CN105538680A - Method and device for electrostatically inducing formation of polymeric surface micro structure through ultrasonic assistance - Google Patents
Method and device for electrostatically inducing formation of polymeric surface micro structure through ultrasonic assistance Download PDFInfo
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- CN105538680A CN105538680A CN201511009069.1A CN201511009069A CN105538680A CN 105538680 A CN105538680 A CN 105538680A CN 201511009069 A CN201511009069 A CN 201511009069A CN 105538680 A CN105538680 A CN 105538680A
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- polymer film
- plate electrode
- liquid polymer
- structured form
- ultrasonic
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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
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
-
- 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
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/10—Surface shaping of articles, e.g. embossing; Apparatus therefor by electric discharge treatment
Abstract
The invention discloses a method and device for electrostatically inducing formation of a polymeric surface micro structure through ultrasonic assistance, and belongs to the field of polymeric forming. The problem that according to an existing polymeric forming method, the forming shape is single is solved. The method comprises the steps that firstly, a liquid-state polymeric thin film is located between two parallel electrodes (free of adding of voltage); secondly, ultrasonic vibration is applied to the polymeric thin film, and the polymeric surface disturbs; and finally, an electrostatic field is applied to induce micro structure forming. The method and device are mainly used for inducing formation of the polymeric surface micro structure.
Description
Technical field
The invention belongs to polymer forming art.
Background technology
Due to molecular heat disturbance, the liquid surface of nature is not definitely smooth ideal surfaced, but there is the capillary ripple with certain wavelength.When these capillary ripples are subject to the effect of certain external force, unstability is produced rheological behaviour by fluid film interface.Electrostatic induction micro-structured form technology mainly utilizes the thermal agitation of thin polymer film, outside applying electrostatic field, and the thermal agitation making thin polymer film intrinsic is constantly developed, and the effigurate microstructure of final formation tool, belongs to self-assembling technique, as shown in Figure 2; Simultaneously, electrostatic induction micro-structured form technology can under template microstructure and the discontiguous situation of thin polymer film, by template-mediated polymer surfaces micro-structured form, belong to non-planar contact surfaces forming technique, avoid the problems such as the shape defect caused in contact surface forming process.
But no matter be without templating self-assembly micro-structured form or template-mediated micro-structured form, all need to rely on the disturbance of molten polymer film thermal, micro-structural is produced by least stable wavelength, and thermal agitation has fixing wavelength, thus limit micro-structured form size, limit the shape of micro-structured form, bring circumscribed problem to the shape of micro-structured form.
Summary of the invention
The present invention is to solve the single problem of forming shape that existing forming polymer method brings, the invention provides a kind of ultrasonic wave added electrostatic induction polymer surfaces micro-structured form method and device.
A kind of ultrasonic wave added electrostatic induction polymer surfaces micro-structured form device, it comprises adjustable DC power supply, two plate electrodes, spacer, multiple ultrasonic transducer, supersonic generator and frequency converters;
Adjustable DC power supply is connected between two plate electrodes by wire, and two plate electrodes are oppositely arranged, wherein, the lower surface of a plate electrode towards the upper surface of another plate electrode,
Spacer is fixed between two plate electrodes,
Multiple ultrasonic transducer is fixed on the below of another plate electrode, and multiple ultrasonic transducer is uniformly distributed at the lower surface of another plate electrode,
The electrical power that ultrasonic transducer is used for supersonic generator produces is converted into ultrasonic kinetic energy, thus drives another plate electrode to vibrate, and frequency converter produces electrical power for controlling supersonic generator.
Described plate electrode is ITO electro-conductive glass.
Described adjustable DC power supply is amplitude range is 0V to 1000V.
The forming method that a kind of ultrasonic wave added electrostatic induction polymer surfaces micro-structured form device described in employing realizes, the method comprises the steps:
Step one, is coated in the upper surface of another plate electrode equably by liquid polymer film, make to leave the air gap between two plate electrodes, and the thickness of liquid polymer film is that tens nanometers are to hundreds of micron;
Step 2, by regulating frequency converter to make supersonic generator produce electrical power, the electrical power that supersonic generator produces is converted into ultrasonic vibration and is applied on liquid polymer film by ultrasonic transducer, makes liquid polymer film surface produce disturbance,
Step 3, produce after disturbance until liquid polymer film surface, adjustable DC power supply is started working, according to the shape of required polymer, by regulating the voltage of adjustable DC power supply, electrostatic field is applied to two plate electrodes, there is stream and become in liquid polymer film, shaping to the induction of liquid polymer film, by curing mode by liquid polymer film hardening shaping for induction, complete polymer surfaces micro-structured form.
Described curing mode is ultraviolet light polymerization or heat cure.
In step one, liquid polymer film is coated in equably the gluing mode of the upper surface of another plate electrode: adopt the method for spin coating to carry out spin coating at the upper surface of another plate electrode by sol evenning machine.
In use, first, liquid polymer film is positioned between two parallel poles (non-making alive) device of the present invention, secondly, ultrasonic vibration is applied to thin polymer film, make polymer surfaces produce disturbance, again, electrostatic field induction micro-structured form is applied.
The beneficial effect that the present invention brings is, ultrasonic technology combines with electrostatic induction technology effective by the present invention, surface disturbance is formed by ultrasonic wave, micro-structural is formed by electrostatic induction, this process just can produce the surface with microstructure without the need to template, and the various shapes of surface microstructure, reduce processing charges, improve working (machining) efficiency.
Accompanying drawing explanation
Fig. 1 is the principle schematic of a kind of ultrasonic wave added electrostatic induction polymer surfaces micro-structured form device of the present invention;
Fig. 2 is the principle schematic of existing electrostatic induction polymer surfaces micro-structured form method.
Fig. 3 is in detailed description of the invention four, the static map of liquid polymer film when not applying electrostatic field and ultrasonic vibration;
Fig. 4 is in detailed description of the invention four, the Dynamic Graph of the liquid polymer film when applying ultrasonic vibration;
Fig. 5 is in detailed description of the invention four, the shaping figure of the liquid polymer film when applying electrostatic field and ultrasonic vibration.
Detailed description of the invention
Detailed description of the invention one: present embodiment is described see Fig. 1, a kind of ultrasonic wave added electrostatic induction polymer surfaces micro-structured form device described in present embodiment, it comprises adjustable DC power supply 1, two plate electrodes 2, spacer 3, multiple ultrasonic transducer 4, supersonic generator 5 and frequency converters 6;
Adjustable DC power supply 1 is connected between two plate electrodes 2 by wire, and two plate electrodes 2 are oppositely arranged, wherein, the lower surface of a plate electrode 2 towards the upper surface of another plate electrode 2,
Spacer 3 is fixed between two plate electrodes 2,
Multiple ultrasonic transducers 4 are fixed on the below of another plate electrode 2, and multiple ultrasonic transducer 4 is uniformly distributed at the lower surface of another plate electrode 2,
Ultrasonic transducer 4 is converted into ultrasonic kinetic energy for the electrical power produced by supersonic generator 5, thus drives another plate electrode 2 to vibrate, and frequency converter 6 produces electrical power for controlling supersonic generator 5.
Present embodiment, adjustable DC power supply 1, for providing the voltage of extra electric field; The voltage of dc source 1 puts on two plate electrodes 2, forms added electrostatic field; Spacer 3, makes to form certain spacing between two plate electrodes 2; The electrical power that supersonic generator 5 produces is converted into ultrasonic vibration by ultrasonic transducer 4; Frequency converter 6 controls supersonic generator 5 and exports different electrical power; Frequency converter 6 produces different operating frequencies.
Multiple ultrasonic transducer 4 is uniformly distributed at the lower surface of another plate electrode 2, makes the liquid polymer film 7 on another plate electrode 2 stressed identical, Oscillation Amplitude identical.
Detailed description of the invention two: present embodiment is described see Fig. 1, the difference of present embodiment and a kind of ultrasonic wave added electrostatic induction polymer surfaces micro-structured form device described in detailed description of the invention one is, described plate electrode 2 is ITO electro-conductive glass.
Detailed description of the invention three: the difference of present embodiment and a kind of ultrasonic wave added electrostatic induction polymer surfaces micro-structured form device described in detailed description of the invention one is, described adjustable DC power supply 1 for amplitude range be 0V to 1000V.
Detailed description of the invention four: present embodiment is described see Fig. 3 to Fig. 5, adopt the forming method that a kind of ultrasonic wave added electrostatic induction polymer surfaces micro-structured form device described in detailed description of the invention one realizes, the method comprises the steps:
Step one, is coated in the upper surface of another plate electrode 2 equably by liquid polymer film 7, make to leave the air gap between two plate electrodes 2, and the thickness of liquid polymer film 7 is that tens nanometers are to hundreds of micron;
Step 2, by regulating frequency converter 6 to make supersonic generator 5 produce electrical power, the electrical power that supersonic generator 5 produces is converted into ultrasonic vibration and is applied on liquid polymer film 7 by ultrasonic transducer 4, makes liquid polymer film 7 surface produce disturbance,
Step 3, after liquid polymer film 7 surface produces disturbance, adjustable DC power supply 1 is started working, according to the shape of required polymer, by regulating the voltage of adjustable DC power supply 1, electrostatic field is applied to two plate electrodes 2, there is stream and become in liquid polymer film 7, induce shaping to liquid polymer film 7, by curing mode, the shaping liquid polymer film 7 of induction is solidified, complete polymer surfaces micro-structured form.
Detailed description of the invention five: the difference of the forming method that present embodiment and a kind of ultrasonic wave added electrostatic induction of the employing described in detailed description of the invention four polymer surfaces micro-structured form device realize is, described curing mode is ultraviolet light polymerization or heat cure.
Detailed description of the invention six: the difference of the forming method that present embodiment and a kind of ultrasonic wave added electrostatic induction of the employing described in detailed description of the invention four polymer surfaces micro-structured form device realize is, in step one, liquid polymer film 7 is coated in equably the gluing mode of the upper surface of another plate electrode 2: adopt the method for spin coating to carry out spin coating at the upper surface of another plate electrode 2 by sol evenning machine.
In present embodiment, method spin coating on plate electrode 2 of spin coating is adopted to have certain thickness liquid polymer film 7 by sol evenning machine, control supersonic generator 5 by frequency converter 6 and export different electrical power, be sent to ultrasonic transducer 4, the electrical power of input is converted to ultrasonic vibration by ultrasonic transducer 4, is radiated liquid polymer film 7 by plate electrode 2;
Between two plate electrodes 2, apply DC voltage, form added electrostatic field; Regulate the output voltage size of adjustable DC power supply 1, liquid polymer film 7 is made to be subject to certain electrostatic field force, regulate the frequency size of frequency converter 6, produce the ultrasonic wave with specific wavelength, under the effect of electric field force, to cause liquid polymer film 7 that stream occurs to become, until final induction is shaping; According to the material character of liquid polymer film 7, adopt corresponding curing mode, after liquid polymer film 7 solidifies, obtain microstructure.
Claims (6)
1. a ultrasonic wave added electrostatic induction polymer surfaces micro-structured form device, it is characterized in that, it comprises adjustable DC power supply (1), two plate electrodes (2), spacer (3), multiple ultrasonic transducer (4), supersonic generator (5) and frequency converters (6);
Adjustable DC power supply (1) is connected between two plate electrodes (2) by wire, two plate electrodes (2) are oppositely arranged, wherein, the lower surface of a plate electrode (2) is towards the upper surface of another plate electrode (2)
Spacer (3) is fixed between two plate electrodes (2),
Multiple ultrasonic transducer (4) is fixed on the below of another plate electrode (2), and multiple ultrasonic transducer (4) is uniformly distributed at the lower surface of another plate electrode (2),
Ultrasonic transducer (4) is converted into ultrasonic kinetic energy for the electrical power produced by supersonic generator (5), thus driving another plate electrode (2) to vibrate, frequency converter (6) produces electrical power for controlling supersonic generator (5).
2. a kind of ultrasonic wave added electrostatic induction polymer surfaces micro-structured form device according to claim 1, it is characterized in that, described plate electrode (2) is ITO electro-conductive glass.
3. a kind of ultrasonic wave added electrostatic induction polymer surfaces micro-structured form device according to claim 1, is characterized in that, described adjustable DC power supply (1) for amplitude range be 0V to 1000V.
4. adopt the forming method that a kind of ultrasonic wave added electrostatic induction polymer surfaces micro-structured form device according to claim 1 realizes, it is characterized in that, the method comprises the steps:
Step one, liquid polymer film (7) is coated in equably the upper surface of another plate electrode (2), make to leave the air gap between two plate electrodes (2), the thickness of liquid polymer film (7) is that tens nanometers are to hundreds of micron;
Step 2, supersonic generator (5) is made to produce electrical power by regulating frequency converter (6), the electrical power that supersonic generator (5) produces is converted into ultrasonic vibration and is applied on liquid polymer film (7) by ultrasonic transducer (4), liquid polymer film (7) surface is made to produce disturbance
Step 3, after liquid polymer film (7) surface produces disturbance, adjustable DC power supply (1) is started working, according to the shape of required polymer, by regulating the voltage of adjustable DC power supply (1), electrostatic field is applied to two plate electrodes (2), there is stream and become in liquid polymer film (7), induce shaping to liquid polymer film (7), by curing mode by liquid polymer film (7) shaping for induction solidification, complete polymer surfaces micro-structured form.
5. the forming method of a kind of ultrasonic wave added electrostatic induction of employing according to claim 4 polymer surfaces micro-structured form device realization, it is characterized in that, described curing mode is ultraviolet light polymerization or heat cure.
6. the forming method of a kind of ultrasonic wave added electrostatic induction of employing according to claim 4 polymer surfaces micro-structured form device realization, it is characterized in that, in step one, liquid polymer film (7) is coated in equably the gluing mode of the upper surface of another plate electrode (2): adopt the method for spin coating to carry out spin coating at the upper surface of another plate electrode (2) by sol evenning machine.
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| CN201511009069.1A CN105538680B (en) | 2015-12-28 | 2015-12-28 | A kind of ultrasonic wave added electrostatic induction polymer surfaces micro-structured form method and device |
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| CN105538680B CN105538680B (en) | 2018-07-06 |
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| CN101284423A (en) * | 2008-05-30 | 2008-10-15 | 沈阳航空工业学院 | Preparation method of carbon nano tube/carbon fiber multi-dimension mixing composite material |
| CN101837951A (en) * | 2010-05-24 | 2010-09-22 | 山东大学 | Apparatus and method for graphically producing nano structures by way of electrode induction and microwave curing |
| CN102978619A (en) * | 2012-11-14 | 2013-03-20 | 深圳大学 | Device and method of preparation of coating, membrane or composite materials |
| CN103086319A (en) * | 2013-01-16 | 2013-05-08 | 西安交通大学 | Induction preparation process for electric field with dry adhesion type two-level structure |
| CN104984890A (en) * | 2015-06-06 | 2015-10-21 | 中国科学院合肥物质科学研究院 | Flexible focusing MEMS ultrasonic generator and preparation method thereof |
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- 2015-12-28 CN CN201511009069.1A patent/CN105538680B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101284423A (en) * | 2008-05-30 | 2008-10-15 | 沈阳航空工业学院 | Preparation method of carbon nano tube/carbon fiber multi-dimension mixing composite material |
| CN101837951A (en) * | 2010-05-24 | 2010-09-22 | 山东大学 | Apparatus and method for graphically producing nano structures by way of electrode induction and microwave curing |
| CN102978619A (en) * | 2012-11-14 | 2013-03-20 | 深圳大学 | Device and method of preparation of coating, membrane or composite materials |
| CN103086319A (en) * | 2013-01-16 | 2013-05-08 | 西安交通大学 | Induction preparation process for electric field with dry adhesion type two-level structure |
| CN104984890A (en) * | 2015-06-06 | 2015-10-21 | 中国科学院合肥物质科学研究院 | Flexible focusing MEMS ultrasonic generator and preparation method thereof |
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