CN106906469B - Micro-nano nested particle melting self-bonding surface modification equipment - Google Patents
Micro-nano nested particle melting self-bonding surface modification equipment Download PDFInfo
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- CN106906469B CN106906469B CN201710277294.6A CN201710277294A CN106906469B CN 106906469 B CN106906469 B CN 106906469B CN 201710277294 A CN201710277294 A CN 201710277294A CN 106906469 B CN106906469 B CN 106906469B
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
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Abstract
The invention discloses micro-nano nested particle melting self-bonding surface modification equipment, which comprises a workbench; a particle solution mixing and circulating container which is arranged on the workbench and is used for mixing the nano particle solution; the processing tank is arranged on the workbench and used for placing a metal workpiece to be processed; the transfusion device is used for conveying the nanoparticle solution to the surface of the metal workpiece to be processed; the vacuum heating device is arranged on the workbench and is used for heating the metal workpiece to be processed to melt partial nanoparticles on the surface of the metal workpiece; and the integrated control cabinet is internally provided with a controller which is in communication connection with and controls the particle solution mixing and circulating container, the infusion device and the vacuum heating device. The sacrificial particles with lower melting points are in a molten state, the molten particles wrap or are adhered to the surface of another modified particle and a metal workpiece, the binding force between the metal workpiece and the micro-nano particles is increased, and the characteristics of the modified particles are utilized to further enable the metal surface to obtain hydrophilic and hydrophobic micro-textures.
Description
Technical Field
The invention relates to the field of surface modification, in particular to micro-nano nested particle melting self-bonding surface modification equipment.
Background
In the present society, the application of materials relates to all aspects of life and production, and different materials have the characteristics and the application range. Metal, which is the most commonly used material at present, is widely used in various fields of product processing. However, metallic materials also have their inherent deficiencies in that failure of metallic materials often results from surfaces, the most common failure forms being wear, corrosion, fracture. The surface characteristics of the metal material mainly depend on the processing technology, so that the processed and formed product is easy to have performance defects or shortcomings due to the process characteristics, the processing quality and other reasons. In order to improve the surface properties of the metal material, such as strength, hardness, rigidity, wear resistance, corrosion resistance, etc., the metal material needs to be post-treated to meet the requirements of use and performance.
The rapid development of modern science and technology, the increasing demand for the surface performance of metal materials, the new development and expansion of surface treatment technology and process, and the surface modification of bionic structures such as hydrophilic and hydrophobic structures on the surface of a metal workpiece is a more popular surface technology. With the discovery of the lotus effect of the hydrophobic surface, the super-hydrophobic material is widely applied to the aspects of self-cleaning, anti-freezing, anti-fogging, anti-corrosion, anti-blocking, microfluidic chip, lossless liquid conveying and the like, and shows wide application prospect of the super-hydrophobic material.
At present, the preparation of the super-hydrophobic surface mostly adopts an electrochemical corrosion method or a chemical corrosion method to construct a rough structure required by the super-hydrophobic surface. The electrochemical corrosion method prepares a regular rough surface by anodic oxidation and then prepares a super-hydrophobic surface by modification using a low surface energy substance. The method has the advantages of wide applicable material range, good controllability, relatively harsh conditions, large consumption of electrolyte, troublesome waste liquid recovery and treatment and difficult industrialized production, and the used electrolyte is mostly mixed solution of acid or alkali with strong corrosivity. The chemical etching method is to form a rough surface structure by chemical etching with nitric acid, hydrochloric acid, hydrofluoric acid, etc., then to construct a nano-structure on the surface by heat treatment, and finally to prepare the super-hydrophobic surface by modifying with low surface energy substances. The chemical corrosion method is simple and easy to implement, but substances used as corrosive liquid have strong corrosivity, the waste liquid is troublesome to treat, and the development of the chemical corrosion method is limited.
The self-assembly of nano-sized metal and functional molecules has wide application prospect in future nano-electronic devices, and the research on the basic theory and the practical application of the nano-sized metal and the functional molecules is becoming a new research field. At present, nanoparticles are generally subjected to surface modification, so that the nanoparticles are widely applied to various fields: magnetic fluids, color imaging, magnetic recording materials, and biomedicine. Because of the surface hydrophobicity and the large body surface ratio of the nanoparticles, the nanoparticles are easy to agglomerate in organisms, adsorb plasma proteins and are easy to be removed by a reticuloendothelial system (RES), so that the nanoparticles need to be subjected to surface modification, the hydrophilicity is increased, and the circulation half-life period is prolonged. Many substances are available for surface modification, and there are generally organic substances, inorganic substances, proteins, antibodies, and the like. Nanoparticles are currently one of the very active directions in the field of biomedical nanomaterials. The nanoparticles prepared by different methods have various biomedical applications after being modified by different polymers or molecular surfaces.
The existing metal surface modification method generally comprises a thermal sintering method and a nickel salt thermal decomposition method, wherein the thermal sintering method is used for immersing a carbon material in a liquid phase containing a modification substance, and then the modification substance is fused and combined with the carbon surface through medium-high temperature heat treatment, so that the hydrophilicity and hydrophobicity of the carbon surface are adjusted. The method is mainly characterized in that the hydrophobicity is enhanced by polytetrafluoroethylene treatment, and the hydrophilicity is enhanced by amine substance treatment.
The molten material can protect the surface structure of the material during heat treatment, so the method has little influence on the surface structure of the carbon material. The characterization by an Atomic Force Microscope (AFM) indicates that the polyethylene polyamine can protect the surface of the carbon fiber after being melted, and the shape change is weaker than that of the carbon fiber which is only subjected to heat treatment. In terms of chemical composition, the thermal sintering method introduces elements and groups in the modifying substance into the carbon surface. In terms of hydrophilic modification, amino functional groups are introduced to the carbon surface during the amination process and are present predominantly in the form of amido groups. After amino is introduced to the surface of the carbon fiber, the carbon fiber can form a hydrogen bond with epoxy groups of water and epoxy resin, and the wettability is greatly improved. In the aspect of hydrophobic modification, fluorocarbon groups are introduced after PTFE is attached to a carbon surface. Due to the increase of the content of PTFE, the hydrophilic-hydrophobic water balance can be better realized. The advantages of the thermal sintering method for regulating and controlling the hydrophilicity and the hydrophobicity are simple and convenient steps and short time.
The nickel salt thermal decomposition method is that NI2+ is firstly adsorbed on the surface of a substrate, and then nickel salt is thermally decomposed to obtain a nickel catalytic center. The activation solution prepared by nickel sulfate and sodium hypophosphite is used for activating the hollow glass beads for 2min under the ultrasonic-assisted condition, and then thermal oxidation reduction is carried out for 50min at 175 ℃, so that palladium-free activated chemical nickel-phosphorus alloy plating of the hollow glass beads is successfully realized. And then soaking the ceramic microspheres for 30min by using the activating solution, and carrying out thermal oxidation reduction for 50min at 175 ℃ to realize palladium-free activation chemical nickel-phosphorus alloy plating on the surfaces of the ceramic microspheres.
The hot sintering method has the disadvantages of high temperature treatment, high cost, uneven adhesion of the modified substances during the dipping process, and uneven hydrophilic and hydrophobic properties on the surface of the treated carbon material. The method of thermal decomposition using nickel salt has the disadvantage of being not suitable for the base material with lower melting point, but only suitable for heat-resistant materials such as ceramics, glass, silicon carbonate, etc. Meanwhile, the used chemical reagent is a low-surface-energy modifier, so that the pollution is caused, the operation is dangerous, and the metal surface roughness is reduced by direct polishing pretreatment and heat treatment.
How to provide a micro-nano nested particle fusion self-bonding surface modification device capable of enhancing the bonding force between a metal surface and nano particles is a technical problem to be solved by technical personnel in the field at present.
Disclosure of Invention
The invention aims to provide micro-nano nested particle melting self-bonding surface modification equipment which can enhance the bonding force between a metal surface and nano particles.
In order to solve the technical problem, the invention provides a micro-nano nested particle melting self-bonding surface modification device, which comprises:
a work table;
a particle solution mixing and circulating container which is arranged on the workbench and is used for mixing the nano particle solution;
the processing tank is arranged on the workbench and used for placing a metal workpiece to be processed;
the transfusion device is used for conveying the nanoparticle solution to the surface of the metal workpiece to be processed;
the vacuum heating device is arranged on the workbench and is used for heating the metal workpiece to be processed to melt partial nanoparticles on the surface of the metal workpiece;
and the integrated control cabinet is internally provided with a controller which is in communication connection with and controls the particle solution mixing and circulating container, the infusion device and the vacuum heating device.
Preferably, an ultrasonic vibration device for vibrating the nanoparticles, a magnetic stirring device for stirring the nanoparticle solution, a suspension suction device for guiding the nanoparticle solution, and a solution circulation device for filtering and circulating the nanoparticle solution are arranged inside the particle solution mixing and circulating container.
Preferably, a micro three-dimensional motion platform which is in communication connection with the controller is installed on the workbench, and the processing tank is installed on the micro three-dimensional motion platform and moves synchronously with the micro three-dimensional motion platform to enable the metal workpiece to be processed to be aligned with the infusion device.
Preferably, a workpiece clamp for clamping a metal workpiece to be machined is fixedly mounted on the upper side of the bottom plate of the machining groove.
Preferably, the workbench is provided with a main shaft, the infusion device comprises a suction tube and a suction tube clamp, an opening at one end of the suction tube is communicated with the particle solution mixing and circulating container, the suction tube clamp clamps the other end of the suction tube to enable the opening at the other end of the suction tube to be aligned with a metal workpiece to be processed, and the suction tube clamp is mounted on the main shaft and can move along the main shaft.
Preferably, a keyboard and a display screen which are in communication connection with the controller are arranged outside the integrated control cabinet.
Preferably, the workbench is provided with a video detection device for detecting the state of the nanoparticles on the surface of the metal workpiece to be processed.
Preferably, the video detection apparatus includes a support mounted to the table and a charge coupled image sensor mounted to the support.
The invention provides micro-nano nested particle melting self-bonding surface modification equipment which comprises a workbench, a processing tank, a transfusion device, a vacuum heating device and an integrated control cabinet. The particle solution mixing and circulating container is arranged on the workbench and is used for mixing the nano particle solution; the processing tank is arranged on the workbench and used for placing a metal workpiece to be processed; the transfusion device is used for conveying the nanoparticle solution to the surface of the metal workpiece to be processed; the vacuum heating device is arranged on the workbench and is used for heating the metal workpiece to be processed to melt partial nanoparticles on the surface of the metal workpiece; the controller is arranged in the integrated control cabinet and is in communication connection with and controls the particle solution mixing and circulating container, the infusion device and the vacuum heating device.
The method comprises the steps of fully mixing a nano particle solution in a particle solution mixing circulation container, conveying the nano particle solution to the surface of a metal to be processed, depositing the mixed nano particles on the surface of the metal once or repeatedly to obtain an ordered particle array, changing the surface temperature of a workpiece through a vacuum heating device, enabling sacrificial particles with a lower melting point to be in a molten state, wrapping or adhering the molten particles to the surface of another modified particle and the surface of the metal workpiece, increasing the binding force between the metal workpiece and micro-nano particles, and utilizing the characteristics of the modified particles to further enable the surface of the metal to obtain hydrophilic and hydrophobic micro-textures.
Drawings
Fig. 1 is a schematic structural diagram of a specific embodiment of micro-nano nested particle melting self-bonding surface modification equipment provided by the invention.
Detailed Description
The core of the invention is to provide a micro-nano nested particle fusion self-bonding surface modification device which can enhance the bonding force between a metal surface and nano particles.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a micro-nano nested particle fusion self-bonding surface modification apparatus provided in the present invention.
The specific embodiment of the invention provides micro-nano nested particle melting self-bonding surface modification equipment which comprises a workbench 1, a particle solution mixing and circulating container 2, a processing tank 7, an infusion device and a vacuum heating device 10.
Wherein, the particle solution mixing circulation vessel 2 is installed at the work table 1 and serves to mix the nanoparticle solution. Specifically, an ultrasonic vibration device for vibrating nanoparticles, a magnetic stirring device for stirring the nanoparticle solution, a suspension suction device for guiding the nanoparticle solution, and a solution circulation device for filtering the circulating nanoparticle solution are provided inside the particle solution mixing and circulating vessel 2. Thorough mixing of the same particles or different particles can be achieved.
The particle size is in nanometer level, so that nanometer level particles are fully fused in the solution through ultrasonic vibration and magnetic stirring, and nanometer level different kinds of metal particles or different kinds of non-metal particles or different kinds of metal and non-metal particles are fully mixed in the solution.
The processing tank 7 is installed on the table 1 and used for placing the metal workpiece 6 to be processed. Specifically, a micro three-dimensional motion platform 9 which is communicated with a controller is arranged on the workbench 1, the processing tank 7 is arranged on the micro three-dimensional motion platform 9 and moves synchronously with the micro three-dimensional motion platform 9 to enable the metal workpiece 6 to be processed to be aligned with the infusion device. The micro three-dimensional motion platform 9 can make the processing tank 7 perform accurate directional motion, ensure the relative position of the processing tank 7 and the main shaft 4, and make the suspension before processing accurately placed on the metal workpiece 6 to be processed. In order to ensure the stability in the processing process, a workpiece clamp 8 for clamping the metal workpiece 6 to be processed is fixedly arranged on the upper side of the bottom plate of the processing tank 7.
The liquid conveying device is used for conveying the nano-particle solution to the surface of the metal workpiece 6 to be processed. Specifically, a main shaft 4 is arranged on the workbench 1, the infusion device comprises a suction tube and a suction tube clamp 5, an opening at one end of the suction tube is communicated with the particle solution mixing and circulating container 2, the other end of the suction tube is clamped by the suction tube clamp 5, the opening at the other end of the suction tube is aligned to a metal workpiece 6 to be processed, and the suction tube clamp 5 is mounted on the main shaft 4 and can move along the main shaft 4. The main shaft 4 is convenient to be combined with the particle solution mixing and circulating container 2, so that the mixed suspension liquid is sucked to the surface of the metal workpiece 6 to be processed from the particle solution mixing and circulating container 2 by the nano particle solution through the suction pipe clamp 5 connected with the main shaft 4, and the mixed solution can be placed on the surface of the metal workpiece 6 to be processed for one time or multiple times.
The vacuum heating apparatus 10 is installed at the work table 1, and serves to heat the metal workpiece 6 to be processed to melt a portion of nanoparticles on the surface thereof. Placing the mixed suspension on a metal workpiece 6 to be processed through a suction tube, depositing different types of particles on the surface of the metal workpiece 6 to be processed for one time or multiple times to obtain ordered particle arrangement, then placing the workpiece in a vacuum heating device 10, heating to the melting temperature of sacrificial particles with lower melting points, and only specific types of particles can be melted into a molten state under the control of specific temperature due to different melting temperatures of the different particles. The fused particles are wrapped or adhered to another modified particle, and the particles and the metal workpiece are welded together, so that the binding force is effectively improved, a micro-nano nested structure and the effect of fusion self-binding of the particles are formed, and the effects of utilizing the micro-nano particles to carry out surface hydrophilic and hydrophobic modification on the surface of the metal workpiece and enhancing the binding force between the particles and the metal workpiece are achieved.
The integrated control cabinet 11 is internally provided with a controller which is in communication connection with and controls the particle solution mixing and circulating container 2, the infusion device and the vacuum heating device 10, and the controller controls the work of each device. Specifically, the integrated control cabinet 11 is externally provided with a keyboard and a display screen of the communication connection controller. Various functions of the equipment can be realized by arranging different devices, and the protection scope of the invention is also within the protection scope of the invention.
On the basis of the surface modification equipment provided by each of the above embodiments, the video detection device 3 for detecting the state of the nanoparticles on the surface of the metal workpiece 6 to be processed can be further installed on the workbench 1, so that the deposition condition and the particle distribution condition in a molten state on the surface of the metal workpiece 6 to be processed can be detected in real time. Specifically, the video detection device 3 includes a bracket mounted on the workbench 1 and a ccd image sensor mounted on the bracket to improve the detection accuracy, and other types of video detection devices can be used for detection, all of which are within the protection scope of the present invention.
The micro-nano nested particle melting self-bonding surface modification equipment provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. A micro-nano nested particle melting self-bonding surface modification device is characterized by comprising:
a table (1);
a particle solution mixing and circulating container (2) which is arranged on the workbench (1) and is used for mixing the nano particle solution;
the machining groove (7) is arranged on the workbench (1) and used for placing a metal workpiece (6) to be machined;
the transfusion device is used for conveying the nanoparticle solution to the surface of the metal workpiece (6) to be processed;
the vacuum heating device (10) is arranged on the workbench (1) and is used for heating the metal workpiece (6) to be processed to melt partial nano particles on the surface of the metal workpiece;
the integrated control cabinet (11) is internally provided with a controller which is in communication connection with and controls the particle solution mixing and circulating container (2), the infusion device and the vacuum heating device (10);
the particle solution mixing and circulating container (2) is internally provided with an ultrasonic vibration device for vibrating the nano particles, a magnetic stirring device for stirring the nano particle solution, a suspension suction device for guiding the nano particle solution and a solution circulating device for filtering and circulating the nano particle solution.
2. The micro-nano nested particle melting self-bonding surface modification equipment according to claim 1, wherein a micro three-dimensional motion platform (9) which is in communication connection with the controller is installed on the workbench (1), the processing tank (7) is installed on the micro three-dimensional motion platform (9) and moves synchronously with the micro three-dimensional motion platform (9) to enable a metal workpiece (6) to be processed to be aligned with the infusion device.
3. The micro-nano nested particle melting self-bonding surface modification equipment according to claim 2, wherein a workpiece clamp (8) for clamping a metal workpiece (6) to be processed is fixedly installed on the upper side of the bottom plate of the processing tank (7).
4. The micro-nano nested particle melting self-bonding surface modification equipment according to claim 1, wherein a main shaft (4) is arranged on the workbench (1), the infusion device comprises a suction tube and a suction tube clamp (5), an opening at one end of the suction tube is communicated with the particle solution mixing and circulating container (2), the other end of the suction tube is clamped by the suction tube clamp (5), the opening at the other end of the suction tube is aligned to a metal workpiece (6) to be processed, and the suction tube clamp (5) is mounted on the main shaft (4) and can move along the main shaft (4).
5. The micro-nano nested particle melting self-bonding surface modification equipment according to claim 1, wherein a keyboard and a display screen which are in communication connection with the controller are arranged outside the integrated control cabinet (11).
6. The micro-nano nested particle fusion self-bonding surface modification equipment according to any one of claims 1 to 5, characterized in that a video detection device (3) for detecting the state of nano particles on the surface of a metal workpiece (6) to be processed is installed on the workbench (1).
7. The micro-nano nested particle fused self-bonding surface modification equipment according to claim 6, wherein the video detection device (3) comprises a bracket mounted on the workbench (1) and a charge-coupled image sensor mounted on the bracket.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710277294.6A CN106906469B (en) | 2017-04-25 | 2017-04-25 | Micro-nano nested particle melting self-bonding surface modification equipment |
| PCT/CN2017/099465 WO2018196242A1 (en) | 2017-04-25 | 2017-08-29 | Micro-nano nested particle melting self-bonding surface modification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710277294.6A CN106906469B (en) | 2017-04-25 | 2017-04-25 | Micro-nano nested particle melting self-bonding surface modification equipment |
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| Publication Number | Publication Date |
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| CN106906469A CN106906469A (en) | 2017-06-30 |
| CN106906469B true CN106906469B (en) | 2020-08-07 |
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| CN201710277294.6A Expired - Fee Related CN106906469B (en) | 2017-04-25 | 2017-04-25 | Micro-nano nested particle melting self-bonding surface modification equipment |
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| WO (1) | WO2018196242A1 (en) |
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| CN106906469B (en) * | 2017-04-25 | 2020-08-07 | 广东工业大学 | Micro-nano nested particle melting self-bonding surface modification equipment |
| CN113019824B (en) * | 2021-03-23 | 2022-02-22 | 湖南大学 | Ultrasonic cavitation-based method and device for modifying surfaces of inner wall and outer wall of cavity |
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| KR100911370B1 (en) * | 2005-12-06 | 2009-08-10 | 한국전자통신연구원 | The Manufacturing Method of CNT Paste and The Manufacturing Method of CNT Emitter with high Reliability |
| CN101805903B (en) * | 2010-04-12 | 2012-07-25 | 太原理工大学 | Method for cladding copper alloy layer on surface of steel substrate by laser brazing |
| CN102191497B (en) * | 2011-04-26 | 2013-01-23 | 江苏大学 | Method and device for preparing nanometer carbon-based film on surface of alloy substrate |
| CN102212818B (en) * | 2011-05-11 | 2012-08-22 | 江苏大学 | Method and device for inducing nanocrystallization of metal surface through shock wave-accelerated nano particles |
| CN103728779A (en) * | 2013-12-30 | 2014-04-16 | 深圳市华星光电技术有限公司 | Method and device for coating alignment film |
| KR101632829B1 (en) * | 2015-02-17 | 2016-06-22 | 동명대학교산학협력단 | Nano particles lamination system using nano-micro mist |
| CN106048665B (en) * | 2016-07-07 | 2018-04-06 | 广东工业大学 | A kind of method that the superoleophobic compound cast layer of Metal Substrate is prepared using hot compression deformation method |
| CN106868570B (en) * | 2017-04-25 | 2019-11-08 | 广东工业大学 | A kind of metal surface modifying device |
| CN106906510B (en) * | 2017-04-25 | 2019-11-08 | 广东工业大学 | A kind of preparation facilities that workpiece local surfaces are modified |
| CN206858660U (en) * | 2017-04-25 | 2018-01-09 | 广东工业大学 | A kind of micro-nano nesting particle fusion is self-bonded surface modifying apparatus |
| CN106868572B (en) * | 2017-04-25 | 2019-07-09 | 广东工业大学 | A kind of electrophoresis auxiliary micro-nano particle fusion self assembly surface modifying apparatus |
| CN106906469B (en) * | 2017-04-25 | 2020-08-07 | 广东工业大学 | Micro-nano nested particle melting self-bonding surface modification equipment |
| CN106891459B (en) * | 2017-04-27 | 2020-08-25 | 广东工业大学 | Local reinforced forming device and method for elastic die of microfluidic chip |
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- 2017-04-25 CN CN201710277294.6A patent/CN106906469B/en not_active Expired - Fee Related
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| CN106906469A (en) | 2017-06-30 |
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