CN105237797B - With super lubricated surface material of groove-like substrate and preparation method thereof - Google Patents
With super lubricated surface material of groove-like substrate and preparation method thereof Download PDFInfo
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- CN105237797B CN105237797B CN201510593657.8A CN201510593657A CN105237797B CN 105237797 B CN105237797 B CN 105237797B CN 201510593657 A CN201510593657 A CN 201510593657A CN 105237797 B CN105237797 B CN 105237797B
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Abstract
The present invention is to provide one kind to have super lubricated surface material of groove-like substrate and preparation method thereof.Cobaltosic oxide is grown on multistage groove-like substrate by hydro-thermal method, micro-nano secondary structure surface is obtained, after being impregnated with perfluor lubricating fluid, obtains the super lubricated surface of micro/nano level.This micro-nano multistage surface texture effectively can inhibit lubricating fluid to flow out, and surface is made to keep superslide for a long time.This super lubricated surface all has lubricity to low surface tension liquid, in addition also has automatically cleaning, antifouling, waterproof, Anti-ice-and-snow, anti-oxidant, the anticorrosive and anti-fog performance of drag reduction.
Description
Technical field
The present invention relates to a kind of surfacings and preparation method thereof.More particularly in a kind of substrate with groove-like
Grow the super lubricated surface material preparation method of cobaltosic oxide.
Background technique
The environment of human survival is without being not present in bacterium or microorganism, from the household items such as kitchen tools, lavatory of daily life
Antifouling, glass door and window etc. is defended, to the application in the technologies such as the industrial productions such as medical treatment, high-tech biology, chemical industry, such as protein molecule
Anti-pollution, blood pollution, petroleum pipeline and ship drag reduction etc..Over time, bacterium and other microorganisms will be slowly attached
To in equipment or medical instrument used, will lead to the corrosion of instrument and equipment particle-bound bacteria part, will cause medical thing in this way
Therefore increase hull fuel consumption and frictional resistance, petroleum pipeline fracture or reduce the problems such as production efficiency increases cost, it seriously affects
Daily life and industrial processes, to also counteract China's industry and the development of medical instrument.
In order to inhibit the attachment of the microorganisms such as bacterium and to the corrosion of instrument and equipment, a kind of method is to make on the surface of the substrate
Standby one layer of super-hydrophobic film layer, it is 150 ° or more that so-called super-hydrophobic film layer, which is exactly to the static contact angle of water, and roll angle is less than 5 °
Surface.But most of super hydrophobic surface only has Adhesion Resistance to water, very not firm, corrosion resistance is very poor, does not have also anti-
The performances such as ice and snow, anti-oxidant, anti-fog can not be placed on for a long time in the environment of the presence of the microorganisms such as bacterium.So being now to make
It is standby to go out more there is the surface of application than super hydrophobic surface.Referring to: Zhao L, Liu Q, Gao R, Wang J, Yang WL,
et al.[J].Corros.Sci.,2014,177-183.Wang N.,Xiong D.S.[J].Appl.Surf.Sci.2014,
603-608。
Summary of the invention
The purpose of the present invention is to provide one kind can effectively inhibit the rapidly losing of lubricating fluid, passes through the side of slow release
Formula, which reaches prolonged application, has the super lubricated surface material of groove-like substrate.The object of the invention is also to provide one kind to have
The preparation method of the super lubricated surface material of groove-like substrate.
The super lubricated surface material of groove-like substrate that has of the invention includes multistage groove-like substrate, in multistage groove-like base
The super lubricated surface that the micro-nano multilevel structure cobaltosic oxide grown on bottom obtains after lubricating fluid modification.
The multistage groove-like substrate is the more of nickel foam, sponge, carbon cloth, the porous metals of anodic oxidation or differential arc oxidation
Mesoporous metal.
It is of the invention with the super lubricated surface material of groove-like substrate the preparation method comprises the following steps: by hydro-thermal method with multistage
Cobaltosic oxide is grown in groove-like substrate, obtains micro-nano secondary structure surface, after being impregnated with perfluor lubricating fluid, obtains micro-nano
The super lubricated surface of meter level.
Preparation method with the super lubricated surface material of groove-like substrate of the invention can also include:
1, the method for growing cobaltosic oxide on multistage groove-like substrate by hydro-thermal method are as follows: by ultrasound
With multistage groove-like substrate, mix and be placed in reaction kettle with cabaltous nitrate hexahydrate, urea and ammonium fluoride, be put into 110 DEG C of bakings
5h is reacted in case.
2, it is described with perfluor lubricating fluid immersion be put into perfluor lubricating fluid impregnate 12~for 24 hours.
The mentality of designing of super lubricated surface of the invention is four oxidations by the growth of fine-nano multilevel structure in substrate
Three cobalts obtain super lubricated surface after lubricating fluid is modified.The cobaltosic oxide for constructing this micro-nano multilevel structure can
Play the role of that lubricating fluid is inhibited quickly to flow out in subsequent obtained superslide surface, plays slow release, keep superslide for a long time
Performance.
Then super lubricated surface in the present invention is growing one layer of micro-nano first by constructing nanometer porous lamellar structure
The multistage laminated structure of rice, finally modifies to obtain super lubricated surface by lubricating fluid.Meanwhile this super lubricated surface provides a kind of property
It can be better than the material of super hydrophobic surface, the attachment of surface contaminant can be inhibited for a long time in the environment of bacteria breed
And the speed of corrosion, and there are the performances such as automatically cleaning, anticorrosive, antifouling, Anti-ice-and-snow, anti-oxidant, anti-fog.This is for later
Industrial development is of great significance.
This super lubricated surface can effectively inhibit blood, hexadecane, coffee, fruit juice, the adherency of soy sauce, biology, these
Flowing velocity of the complex fluid on surface is 1.5cm/s.In addition, also having good corrosion resistance, which can be in people
It places and reaches 3 months or more in work seawater (3.5%NaCl).
Compared with prior art, the present invention uses the hydro-thermal method of simple process, matrix and free of contamination cabaltous nitrate hexahydrate
(Co(NO3)2·6H2O), urea (NH2(CO)NH2) and ammonium fluoride (NH4F it) mixes, is generated through one step hydro thermal method in sample surfaces
Cobaltosic oxide.Again by having obtained super lubricated surface after the modification of DuPont Krytox lubricating oil.This method is prepared more
Level structure can effectively inhibit the rapidly losing of lubricating fluid, and prolonged application is reached by way of slow release.
The method of this super lubricated surface of preparation is suitable for any with multistage groove-like substrate (nickel foam, sponge, carbon
The porous metals etc. of cloth, anodic oxidation or differential arc oxidation).
This super lubricated surface can be applied in household daily necessities field, as antifouling, grease proofing, glass door is defended in kitchen tools, lavatory
Window it is antifouling etc..Another is exactly the application in the technologies such as the industrial productions such as medical treatment, high-tech biology, chemical industry, such as protein
Molecule is anti-pollution, blood pollution, petroleum pipeline and naval vessels drag reduction, antifouling, aircraft and the Anti-ice-and-snow of radar etc..
Detailed description of the invention
The simulation schematic diagram of Fig. 1 micro/nano level multilevel structure.
The corrosion resistance figure of the super lubricated surface of Fig. 2 a to Fig. 2 d.
Specific embodiment
Preparation method with the super lubricated surface material of groove-like substrate of the invention mainly includes the following steps:
Step 1: base material being placed in corrosive solution, is etched into groove-like surface, is cleaned with deionized water；
Step 2: the ultrasound 30min in ethyl alcohol and distilled water respectively by base material, it will treated that drying is stand-by.0.1
~0.5g cabaltous nitrate hexahydrate (Co (NO3)2·6H2O), 0.1~0.4g urea (NH2(CO)NH2) and 0.01~0.1g ammonium fluoride
(NH4F) it is placed on magnetic agitation 30min in 70ml distilled water.Treated base material and Co (NO3)2·6H2O, NH2(CO)NH2
And NH4F mixing is placed in reaction kettle, is put into 110 DEG C of baking ovens and is reacted 5h, grows cobaltosic oxide in substrate surface；
Step 3: the material with cobaltosic oxide is immersed in 12 in perfluor lubricating fluid~for 24 hours, obtain multistage groove-like
Super lubricated surface.Perfluor lubricating fluid selects DuPonT Krytox GPL 104,105,106,203,204,205,206,207.
It illustrates below and the present invention is described in more detail.
Embodiment 1
This item novel surface material is the cobaltosic oxide of the growth of fine-nano multilevel structure on reeded substrate, warp
The modification of DuPont Krytox lubricating fluid is crossed, obtains that there is super lubricated surface material.
Preparation method is
Step 1: place the material in corrosive solution, being etched into groove-like surface, being cleaned with deionized water；
Step 2: the ultrasound 30min in ethyl alcohol and distilled water respectively by material, it will treated that drying is stand-by.0.1~
0.5g cabaltous nitrate hexahydrate (Co (NO3)2·6H2O), 0.1~0.4g urea (NH2(CO)NH2) and 0.01~0.1g ammonium fluoride
(NH4F) it is placed on magnetic agitation 30min in 70ml distilled water.Treated material and Co (NO3)2·6H2O, NH2(CO)NH2With
NH4F mixing is placed in reaction kettle, is put into 110 DEG C of baking ovens and is reacted 5h, grows cobaltosic oxide in sponge surface；
Step 3: the material with cobaltosic oxide is immersed in 12 in DuPont Krytox~for 24 hours, obtain multistage groove
The super lubricated surface of shape.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, difference: the model 104 or 105 of DuPont Krytox or 106
Or 203 or 204 or 205 or 206 or 207.
Embodiment 3
The present embodiment is the super lubricated surface material of groove-like sponge base, substantially the same manner as Example 2, difference: substrate
Material is sponge, and step 1 is changed to 2cm × 2cm sponge and impregnates 30min with perfluor lubricating fluid.
Flowing velocity of the liquid on surface is 1.5cm/s.In addition, also having good corrosion resistance, which can
It places and reaches 3 months or more in artificial seawater (3.5%NaCl).
Embodiment 4
The present embodiment is the super lubricated surface material of groove-like anodic oxidation aluminium base, substantially the same manner as Example 2, difference
Place: base material is anodised aluminium, and the anodised aluminium that step 1 is changed to the oxidation three aunts modification of 2cm × 2cm tetra- is lubricated with perfluor
Liquid impregnates 30min.
Flowing velocity of the liquid on surface is 1.5cm/s.In addition, also having good corrosion resistance, which can
It places and reaches 3 months or more in artificial seawater (3.5%NaCl).
Claims (1)
1. a kind of preparation method with the super lubricated surface material of groove-like substrate, it is characterized in that:
Step 1: base material being placed in corrosive solution, is etched into groove-like surface, is cleaned with deionized water；It is described
Base material is the porous metals of nickel foam, sponge, carbon cloth, the porous metals of anodic oxidation or differential arc oxidation；
Step 2: the ultrasound 30min in ethyl alcohol and distilled water respectively by base material, it will treated that drying is stand-by；0.1~
0.5g cabaltous nitrate hexahydrate, 0.1~0.4g urea and 0.01~0.1g ammonium fluoride are placed on magnetic agitation in 70ml distilled water
30min；Treated, and base material mixes with cabaltous nitrate hexahydrate, urea and ammonium fluoride is placed in reaction kettle, is put into 110 DEG C of bakings
5h is reacted in case, grows cobaltosic oxide in substrate surface；
Step 3: the material with cobaltosic oxide is immersed in 12 in perfluor lubricating fluid~for 24 hours, obtain the super profit of multistage groove-like
Sliding surface, perfluor lubricating fluid select DuPonT Krytox GPL 104,105,106,203,204,205,206,207.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108291324A (en) * | 2016-02-03 | 2018-07-17 | 惠普发展公司，有限责任合伙企业 | It is related to the anodization of lubricant |
| CN107857895B (en) * | 2017-11-27 | 2020-09-18 | 北京航空航天大学 | Preparation method of super-lubricating interface material with temperature responsiveness |
| CN109505115B (en) * | 2018-12-10 | 2021-02-19 | 西北大学 | Co3O4 nano-array super-hydrophobic material coating and preparation method thereof |
| CN110230641B (en) * | 2019-06-03 | 2021-06-08 | 深圳清华大学研究院 | Ultra-smooth sliding block long-distance zero-abrasion sliding device |
| CN110504062A (en) * | 2019-08-28 | 2019-11-26 | 重庆大学 | Anti-icing aerial aluminum stranded conductor of one kind and preparation method thereof |
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| CN101091947A (en) * | 2006-06-20 | 2007-12-26 | 中国科学院兰州化学物理研究所 | Method for preparing ultra hydrophobic surface on surface of metal copper |
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| CN103451688A (en) * | 2013-09-04 | 2013-12-18 | 吉林大学 | Method for preparing super-hydrophobic biomimetic surface on copper substrate |
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| CN101091947A (en) * | 2006-06-20 | 2007-12-26 | 中国科学院兰州化学物理研究所 | Method for preparing ultra hydrophobic surface on surface of metal copper |
| CN101665968A (en) * | 2008-09-04 | 2010-03-10 | 中国科学院兰州化学物理研究所 | Process method for preparing ultra-hydrophobic surface by electrochemical method |
| CN103290418A (en) * | 2013-06-24 | 2013-09-11 | 哈尔滨工业大学 | Preparation method for superamphiphobic surface of aluminum and alloy thereof |
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