CN107312365A - A kind of bionical hydrophobic composite coatings of novel C NT-OH and preparation method thereof - Google Patents
A kind of bionical hydrophobic composite coatings of novel C NT-OH and preparation method thereof Download PDFInfo
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- CN107312365A CN107312365A CN201610269262.7A CN201610269262A CN107312365A CN 107312365 A CN107312365 A CN 107312365A CN 201610269262 A CN201610269262 A CN 201610269262A CN 107312365 A CN107312365 A CN 107312365A
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The application is related to a kind of bionical hydrophobic composite coatings of novel C NT OH and preparation method thereof, and the composite coating can be prepared by following methods：Using CNT OH as raw material, CNT OH are added in organic solvent, it is uniformly dispersed under ultrasonication, CNT OH dispersion liquids are made, CNT OH dispersion liquids are added in film forming agent, still under ultrasonication, form cross-linked network, composite coating is made, obtained composite coating is sprayed on base material, cured processing obtains the bionical hydrophobic composite coatings of novel C NT OH.Present invention process is simple, and the preparation of large area hydrophobic surface can be achieved, and composite coating is provided simultaneously with low-surface-energy and certain microstructure, possesses good hydrophobic performance and self-cleaning performance.
Description
Technical field
The present application relates to technical field of coatings, more particularly to a kind of bionical hydrophobic composite coating and preparation method thereof.
Background technology
Seawater corrosion problem and the problem that is stained of marine organisms increasingly become human development stumbling using marine resources
Pin stone.When ships and light boats are navigated by water for a long time in ocean, substantial amounts of marine organisms can be attached on the housing of ships and light boats, and this aspect can be rotten
Ship Structure is lost, accelerates corrosion of metal, material property deterioration is caused or even destroys, on the other hand can also increase ships and light boats from quality
And ship resistance, consume more fuel；Permanent use of ocean platform also will be by stern challenge.Therefore, ship or its
When his marine structure is on active service in marine environment, it is necessary to protected in its surface spraying anticorrosion and antifouling coating,
The development experience of antifouling paint contains organotin（TBT）The stages such as anti-fouling agent, copper class anti-fouling agent, these anti-soil technologies should
With often bringing some to endanger to environment.Nowadays, the low surface energy anti-fouling paint of high-efficiency environment friendly increasingly causes the note of people
Meaning,
Because organosilicon polymer structure had both contained " organic group ", contain " inorganic structure " again, its special composition and molecule
Structure makes it show outstanding performance.Organosilicon polymer is generated stable Si-O-Si keys, therefore have by after thermal oxide
The characteristic such as excellent corrosion resistance, resistance to ag(e)ing and salt spray proof, mould proof, is commonly used for the exploitation of warship's safety coating.But it is single
The performances such as water resistance, hardness, the adhesive force of one Ludox coating are not good, have impact on application effect, utilize nanometer particle-modified silicon
It is the big study hotspot of paint field one that colloidal sol, which makes it possess more excellent performance,.CNT has special structure and performance special
Levy, such as draw ratio, specific surface area are big, can changing in Ludox with nanometer stability and abundant surface chemistry function etc.
Played an important role during property.
The content of the invention
The technical problem of solution：
The performances such as water resistance, hardness, the adhesive force of single Ludox coating in order to overcome prior art presence are not good, the present invention
Apply for there is special structure and performance characteristic using CNT that there is provided a kind of novel C NT-OH（Hydroxyl carbon nanometer
Pipe）Bionical hydrophobic composite coating and preparation method thereof.
Technical scheme is as follows：
A kind of bionical hydrophobic composite coatings of novel C NT-OH, it is characterised in that the composite coating can be prepared by following methods：
Using CNT-OH as raw material, CNT-OH is added in organic solvent, is uniformly dispersed under ultrasonication, CNT-OH is made and disperses
Liquid, CNT-OH dispersion liquids are added in film forming agent, still under ultrasonication, form cross-linked network, are made compound and are applied
Material, obtained composite coating is sprayed on base material, and cured processing obtains the bionical hydrophobic compound painting of novel C NT-OH/ film forming agents
Layer；
One or more mixtures of the organic solvent in methanol, ethanol, acetone or 1-METHYLPYRROLIDONE, film forming
One or more mixtures of the agent in Ludox, organic siliconresin or organic-silicon-modified resin.
The preferred methanol of organic solvent, the preferred Ludox of film forming agent；
CNT-OH percentage by weight is 0.1%-3% in the composite coating, and the surface of the composite coating can be 7.05-15.46mN/
M, its contact angle reaches 106-121 °, and its roll angle is 21-56 °；
CNT-OH percentage by weight is preferably 0.3% in the composite coating, and the surface of the composite coating can be preferably 7.05mN/
M, preferably 121 ° of its contact angle, preferably 21 ° of its roll angle；
A kind of preparation method of the bionical hydrophobic composite coatings of novel C NT-OH, it is characterised in that including the steps：
（1）CNT-OH's is scattered：CNT-OH is added in organic solvent, CNT-OH a diameter of 10-20nm, length is 10-
30 μm, decentralized processing is carried out to CNT-OH using processor for ultrasonic wave, ultrasonically treated 1-10 minutes is controlled, keeps CNT-OH's equal
It is even scattered；
（2）Main film forming matter is used as using film forming agent；
（3）By step（1）Resulting mixed solution is added in film forming agent, to mix also with the method for ultrasonication
The system that solution is dispersed into a stable and uniform is closed, composite coating is prepared；
（4）Base material preprocess method：The base material of aluminium alloy 6061 is made to the mm of the mm of 10 mm × 10 × 2 examination using wire cutting machine
Sample block, reuses SiC sand paper polishing sample, then will carry out being cleaned by ultrasonic 10 in coupon successively immersion deionized water and ethanol
Min, last drying at room temperature coupon is for future use；
（5）Using simple spraying equipment, by step（3）In obtained composite coating spray to step（4）The base pre-processed
On material, composite coating is formed；During spraying, gun slot is perpendicular to substrate surface, and base material is kept for 60 DEG C after being handled through drying box；At the uniform velocity
Mobile spray gun, makes substrate surface film forming uniform, and spray pressure is 0.2-0.3 MPa, and spray distance is 150-200 mm；
（6）The composite coating formed will be sprayed using vacuum drying case apparatus curing process, 60-85 DEG C of solidification temperature, during solidification
Between 1-5h, finally prepare bionical composite coating；
Here, with（1）-（6）To represent the sequencing of these steps；
In above-mentioned preparation method, one kind in methanol, ethanol, acetone or 1-METHYLPYRROLIDONE of the organic solvent or
A variety of mixtures, preferably methanol；One kind in Ludox, organic siliconresin or organic-silicon-modified resin of film forming agent or
A variety of mixtures, preferably Ludox.Preferably 80 DEG C of curing process temperature, curing process time preferred 2h, sonication treatment time
It is preferred that 4min；
The contact angle of the composite coating prepared using the above method is 121 ° to the maximum, minimum 21 ° of roll angle, and surface can be most
Low is 7.05mN/m, and saline sook still keeps good hydrophobic performance after 25 days；
Beneficial effect：
Invention introduces the viewpoint of " bionical ", is produced based on " lotus leaf effect ", " lotus leaf go out mud without contaminate " be because
For 2 points：One is that its surface has micro-nano level coarse structure, and two be the waxy substance of its surface low-surface-energy.Therefore, it is hydrophobic
The preparation of coating has two key factors：One is low-surface-energy, and two be micro-rough structure.The present invention by add CNT-OH come
Modified silicasol, small molecule functional group hydroxyl causes CNT-OH to be uniformly dispersed in the coating, and CNT-OH is by main film forming matter silicon
Colloidal sol is regularly covered, and is reacted.And attracted each other between CNT-OH by the effect of hydrogen bond so that between CNT-OH
Can occur self assembly, so that the microcosmic cross-linked structure that composite coating surface is formd, is closely wound each other.Ludox is used as master
Film forming matter is wanted, Si-O-Si keys are also crosslinked, form the microscopic protrusions of micron level, and the CNT-OH of addition can be around it
Form the microstructure of Nano grade, material is thus formed it is micro-/receive hierarchical structure.In addition, Ludox film forming matter has necessarily
Low-surface-energy performance, both synergies determine the preparation of bionical hydrophobic composite coating.The process of the present invention is simple,
Easily operation, large area operation can be realized by preparing composite coating using spraying process.In addition, the present invention prepare it is bionical hydrophobic compound
Coating possesses good hydrophobic self-cleaning performance, stability and environment-friendly performance.
Brief description of the drawings：
Fig. 1 is the preparation process flow chart of composite coating of the present invention；
Fig. 2 is influence of the CNT-OH contents to composite coating contact angle and roll angle；
Fig. 3 is the contact angle and surface energy that 0.3%CNT-OH is modified composite coating；
Fig. 4 is the contact angle and roll angle of different composite coating：0#-be not added with CNT； 1#—0.3%CNT；2#—0.3%CNT-
OH；
Fig. 5 is the SEM of coating sample：（a）0.3%CNT-OH is modified composite coating；（b）0.3%CNT is modified composite coating；（c）Clearly
Lacquer coat；
Fig. 6 is the surface microstructure distribution situation of coating：（a）0.3%CNT-OH is modified composite coating；（b）0.3%CNT is modified
Composite coating；（C) varnish coat
Fig. 7 is the surface roughness of coating：0#-be not added with CNT；1#-addition 0.3%CNT；2#-addition 0.3%CNT-OH
Fig. 8 is change of the 0.3%CNT-OH composite coatings contact angle with immersion number of days；
Embodiment：
Embodiment 1：
As shown in figure 1, the preparation method of the bionical hydrophobic composite coatings of novel C NT-OH is as follows：
（1）The preparation of CNT-OH raw materials：Percentage by weight is added in methanol solution for 0.1% CNT-OH, CNT-OH's is straight
Footpath is 10-20nm, and length is 10-30 μm, carries out decentralized processing to CNT-OH using ultrasonic processor, controls ultrasonically treated 1 point
Clock, keeps CNT-OH's dispersed；Both it ensure that CNT-OH was dispersed in methanol solution, and formed stable mixing scattered
Liquid, ensures that the CNT-OH used in invention keeps rock-steady structure, original draw ratio is kept substantially again；
（2）Ludox is used for main film forming matter；CNT-OH is inorganic modified nano-particle, so after composite coating is formed
Just the performance and certain micro-rough structure of low-surface-energy have been provided simultaneously with；
（3）By step（1）Resulting mixed solution is added in silicon sol solution, is caused also with ultrasonically treated method
Mixed solution is dispersed into the system of a stable and uniform, prepares composite coating；
（4）Base material preprocess method：The base material of aluminium alloy 6061 is made to the mm of the mm of 10 mm × 10 × 2 examination using wire cutting machine
Sample block, reuses SiC sand paper polishing sample（400-1500#）, then will enter in coupon successively immersion deionized water and ethanol
Row is cleaned by ultrasonic 10 min, and last drying at room temperature coupon is for future use；
（5）Using simple spraying equipment, by step（3）In obtained composite coating spray to step（4）The base pre-processed
On material, composite coating is formed；During spraying, gun slot is perpendicular to substrate surface, and base material is kept for 60 DEG C after being handled through drying box；At the uniform velocity
Mobile spray gun, makes substrate surface film forming uniform, and spray pressure is 0.2-0.3 MPa, and spray distance is 150-200 mm；
（6）The composite coating formed will be sprayed using vacuum drying case apparatus curing process, 60 DEG C of solidification temperature, hardening time
1h, finally prepares bionical composite coating；
The contact angle of the composite coating obtained using above-mentioned preparation method is 106 ° to the maximum, and minimum 33 ° of roll angle, surface can be low
To 13.31mN/m, saline sook still keeps good hydrophobic performance after 25 days；
Embodiment 2：
（1）The preparation of CNT-OH raw materials：The CNT-OH that percentage by weight is 3% is added to the diameter of CNT-OH in methanol solution
For 10-20nm, length is 10-30 μm, carries out decentralized processing to CNT-OH using ultrasonic processor, controls ultrasonically treated 10 points
Clock, keeps CNT-OH's dispersed；Both it ensure that CNT-OH was dispersed in methanol solution, and formed stable mixing scattered
Liquid, ensures that the CNT-OH used in invention keeps rock-steady structure, original draw ratio is kept substantially again；
（2）Ludox is used for main film forming matter；CNT-OH is inorganic modified nano-particle, so after composite coating is formed
Just the performance and certain micro-rough structure of low-surface-energy have been provided simultaneously with；
（3）By step（1）Resulting mixed solution is added in silicon sol solution, is caused also with ultrasonically treated method
Mixed solution is dispersed into the system of a stable and uniform, prepares composite coating；
（4）Base material preprocess method：The base material of aluminium alloy 6061 is made to the mm of the mm of 10 mm × 10 × 2 examination using wire cutting machine
Sample block, reuses SiC sand paper polishing sample（400-1500#）, then will enter in coupon successively immersion deionized water and ethanol
Row is cleaned by ultrasonic 10 min, and last drying at room temperature coupon is for future use；
（5）Using simple spraying equipment, by step（3）In obtained composite coating spray to step（4）The base pre-processed
On material, composite coating is formed；During spraying, gun slot is perpendicular to substrate surface, and base material is kept for 60 DEG C after being handled through drying box；At the uniform velocity
Mobile spray gun, makes substrate surface film forming uniform, and spray pressure is 0.2-0.3 MPa, and spray distance is 150-200 mm；
（6）The composite coating formed will be sprayed using vacuum drying case apparatus curing process, 85 DEG C of solidification temperature, hardening time
5h, finally prepares bionical composite coating；
The contact angle of the composite coating obtained using above-mentioned preparation method is 104 ° to the maximum, and minimum 56 ° of roll angle, surface can be low
To 15.46mN/m, saline sook still keeps good hydrophobic performance after 25 days；
Embodiment 3：
（1）The preparation of CNT-OH raw materials：Percentage by weight is added in methanol solution for 0.3% CNT-OH, CNT-OH's is straight
Footpath is 10-20nm, and length is 10-30 μm, carries out decentralized processing to CNT-OH using ultrasonic processor, controls ultrasonically treated 4 points
Clock, keeps CNT-OH's dispersed；Both it ensure that CNT-OH was dispersed in methanol solution, and formed stable mixing scattered
Liquid, ensures that the CNT-OH used in invention keeps rock-steady structure, original draw ratio is kept substantially again；
（2）Ludox is used for main film forming matter；CNT-OH is inorganic modified nano-particle, so after composite coating is formed
Just the performance and certain micro-rough structure of low-surface-energy have been provided simultaneously with；
（3）By step（1）Resulting mixed solution is added in silicon sol solution, is caused also with ultrasonically treated method
Mixed solution is dispersed into the system of a stable and uniform, prepares composite coating；
（4）Base material preprocess method：The base material of aluminium alloy 6061 is made to the mm of the mm of 10 mm × 10 × 2 examination using wire cutting machine
Sample block, reuses SiC sand paper polishing sample（400-1500#）, then will enter in coupon successively immersion deionized water and ethanol
Row is cleaned by ultrasonic 10 min, and last drying at room temperature coupon is for future use；
（5）Using simple spraying equipment, by step（3）In obtained composite coating spray to step（4）The base pre-processed
On material, composite coating is formed；During spraying, gun slot is perpendicular to substrate surface, and base material is kept for 60 DEG C after being handled through drying box；At the uniform velocity
Mobile spray gun, makes substrate surface film forming uniform, and spray pressure is 0.2-0.3 MPa, and spray distance is 150-200 mm；
（6）The composite coating formed will be sprayed using vacuum drying case apparatus curing process, 80 DEG C of solidification temperature, hardening time
2h, finally prepares bionical composite coating；
Here, with（1）-（6）To represent the sequencing of these steps；
Use the contact angle for the composite coating that above-mentioned preparation method obtains for 121 °, roll angle is 21 °, and surface can be 7.05mN/
M, saline sook still keeps good hydrophobic performance after 25 days；
The primary object of the present patent application is the preparation method of bionical hydrophobic composite coating.When CNT-OH addition reaches
0.3%（wt）When, spraying obtains composite coating after ultrasonically treated 4min, 80 DEG C of curing process temperature, curing process time 2h, most
The composite coating obtained eventually possesses most excellent hydrophobic performance and self-cleaning performance, is embodied in：CNT-OH/ Ludox
The contact angle and roll angle of bionical composite coating respectively reach 121 °, 21 °, and surface can only have 7.05mN/m, see accompanying drawing 2, Fig. 3.
Contact angle characterizes the degree that drop infiltrates the surface of solids, and roll angle characterizes the difficulty or ease that current take away pollutant from coating surface
Degree, therefore coating, with higher contact angle and during relatively low roll angle, drop is difficult to soak the surface of solids, and its current holds
Easily surface adhesion pollutant is taken away, coating shows good self-cleaning performance.In the present invention, as addition 0.3%CNT-OH
When, because CNT-OH is acted on the doping vario-property of Ludox, composite coating possesses preferable hydrophobic performance and self-cleaning performance；
The present patent application has investigated the influence of simple agitation and ultrasonication two ways to dispersion effect.Experimental result table
It is bright：The even results for the sample being ultrasonically treated are significantly better than the treatment effect of simple agitation, and as time of repose prolongs
Long, times of the CNT-OH than CNT under van der Waals interaction required for its precipitation of reuniting again is longer, and suspension is through quiet for a long time
Postpone and still keep uniform dispersity；
Equally, the present patent application has also investigated the situation without the not hydroxyl CNT of CNT, addition.Test table
It is bright, add CNT-OH and CNT-OH concentration and possess most excellent properties for 0.3% composite coating, see accompanying drawing 4.When molten in silicon
When being separately added into 0.3%CNT in glue, the contact angle that 0.3%CNT is modified composite coating does not only have 109 °, and roll angle reaches 30 °, and not
The composite coating for adding any modified Nano particle makes moderate progress compared to performance, but is modified composite coating compared with 0.3%CNT-OH
Say, hydrophobicity is relatively poor；
The preparation of the bionical hydrophobic composite coating of the present invention is to cooperate with work in low-surface-energy film forming matter and enough microstructures
With lower completion.The microstructure SEM of the bionical composite coating of the present invention is shown in accompanying drawing 5.The composite coating being modified through 0.3%CNT-OH
Surface is uneven, and with good roughness, and 0.3%CNT composite coatings surface is opposed flattened, without obvious coarse change；Clearly
Lacquer coat surface is very flat, and only a small amount of pit is present, and is obtained through nanoscope software analysis, their root mean square roughness
Degree is followed successively by 56.1nm, 43.0nm, 36.2nm.This point is consistent with SEM figure results.Meanwhile, using nanoscope softwares to each
The AFM figures for planting coating are analyzed, surface microstructure distribution situation such as Fig. 6 of coating.Fig. 7 is the surface roughness of coating.
By choosing the surfacing of low-surface-energy and the aspect of micro-rough structure two of control material surface, coating can be effectively improved
Hydrophobic performance.In the present invention, the composite coating that addition 0.3%CNT-OH is modified, because surface has good micro-rough
Structure, then cooperate with the low-surface-energy of Ludox to act on, therefore with excellent hydrophobic performance, self-cleaning performance and anti-adhesion
Energy；
The present invention has investigated the stability of bionical hydrophobic composite coating.See accompanying drawing 8.In process of the present invention, 0.3% will be added
The fluorine silicon resin composite coating saline sook of CNT-OH modifications 25 days（d）Afterwards, observation period contact angle is with the change for soaking number of days.With
The extension of soak time, the contact angle of coating is slightly reduced.But in general, each group coating is in various environment（Different temperatures,
Salinity）After 25 d of lower immersion, hydrophobicity is still kept, contact angle is both greater than 95 °.Particularly after 3 d are soaked, the contact of coating
Angle remains at 120 °, and composite coating has good hydrophobic performance and water-resistant stability；
The present invention can be described with others without prejudice to the concrete form of the spirit or essential characteristics of the present invention.Therefore, no matter from
From the point of view of which point, the embodiment above of the invention can only all be considered the description of the invention and can not limit the present invention, power
Sharp claim indicates the scope of protection of present invention, and above-mentioned explanation does not point out protection scope of the present invention, therefore,
Any change within the meaning and scope equivalent to the claims of the present invention, all it is considered as being included in claims
In the range of.
Claims (10)
1. a kind of bionical hydrophobic composite coatings of novel C NT-OH, it is characterised in that the composite coating can be prepared by following methods and obtained
：Using CNT-OH as raw material, CNT-OH is added in organic solvent, is uniformly dispersed under ultrasonication, CNT-OH is made
Dispersion liquid, CNT-OH dispersion liquids are added in film forming agent, still under ultrasonication, form cross-linked network, are made multiple
Coating is closed, obtained composite coating is sprayed on base material, cured processing obtains the bionical hydrophobic composite coatings of novel C NT-OH.
2. composite coating as claimed in claim 1, it is characterised in that the organic solvent is selected from methanol, ethanol, acetone or N-
One or more mixtures in methyl pyrrolidone, film forming agent is selected from Ludox, organic siliconresin or organic-silicon-modified tree
One or more mixtures in fat.
3. composite coating as claimed in claim 1 or 2, it is characterised in that the preferred methanol of organic solvent, the film forming agent
It is preferred that Ludox.
4. composite coating as claimed in claim 1 or 2, it is characterised in that CNT-OH percentage by weight is in the composite coating
0.1%-3%, the surface of the composite coating can be 7.05-15.46mN/m, and its contact angle reaches 106-121 °, and its roll angle is 21-
56°。
5. composite coating as claimed in claim 4, it is characterised in that CNT-OH percentage by weight is preferred in the composite coating
For 0.3%, the surface of the composite coating can be preferably 7.05mN/m, preferably 121 ° of its contact angle, preferably 21 ° of its roll angle.
6. a kind of preparation method of the bionical hydrophobic composite coatings of novel C NT-OH in 1-5 such as claim as described in any one,
It is characterised in that it includes the steps：
（1）CNT-OH's is scattered：CNT-OH is added in organic solvent, CNT-OH a diameter of 10-20nm, length is 10-
30 μm, decentralized processing is carried out to CNT-OH using processor for ultrasonic wave, ultrasonically treated 1-10 minutes is controlled, keeps CNT-OH's equal
It is even scattered；
（2）Main film forming matter is used as using film forming agent；
（3）By step（1）Resulting mixed solution is added in film forming agent, to mix also with the method for ultrasonication
The system that solution is dispersed into a stable and uniform is closed, composite coating is prepared；
（4）Base material preprocess method：The base material of aluminium alloy 6061 is made to the mm of the mm of 10 mm × 10 × 2 examination using wire cutting machine
Sample block, reuses SiC sand paper polishing sample, then will carry out being cleaned by ultrasonic 10 in coupon successively immersion deionized water and ethanol
Min, last drying at room temperature coupon is for future use；
（5）Using spraying equipment, by step（3）In obtained composite coating spray to step（4）On the base material pre-processed, shape
Into composite coating；During spraying, gun slot is perpendicular to substrate surface, and base material is kept for 60 DEG C after being handled through drying box；At the uniform velocity mobile spray
Rifle, makes substrate surface film forming uniform, and spray pressure is 0.2-0.3 MPa, and spray distance is 150-200 mm；
（6）The composite coating formed will be sprayed using vacuum drying case apparatus curing process, solidification temperature is 60-85 DEG C, solidification
Time is 1-5h, finally prepares bionical composite coating；
Here, with（1）-（6）To represent the sequencing of these steps.
7. preparation method as claimed in claim 6, it is characterised in that the organic solvent is selected from methanol, ethanol, acetone or N-
One or more mixtures in methyl pyrrolidone, film forming agent is selected from Ludox, organic siliconresin or organic-silicon-modified tree
One or more mixtures in fat.
8. preparation method as claimed in claim 7, it is characterised in that the organic solvent is preferably methanol, the film forming agent is excellent
Elect Ludox as.
9. preparation method as claimed in claim 8, it is characterised in that：Preferably 80 DEG C of curing process temperature, curing process time
It is preferred that 2h, the preferred 4min of sonication treatment time.
10. preparation method as claimed in claim 9, it is characterised in that：The contact angle of the composite coating is 121 °, rolling to the maximum
Minimum 21 ° of angle, surface can as little as 7.05mN/m, be basically unchanged with hydrophobic performance after saline sook 25 days.
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|---|---|---|---|---|
| CN112662209A (en) * | 2020-12-25 | 2021-04-16 | 绍兴市上虞区武汉理工大学高等研究院 | Novel super-hydrophobic self-cleaning spray and preparation method thereof |
| CN112662209B (en) * | 2020-12-25 | 2022-06-17 | 绍兴市上虞区武汉理工大学高等研究院 | Super-hydrophobic self-cleaning spray and preparation method thereof |
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