composite gel.
Specific implementation mode
With reference to the embodiment embodiment that the present invention will be described in detail.
A kind of high stretching selfreparing multifunctional nano compound ion liquid gel rubber material of the present invention and answering based on the material Become sensor.
Embodiment 1
With reference to 1a, 1b, 1c, 1d of figure 1, a kind of high stretching selfreparing multifunctional nano compound ion liquid gel of the present invention The preparation process of material is as follows:
Step 1, the cladding of ferriferrous oxide nano-particle.In nitrogen protection atmosphere, at 80 DEG C, it is slowly stirred lower addition The sodium alginate of 0.5wt% relative to ferriferrous oxide nano-particle quality continues stirring 60 minutes, obtains cladding alginic acid The aqueous suspension of the ferriferrous oxide nano-particle of sodium collects nano-particle with magnet, and drying is weighed.
Step 2, the preparation of reaction mixture.Relative to gross mass be 20wt% polymeric hydantoin mosanom and The ferriferrous oxide nano-particle of the above-mentioned cladding sodium alginate of 2.5wt% is added to the sub- liquid of 1- methyl imidazolium tetrafluoroborates In, and the initiator ammonium persulfate for being 2.5wt% relative to the mass fraction of polymeric hydantoin mosanom is added, it is uniformly mixed and obtains Mixed liquor.
Step 3, the preparation of nano combined ionic liquid gel.Mixed liquor is poured into the glass board mould for accompanying silica gel pad In, it is placed in insulating box and heats 1 hour, the nano combined ionic liquid being prepared into doped with ferriferrous oxide nano-particle coagulates Glue;It is with excellent mechanical property and free forming performance, as shown in the 1e and 1f of Fig. 1.
Extension test is carried out to the nano combined ionic liquid gel of the gained of dumbbell shaped with electronic tensile machine, such as the 2a of Fig. 2 It is shown.Nano combined ionic liquid gel can be stretched to 14 times of former length, and tensile break strength reaches 40kPa.Use knife blade This nano combined ionic liquid gel is cut off, at room temperature after selfreparing 4h, repairing performance test is carried out with electronic tensile machine, This nano combined ionic liquid gel can complete 90.9% tensile stress selfreparing and 92.86% tensile elongation is reviewed one's lessons by oneself It is multiple.By sensor application on balloon, there is good response to the expansion of balloon.With the expansion of balloon, the resistance of sensor It becomes larger, and then the expansion of balloon volume can be assessed, as shown in the 2b of Fig. 2.
Embodiment 2
A kind of high preparation process for stretching selfreparing multifunctional nano compound ion liquid gel rubber material of the present invention is as follows:
Step 1, the cladding of ferriferrous oxide nano-particle.In nitrogen protection atmosphere, at 80 DEG C, it is slowly stirred lower addition The polyvinyl acetate of 1wt% relative to ferriferrous oxide nano-particle quality continues stirring 60 minutes, obtains cladding poly-vinegar The aqueous suspension of the ferriferrous oxide nano-particle of vinyl acetate collects nano-particle with magnet, and drying is weighed.
Step 2, the preparation of reaction mixture.The high polymer monomer acetic acid second that the content relative to gross mass is 30wt% The ferriferrous oxide nano-particle of the above-mentioned cladding polyvinyl acetate of enester and 1.5wt% is added to 1- ethyl -2,3- diformazans In base imidazoles toluenesulfonate ionic liquid, and it is 5wt% to be added relative to the mass fraction of macromolecule vinylacetate Initiator methyl benzoylformate, be uniformly mixed obtain mixed liquor.
Step 3, the preparation of nano combined ionic liquid gel.Mixed liquor is poured into the glass board mould for accompanying silica gel pad In, ultraviolet lighting 7 hours is prepared into the nano combined ionic liquid gel doped with ferriferrous oxide nano-particle;
The 3a institutes of extension test such as Fig. 3 are carried out to the nano combined ionic liquid gel of the gained of dumbbell shaped with electronic tensile machine Show, nano combined ionic liquid gel can be stretched to 11 times of former length, and tensile break strength reaches 71.3kPa.Use knife blade This nano combined ionic liquid gel is cut off, at room temperature after selfreparing 4h, self-healing properties survey is carried out with electronic tensile machine Examination, this nano combined ionic liquid gel can complete 70.46% tensile stress selfreparing and 75.4% tensile elongation certainly It repairs.Applied on finger, also there is response very to digital flexion.Finger bends different angles, different resistance occurs and becomes Change, and then good response is made to the bending degree of finger, as shown in the 3b of Fig. 3.
Embodiment 3
A kind of high preparation process for stretching selfreparing multifunctional nano compound ion liquid gel rubber material of the present invention is as follows:
Step 1, the cladding of ferriferrous oxide nano-particle.In nitrogen protection atmosphere, at 80 DEG C, it is slowly stirred lower addition The polymethylacrylic acid of 5wt% relative to ferriferrous oxide nano-particle quality continues stirring 60 minutes, obtains coating poly- first The aqueous suspension of the ferriferrous oxide nano-particle of base acrylic acid collects nano-particle with magnet, and drying is weighed.
Step 2, the preparation of reaction mixture.Relative to gross mass be 40wt% macromolecule methacrylic acid and The ferriferrous oxide nano-particle of the above-mentioned cladding polymethylacrylic acid of 9wt% is added to 1- hydroxyl butyl -2,3- methylimidazoles In the sub- liquid of bromide, and the initiator sodium peroxydisulfate for being 0.5wt% relative to the mass fraction of macromolecule methacrylic acid is added, It is uniformly mixed and obtains mixed liquor.
Step 3, the preparation of nano combined ionic liquid gel.Mixed liquor is poured into the glass board mould for accompanying silica gel pad In, it is placed in insulating box and heats 1 hour, the nano combined ionic liquid being prepared into doped with ferriferrous oxide nano-particle coagulates Glue;
Extension test is carried out to the nano combined ionic liquid gel adhesion strength of the gained of dumbbell shaped with electronic tensile machine, such as The 4a of Fig. 4,4b, shown in 4c.Nano combined ionic liquid gel is 207.4 ± 24.98N/m, nanometer to the adhesion strength of PDMS Compound ion liquid gel is 347.3 ± 6.97N/m to the adhesion strength of Cu pieces.Increasing strain, the brightness of LED light is dimmed, this Show the sensing capability in strain path of the sensor.This nano combined ionic liquid gel is cut off with knife blade 20 times, the conductivity of self-healing sample is restored to the 4e of conductivity such as Fig. 4 of raw sample in 0.5s, shown in 4f..
Embodiment 4
A kind of high preparation process for stretching selfreparing multifunctional nano compound ion liquid gel rubber material of the present invention is as follows:
Step 1, the cladding of ferriferrous oxide nano-particle.In nitrogen protection atmosphere, at 80 DEG C, it is slowly stirred lower addition The polyacrylamide of 4wt% relative to ferriferrous oxide nano-particle quality continues stirring 60 minutes, obtains cladding polypropylene The aqueous suspension of the ferriferrous oxide nano-particle of amide collects nano-particle with magnet, and drying is weighed.
Step 2, the preparation of reaction mixture.Relative to gross mass be 35wt% high polymer polyacrylamide and The ferriferrous oxide nano-particle of the above-mentioned cladding polyacrylamide of 19wt% is added to 1- vinyl -3- methylimidazole cdicynanmides In salt liquid, and the initiator alkyl salt compounded of iodine for being 7wt% relative to the mass fraction of macromolecule acrylamide, mixing is added Uniformly obtain mixed liquor.
Step 3, the preparation of nano combined ionic liquid gel.Mixed liquor is poured into the glass board mould for accompanying silica gel pad In, ultraviolet lighting 13 hours is prepared into the nano combined ionic liquid gel doped with ferriferrous oxide nano-particle;
It is self-assembled into stress strain gauge with the nano combined ionic liquid gel of gained, strain is cured less than 800% gel It is respectively 3.82 and 3.96 to close front and back GF;Strain is located at 800%-1000%, and the front and back GF of gel healing is respectively 19.6 Hes 20.2 as shown in the 5a of Fig. 5.Compared to other, ionic liquid gel be self-assembled into stress strain gauge have very high sensitivity and The 5b of prodigious deformation such as Fig. 5, shown in 5c.By sensor application on balloon, there is good response to the expansion of balloon, applies In the 5d on finger, also having such as Fig. 5 of response very to digital flexion, shown in 5e.
In more embodiments, the polymer of coated ferriferrous oxide can also be polyvinyl alcohol, polyacrylic acid, poly- methyl Hydroxy-ethyl acrylate, polyacrylonitrile, polystyrene, polyvinylpyrrolidone etc..High polymer monomer be not limited to alginate, Vinylacetate, methacrylic acid, acrylamide can also be other kin carboxylic-acid substances, such as acrylic acid, third Olefin(e) acid butyl ester, ethyl acrylate, acrylonitrile, styrene, vinyl pyrrolidone, hydroxyethyl methacrylate etc..Ionic liquid Solvent can also be its alloytype ionic liquid, for example, 1- ethyl-3-methylimidazole ethyl-sulfates salt, N- ethylpyridines bromide, N- Ethyl -3- picolines hexafluorophosphate, ethyl triphenyl phosphine perchlorate, tetrabutylammonium fluoroform sulphonate, N- ethyls, first Base pyrrolidines rhodanate, N- ethyls, methyl piperidine disulfate, 1- benzyl -3- methylimidazoles hexafluorophosphate, 1- sulphurs third Base -3- methylimidazoles inner salt, 1- carboxymethyl -3- methylimidazole bis-trifluoromethylsulfoandimides salt, methyl quaternary ammonium glycine ionic liquid Body etc..
The present invention be for the first time prepare while having both high stretch and self-repairability ionic liquid gel material and This multifunctional ion liquid gel rubber material also has magnetic responsiveness, electric conductivity and anti-flammability and wide temperature operation interval.It should be from Sub- liquid gel material has broad application prospects in flexible electronic field.
It is as follows the present invention also provides the strain transducer based on such material:
The nano combined ionic liquid gel is cut into strip as pressure resistance type strain transducer, material is occurring During strain, respective change can occur for relative resistance, and the mechanical deformation of sensed object is used for this.
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that:Its according to So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into Row equivalent replacement;And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (10)

1. a kind of nano combined ionic liquid gel material, which is characterized in that including ferriferrous oxide nano-particle and polymer, Wherein, polymer can form dynamic reversible coordinate bond with Fe (III) ion on ferriferrous oxide nano-particle surface.
2. nano combined ionic liquid gel material according to claim 1, which is characterized in that the polymer is four oxidations 0.1wt%~10wt% of three-iron nanoparticle content.
3. the preparation method of nano combined ionic liquid gel material described in claim 1, which is characterized in that including walking as follows Suddenly:
Step 1, the cladding of ferriferrous oxide nano-particle
It in inert gas shielding atmosphere, heats and is slowly stirred down, in the aqueous suspension of ferriferrous oxide nano-particle Polymer is added, continues heating stirring and obtains the ferriferrous oxide nano-particle aqueous suspension of coated polymer, received with magnet Collect nano-particle, drying is weighed;
Step 2, the preparation of reaction mixture
The ferriferrous oxide nano-particle for the coated polymer that high polymer monomer, initiator and step 1 obtain is added to ion In liquid, it is uniformly mixed and obtains mixed liquor;
Step 3, the preparation of nano combined ionic liquid gel
Mixed liquor is poured into glass board mould, ultraviolet irradiation or heating are prepared doped with ferriferrous oxide nano-particle Nano combined ionic liquid gel material.
4. the preparation method of nano combined ionic liquid gel material according to claim 3, which is characterized in that the polymerization Object is alginate, polyacrylamide (PAM), polyvinyl alcohol (PVA), polymethylacrylic acid (PMAA), polymethylacrylic acid hydroxyl Ethyl ester (PHEMA), polyvinyl acetate (PVAc), polyacrylonitrile (PAN), polystyrene (PS) or polyvinylpyrrolidone (PVP)。
5. the preparation method of nano combined ionic liquid gel material according to claim 3, which is characterized in that the high score Sub- monomer is alginate (alginate, Alg), acrylamide (acrylamide, AAm), methacrylic acid (methacrylic acid, MAA), 2- Methacrylamides (2-methylacrylamide, MAA), acrylic acid (acrylic Acid, AA), butyl acrylate (n-butyl acrylate, BA), ethyl acrylate (Ethyl Acrylate, AA), isopropyl Acrylamide (N-isopropylacrylamide, NIPAm), hydroxyethyl methacrylate (hydroxyethyl Methacrylate, HEMA), acrylonitrile (acrylonitrile, AN), styrene (styrene, ST) or N- vinyl pyrroles Alkanone (N-Vinyl-2-pyrrolidone, NVP).
6. the preparation method of nano combined ionic liquid gel material according to claim 3, which is characterized in that the ion Liquid is glyoxaline ion liquid, pyridine type ionic liquid, quaternary phosphonium salt ionic liquid, ion liquid of quaternaries, pyrrolidines Class ionic liquid, piperidines ionic liquid, the ionic liquid with benzyl, sulfonic acid base class ionic liquid, hydroxy kind ionic liquid, carboxylic Base class ionic liquid, alkenyl class ionic liquid, halogen ionic liquid, tetrafluoroborate class ionic liquid, hexafluoro-phosphate radical class Ionic liquid or amino acid ion liquid;The initiator is ammonium persulfate, potassium peroxydisulfate, sodium peroxydisulfate, 2- hydroxyl -2- first Base -1- phenylacetones, methyl benzoylformate or alkyl salt compounded of iodine.
7. special according to the preparation method of nano combined ionic liquid gel material described in claim 3~6 any claim Sign is, in the step 1, the dosage of polymer is 0.1wt%~10wt% of ferriferrous oxide nano-particle, the step In 2, high polymer monomer dosage is 1wt%~50wt% of nano combined ionic liquid gel material, four oxygen of coated polymer Change 0.1wt%~30wt% that three Fe nanometer particles dosages are nano combined ionic liquid gel material, initiator amount is height 0.01wt%~10wt% of molecule monomer, the dosage of ionic liquid are the 10wt%- of nano combined ionic liquid gel material 90wt%.
8. the strain transducer based on nano combined ionic liquid gel material described in claim 1.
9. the strain transducer of nano combined ionic liquid gel material according to claim 8, which is characterized in that by nanometer Compound ion liquid gel is cut into required shape, and is adhesively joined with electrode material.
10. application of the nano combined ionic liquid gel material in terms of flexible electronic field described in claim 1.
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