CN106990025A - A kind of bionic surface structure for capturing micro-nano granules - Google Patents
A kind of bionic surface structure for capturing micro-nano granules Download PDFInfo
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- CN106990025A CN106990025A CN201710241701.8A CN201710241701A CN106990025A CN 106990025 A CN106990025 A CN 106990025A CN 201710241701 A CN201710241701 A CN 201710241701A CN 106990025 A CN106990025 A CN 106990025A
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- bowl
- bionical
- hourglass
- element body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N2015/0038—Investigating nanoparticles
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Abstract
The invention discloses a kind of bionic surface structure for capturing micro-nano granules, it is the composite construction that bionical bowl-shape protrusion element body and hourglass-shaped embedded bowl configurations are distributed with element surface, bionical bowl-shape protrusion element body has pit, the lower communication hole gap of pit, hole is connected with the bottom of hourglass-shaped embedded bowl configurations；Bionical bowl-shape protrusion element body center has hole；Bionical bowl-shape protrusion element body is inclined to be set, and hourglass-shaped embedded bowl configurations neck has gap.The hole and leakage shape of the miniature scale in the bionical bowl-shape protrusion element body centre of the present invention embed bowl configurations and the gap of bionical bowl-shape protrusion element body bottom, are conducive to capturing micro-nano granules, and make the material enter hourglass-shaped embedded bowl configurations bottom.The present invention can improve the collection efficiency of micro-nano particle.
Description
Technical field
The present invention relates to a kind of surface texture, more particularly to a kind of bionic surface structure for capturing micro-nano granules.
Background technology
With the fast development of China's economy, many ground in the whole nation are shrouded by haze in recent years, sulfur dioxide, nitrogen oxides and wave
The fine particle PM2.5 such as hair property organic matter (particulate matter of the diameter less than or equal to 2.5 microns in air) discharge capacity is significantly increased.Mist
Haze weather easily makes the visibility step-down of air, and then produces the problems such as traffic jam, traffic accident take place frequently.Meanwhile, in air
The harmful substance of part micro/nano-scale can enter blood by respiratory tract and lung, seriously endanger health.Mist is eliminated at present
Haze is mainly suspended by spraying haze sorbing material in rain making, air, building the methods such as ventilation gallery to reduce in air
The content of composition granule thing.But these methods have the shortcomings that to spray in certain, such as rain making influence civic normal life, air
Spill haze sorbing material use cost height, be unable to large-scale promotion, build ventilation gallery except haze DeGrain etc..
Monitoring in real time is carried out by poisonous and harmful solid particle in sensors towards ambient simultaneously also very necessary.Sensor technology
The always difficult point and focus of international academic community research, stability is good and sensitivity height be sensor two big performances pursuits.City
The stability of sensor on field and sensitivity can not all meet use demand.Research shows, influences the main of sensor performance
Factor is exposure and time of contact of the tested micro-nano granules with sensor sensing element.The current people of correlative study both at home and abroad
Member is mainly from the angle of material, to improve the capture measured matter ability of sensor sensing element.But its preparation technology
Complexity, preparation condition is harsh, should not promote on a large scale.
The content of the invention
It is an object of the invention to provide a kind of bionic surface structure for capturing micro-nano granules, the present invention is to be based on scorpion comb
The orderly micro-nano structure form on device surface, the surface texture is conducive to improving the collection efficiency of micro-nano particle.
The present invention is that answering for bionical bowl-shape protrusion element body and hourglass-shaped embedded bowl configurations is distributed with element surface
Structure is closed, bionical bowl-shape protrusion element body has pit, the lower communication hole gap of pit, hole and hourglass-shaped embedded bowl configurations
Bottom connection；Bionical bowl-shape protrusion element body center has hole；Bionical bowl-shape protrusion element body is inclined to be set
Put,；Hourglass-shaped embedded bowl configurations neck has gap.
Described bionical bowl-shape protrusion element body and the arrangement mode of the composite construction of hourglass-shaped embedded bowl configurations are friendship
Wrong array arrangement.
The back cut diameter of the pit of described bionical bowl-shape protrusion element bodyFor 2~2.5um, bionical bowl-shape raised list
The height H of first body3For 2~2.5um；The diameter of described hourglass-shaped embedded bowl configurationsIt is hourglass-shaped embedded recessed for 5~10um
Cheat the depth H of structure1For 7~15um, the lower depth H of hourglass-shaped embedded bowl configurations2For 5~13um.
The diameter of the hole of the bionical bowl-shape protrusion element bodyFor 0.6~0.8um.
The central axis of the bionical bowl-shape protrusion element body and the angle theta of horizontal direction are 60~80 °.
The width L in the gap of the hourglass-shaped embedded bowl configurations1For 0.5~0.7um.
Described bionical bowl-shape protrusion element body and the composite construction of hourglass-shaped embedded bowl configurations are staggered arrangement
When, the distance between adjacent composite construction is that fore-and-aft clearance A is 5~10um, is between left and right 5~10um away from B.
The bionical bowl-shape protrusion element body and the physical dimensions of hourglass-shaped embedded bowl configurations of the present invention is micron order；Institute
The bionical bowl-shape inclined arrangement of protrusion element body stated, its incline direction is opposite with micro-nano granules flow direction；
Bionical bowl-shape protrusion element body centre has the hole of micro/nano-scale, and the hole and hourglass-shaped embedded bowl configurations neck
It is connected；Certain gap is arranged at hourglass-shaped embedded bowl configurations neck and bionical bowl-shape protrusion element body bottom, and the gap can lead to
Cross nano particle material.
The course of work of the present invention：
Bionical bowl-shape protrusion element body is inclined to be set, and its incline direction is with carrying micro-nano granules flow direction phase
Instead.When being loaded with the airflow passes composite structure surface of micro-nano particle, air-flow is acted on the composite construction, forms gas swirl,
So that more micro-nano granules have the contact of long period with the composite construction, be conducive to the micro-nano in further capture fluid
Rice grain material.
When the air-flow for carrying micro-nano granules is blown, the pit capture micro-nano granules of bionical bowl-shape protrusion element body,
The micro-nano granules of pit capture enter the bottom of hourglass-shaped embedded bowl configurations by hole, meanwhile, hourglass-shaped embedded pit
The top of structure can also capture micro-nano granules, and the micro-nano granules of hourglass-shaped embedded bowl configurations top capture are entered by gap
Enter the bottom of hourglass-shaped embedded bowl configurations.The upset present invention, the micro-nano granules of capture can be poured out be collected.
The beneficial effects of the invention are as follows：
1st, the hole of the miniature scale in bionical bowl-shape protrusion element body centre of the invention and leakage shape embed pit knot
Structure and the gap of bionical bowl-shape protrusion element body bottom, are conducive to capturing micro-nano granules, and it is hourglass-shaped to enter the material
Embedded bowl configurations bottom.
When the 2nd, being loaded with the airflow passes composite structure surface of micro-nano particle, air-flow and the structure function form gas swirl,
So that more micro-nano granules have the contact of long period with the structure, be conducive to micro-nano in further capture fluid
Grain material.
3rd, the present invention can be used for micro-and nano-particles capture, can be widely applied to microcapsules, ambient particle monitoring and absorb,
Sensing element of drug delivery and sensor etc..The present invention can improve the collection efficiency of micro-nano particle.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is unit composite construction schematic diagram of the invention.
Fig. 3 is the sectional view one of the unit composite construction of the present invention.
Fig. 4 is the sectional view two of the unit composite construction of the present invention.
Fig. 5 is the sectional view of the multiple unit composite constructions in longitudinal direction of the present invention.
Fig. 6 is that invention unit composite construction captures micro-nano material schematic diagram.
Wherein：1-bionical bowl-shape protrusion element body；2-hourglass-shaped embedded bowl configurations；3-pit；4-hole；5—
Gap；- hourglass-shaped embedded bowl configurations diameter；H1- hourglass-shaped embedded bowl configurations depth；- pit back cut diameter；
H2- hourglass-shaped embedded bowl configurations lower depth；H3The height of-bionical bowl-shape protrusion element body；- bionical bowl-shape projection
Cell cube center pore diameter；The angle of θ-bionical bowl-shape protrusion element body central axis and horizontal direction；L1- bionical
Bowl-shape protrusion element body bottom and hourglass-shaped embedded bowl configurations neck gap width；A-composite construction is staggered arrangement
When, the fore-and-aft clearance between adjacent composite construction；When B-composite construction is staggered arrangement, between adjacent composite construction
Between left and right away from.
Embodiment
Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the present embodiment be distributed with element surface it is bionical bowl-shape convex
The composite construction of cell cube 1 and hourglass-shaped embedded bowl configurations 2 is played, bionical bowl-shape protrusion element body 1 has under pit 3, pit 3
Portion interconnected pore 4, hole 4 is connected with the bottom of hourglass-shaped embedded bowl configurations 2；The bionical bowl-shape center of protrusion element body 1
With hole 4；Bionical bowl-shape protrusion element body 1 is inclined to be set；The hourglass-shaped neck of embedded bowl configurations 2 has gap 5.
Described bionical bowl-shape protrusion element body 1 and the arrangement mode of the composite construction of hourglass-shaped embedded bowl configurations 2 are
Staggered arrangement.
The back cut diameter of the pit 3 of described bionical bowl-shape protrusion element body 1For 2~2.5um, bionical bowl-shape projection
The height H of cell cube 13For 2~2.5um；The diameter of described hourglass-shaped embedded bowl configurations 2For 5~10um, it is hourglass-shaped in
The depth H of embedding bowl configurations 21For 7~15um, the lower depth H of hourglass-shaped embedded bowl configurations 22For 5~13um.
The diameter of the hole 4 of the bionical bowl-shape protrusion element body 1For 0.6~0.8um.
The central axis of the bionical bowl-shape protrusion element body 1 and the angle theta of horizontal direction are 60~80 °.
The width L in the gap 5 of the hourglass-shaped embedded bowl configurations 21For 0.5~0.7um.
Described bionical bowl-shape protrusion element body 1 and the composite construction of hourglass-shaped embedded bowl configurations 2 are staggered row
During row, the distance between adjacent composite construction is that fore-and-aft clearance A is 5~10um, is between left and right 5~10um away from B.
The course of work of the present embodiment：
Set as shown in fig. 6, bionical bowl-shape protrusion element body 1 is inclined, its incline direction is with carrying micro-nano
Grain flow direction is opposite.When being loaded with the airflow passes composite structure surface of micro-nano particle, air-flow is acted on the composite construction, shape
Into gas swirl so that more micro-nano granules have the contact of long period with the composite construction, be conducive to further capture
Micro-nano granules material in fluid.
When the air-flow for carrying micro-nano granules is blown, the pit 3 of bionical bowl-shape protrusion element body 1 captures micro-nano
Grain, the micro-nano granules that pit 3 is captured enter the bottom of hourglass-shaped embedded bowl configurations 2 by hole 4, meanwhile, it is hourglass-shaped interior
The top of embedding bowl configurations 2 can also capture micro-nano granules, and the micro-nano granules of the hourglass-shaped embedded top of bowl configurations 2 capture lead to
Cross the bottom that gap 5 enters hourglass-shaped embedded bowl configurations 2.The upset present invention, can pour out the micro-nano granules of capture progress
Collect.
Claims (5)
1. a kind of bionic surface structure for capturing micro-nano granules, it is characterised in that：It is that bionical bowl is distributed with element surface
The composite construction of shape protrusion element body (1) and hourglass-shaped embedded bowl configurations (2), bionical bowl-shape protrusion element body (1) has recessed
Cheat (3), pit (3) lower communication hole gap (4), hole (4) is connected with the bottom of hourglass-shaped embedded bowl configurations (2)；Bionical bowl
Shape protrusion element body (1) center has hole (4)；Bionical bowl-shape protrusion element body (1) is inclined to be set；It is hourglass-shaped
Embedded bowl configurations (2) neck has gap (5).
2. a kind of bionic surface structure for capturing micro-nano granules according to claim 1, it is characterised in that：Described is imitative
The arrangement mode of the composite construction of raw bowl-shape protrusion element body (1) and hourglass-shaped embedded bowl configurations (2) is staggered arrangement.
3. a kind of bionic surface structure for capturing micro-nano granules according to claim 1 or 2, it is characterised in that：
The back cut diameter of the pit (3) of described bionical bowl-shape protrusion element body (1)For 2~2.5um, bionical bowl-shape raised list
The height H of first body (1)3For 2~2.5um；
The diameter of described hourglass-shaped embedded bowl configurations (2)For 5~10um, the depth of hourglass-shaped embedded bowl configurations (2)
H1For 7~15um, the lower depth H of hourglass-shaped embedded bowl configurations (2)2For 5~13um；
The diameter of the hole (4) of the bionical bowl-shape protrusion element body (1)For 0.6~0.8um；
The width L in the gap (5) of the hourglass-shaped embedded bowl configurations (2)1For 0.5~0.7um.
4. a kind of bionic surface structure for capturing micro-nano granules according to claim 1 or 2, it is characterised in that：It is described
The central axis of bionical bowl-shape protrusion element body (1) and the angle theta of horizontal direction are 60~80 °.
5. a kind of bionic surface structure for capturing micro-nano granules according to claim 1 or 2, it is characterised in that：It is described
Bionical bowl-shape protrusion element body (1) and hourglass-shaped embedded bowl configurations (2) composite construction be staggered arrangement when, it is adjacent
The distance between composite construction is that fore-and-aft clearance (A) is 5~10um, is between left and right 5~10um away from (B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710241701.8A CN106990025B (en) | 2017-04-14 | 2017-04-14 | A kind of bionic surface structure capturing micro-nano granules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710241701.8A CN106990025B (en) | 2017-04-14 | 2017-04-14 | A kind of bionic surface structure capturing micro-nano granules |
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| Publication Number | Publication Date |
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| CN106990025A true CN106990025A (en) | 2017-07-28 |
| CN106990025B CN106990025B (en) | 2019-06-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813766A (en) * | 2019-03-26 | 2019-05-28 | 吉林大学 | A kind of gas sensor and preparation method thereof of imitative scorpion ctenii |
Citations (2)
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|---|---|---|---|---|
| CN104931654A (en) * | 2015-06-11 | 2015-09-23 | 吉林大学 | Biomimetic microstructure used on surface of gas sensor |
| CN106168547A (en) * | 2016-10-08 | 2016-11-30 | 吉林大学 | A kind of bionical gas absorption sampling apparatus |
-
2017
- 2017-04-14 CN CN201710241701.8A patent/CN106990025B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104931654A (en) * | 2015-06-11 | 2015-09-23 | 吉林大学 | Biomimetic microstructure used on surface of gas sensor |
| CN106168547A (en) * | 2016-10-08 | 2016-11-30 | 吉林大学 | A kind of bionical gas absorption sampling apparatus |
Non-Patent Citations (2)
| Title |
|---|
| ZHIWU HAN 等: ""The effect of the micro-structures on the scorpion surface for improving the anti-erosion performance"", 《SURFACE & COATINGS TECHNOLOGY》 * |
| 韩志武 等: ""仿生形态表面气固冲蚀磨损性能"", 《吉林大学学报(工学版)》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813766A (en) * | 2019-03-26 | 2019-05-28 | 吉林大学 | A kind of gas sensor and preparation method thereof of imitative scorpion ctenii |
| CN109813766B (en) * | 2019-03-26 | 2021-06-29 | 吉林大学 | Scorpion comb tooth-imitated gas sensor and preparation method thereof |
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| CN106990025B (en) | 2019-06-04 |
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