CN103413622B - The preparation method of a kind of compliant conductive PDMS of photothermal response - Google Patents
The preparation method of a kind of compliant conductive PDMS of photothermal response Download PDFInfo
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- CN103413622B CN103413622B CN201310320964.XA CN201310320964A CN103413622B CN 103413622 B CN103413622 B CN 103413622B CN 201310320964 A CN201310320964 A CN 201310320964A CN 103413622 B CN103413622 B CN 103413622B
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Abstract
The preparation method who the present invention relates to a kind of compliant conductive PDMS of photothermal response, comprising: (1) is dispersed in Au nanometer rods in DMS liquid uniformly, obtains Au-DMS solution; (2) be dispersed in absolute ethyl alcohol ultrasonic Ag nano wire, obtain Ag-alcohol dispersion liquid; (3) make successively water, ethanol PU be carried out to surface treatment, the PU that obtains processing; (4) PU processing is flooded and lifted in above-mentioned Ag-alcohol dispersion liquid, then dry processing, obtains Ag-PU compound; (5) Au-DMS solution is carried out to heat chemistry polymerization with above-mentioned Ag-PU compound, obtain the compliant conductive PDMS of photothermal response. Preparation method of the present invention is simple, and energy consumption is low, reproducible; The conduction PDMS of prepared photothermal response characteristic has intelligent response characteristic and good electrical conductance, and physicochemical properties are stable, have a extensive future.
Description
Technical field
The invention belongs to the preparation field of the conducing composite material of intelligent response, particularly a kind of compliant conductive of photothermal responseThe preparation method of PDMS.
Background technology
Intelligent response conducing composite material is because it has intelligent response characteristic and good electrical conductance simultaneously, electronic device,The fields such as intelligent apparatus have application very widely. And flexible conducting material is because it has good collapsible performance and anti-Bending performance is more attractive in novel foldable electronic device. Realize flexible conducting material simple, fast of intelligent responseSpeed preparation tool in scientific research and industrial production is of great significance.
Photothermal response characteristic refers under the light source of specific wavelength irradiates, can realize the controlled conversion of light and heat, photothermal responseThe fields such as characteristic is opened the light in intelligence, long-range heating show remarkable advantage. With respect to traditional mode of heating, the light of materialThermal response characteristics can be realized the controlled heating of microcell, and without external heat source. Therefore, realization economy, easy photo-thermal turnChange in the field such as microanalysis, intelligent device and be of great significance with regard to tool. The people such as Fang (Adv.Mater., 2012,24,94.)Prepare a kind of can be to the photo-thermal conversion micro-fluidic chip of specific wavelength laser response, this chip can be realized long-range light-operatedHeating. The people such as Yu (Adv.Funct.Mater., 2012,22,4011.) prepare a kind of graphene-based light of infrared optical responseThermal response polymer, can realize photo-thermal conversion fast and in intelligent gel switch, show excellent performance.
Flexible conducting material is because it still can keep excellent electrical conductance under bending condition, therefore at flexible electronic deviceThe fields such as part, artificial skin, electronic sensor have very important application. And PDMS is because it has good thermoplasticProperty, bent performance and excellent machinability, thereby receive much concern in flexible conducting material field. People (the Nat. such as ChengMater., 2011,10,424.) construct the grapheme foam-PDMS compound except three-dimensional communication, even situation about bendingUnder also shown good electrical conductance. The people such as Jeon (Nat.Commun., 2012,3,196.) adopt near-field nanometer printingMethod liquid congruent melting gallium-indium compound is incorporated in the microchannel of PDMS, even if this elastic conductor is in deformation 200%Situation under still shown the electrical conductance of superelevation (electrical conductivity be about 24100S/cm-1). But prepared PDMS at presentAlthough base conducting polymer can be realized electric conductivity good under bending condition, its body phase function singleness (only hasElectrical conductance), be also difficult to meet the demand of following artificial intelligent electronic device intelligent development. Therefore be the PDMS of compliant conductiveGiving intelligent response characteristic is of great significance tool. And photothermal response characteristic is due to its unique advantage, by it with softProperty conducting polymer combination, will produce great pushing effect for the development of Novel light-operated intelligent electronic device etc. At present alsoHave no the report of preparing photothermal response compliant conductive PDMS.
Summary of the invention
Technical problem to be solved by this invention is to provide the preparation method of a kind of compliant conductive PDMS of photothermal response, the partyLegal system is standby simple, and energy consumption is low, reproducible, can realize quick, the simple preparation of product, is easy to suitability for industrialized production; MadeThe standby compliant conductive PDMS with photothermal response characteristic has intelligent response characteristic and good electrical conductance, and physical chemistryStable in properties will have important application in the fields such as flexible electronic intelligent device.
The preparation method of the compliant conductive PDMS of a kind of photothermal response of the present invention, comprising:
(1) at room temperature, Au nanometer rods is dispersed in dimethyl siloxane DMS liquid uniformly, and carries out ultrasonic processing,Obtain having the Au-DMS solution of good photothermal response characteristic;
(2) at room temperature, be dispersed in absolute ethyl alcohol having compared with the Ag nano wire of big L/D ratio is ultrasonic, obtain Ag-ethanol and divideLoose liquid;
(3), under room temperature, under ultrasound condition, make successively water, ethanol carry out the commercial polyurethane (PU) with microcellular structureSurface treatment, and be dried the PU that obtains processing at 70-90 DEG C;
(4) PU processing is flooded and lifted in above-mentioned Ag-alcohol dispersion liquid, then dry processing, repeated impregnationsLift-be dried 3-5 time, obtain having the Ag-PU compound of good conductive properties;
(5) the Au-DMS solution with photothermal response characteristic step (1) being obtained is with the above-mentioned Ag-PU with good electrical conductanceCompound carries out heat chemistry polymerization, obtains the compliant conductive PDMS of photothermal response.
The Au nanometer rods length of the Au-DMS solution in described step (1) is 100～300nm, and concentration is 2～5mg/ml.
The draw ratio of the Ag nano wire in described step (2) is 5:1～30:1, and its concentration in absolute ethyl alcohol is 10～25mg/ml。
The ultrasonic processing time in described step (3) is 30～60min.
It is 30～150s that dipping in described step (4) lifts the time, and speed is 1～2cm/min.
The temperature of the heat chemistry polymerization in described step (5) is 45～65 DEG C.
The present invention is by regulating the concentration of Au nanometer rods and kind, the concentration of Ag nano wire, speed and the time that dipping liftsAnd heat chemistry polymerization temperature, can obtain the compliant conductive PDMS of different types of photothermal response.
The present invention combines the material of intelligent response with the PDMS of compliant conductive, prepared a kind of novel light that hasThe compliant conductive PDMS of thermal response characteristics. Because photothermal response characteristic is at intelligent switch, the fields such as long-range heating have importantApply, will further expand the application of compliant conductive PDMS, in flexible intelligent electronic device, show goodPerformance.
Beneficial effect:
(1) method of the present invention is simple to operate, and energy consumption is low, reproducible, can realize quick, the simple preparation of product, is easy toSuitability for industrialized production;
(2) the compliant conductive PDMS of photothermal response characteristic that what the present invention was prepared have has intelligent response characteristic and good electrical is ledProperty, and physicochemical properties are stable, in the fields such as flexible electronic device, have important application.
Brief description of the drawings
Fig. 1 is the stereoscan photograph that embodiment 1 prepares Ag nano wire;
Fig. 2 is the stereoscan photograph that embodiment 1 prepares Ag-PU compound;
Fig. 3 is the electric performance test digital photograph that embodiment 1 prepares Ag-PU compound;
Fig. 4 is the photo-thermal test image of the compliant conductive PDMS of the photothermal response prepared of embodiment 2;
Fig. 5 is the digital photograph of the compliant conductive PDMS of the photothermal response prepared of embodiment 3.
Detailed description of the invention
Below in conjunction with specific embodiment, further set forth the present invention. Should be understood that these embodiment are only for illustrating the present inventionLimit the scope of the invention and be not used in. In addition should be understood that after having read the content of the present invention's instruction art technologyPersonnel can make various changes or modifications the present invention, and these equivalent form of values fall within equally the application's appended claims and limitFixed scope.
Embodiment 1
At room temperature, prepare the Au nanometer rods that length is about 100nm, and be dispersed in DMS solution, ultrasonicAfter processing, obtain concentration and be about the good photothermal response characteristic of having of 2mg/ml Au-DMS solution. At room temperature, by instituteThe draw ratio of preparation is about ultrasonic being dispersed in absolute ethyl alcohol of Ag nano wire of 30:1, obtains concentration and is about 10mg/ml'sAg-alcohol dispersion liquid. Under room temperature, under ultrasound condition, make successively water, ethanol carry out surface to the PU with microcellular structureProcess 30min, and be dried in the baking oven of 70 DEG C. Use dipping lifting instrument by the PU processing preparedIn Ag-alcohol dispersion liquid, flood and lift, the time is 30s, and speed is 1cm/min, obtains having good conductive propertiesAg-PU compound. Under 45 DEG C of conditions, the prepared Au-DMS solution with photothermal response characteristic is good with havingThe Ag-PU compound of good electrical conductance carries out heat chemistry polymerization, obtains having the compliant conductive PDMS of good photothermal response characteristicCompound.
Fig. 1 is the stereoscan photograph of preparation Ag nano wire, can see: the draw ratio of Ag nano wire is about 30:1, andAnd appearance and size homogeneous.
Fig. 2 is the stereoscan photograph of preparation Ag-PU compound, can see: in Ag-PU compound, Ag is completely coatedOn the surface of PU skeleton, and form continuous phase structure.
Fig. 3 is the electric performance test digital photograph of preparation Ag-PU compound, can see: preparation Ag-PU compound toolThere is good electrical conductance.
Embodiment 2
At room temperature, prepare the Au nanometer rods that length is about 200nm, and be dispersed in DMS solution, ultrasonicAfter processing, obtain concentration and be about the good photothermal response characteristic of having of 2mg/ml Au-DMS solution. At room temperature, by instituteThe draw ratio of preparation is about ultrasonic being dispersed in absolute ethyl alcohol of Ag nano wire of 20:1, obtains concentration and is about 10mg/ml'sAg-alcohol dispersion liquid. Under room temperature, under ultrasound condition, make successively water, ethanol carry out surface to the PU with microcellular structureProcess 60min, and be dried in the baking oven of 90 DEG C. Use dipping lifting instrument by the PU processing preparedIn Ag-alcohol dispersion liquid, flood and lift, the time is 60s, and speed is 1.5cm/min, obtains having good conductive propertiesAg-PU compound. Under 50 DEG C of conditions, have same the prepared Au-DMS solution with photothermal response characteristicThe Ag-PU compound of good electrical conductance carries out heat chemistry polymerization, obtains having the compliant conductive of good photothermal response characteristicPDMS compound.
Fig. 4 is the photo-thermal test image of preparing the compliant conductive PDMS of photothermal response, can see: under room temperature condition(25 DEG C), the in the situation that of Ear Mucosa Treated by He Ne Laser Irradiation 30s, its temperature can rise to 45 DEG C, shows that it has good photo-thermalResponse characteristic.
Embodiment 3
At room temperature, prepare the Au nanometer rods that length is about 300nm, and be dispersed in DMS solution, ultrasonicAfter processing, obtain concentration and be about the good photothermal response characteristic of having of 2mg/ml Au-DMS solution. At room temperature, by instituteThe draw ratio of preparation is about ultrasonic being dispersed in absolute ethyl alcohol of Ag nano wire of 5:1, obtains the Ag-that concentration is about 10mg/mlAlcohol dispersion liquid. Under room temperature, under ultrasound condition, make successively water, ethanol carry out surface to the PU with microcellular structureReason 60min, and be dried in the baking oven of 80 DEG C. Use dipping lifting instrument by the PU processing at prepared Ag-In alcohol dispersion liquid, flood and lift, the time is 150s, and speed is 2cm/min, obtains having good conductive propertiesAg-PU compound. Under 65 DEG C of conditions, the prepared Au-DMS solution with photothermal response characteristic is good with havingThe Ag-PU compound of good electrical conductance carries out heat chemistry polymerization, obtains having the compliant conductive PDMS of good photothermal response characteristicCompound.
Fig. 5 is the digital photograph of the compliant conductive PDMS of photothermal response, can see: it has good light transmittance, canAct on a kind of transparent photothermal response flexible conducting material.
Claims (5)
1. a preparation method of the compliant conductive PDMS of photothermal response, comprising:
(1) at room temperature, Au nanometer rods is dispersed in DMS liquid uniformly, and carries out ultrasonic processing, obtain Au-DMSSolution; Wherein, the Au nanometer rods length of Au-DMS solution is 100～300nm, and concentration is 2～5mg/ml;
(2) at room temperature, be dispersed in absolute ethyl alcohol ultrasonic Ag nano wire, obtain Ag-alcohol dispersion liquid;
(3), under room temperature, under ultrasound condition, make successively water, ethanol carry out surface to the commercial polyurethane PU with microcellular structureReason, and be dried the PU that obtains processing at 70-90 DEG C;
(4) PU processing is flooded and lifted in above-mentioned Ag-alcohol dispersion liquid, then dry processing, repeated impregnations is carriedDraw-be dried 3-5 time, obtain Ag-PU compound;
(5) Au-DMS solution step (1) being obtained carries out heat chemistry polymerization with above-mentioned Ag-PU compound, obtains photothermal responseCompliant conductive PDMS.
2. the preparation method of the compliant conductive PDMS of a kind of photothermal response according to claim 1, is characterized in that:The draw ratio of the Ag nano wire in described step (2) is 5:1～30:1, and its concentration in absolute ethyl alcohol is 10～25mg/ml.
3. the preparation method of the compliant conductive PDMS of a kind of photothermal response according to claim 1, is characterized in that:The ultrasonic processing time in described step (3) is 30～60min.
4. the preparation method of the compliant conductive PDMS of a kind of photothermal response according to claim 1, is characterized in that:It is 30～150s that dipping in described step (4) lifts the time, and speed is 1～2cm/min.
5. the preparation method of the compliant conductive PDMS of a kind of photothermal response according to claim 1, is characterized in that:The temperature of the heat chemistry polymerization in described step (5) is 45～65 DEG C.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102087884A (en) * | 2009-12-08 | 2011-06-08 | 中国科学院福建物质结构研究所 | Flexible transparent conductive film based on organic polymers and silver nanowires and preparation method thereof |
| CN102627784A (en) * | 2012-04-06 | 2012-08-08 | 中国科学院化学研究所 | Method for preparing metal-PDMS (Polydimethylsiloxane) composite material |
| CN102952524A (en) * | 2012-03-01 | 2013-03-06 | 纳米籽有限公司 | Micro-domain photothermal composite material and preparation method thereof |
| CN103050192A (en) * | 2012-12-20 | 2013-04-17 | 中国科学技术大学 | Elastic conductor based on silver nanowire as well as preparation method and application thereof |
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| US8243358B2 (en) * | 2006-11-24 | 2012-08-14 | The Hong Kong University Of Science & Technology | Constructing planar and three-dimensional microstructures with PDMS-based conducting composite |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102087884A (en) * | 2009-12-08 | 2011-06-08 | 中国科学院福建物质结构研究所 | Flexible transparent conductive film based on organic polymers and silver nanowires and preparation method thereof |
| CN102952524A (en) * | 2012-03-01 | 2013-03-06 | 纳米籽有限公司 | Micro-domain photothermal composite material and preparation method thereof |
| CN102627784A (en) * | 2012-04-06 | 2012-08-08 | 中国科学院化学研究所 | Method for preparing metal-PDMS (Polydimethylsiloxane) composite material |
| CN103050192A (en) * | 2012-12-20 | 2013-04-17 | 中国科学技术大学 | Elastic conductor based on silver nanowire as well as preparation method and application thereof |
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