CN104979467A - Preparation method of electromechanical transduction material with composite structure - Google Patents
Preparation method of electromechanical transduction material with composite structure Download PDFInfo
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Abstract
The invention relates to a preparation method of an electromechanical transduction material with a composite structure. The method comprises: preparing a corrugated polymer film from a polymer by a thermoplastic process, a casting process or an imprinting process; then covering one surface of the corrugated polymer film with a conductive electrode; charging a free surface, which is not covered by the conductive electrode, of the corrugated polymer film; and sticking a protruding part of of the charged free surface of the corrugated polymer film to a conductive film so as to obtain the electromechanical transduction material with the composite structure. The finished product of the electromechanical transduction material with the composite structure has some properties of piezoelectric materials and can realize the conversion between mechanical energy and electric energy. Compared with the prior art, the preparation method provided by the invention is simple, and the prepared electromechanical transduction material with the composite structure is excellent in electromechanical coupling performance and smaller in overall thickness and can be applied to the fields of smart clothing, environmental vibration energy collectors, biological kinetic energy collectors, acoustoelectric sensors, robot skin, smart structures and the like.
Description
Technical field
The invention belongs to technical field of function materials, relate to a kind of preparation method that can realize the composite construction electromechanical transducing material that mechanical energy and electric energy are changed mutually.
Background technology
Transducer is a kind of energy conversion device, a kind of energy of form can be changed into the energy of another kind of form.These form of energy include, but is not limited to electric energy, mechanical energy, electromagnetic energy (comprising luminous energy), chemical energy, acoustic energy and heat energy.And in transducer, namely what play a crucial role is transductive material.At present, in ambient vibration energy collecting device and biological kinetic energy energy collecting device, the transductive material of extensive use is piezoelectric (comprising piezoelectric ceramic and ferroelectric polymers).Piezoelectric is a kind of electromechanical transducing material, can realize the conversion between mechanical energy and electric energy.
Piezoelectric can be divided into inorganic piezoelectric material again, organic piezoelectric materials and composite piezoelectric material, it can realize the conversion between mechanical energy and electric energy, its operation principle is: if apply pressure to piezoelectric, it just can produce potential difference (being referred to as direct piezoelectric effect), otherwise applying voltage, then produce mechanical stress (being called inverse piezoelectric effect), that is piezoelectric can produce electric field because of mechanical deformation, also mechanical deformation can be produced because of electric field action, this intrinsic electro-mechanical coupling effect makes piezoelectric be widely used in engineering, now be widely used in various acoustoelectric sensor, mechanics sensor, the fields such as vibrational energy collection.
At present, method for the preparation of electromechanical transducing material has a lot, application number is that the Chinese invention patent of 200810067783.X discloses a kind of piezo-electricity composite material and preparation method thereof, this piezo-electricity composite material comprises filler and at least two layers of piezoelectric material, according to the polarity of each layer of piezo-electric material, adjacent layer piezoelectric is oppositely arranged, and each layer of piezo-electric material three-dimensional communication is arranged, described filler one dimension connect device; At each working face of described piezo-electricity composite material, arrange working face electrode respectively, in the cross section being parallel to described piezo-electricity composite material working face, the form that described piezoelectric combines with regular bar shaped is communicated with setting, and described filler isolation is arranged.
But the existing method for the preparation of transductive material often step is comparatively complicated, and process regulation is comparatively loaded down with trivial details, and method limitation is comparatively large, can not meet diversified duty requirements, and this directly can limit promoting the use of of transductive material.
Summary of the invention
Object of the present invention is exactly provide a kind of step simple to overcome defect that above-mentioned prior art exists, easy to operate, can obtain the method for the preparation of composite construction electromechanical transducing material of excellent mechanical-electric coupling performance.
Object of the present invention can be achieved through the following technical solutions:
A kind of method for the preparation of composite construction electromechanical transducing material, the method is that polymer is made waveform polymer film by thermoplastic processes, pouring technology or imprint process, then conductive electrode is covered on a surface of waveform polymer film, and charge to the scope of freedom that waveform polymer film does not cover conductive electrode, ledge and the conducting film on the scope of freedom after being charged by waveform polymer film are again bonded together, and namely make described composite construction electromechanical transducing material.
Wherein, described thermoplastic processes, pouring technology, imprint process are known prior art.
For the preparation of a method for composite construction electromechanical transducing material, it is characterized in that, specifically comprise the following steps:
(1) polymer is made waveform polymer film by thermoplastic processes, pouring technology or imprint process;
(2) conductive electrode is covered on a surface of the obtained waveform polymer film of step (1);
(3) charge in the scope of freedom not covering conductive electrode to step (2) medium wave shape wave polymer film;
(4) ledge and the conducting film on the scope of freedom after being charged by step (3) medium wave shape wave polymer film are bonded together, i.e. obtained described composite construction electromechanical transducing material.
For the preparation of a method for composite construction electromechanical transducing material, it is characterized in that, specifically comprise the following steps:
(A) polymer is made waveform polymer film by thermoplastic processes, pouring technology or imprint process;
(B) obtained to step (A) waveform polymer film charges;
(C) after step (B) charging terminates, conductive electrode is covered on the uncharged surface of waveform polymer film with electric charge;
(D) ledge and the conducting film on the scope of freedom after being charged by step (C) medium wave shape wave polymer film are bonded together, i.e. obtained described composite construction electromechanical transducing material.
For the preparation of a method for composite construction electromechanical transducing material, it is characterized in that, specifically comprise the following steps:
A polymer is made waveform polymer film by thermoplastic processes, pouring technology or imprint process by ();
B conductive electrode covers on a surface of the obtained waveform polymer film of step (a) by ();
C () step (b) medium wave shape wave polymer film is not covered ledge on the scope of freedom of conductive electrode and conducting film is bonded together, obtained composite construction film;
D () applies direct current (DC) biases to two electrodes of the obtained composite construction film of step (c) and charges, i.e. obtained described composite construction electromechanical transducing material.
Described polymer comprises the one in polytetrafluoroethylene (PTFE), fluorinated ethylene propylene copolymer (FEP), cyclic olefin polymer, PETG (PET), polyimides (PI), polyethylene (PE), polypropylene (PP) or PEN (PEN).
Described conductive electrode material comprises the one in aluminium, gold, silver, graphite or Graphene.
The covering method of described conductive electrode comprises the one in vacuum evaporation, silk screen printing, magnetron sputtering or conductive tape bonding.
Described waveform polymer film does not cover the ledge coating adhesive or arrange double-sided sticky tape on the scope of freedom of conductive electrode, and the described waveform polymer film scope of freedom that do not cover conductive electrode is bonded together by adhesive or double-sided sticky tape and conducting film.
Described conducting film comprises the one in aluminium foil, Copper Foil, aluminium sheet, copper coin, corrosion resistant plate, conductive polymer membrane or conductive composite film.
The method of described charging is the one in Corona polar method, contact charging method, ion implantation or electron beam injection method.
The present invention is adopted to prepare the finished product composite construction electromechanical transducing material of gained, there is the performance of part piezoelectric, the conversion between mechanical energy and electric energy can be realized, can be applicable to the fields such as intelligent clothing, ambient vibration energy collecting device, biological kinetic energy energy collecting device, acoustoelectric sensor, robot skin, intelligent structure.
Compared with prior art, the present invention has following characteristics:
1) preparation method of the present invention is simple, and simultaneously obtained composite construction electromechanical transducing material has excellent mechanical-electric coupling performance;
2) the composite construction electromechanical transducing material monolithic thickness that obtains of the present invention is less, can be applied to the fields such as intelligent clothing, ambient vibration energy collecting device, biological kinetic energy energy collecting device, acoustoelectric sensor, robot skin, intelligent structure;
3) transform raw material of cheapness can be become to have the electromechanical transducing material of high added value by the present invention.
Accompanying drawing explanation
Fig. 1 is that embodiment 1 prepares the structural representation of gained based on the composite construction electromechanical transducing material of fep film;
Fig. 2 is that embodiment 1 prepares the CHARGE DISTRIBUTION schematic diagram of gained based on the composite construction electromechanical transducing material of fep film;
Description of reference numerals:
1-conducting film, 2-waveform polymer film, 3-conductive electrode.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment is implemented premised on technical solution of the present invention, give detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1:
As shown in Figure 1-2, the present embodiment preparation, based on the composite construction electromechanical transducing material of fep film, specifically comprises the following steps:
(1) first fluted copper template at quarter is placed on the metallic plate of hot press, then in template, the thick FEP film of 12.5um is placed successively and thickness is the rubber blanket of 1mm, hot pressing 5min under 100 DEG C of pressure with 2MPa, then cold pressing 10min under 20 DEG C and 2MPa, fep film is taken out, obtained FEP waveform polymer film 2 from template;
(2) the thick conductive electrode 3 of 100nm is covered in FEP waveform polymer film 2 one side by vacuum evaporation process;
(3) adopt Corona polar method to carry out corona charging to the scope of freedom that FEP waveform polymer film 2 does not cover conductive electrode 3, controlling corona voltage is-10kV, and the charging interval is 60s;
(4) double-sided sticky tape is set at the wave ledge on the scope of freedom not covering conductive electrode 3, and by double-sided sticky tape, the conducting film 1 that FEP waveform polymer film 2 and thickness are 0.4mm is bonded together, i.e. the obtained composite construction electromechanical transducing material based on fep film.
In the present embodiment, conductive electrode 3 is aluminium conductive electrode, conducting film 1 is copper coin, from prepare gained based on the composite construction electromechanical transducing material of fep film, cut out the circular sample that diameter is 20mm, when applying the active force of 0.5N on sample, on the electrode that electrometer detects, the changing value of charge inducing amount is 4465pC.
Embodiment 2:
The present embodiment preparation, based on the composite construction electromechanical transducing material of fep film, specifically comprises the following steps:
(1) be first that the Stainless Molding Board of the circular through hole of 2mm is placed on the thermoplastic machine side plate with vacuum system by being carved with diameter, then in template, place the FEP film that 12.5um is thick, open vacuum and far infrared heating system, control the temperature of fep film at 200 DEG C, the thermoplastic time is 2s, take out fep film from template, obtain the FEP waveform polymer film 2 with bulge-structure;
(2) in the one side of FEP waveform polymer film 2 containing sunk structure, the thick conductive electrode of 100nm is covered by vacuum evaporation process;
(3) adopt Corona polar method to carry out corona charging to the scope of freedom that FEP waveform polymer film 2 does not cover conductive electrode, controlling corona voltage is-10kV, and the charging interval is 60s;
(4) double-sided sticky tape is set at the wave protuberance on the scope of freedom not covering conductive electrode, and by double-sided sticky tape, the conducting film that FEP waveform polymer film 2 and thickness are 0.4mm is bonded together, i.e. the obtained composite construction electromechanical transducing material based on fep film.
In the present embodiment, conductive electrode 3 is aluminium conductive electrode, conducting film 1 is copper coin, from prepare gained based on the composite construction electromechanical transducing material of fep film, cut out the circular sample that diameter is 20mm, when applying the active force of 0.5N on sample, on the electrode that electrometer detects, the changing value of charge inducing amount is 835pC.
Embodiment 3:
The present embodiment preparation, based on the composite construction electromechanical transducing material of PTFE film, specifically comprises the following steps:
(A) PTFE polymer is made PTFE waveform polymer film 2 by pouring technology;
(B) obtained to step (A) PTFE waveform polymer film 2 charges;
(C) until step (B) charging terminate after, adopt magnetron sputtering technique conductive electrode 3 is covered with electric charge PTFE waveform polymer film 2 on the surface;
(D) scope of freedom and the conducting film 1 that PTFE waveform polymer film 2 in step (C) are not covered conductive electrode 3 are bonded together, i.e. the obtained described composite construction electromechanical transducing material based on PTFE film.
Wherein, the charging method in step (B) is ion implantation.
In the present embodiment, conducting film 1 is Copper Foil, and conductive electrode 3 is golden conductive electrode.
Embodiment 4:
The present embodiment preparation, based on the composite construction electromechanical transducing material of PET film, specifically comprises the following steps:
(A) pet polymer is made PET waveform polymer film 2 by pouring technology;
(B) obtained to step (A) PET waveform polymer film 2 charges;
(C) until step (B) charging terminate after, adopt silk-screen printing technique conductive electrode 3 is covered with electric charge PET waveform polymer film 2 on the surface;
(D) scope of freedom and the conducting film 1 that PET waveform polymer film 2 in step (C) are not covered conductive electrode 3 are bonded together, i.e. the obtained described composite construction electromechanical transducing material based on PET film.
Wherein, the charging method in step (B) is ion implantation.
In the present embodiment, conducting film 1 is conductive polymer membrane, and conductive electrode 3 is silver-colored conductive electrode.
Embodiment 5:
The present embodiment preparation, based on the composite construction electromechanical transducing material of COC film, specifically comprises the following steps:
(1) COC polymer is made COC waveform polymer film 2 by imprint process;
(2) conductive tape adhesion technique is adopted conductive electrode 3 to be covered the obtained COC waveform polymer film 2 of step (1) on the surface;
(3) charge to COC waveform polymer film 2 in the scope of freedom not covering conductive electrode 3 by the middle COC waveform polymer film 2 of step (2);
(4) scope of freedom and the conducting film 1 that the COC waveform polymer film 2 after step (3) charging are not covered conductive electrode 3 are bonded together, i.e. the obtained described composite construction electromechanical transducing material based on COC film.
Wherein, the charging method in step (3) is electron beam injection method.
In the present embodiment, conducting film 1 is conductive composite film, and conductive electrode 3 is graphite electrode.
Embodiment 6:
The present embodiment preparation, based on the composite construction electromechanical transducing material of PE film, specifically comprises the following steps:
(1) PE polymer is made PE waveform polymer film 2 by thermoplastic processes;
(2) conducting resinl adhesion technique is adopted conductive electrode 3 to be covered the obtained PE waveform polymer film 2 of step (1) on the surface;
(3) charge to PE waveform polymer film 2 in the scope of freedom not covering conductive electrode 3 by the middle PE waveform polymer film 2 of step (2);
(4) scope of freedom and the aluminium foil 1 that the PE waveform polymer film 2 after step (3) charging are not covered conductive electrode 3 are bonded together, i.e. the obtained described composite construction electromechanical transducing material based on PE film.
Wherein, the charging method in step (3) is Corona polar method.
In the present embodiment, conducting film 1 is aluminium foil, and conductive electrode 3 is graphene conductive electrode.
Embodiment 7:
The present embodiment preparation, based on the composite construction electromechanical transducing material of PP film, specifically comprises the following steps:
(1) PP polymer is made PP waveform polymer film 2 by thermoplastic processes;
(2) conducting resinl adhesion technique is adopted conductive electrode 3 to be covered the obtained PP waveform polymer film 2 of step (1) on the surface;
(3) charge to PE waveform polymer film 2 in the scope of freedom not covering conductive electrode 3 by the middle PP waveform polymer film 2 of step (2);
(4) scope of freedom and the conducting film 1 that the PP waveform polymer film 2 after step (3) charging are not covered conductive electrode 3 are bonded together, i.e. the obtained described composite construction electromechanical transducing material based on PP film.
Wherein, the charging method in step (3) is Corona polar method.
In the present embodiment, conducting film 1 is corrosion resistant plate, and conductive electrode 3 is graphene conductive electrode.
Embodiment 8:
The present embodiment preparation, based on the composite construction transductive material of pen film, specifically comprises the following steps:
(A) PEN polymer is made PEN waveform polymer film 2 by imprint process;
(B) obtained to step (A) PEN waveform polymer film 2 charges;
(C) until step (B) charging terminate after, adopt magnetron sputtering technique conductive electrode 3 is covered with electric charge PEN waveform polymer film 2 on the surface;
(D) scope of freedom and the conducting film 1 that PEN waveform polymer film 2 in step (C) are not covered conductive electrode 3 are bonded together, i.e. the obtained described composite construction electromechanical transducing material based on pen film.
Wherein, the charging method in step (B) is Corona polar method.
In the present embodiment, conducting film 1 is aluminium sheet, and conductive electrode 3 is aerdentalloy conductive electrode.
Embodiment 9:
The present embodiment preparation, based on the composite construction electromechanical transducing material of PI film, specifically comprises the following steps:
A PI polymer is made PI waveform polymer film 2 by imprint process by ();
B () adopts vacuum evaporation process to be covered by conductive electrode 3 on a surface of the obtained PI waveform polymer film 2 of step (a);
C () PI waveform polymer film 2 in step (b) is not covered the scope of freedom of conductive electrode 3 and conducting film 1 is bonded together;
D () is charged to the scope of freedom that PI waveform polymer film 2 in step (c) does not cover conductive electrode 3, i.e. the obtained described composite construction electromechanical transducing material based on PI film.
Wherein, the charging method in step (d) is contact method charging.
In the present embodiment, conducting film 1 is conductive composite film, and conductive electrode 3 is aluminium electricity electrode.
Claims (10)
1. the method for the preparation of composite construction electromechanical transducing material, it is characterized in that, the method is that polymer is made waveform polymer film by thermoplastic processes, pouring technology or imprint process, then conductive electrode is covered on a surface of waveform polymer film, and charge to the scope of freedom that waveform polymer film does not cover conductive electrode, ledge and the conducting film on the scope of freedom after being charged by waveform polymer film are again bonded together, and namely make described composite construction electromechanical transducing material.
2. a kind of method for the preparation of composite construction electromechanical transducing material according to claim 1, is characterized in that, specifically comprise the following steps:
(1) polymer is made waveform polymer film by thermoplastic processes, pouring technology or imprint process;
(2) conductive electrode is covered on a surface of the obtained waveform polymer film of step (1);
(3) charge in the scope of freedom not covering conductive electrode to step (2) medium wave shape wave polymer film;
(4) ledge and the conducting film on the scope of freedom after being charged by step (3) medium wave shape wave polymer film are bonded together, i.e. obtained described composite construction electromechanical transducing material.
3. a kind of method for the preparation of composite construction electromechanical transducing material according to claim 1, is characterized in that, specifically comprise the following steps:
(A) polymer is made waveform polymer film by thermoplastic processes, pouring technology or imprint process;
(B) obtained to step (A) waveform polymer film charges;
(C) after step (B) charging terminates, conductive electrode is covered on the uncharged surface of waveform polymer film with electric charge;
(D) ledge and the conducting film on the scope of freedom after being charged by step (C) medium wave shape wave polymer film are bonded together, i.e. obtained described composite construction electromechanical transducing material.
4. a kind of method for the preparation of composite construction electromechanical transducing material according to claim 1, is characterized in that, specifically comprise the following steps:
A polymer is made waveform polymer film by thermoplastic processes, pouring technology or imprint process by ();
B conductive electrode covers on a surface of the obtained waveform polymer film of step (a) by ();
C () step (b) medium wave shape wave polymer film is not covered ledge on the scope of freedom of conductive electrode and conducting film is bonded together, obtained composite construction film;
D () applies direct current (DC) biases to two electrodes of the obtained composite construction film of step (c) and charges, i.e. obtained described composite construction electromechanical transducing material.
5. a kind of method for the preparation of composite construction electromechanical transducing material according to claim 1,2,3 or 4, it is characterized in that, described polymer comprises the one in polytetrafluoroethylene (PTFE), fluorinated ethylene propylene copolymer (FEP), cyclic olefin polymer, PETG (PET), polyimides (PI), polyethylene (PE), polypropylene (PP) or PEN (PEN).
6. a kind of method for the preparation of composite construction electromechanical transducing material according to claim 1,2,3 or 4, it is characterized in that, described conductive electrode material comprises the one in aluminium, gold, silver, graphite or Graphene.
7. a kind of method for the preparation of composite construction electromechanical transducing material according to claim 1,2,3 or 4, it is characterized in that, the covering method of described conductive electrode comprises the one in vacuum evaporation, silk screen printing, magnetron sputtering or conductive tape bonding.
8. a kind of method for the preparation of composite construction electromechanical transducing material according to claim 1,2,3 or 4, it is characterized in that, described waveform polymer film does not cover the ledge coating adhesive or arrange double-sided sticky tape on the scope of freedom of conductive electrode, and the described waveform polymer film scope of freedom that do not cover conductive electrode is bonded together by adhesive or double-sided sticky tape and conducting film.
9. a kind of method for the preparation of composite construction electromechanical transducing material according to claim 1,2,3 or 4, it is characterized in that, described conducting film comprises the one in aluminium foil, Copper Foil, aluminium sheet, copper coin, corrosion resistant plate, conductive polymer membrane or conductive composite film.
10. a kind of method for the preparation of composite construction electromechanical transducing material according to claim 1,2,3 or 4, is characterized in that, the method for described charging is the one in Corona polar method, contact charging method, ion implantation or electron beam injection method.
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| CN105513861A (en) * | 2015-11-27 | 2016-04-20 | 同济大学 | Preparation method of thin-film switch |
| CN105958858A (en) * | 2016-05-25 | 2016-09-21 | 西南交通大学 | Double-layer wave-shaped hybrid nanometer generator |
| CN107308463A (en) * | 2017-06-22 | 2017-11-03 | 南京工业大学 | Composite film for cancer treatment and stress visualization |
| CN108158362A (en) * | 2017-12-13 | 2018-06-15 | 同济大学 | A kind of preparation method of electrostatic generating carpet |
| CN109818521A (en) * | 2019-01-23 | 2019-05-28 | 西北工业大学深圳研究院 | A kind of honeycomb fashion electret/electrostatic energy collector |
| CN110022088A (en) * | 2019-03-15 | 2019-07-16 | 江苏理工学院 | Composite marine electricity generation system based on sea water desalination |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110022088A (en) * | 2019-03-15 | 2019-07-16 | 江苏理工学院 | Composite marine electricity generation system based on sea water desalination |
| CN110022117A (en) * | 2019-03-15 | 2019-07-16 | 江苏理工学院 | Composite marine electricity generation system based on the submarine cable conveying energy |
| CN110022087A (en) * | 2019-05-09 | 2019-07-16 | 同济大学 | The energy conversion unit and preparation method of beam type vibration energy collector |
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