KR101761055B1 - Manufacturing method of electro active polymer soft actuator by h-BN - Google Patents
Manufacturing method of electro active polymer soft actuator by h-BN Download PDFInfo
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- KR101761055B1 KR101761055B1 KR1020160024830A KR20160024830A KR101761055B1 KR 101761055 B1 KR101761055 B1 KR 101761055B1 KR 1020160024830 A KR1020160024830 A KR 1020160024830A KR 20160024830 A KR20160024830 A KR 20160024830A KR 101761055 B1 KR101761055 B1 KR 101761055B1
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- ionic polymer
- flexible actuator
- foil
- electroactive polymer
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/005—Electro-chemical actuators; Actuators having a material for absorbing or desorbing gas, e.g. a metal hydride; Actuators using the difference in osmotic pressure between fluids; Actuators with elements stretchable when contacted with liquid rich in ions, with UV light, with a salt solution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
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- H01L41/09—
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- H01L41/193—
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- H01L41/35—
Abstract
The present invention relates to a method for manufacturing an electroactive polymer flexible actuator using h-BN,
Pouring the liquid nafion solution into a mold;
Drying at room temperature so that the solvent of the liquid naphion evaporates;
Separating from the frame;
Heat treating to increase the mechanical strength;
Boiling in a solution to form an ionic polymer layer (3);
Transferring the h-BN layer (2) under and over the ionic polymer layer (3), respectively;
And,
The electroactive polymer flexible actuator using the h-BN produced by the method for producing an electroactive polymer flexible actuator using the h-BN of the present invention is characterized in that h-BN having a dense plate- Layer, it has a natural evaporation reducing effect that the water inside the ionic polymer passes through the crack of the metal electrode, and the effect of reducing the electric field caused by inserting the dielectric is insignificant. Therefore, the displacement displacement similar to that of the IPMC using the conventional metal electrode, It is possible to manufacture a driver having driving force and improved stability against long-time operation.
In addition, the use of h-BN having good insulating properties has a remarkable effect that it is advantageous for future development of a layered IPMC.
Description
The present invention relates to a method for manufacturing an electroactive polymer flexible actuator using h-BN, and more particularly, to a method for manufacturing an electroactive polymer flexible actuator using h-BN, which comprises transferring an h- To a method of manufacturing an electroactive polymer flexible actuator.
In recent years, electro-active polymers (EAP) have been studied in many engineering fields due to their light weight and elasticity, according to electroactive polymer actuators disclosed in commonly-assigned Published Unexamined Patent Application No. 10-2012-0001166. Ionic Polymer-Metal Composite (IPMC) is one of the most popular electroactive polymer actuators with low electrical drive potential, large strain and light weight. Such ion polymer metal composites are very attractive as actuators or sensors in many fields of biomedical and robotics engineering.
According to the prior art, the electroactive polymer actuator of Patent Publication No. 10-2012-0001166 includes an ion-exchange polymer material and two or more pairs of surface electrodes formed on the surface of the ion-exchange polymer material so as to be spaced apart from each other Is referred to as an " electroactive polymer actuator "
As another prior art, according to the method of manufacturing an electroactive polymer actuator of Patent Registration No. 10-1384772,
a) synthesizing a polymer precursor containing a carboxyl group by reacting an aromatic diamine-based monomer with an aromatic anhydride-based monomer;
b) performing a cation exchange by reacting the polymer precursor with a metal salt compound; And
c) heat treating the polymer precursor containing the metal ion obtained through the cation exchange at 150 ° C or higher to reduce the metal ion simultaneously with the imidization reaction of the polymer precursor; Lt; / RTI >
As the aromatic diamine-based monomer in the step a), a sulfonated aromatic diamine-based monomer and a non-sulfonated aromatic diamine-based monomer are used together, and the sulfonated aromatic diamine-based monomer is 2,2-benzindinedisulfone acid (BDSA), 2,4-diaminobenzenesulfonic acid (2,5-DASA), 2,2-benzodinedisulfonic acid (BDSA), 4,4'-diaminobiphenyl- , 3,5-diaminobenzenesulfonic acid (3,5-DASA), 4,4'-sulfonic diamine (4,4'-DDS), 3,3'-sulfonic diamine DDS), 9,9-bis (4-aminophenyl) fluorine-2,7-disulphonic acid (BAPFDS), and 2,4-diaminobenzenesulphonic acid Wherein the unsulfonated aromatic diamine-based monomer is at least one selected from the group consisting of 3,5-diaminobenzoic acid (3,5-DABA), 4,4'-oxydianiline, 4,4'-ODA), 3,4'-oxydiphenylenediamine (3,4-ODA), 1,4-phenylenediamine (PDA) (4-aminophenoxy) benzene (TPE-Q), 1,3-bis (4-aminophenoxy) benzene (TPE-R), 4,4'- , A diaminoalkane having 4 to 10 carbon atoms (H2N to (CH) 1 to NH2, wherein? = 4 to 10)
The aromatic anhydride monomer in step a) may be at least one selected from the group consisting of 4,4 '- (hexafluoroisopropylidene) diphthalic dianhydride (6FDA), 2,2-bis (3,4-dicarboxyphenyl) hexafluoropropane dianhydride (BPDA), 4,4'-biphenyltetracarboxylic acid dianhydride (BPDA), 4,4'-biphenyltetracarboxylic acid dianhydride (3,3 ', 4,4'-benzophenonetetracarboxylic dianhydride, BTDA), 3,3', 4,4'-benzophenone tetracarboxylic dianhydride, 4,4'-diphenylsulfonetetracarboxylic acid dianhydride, 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTDA), and 1,4,5,8-naphthalenetetracarboxylic dianhydride Or more,
The metal salt compound of step b) may be selected from the group consisting of silver nitrate (AgNO3), silver fluoride (AgF), diammino silver hydroxide (NH2) 2AgOH, potassium tetrapretinate (K2PtCl4), tetraamine platinum (II) nitrate (Pt (NH3) 4 (NO3) 2), HAuCl4, AuCl3, sodium sulfite Na3Au (SO3) 2, palladium chloride ), Tetraammine palladium dichloride (Pd (NH3) 4Cl2), diaminodichloropalladium (Pd (NH3) 2Cl2), and palladium chloride (H2PdCl6)
In the step a), the aromatic diamine-based monomer and the aromatic anhydride-based monomer are reacted at a temperature of 25 to 100 ° C to produce an electroactive polymer actuator.
Existing IPMCs have many disadvantages. For example, natural evaporation and electrolysis by applied voltage in the ionic polymer layer of IPMCs causes the moisture of the ionic polymer layer to escape through the cracks of the metal electrode, Driving characteristics may be reduced and a straightening-back phenomenon may be induced.
In the case of conventional IPMCs, the thickness of the ionic polymer layer needs to be structurally increased in order to improve the driving power. However, the increase in the thickness of the ionic polymer layer may cause a decrease in the electric field within the ionic polymer, There is a possibility that the driving displacement is greatly reduced due to the increase in weight.
In addition, in the case of existing IPMCs, it is necessary to develop multilayer IPMCs structurally in order to improve the driving power. However, it is difficult to select an appropriate insulating material to be used as an insulation layer for the multilayer IPMCs.
SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide an ionic polymer layer having a dense plate-like structure and a low dielectric constant as a layer covering the ionic polymer layer, And it is possible to fabricate a driver with improved driving stability and stable displacement for driving with similar driving displacement and driving force as IPMC using conventional metal electrode because the effect of electric field reduction caused by inserting dielectric is very small And using h-BN having good insulating properties, h-BN which is advantageous for the future development of a layered IPMC.
The present invention relates to a method for manufacturing an electroactive polymer flexible actuator using h-BN,
Pouring the liquid nafion solution into a mold;
Drying at room temperature so that the solvent of the liquid naphion evaporates;
Separating from the frame;
Heat treating to increase the mechanical strength;
Boiling in a solution to form an ionic polymer layer (3);
Transferring the h-BN layer (2) below and above the ionic polymer layer, respectively;
And a control unit.
Therefore, the electroactive polymer flexible actuator using the h-BN produced by the method of manufacturing the electroactive polymer flexible actuator using the h-BN according to the present invention is characterized in that the ionic polymer layer having a dense plate- It has a natural evaporation reducing effect that water inside the ionic polymer escapes through a crack of the metal electrode and the effect of reducing the electric field that can be induced by inserting the dielectric is insignificant so that the displacement displacement similar to the IPMC using the conventional metal electrode , It is possible to manufacture a driver having driving force and improved stability against long-time operation.
In addition, the use of h-BN having good insulating properties has a remarkable effect that it is advantageous for future development of a layered IPMC.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view of an electroactive polymer flexible actuator using h-BN of the present invention. FIG.
FIG. 2 is an explanatory view showing that electrodes are installed on upper and lower parts of an electroactive polymer flexible actuator using h-BN according to the present invention. FIG.
3 is a h-BN / Cu foil drawing used in the present invention.
4 is a process chart of the present invention.
The present invention relates to a method for manufacturing an electroactive polymer flexible actuator using h-BN,
Pouring the liquid nafion solution into a mold;
Drying at room temperature so that the solvent of the liquid naphion evaporates;
Separating from the frame;
Heat treating to increase the mechanical strength;
Boiling in a solution to form an ionic polymer layer (3);
Transferring the h-BN layer (2) below and above the ionic polymer layer, respectively;
And a control unit.
Also, when boiling in solution, the solution contains hydrogen peroxide and D.I. water.
Preparing h-BN / Cu foil;
PMMA spin-coating on h-BN;
Back-side etching of the Cu foil in the solution to remove impurities on the lower surface of the Cu foil;
Etching Cu foil by placing Cu foil on an APS (Ammonium persulfate solution);
The PMMA / h-BN remaining on the APS is removed using an OH film to transfer the h-
Immersing it in acetone to remove PMMA;
And a control unit.
Further, the solution may be a nitric acid aqueous solution, D.I. water, the nitric acid aqueous solution, D.I. water to remove impurities on the lower surface of the Cu foil.
Further, PMMA / h-BN remaining on the APS is recovered using an OH film and transferred to the lower surface of the ionic polymer layer (3). and rinsing with water.
The present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is an explanatory view of an electroactive polymer flexible actuator using h-BN according to the present invention, FIG. 2 is an explanatory view in which electrodes are installed at upper and lower parts in an electroactive polymer flexible actuator using h-BN of the present invention, and FIG. h-BN / Cu foil, and Fig. 4 is a process chart of the present invention.
The present invention relates to a method for improving the mechanical properties of electroactive polymer flexible actuators (IPMCs) using hexagonal boron nitride (h-BN).
The present invention also relates to existing IPMCs. 1 and 2, h-BN is transferred below and above the ionic polymer layer to produce IPMCs with improved mechanical properties.
1 is a block diagram of an electroactive polymer flexible actuator using h-BN.
Fig. 2 shows a h-BN having a dense plate-like structure that is able to escape through cracks on the electrode surface.
The ionic polymer of the present invention mainly uses the liquid naphion of DuPont which is most commercially available.
There are two methods for forming the h-BN layer of the present invention, and the first method is as follows.
Pour the liquid nafion solution into the mold in an amount of 8 to 9 times the desired thickness.
Dry at room temperature so that a suitable amount of liquid nafion solvent evaporates, and then remove from the mold.
Heat treatment is performed at 100 to 160 ° C for 50 to 70 minutes to increase the mechanical strength.
If the heat treatment temperature is less than 100 占 폚 or the heat treatment time is less than 50 minutes, polymerization is not likely to occur.
If the heat treatment temperature exceeds 160 DEG C or the heat treatment time exceeds 70 minutes, the quality of the manufactured product is poor.
75 to 100 DEG C Hydrogen peroxide for 50 to 70 minutes, 60 to 100 DEG C D.I. When boiled in water for 50 to 70 minutes, an ionic polymer layer (3) is formed.
If the temperature of the hydrogen peroxide solution is less than 75 占 폚 or the boiling time is less than 50 minutes, the ionic polymer layer is not formed well.
If the temperature of the hydrogen peroxide solution exceeds 100 DEG C or the boiling time exceeds 70 minutes, the quality of the manufactured product is poor.
D.I. If the water temperature is less than 60 占 폚 or the boiling time is less than 50 minutes, the ionic polymer layer is not formed well.
D.I. If the water temperature exceeds 100 ° C or the boiling time exceeds 70 minutes, the quality of the manufactured product is poor.
Then, the h-
As an example, the liquid nafion solution is poured into the mold in an amount of about 8.5 times the desired thickness.
Dry at room temperature so that a suitable amount of liquid nafion solvent evaporates, and then remove from the mold.
Heat treatment at 140 ° C for 1 hour increases the mechanical strength.
80 ° C hydrogen peroxide for 1 hour, 80 ° C DI. water is boiled for 1 hour to form an
A second manufacturing method according to another embodiment of the present invention is as follows.
Purchase a commercial product in the form of h-BN / Cu foil.
PMMA spin coating is performed on h-BN.
Cu foil was dissolved in a nitric acid aqueous solution, D.I. water, and back-side etching proceeds (removing Cu foil impurities).
Cu foil is exposed to APS (Ammonium persulfate solution) and Cu foil is etched.
The PMMA / h-BN remaining on the APS is recovered using OH film.
After that, D.I. water, and the h-
When PMMA is removed by immersing in acetone, an electroactive polymer flexible actuator using h-BN of the present invention is produced.
Therefore, the electroactive polymer flexible actuator using the h-BN produced by the method of manufacturing the electroactive polymer flexible actuator using the h-BN according to the present invention is characterized in that the ionic polymer layer having a dense plate- It has a natural evaporation reducing effect that water inside the ionic polymer escapes through a crack of the metal electrode and the effect of reducing the electric field that can be induced by inserting the dielectric is insignificant so that the displacement displacement similar to the IPMC using the conventional metal electrode , It is possible to manufacture a driver having driving force and improved stability against long-time operation.
In addition, the use of h-BN having good insulating properties has a remarkable effect that it is advantageous for future development of a layered IPMC.
1: electrode 2: h-BN
3: ionic polymer layer
Claims (5)
PMMA spin-coating on h-BN;
Back-side etching of the Cu foil in the solution to remove impurities on the lower surface of the Cu foil;
Etching Cu foil by placing Cu foil on an APS (Ammonium persulfate solution);
The PMMA / h-BN remaining on the APS is removed using an OH film to transfer the h-BN layer 2 to the upper surface and the lower surface of the ionic polymer layer, respectively;
Immersing it in acetone to remove PMMA;
Wherein the h-BN-based electroactive polymeric flexible actuator is manufactured by a method comprising the steps of:
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| KR1020160024830A KR101761055B1 (en) | 2016-03-02 | 2016-03-02 | Manufacturing method of electro active polymer soft actuator by h-BN |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660441A (en) * | 2018-06-15 | 2018-10-16 | 厦门大学 | A kind of transfer method of boron nitride pellicle |
| KR20190043420A (en) * | 2017-10-18 | 2019-04-26 | 엘지디스플레이 주식회사 | Touch sensitive device and display device comprising the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5374500B2 (en) * | 2007-05-28 | 2013-12-25 | セラム ハイド | Method for activating boron nitride |
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2016
- 2016-03-02 KR KR1020160024830A patent/KR101761055B1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5374500B2 (en) * | 2007-05-28 | 2013-12-25 | セラム ハイド | Method for activating boron nitride |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190043420A (en) * | 2017-10-18 | 2019-04-26 | 엘지디스플레이 주식회사 | Touch sensitive device and display device comprising the same |
| US11435828B2 (en) | 2017-10-18 | 2022-09-06 | Lg Display Co., Ltd. | Touch sensitive device and display device including the same |
| KR102445118B1 (en) * | 2017-10-18 | 2022-09-19 | 엘지디스플레이 주식회사 | Touch sensitive device and display device comprising the same |
| CN108660441A (en) * | 2018-06-15 | 2018-10-16 | 厦门大学 | A kind of transfer method of boron nitride pellicle |
| CN108660441B (en) * | 2018-06-15 | 2019-09-20 | 厦门大学 | A kind of transfer method of boron nitride pellicle |
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