CN108946654A - Super hydrophobic surface and its processing method with shape memory function, application method - Google Patents
Super hydrophobic surface and its processing method with shape memory function, application method Download PDFInfo
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- CN108946654A CN108946654A CN201810777697.1A CN201810777697A CN108946654A CN 108946654 A CN108946654 A CN 108946654A CN 201810777697 A CN201810777697 A CN 201810777697A CN 108946654 A CN108946654 A CN 108946654A
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- epoxy resin
- shape memory
- silica gel
- memory function
- super hydrophobic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B7/00—Microstructural systems; Auxiliary parts of microstructural devices or systems
- B81B7/04—Networks or arrays of similar microstructural devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
- B81C1/00—Manufacture or treatment of devices or systems in or on a substrate
- B81C1/00015—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems
- B81C1/00023—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems without movable or flexible elements
- B81C1/00119—Arrangement of basic structures like cavities or channels, e.g. suitable for microfluidic systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
- B81C1/00—Manufacture or treatment of devices or systems in or on a substrate
- B81C1/00015—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems
- B81C1/00023—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems without movable or flexible elements
- B81C1/00126—Static structures not provided for in groups B81C1/00031 - B81C1/00119
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- Microelectronics & Electronic Packaging (AREA)
- Analytical Chemistry (AREA)
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- Dispersion Chemistry (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
The invention discloses a kind of super hydrophobic surface with shape memory function and its processing methods, application method, silica gel substrate surface impurity is cleaned with ethanol solution first, femtosecond laser is recycled to carry out drilling processing on silica gel substrate surface, then it is transferred using epoxy resin solution, finally obtains super-hydrophobic micro-pillar array surface；When microtrabeculae is in upright state, adhesion strength very little of the surface to water droplet；When microtrabeculae is in collapsed state, surface is very big to the adhesion strength of water droplet；The upright state and collapsed state of microtrabeculae can be controlled by temperature, so the tuning of surface adhesion may be implemented.
Description
Technical field
The present invention relates to shape-memory polymer field, specifically a kind of super hydrophobic surface with shape memory function and
Its processing method, application method.
Background technique
In the past more than ten years, the intelligent surface with reversible switching wetability is extensive in industry and science because of it
Using and cause the great interest of scientific circles, such as the transmission of the microfluid based on droplet, " lossless " liquid, water-oil separating and life
Object technology etc..What this reversible transformation was realized generally by environmental stimuli, such as illumination, temperature, PH and magnetic field etc..Most
Closely, the method that Jiang Lei team combines photoetching and transfer, is prepared for the super hydrophobic surface of temperature-responsive, the items of water droplet may be implemented
The same sex/anisotropic conversion.But sample making process is more complicated.So the present invention is had shape by epoxy resin
The inspiration of memory function combines silica gel pattern mould with femtosecond laser, and a step processes microcellular structure, eliminates complicated photoetching
Process, then the super hydrophobic surface for providing micro-column structure is transferred with epoxy resin.
Summary of the invention
The object of the present invention is to provide a kind of super hydrophobic surface with shape memory function and its processing methods, user
Method, to achieve the purpose that surface adhesion is tunable.
In order to achieve the above object, the technical scheme adopted by the invention is as follows:
Super hydrophobic surface with shape memory function, it is characterised in that: including epoxy resin thin layer, epoxy resin thin layer
Surface on have epoxy resin micro-pillar array, epoxy resin micro-pillar array is an integral structure with epoxy resin thin layer.
The super hydrophobic surface with shape memory function, it is characterised in that: the epoxy resin thin layer and epoxy
The epoxy resin material of resin micro-pillar array is by epoxy prepolymer (A) and epoxy curing agent (B) 3:1 in mass ratio
It is formulated.
The super hydrophobic surface with shape memory function, it is characterised in that: the thickness of the epoxy resin thin layer
Microtrabeculae base diameter for 1-3mm, epoxy resin micro-pillar array is 60 μm, is highly 200 μm.
A kind of processing method of the super hydrophobic surface with shape memory function, it is characterised in that: the following steps are included:
(1), silica gel pattern mould surface is cleaned, obtains clean silica gel substrate to remove surface impurity；
(2), drilling processing is carried out to the silica gel substrate surface after step (1) cleaning using femto-second laser, makes silica gel base
Material surface forms microwell array, is then cleaned by ultrasonic, last fluorination treatment；
(3), prepared epoxy resin solution is poured on step (2) treated on silica gel substrate, vacuumizing makes epoxy
Resin solution is completely into inside micropore；
(4), the sample of step (3) is placed on and is solidified 12-24 hours at room temperature, then peel epoxy resin thin layer,
Epoxy resin thin layer lower surface can transfer out mini column array structure to get the super hydrophobic surface with shape memory function is arrived.
The processing method of the super hydrophobic surface with shape memory function, it is characterised in that: first in step (1)
Silica gel pattern mould surface is first cleaned by ultrasonic 10min using the alcoholic solution of concentration >=99.7%, the impurity on surface is removed, is done
Net silica gel substrate.
The processing method of the super hydrophobic surface with shape memory function, it is characterised in that: in step (2), fly
Second laser center wavelength is 800nm, pulsewidth 104fs, repetition rate 1KHz, the machined parameters of femto-second laser are as follows: is bored
The hole duration is 80-100ms, laser power 200mw；Silica gel substrate is cleaned by ultrasonic 10min；Fluorination uses the side of drop coating
Silicon fluoride solution is uniformly dripped on surface, then vacuumizes 10min by formula, it is ensured that silicon fluoride solution is completely into arriving
Inside micropore.
A kind of application method of the super hydrophobic surface with shape memory function, it is characterised in that: will have micro-pillar array
The epoxy resin thin layer of structure applies certain pressure in case of heating, to be cooled to arrive room temperature, removes pressure, micro-pillar array
The state collapsed can be kept, surface adhesion at this time is larger；Then the microarray to collapse is heated again, and can be extensive
Upright state is arrived again, and adhesion strength at this time is smaller.
The principle of the present invention is:
The present invention mainly using the epoxy resin microtrabeculae of transfer to temperature have the characteristics of response realize drop adhesion strength can
Tuning.Original epoxy resin thin layer surface is (smooth) to have water-wet behavior, and after transfer, the micro-column structure on surface can be
Water droplet supports, and will form air cavity between water droplet and microtrabeculae, to realize the superhydrophobic characteristic on surface.When temperature is higher than ring
When the glass transition temperature of oxygen resin, a pressure applied to microtrabeculae, it is to be restored to room temperature when, pressure is removed, at this point, microtrabeculae
It has been maintained for the state overwhelmed.When microtrabeculae overwhelms, surface adhesion is larger, and the roll angle of drop is also very big.When heating again
When being greater than the glass transition temperature of epoxy resin to temperature, the microtrabeculae overwhelmed will erect, at this moment the adhesion strength on surface
Smaller, drop is easier to tumble.
The invention has the advantages that
On the basis of based on environmental-friendly, using femtosecond laser, drilling is handled the present invention directly on silica gel pattern mould, fastly
Speed is convenient, required process simplification.
The present invention first cleans silica gel substrate surface impurity with ethanol solution, recycles femtosecond laser in silica gel base
Material surface carries out drilling processing, is then transferred using epoxy resin, finally obtains super-hydrophobic micro-post surface.At microtrabeculae
When upright state, adhesion strength very little of the surface to water droplet；When microtrabeculae is in collapsed state, surface to the adhesion strength of water droplet very
Greatly.The upright state and collapsed state of microtrabeculae can be controlled by temperature, so the tuning of surface adhesion may be implemented.
Detailed description of the invention
Fig. 1 is the micro-column structure scanning electron microscope (SEM) photograph in 60 ° of directions in the present invention.Wherein, the amplification factor difference of (a)~(d)
For 50x, 100x, 200x, 1500x；Scale bar is respectively 100 μm, 100 μm, 20 μm, 10 μm.
Fig. 2 is the electron microscope that upright microtrabeculae overwhelms in the present invention, and scale bar is 100 μm.
Fig. 3 is the super-hydrophobic figure of upright microtrabeculae in the present invention.
Fig. 4 is the hydrophobic figure of microtrabeculae that collapses in the present invention.
Fig. 5 is the roll angle of upright microtrabeculae water droplet in the present invention.
Fig. 6 is the roll angle of microtrabeculae water droplet of collapsing in the present invention.
Specific embodiment
As shown in Figure 1, the super hydrophobic surface with shape memory function, including epoxy resin thin layer, epoxy resin thin layer
With a thickness of 3mm), have epoxy resin micro-pillar array on the surface of epoxy resin thin layer, microtrabeculae base diameter is 60 μm, is highly
200 μm), epoxy resin micro-pillar array is an integral structure with epoxy resin thin layer.
The epoxy resin material of epoxy resin thin layer and epoxy resin micro-pillar array is by epoxy prepolymer (A) and ring
Oxygen resin curing agent (B) 3:1 in mass ratio is formulated.
The processing method of super hydrophobic surface with shape memory function, comprising the following steps:
(1), silica gel pattern mould surface is cleaned, obtains clean silica gel substrate to remove surface impurity；
(2), drilling processing is carried out to the silica gel substrate surface after step (1) cleaning using femto-second laser, makes silica gel base
Material surface forms microwell array, is then cleaned by ultrasonic, last fluorination treatment；
(3), prepared epoxy resin solution is poured on step (2) treated on silica gel substrate, vacuumizing makes epoxy
Resin solution is completely into inside micropore；
(4), the sample of step (3) is placed on and is solidified 24 hours at room temperature, then peeled epoxy resin thin layer, epoxy
Thin resin layer lower surface can transfer out mini column array structure to get the super hydrophobic surface with shape memory function is arrived.
In step (1), silica gel pattern mould surface is cleaned by ultrasonic 10min using alcoholic solution (concentration >=99.7%) first,
The impurity for removing surface, obtains clean silica gel substrate.
In step (2), femto-second laser central wavelength is 800nm, pulsewidth 104fs, repetition rate 1KHz, and femtosecond swashs
The machined parameters of light device are as follows: the drilling duration is 100ms, laser power 200mw；Substrate is cleaned by ultrasonic 10min；Fluorination is adopted
With the mode of drop coating, i.e., silicon fluoride solution is uniformly dripped on surface, then vacuumize 10min, it is ensured that silicon fluoride solution
Completely into inside micropore.
The application method of super hydrophobic surface with shape memory function, it is characterised in that: will have mini column array structure
Epoxy resin thin layer apply certain pressure (~5Mpa) in the case where heating (temperature is about 50 DEG C), it is to be cooled arrive room
Temperature removes pressure, and micro-pillar array can keep the state collapsed, (as shown in Figure 2), and surface adhesion at this time is larger；Then again
The microarray to collapse is heated, and upright state can be restored to, adhesion strength at this time is smaller.
The epoxy resin mini column array structure that present invention processing obtains is placed on the platform of contact angle measurement, water is measured
The contact angle of drop.Through measuring, after transfer, upright micro-post surface is about 155 ° (as shown in Figure 3), table to the contact angle of water droplet
Reveal super-hydrophobic effect；Meanwhile the roll angle of water droplet is about 38o (as shown in Figure 5).After pillar collapses, to water droplet
Contact angle be 134 ° (as shown in Figure 4), meanwhile, sample overturning 180o when, drop will not tumble (as shown in Figure 6),
Illustrate that adhesion strength at this time is bigger.As it can be seen that the available adhesion strength tune of the micro-column structure obtained after being processed using the method for the present invention
Humorous purpose.
Claims (7)
1. the super hydrophobic surface with shape memory function, it is characterised in that: including epoxy resin thin layer, epoxy resin thin layer
There is epoxy resin micro-pillar array on surface, epoxy resin micro-pillar array is an integral structure with epoxy resin thin layer.
2. the super hydrophobic surface according to claim 1 with shape memory function, it is characterised in that: the epoxy resin
The epoxy resin material of thin layer and epoxy resin micro-pillar array is by epoxy prepolymer
(A) it is formulated with epoxy curing agent (B) 3:1 in mass ratio.
3. the super hydrophobic surface according to claim 1 with shape memory function, it is characterised in that: the epoxy resin
Thin layer with a thickness of 1-3mm, it is highly 200 μm that the microtrabeculae base diameter of epoxy resin micro-pillar array, which is 60 μm,.
4. a kind of processing method of the super hydrophobic surface described in claim 1 with shape memory function, it is characterised in that: packet
Include following steps:
(1), silica gel pattern mould surface is cleaned, obtains clean silica gel substrate to remove surface impurity；
(2), drilling processing is carried out to the silica gel substrate surface after step (1) cleaning using femto-second laser, makes silica gel substrate table
Face forms microwell array, is then cleaned by ultrasonic, last fluorination treatment；
(3), prepared epoxy resin solution is poured on step (2) treated on silica gel substrate, vacuumizing makes epoxy resin
Solution is completely into inside micropore；
(4), the sample of step (3) is placed on and is solidified 12-24 hours at room temperature, then peeled epoxy resin thin layer, epoxy
Thin resin layer lower surface can transfer out mini column array structure to get the super hydrophobic surface with shape memory function is arrived.
5. the processing method of the super hydrophobic surface according to claim 4 with shape memory function, it is characterised in that: step
Suddenly in (1), silica gel pattern mould surface is cleaned by ultrasonic 10min using the alcoholic solution of concentration >=99.7% first, removes surface
Impurity obtains clean silica gel substrate.
6. the processing method of the super hydrophobic surface according to claim 4 with shape memory function, it is characterised in that: step
Suddenly in (2), femto-second laser central wavelength is 800nm, pulsewidth 104fs, repetition rate 1KHz, the processing of femto-second laser
Parameter are as follows: the drilling duration is 80-100ms, laser power 200mw；Silica gel substrate is cleaned by ultrasonic 10min；Fluorination uses
Silicon fluoride solution is uniformly dripped on surface, then vacuumizes 10min by the mode of drop coating, it is ensured that silicon fluoride solution is complete
It enters inside micropore entirely.
7. a kind of application method of the super hydrophobic surface described in claim 1 with shape memory function, it is characterised in that: will
Epoxy resin thin layer with mini column array structure applies certain pressure in case of heating, to be cooled to arrive room temperature, removal
Pressure, micro-pillar array can keep the state collapsed, and surface adhesion at this time is larger；Then the microarray to collapse is added again
Heat treatment, and it can be restored to upright state, adhesion strength at this time is smaller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810777697.1A CN108946654A (en) | 2018-07-16 | 2018-07-16 | Super hydrophobic surface and its processing method with shape memory function, application method |
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| CN201810777697.1A CN108946654A (en) | 2018-07-16 | 2018-07-16 | Super hydrophobic surface and its processing method with shape memory function, application method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389400A (en) * | 2019-07-23 | 2019-10-29 | 中国科学技术大学 | A kind of internal structure color and preparation method thereof |
| CN113665045A (en) * | 2021-08-19 | 2021-11-19 | 西南科技大学 | Cross-species bio-excitation in-situ reversible triple switchable wettability surface structure for intelligently manipulating liquid drops and application |
| CN114408856A (en) * | 2022-01-19 | 2022-04-29 | 合肥工业大学 | Inclined micro-column array structure, preparation device and method thereof, and function control method |
| CN114477078A (en) * | 2022-04-08 | 2022-05-13 | 中国科学技术大学 | Processing method and application of integrated cross-scale micro-nano column array |
| CN115044903A (en) * | 2022-07-12 | 2022-09-13 | 贵州大学 | Abrasion-resistant super-hydrophobic shape memory alloy coating and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103881125A (en) * | 2014-03-26 | 2014-06-25 | 哈尔滨工业大学 | Method for preparing material with micromorphology capable of chemically self-repairing super-hydrophobic property |
| CN103951936A (en) * | 2014-03-26 | 2014-07-30 | 哈尔滨工业大学 | Preparation method of shape memory material capable of physically self-repairing superhydrophobic property |
| CN105504324A (en) * | 2015-12-23 | 2016-04-20 | 中国航空工业集团公司北京航空制造工程研究所 | Resin matrix composite with super-hydrophobic bionic surface and preparation method of resin matrix composite |
| CN106082111A (en) * | 2016-06-16 | 2016-11-09 | 哈尔滨工业大学 | A kind of isotropism and the preparation method of the changeable super hydrophobic surface of anisotropic |
| CN106987113A (en) * | 2017-04-11 | 2017-07-28 | 上海交通大学 | Rapidly and efficiently self-repair type shape memory polymer composite material and preparation method thereof by all kinds of means |
-
2018
- 2018-07-16 CN CN201810777697.1A patent/CN108946654A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103881125A (en) * | 2014-03-26 | 2014-06-25 | 哈尔滨工业大学 | Method for preparing material with micromorphology capable of chemically self-repairing super-hydrophobic property |
| CN103951936A (en) * | 2014-03-26 | 2014-07-30 | 哈尔滨工业大学 | Preparation method of shape memory material capable of physically self-repairing superhydrophobic property |
| CN105504324A (en) * | 2015-12-23 | 2016-04-20 | 中国航空工业集团公司北京航空制造工程研究所 | Resin matrix composite with super-hydrophobic bionic surface and preparation method of resin matrix composite |
| CN106082111A (en) * | 2016-06-16 | 2016-11-09 | 哈尔滨工业大学 | A kind of isotropism and the preparation method of the changeable super hydrophobic surface of anisotropic |
| CN106987113A (en) * | 2017-04-11 | 2017-07-28 | 上海交通大学 | Rapidly and efficiently self-repair type shape memory polymer composite material and preparation method thereof by all kinds of means |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389400A (en) * | 2019-07-23 | 2019-10-29 | 中国科学技术大学 | A kind of internal structure color and preparation method thereof |
| CN110389400B (en) * | 2019-07-23 | 2021-08-13 | 中国科学技术大学 | Internal structure color and preparation method thereof |
| CN113665045A (en) * | 2021-08-19 | 2021-11-19 | 西南科技大学 | Cross-species bio-excitation in-situ reversible triple switchable wettability surface structure for intelligently manipulating liquid drops and application |
| CN114408856A (en) * | 2022-01-19 | 2022-04-29 | 合肥工业大学 | Inclined micro-column array structure, preparation device and method thereof, and function control method |
| CN114477078A (en) * | 2022-04-08 | 2022-05-13 | 中国科学技术大学 | Processing method and application of integrated cross-scale micro-nano column array |
| CN114477078B (en) * | 2022-04-08 | 2022-07-15 | 中国科学技术大学 | Processing method and application of integrated cross-scale micro-nano column array |
| CN115044903A (en) * | 2022-07-12 | 2022-09-13 | 贵州大学 | Abrasion-resistant super-hydrophobic shape memory alloy coating and preparation method thereof |
| CN115044903B (en) * | 2022-07-12 | 2023-05-30 | 贵州大学 | Abrasion-resistant superhydrophobic shape memory alloy coating and preparation method thereof |
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Application publication date: 20181207 |