CN108912745A - A kind of super-drainage structure and preparation method thereof - Google Patents
A kind of super-drainage structure and preparation method thereof Download PDFInfo
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Abstract
The present invention provides a kind of super-drainage structure and preparation method thereof, which includes substrate；Fastening coating above substrate；And the super-hydrophobic coat for being made and being located above fastening coating of super hydrophobic coating.The forming method of the super-drainage structure includes using solvent scouring substrate；Fastening coating is formed above substrate；And super-hydrophobic coat is formed on fastening coating.This method effectively raises super-hydrophobic coat adhesive force, wearability and the impact resistance, and simple process, can be widely applied.
Description
Technical field
The present invention relates to a kind of super-drainage structures, more particularly, to a kind of super-drainage structure and preparation method thereof.
Background technique
Super-hydrophobic coat is since it in the excellent property that automatically cleaning field is shown has obtained extensive concern, to super thin
The research of water coating also achieves many achievements.Currently, there are two ways to preparing super-hydrophobic coat：One is in low-surface-energy
Material surface constructs micron and nano, and another kind is in the surface modification low-surface energy substance with micron and nano.But
It is that both methods all has the unfavorable problems such as process flow is complicated, surface micro-structure is easy to be destroyed.Meanwhile it using super
The preparation method of hydrophobic coating is more complex, required equipment costly, need to expend a large amount of manpower and material resources etc..
In addition, the problems such as existing super-hydrophobic coat mostly has weatherability and wears no resistance, service life is short, these are asked
The presence of topic all seriously constrains the popularization and application of super-hydrophobic coat.Existing method be usually utilize the biggish resin of intensity or
It is that the method that matrix resin is crosslinked is improved into strength of coating using crosslinking agent.But the super-hydrophobic painting prepared by these methods
Layer intensity is not still high, does not have the condition of large-scale popularization application.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of super-drainage structure, which is prepared for using fastening coating
It is a kind of to improve the surface super-hydrophobics such as various metal materials, inorganic non-metallic material, high molecular material (plastics, rubber, fiber)
The super-hydrophobic coat of energy；Meanwhile the super-drainage structure further improves the super-hydrophobic coat by the enhancing to fastening coating
Intensity, and adhesive force, wearability and the impact resistance etc. for enhancing existing super-hydrophobic coat.
The present invention provides a kind of hydrophobic structures, including：Substrate；Coating is fastened, is located above substrate；And hydrophobic painting
Layer is made of hydrophobic coating and is located above fastening coating.
In above-mentioned hydrophobic structure, hydrophobic structure is 150 ° of water contact angle > of super-drainage structure.
In above-mentioned hydrophobic structure, fastening coating includes the fastening coating paste with 1~2 times of dilution agent of dilution.
In above-mentioned hydrophobic structure, diluent is ethyl acetate or toluene.
In above-mentioned hydrophobic structure, fastening coating paste is epoxide-resin glue or phenolic resin glue.
In above-mentioned hydrophobic structure, fastening coating includes one kind or more of double-sided adhesive, organic high-temp glue and inorganic high-temp glue
Kind.
In above-mentioned hydrophobic structure, organic high-temp glue includes organic silica gel, phenolic resin glue, urea-formaldehyde resin adhesive and asphalt mixtures modified by epoxy resin
Rouge glue it is one or more.
In above-mentioned hydrophobic structure, inorganic high-temp glue includes the high temperature resistant inorganic adhesive of ZS~1071.
In above-mentioned hydrophobic structure, the super hydrophobic coating that hydrophobic coating is 150 ° of water contact angle >, super hydrophobic coating is to receive
The TiO of rice corpuscles super hydrophobic coating, silicon fluoride hydrophobically modified2Super hydrophobic coating or WNS.
In above-mentioned hydrophobic structure, nanoparticle super hydrophobic coating includes：Titanium particles, silicon dioxide granule, silane
Coupling agent and dehydrated alcohol, wherein the mass ratio of Titanium particles and silicon dioxide granule is 0:1~1:10；Silane coupling agent
Mass ratio with silicon dioxide granule is 1:50~1:100；And the gross mass and nothing of Titanium particles and silicon dioxide granule
The mass ratio of water-ethanol is 1:10~1:100.
In above-mentioned hydrophobic structure, silane coupling agent is hydrophobic silane coupling agent.
In above-mentioned hydrophobic structure, Titanium particles are micro particles, and silicon dioxide granule is nanoparticle.
The present invention also provides a kind of methods for preparing hydrophobic structure, include the following steps：With solvent scouring substrate；In base
Fastening coating is formed above plate；And hydrophobic coating is formed on fastening coating.
In the above-mentioned methods, solvent is dehydrated alcohol.
In the above-mentioned methods, forming fastening coating includes：Coating paste is fastened with dilution dilution agent, obtains mixed solution；
And mixed solution is applied on the surface of substrate, form fastening coating.
In the above-mentioned methods, forming hydrophobic coating includes：Before fastening coating does not solidify also, hydrophobic coating is sprayed to
On the surface for fastening coating；And after hydrophobic coating solidification, obtain hydrophobic coating.
In the above-mentioned methods, forming fastening coating includes：Fastening coating is pasted or smeared on the surface of the substrate.
In the above-mentioned methods, forming hydrophobic coating includes：Hydrophobic coating is sprayed on the surface of fastening coating；And
After hydrophobic coating solidification, hydrophobic coating is obtained.
In the above-mentioned methods, forming hydrophobic coating includes：Before fastening coating does not solidify also, hydrophobic coating is sprayed to
On the surface for fastening coating；And after hydrophobic coating solidification, obtain hydrophobic coating.
In the above-mentioned methods, forming hydrophobic coating includes：Coating paste is fastened with dilution dilution agent, obtains mixed solution；
Mixed solution is applied on the surface of substrate, glue surface is formed；Before mixed solution does not solidify also, hydrophobic coating is sprayed to
In glue surface；And after hydrophobic coating solidification, obtain hydrophobic coating.
The present invention improves various metal materials, inorganic non-metallic material, macromolecule material by being prepared into fastening coating
Expect the super-drainage structure of surface super hydrophobics performances such as (plastics, rubber, fibers).And pass through the improvement to fastening coating, enhancing
The intensity of super-hydrophobic coat, greatly improves adhesive force, wearability and the resistance to punching of super-hydrophobic coat in the super-drainage structure
Hitting property；Simultaneously by adding one layer of fastening coating to super-drainage structure, the adhesive force, wear-resisting of super-hydrophobic coat is further enhanced
Property and impact resistance.Meanwhile it is simple for process, and can be applied to existing super hydrophobic coating, have large-scale popularization and answers
Condition.
Detailed description of the invention
Fig. 1 is nanoparticle super-drainage structure schematic diagram；1- substrate, 2- fasten coating, 3- nanoparticle super-hydrophobic coat.
Fig. 2 is FAS-TiO2Super-drainage structure；1- substrate, 2 '-fastening coatings, 3 '-FAS-TiO2Super-hydrophobic coat.
Fig. 3 is WNS super-drainage structure；1- substrate, 2 "-fastening coatings, 3 "-WNS super-hydrophobic coats.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, those of ordinary skill in the art's all other embodiment obtained, shall fall within the protection scope of the present invention.
It is complicated for existing super-hydrophobic coat preparation process, and preparation super-hydrophobic coat intensity it is poor the problems such as,
The super-drainage structure that the present invention provides a kind of preparation processes is simple, has excellent performance, and the super-drainage structure enhance it is super thin
The intensity of water coating, so that super-hydrophobic coat therein has high adhesion force, good wearability and impact resistance.
The present invention provides a kind of 150 ° of water contact angle > of super-drainage structure, which includes：Substrate；Fastening
Coating, the fastening coating above substrate；And it is made and is located at super-hydrophobic above fastening coating of super hydrophobic coating
Coating；Wherein, super hydrophobic coating is the TiO of nanoparticle super hydrophobic coating, silicon fluoride hydrophobically modified2(FAS-TiO2) super-hydrophobic
Coating or WNS；Nanoparticle super hydrophobic coating includes titanium oxide micro particles, Nano particles of silicon dioxide, hydrophobic silane idol
Join agent and dehydrated alcohol, wherein the mass ratio of Titanium particles and silicon dioxide granule is 0:1~1:10；Silane coupling agent with
The mass ratio of silicon dioxide granule is 1:50~1:100；And the gross mass of Titanium particles and silicon dioxide granule with it is anhydrous
The mass ratio of ethyl alcohol is 1:10~1:100.
The present invention also provides a kind of methods for preparing the super-drainage structure, and this approach includes the following steps：
Substrate is cleaned to clean surface with dehydrated alcohol；After surface do it is clean after, with dilution dilution agent fastening coating paste 1~
2 times, obtain mixed solution；Mixed solution is applied on the surface of substrate, fastening coating is formed；It is also incomplete in mixed solution
Before solidification, super hydrophobic coating is sprayed on the surface of fastening coating；And it is completely solid in fastening coating and super-hydrophobic coat
After change, super-drainage structure is obtained；Wherein, fastening coating paste includes one of epoxide-resin glue and phenolic resin glue；It is dilute
Releasing agent includes one of ethyl acetate and toluene.
The present invention also provides a kind of methods for preparing the super-drainage structure, include the following steps：
Substrate is cleaned to clean surface with dehydrated alcohol；After surface do it is clean after, on the surface of the substrate paste or smear fastening
Coating；Before fastening coating is not fully cured also, super hydrophobic coating is sprayed on fastening coating；In fastening coating and super thin
After water coating is fully cured, super-drainage structure is obtained；Wherein, fastening coating includes double-sided adhesive, organic high-temp glue and inorganic height
Warm glue it is one or more；Organic high-temp glue includes the one of organic silica gel, phenolic resin glue, urea-formaldehyde resin adhesive and epoxide-resin glue
Kind is a variety of；Inorganic high-temp glue includes the high temperature resistant inorganic adhesive of ZS~1071.
The present invention also provides a kind of methods for preparing the super-drainage structure, include the following steps：
Substrate is cleaned to clean surface with dehydrated alcohol；After surface do it is clean after, with dilution dilution agent fastening coating paste 1~
2 times, obtain mixed solution；Mixed solution is applied to the surface of substrate, and smears one or more layers, forms glue surface；Mixed
Before conjunction solution is not fully cured also, super hydrophobic coating is sprayed in glue surface；And it is complete in fastening coating and super-hydrophobic coat
After all solidstate, super-drainage structure is obtained.
Embodiment one
Prepare nanoparticle super hydrophobic coating：By 1:10 silicon dioxide granule and dehydrated alcohol 800r/min stirring
10min；With silane coupling agent：Silicon dioxide granule is 1:Silane coupling agent is added in 50 ratio, and 700r/min stirs 30min；
Obtain nanoparticle super hydrophobic coating；
Substrate is cleaned to clean surface with dehydrated alcohol；After surface do it is clean after, with ethyl acetate by epoxide-resin glue dilute 1
Times, obtain mixed solution；Mixed solution is applied on the surface of substrate, fastening coating is formed；
Before mixed solution is not fully cured also, nanoparticle super hydrophobic coating is sprayed to the surface of fastening coating
On；And after fastening coating and nanoparticle super-hydrophobic coat are fully cured, it is super thin to obtain nanoparticle as shown in Figure 1
Water-bound；Measure its water contact angle, adhesive force, wearability and impact resistance.
Embodiment two
Prepare nanoparticle super hydrophobic coating：With (Titanium particles+silicon dioxide granule)：Dehydrated alcohol is 1:50, and
Titanium particles：Silicon dioxide granule is 1:Silicon dioxide granule and dehydrated alcohol, 700r/min stirring is added in 10 ratio
15min；With silane coupling agent：Silicon dioxide granule is 1:Silane coupling agent is added in 80 ratio, and 900r/min stirs 30min；
Titanium oxide is being added, 900r/min stirs 20min, obtains nanoparticle super hydrophobic coating.
Substrate is cleaned to clean surface with dehydrated alcohol；After surface do it is clean after, on the surface of the substrate paste one layer of double-sided adhesive；
Super hydrophobic coating is sprayed on the surface of the double-sided adhesive；After nanoparticle super-hydrophobic coat is fully cured, nanometer is obtained
Particle super-drainage structure；Measure its water contact angle, adhesive force, wearability and impact resistance.
Embodiment three
Prepare nanoparticle super hydrophobic coating：(Titanium particles+silicon dioxide granule)：Dehydrated alcohol is 1:100, and oxygen
Change titanium particle：Silicon dioxide granule is 0.3:Silicon dioxide granule and dehydrated alcohol, 700r/min stirring is added in 5 ratio
12min；With silane coupling agent：Silicon dioxide granule is 1:Silane coupling agent is added in 100 ratio, and 900r/min stirs 40min；
Titanium oxide is being added, 700r/min stirs 25min, obtains nanoparticle super hydrophobic coating.
Substrate is cleaned to clean surface with dehydrated alcohol；After surface do it is clean after, with toluene by phenolic resin glue dilute 2 times,
Obtain mixed solution；Mixed solution is applied to the surface of substrate, and is sprayed on the surface of fastening coating (urea-formaldehyde resin adhesive)
Multilayer is applied, glue surface is formed；Before mixed solution is not fully cured also, super hydrophobic coating is sprayed in glue surface；It is molten mixing
After liquid and nanoparticle super-hydrophobic coat are fully cured, nanoparticle super-drainage structure is obtained；Measure its water contact angle, attachment
Power, wearability and impact resistance.
Example IV
Prepare nanoparticle super hydrophobic coating：With (Titanium particles+silicon dioxide granule)：Dehydrated alcohol is 1:80, and
Titanium particles：Silicon dioxide granule is 1:Silicon dioxide granule and dehydrated alcohol, 700r/min stirring is added in 10 ratio
15min；With silane coupling agent：Silicon dioxide granule is 1:Silane coupling agent is added in 50 ratio, and 900r/min stirs 30min；
Titanium oxide is being added, 900r/min stirs 20min, obtains nanoparticle super hydrophobic coating.
Substrate is cleaned to clean surface with dehydrated alcohol；After surface do it is clean after, with toluene by phenolic resin glue dilute 1 times,
Obtain mixed solution；Mixed solution is applied to the surface of substrate, and in fastening coating (organic silica gel+phenolic resin glue)
One layer is smeared on surface, forms glue surface；Before mixed solution is not fully cured also, nanoparticle super hydrophobic coating is sprayed to
In glue surface；After mixed solution and nanoparticle super-hydrophobic coat are fully cured, nanoparticle super-drainage structure is obtained；Measurement
Its water contact angle, adhesive force, wearability and impact resistance.
Embodiment five
Substrate is cleaned to clean surface with dehydrated alcohol；After surface do it is clean after, on the surface of the substrate smear one layer of asphalt mixtures modified by epoxy resin
Rouge glue forms fastening coating, before fastening coating is not fully cured also, by the TiO of silicon fluoride hydrophobically modified2Super hydrophobic coating
It sprays on the surface of fastening coating；In the TiO of fastening coating and silicon fluoride hydrophobically modified2It is fully cured in super-hydrophobic coat
Afterwards, the TiO of silicon fluoride hydrophobically modified as shown in Figure 2 is obtained2Super-drainage structure；Measure its water contact angle, adhesive force, wearability
And impact resistance.
Embodiment six
Substrate is cleaned to clean surface with dehydrated alcohol；After surface do it is clean after, on the surface of the substrate smear one layer of ZS~
1071 high temperature resistant inorganic adhesives form fastening coating, before fastening coating is not fully cured also, by WNS super hydrophobic coating
It sprays on the surface of fastening coating；After fastening coating and WNS super-hydrophobic coat are fully cured, obtain as shown in Figure 3
WNS super-drainage structure；Measure its water contact angle, adhesive force, wearability and impact resistance.
Above smear uses the adjustable smearing instrument of KTQ-II；Spraying is under room temperature, in the compressed air of 0.3~0.5MPa
It is lower to be sprayed using low-pressure spray gun；Solidification then uses 60~80 DEG C of curing ovens.
The test method of the above contact angle is sessile drop method commonly used in the art, test droplets 5 μ L, test equipment OCA20
~contact angle tester；Wearability is then measured using method commonly used in the art；Impact resistance is using commonly used in the art
Method measurement.
The parameters such as water contact angle, adhesive force, wearability and the impact resistance tested by test, embodiment one to six
As a result as shown in table 1 below：
Table 1, test result
As can be seen from Table 1, the work of nanoparticle super hydrophobic coating and nanoparticle super-hydrophobic coat is prepared in the present invention
Skill is simple, at low cost.In addition, by adjusting the titanium oxide micro particles of super hydrophobic coating and the ratio of Nano particles of silicon dioxide
Example, so that the micron and nano surface that its super hydrophobic coating has had, and adjust the titanium oxide micro particles and titanium dioxide
The ratio of silicon nano and dehydrated alcohol ensure that the hydrophobic performance of the super hydrophobic coating, so that the equal > of its water contact angle
150°。
In addition, by adjusting fastening coating paste and diluent it can be seen from the test result of the embodiment one in table 1
Ratio, optimizes the property of fastening coating, and the spraying effect that ensure that makes its adhesive force be up to 8.9MPa, wearability
(1000g/1000r) down to 17mg, impact resistance is up to 62cm, and effect is obvious, is prepared for the super-drainage structure of performance enhancement.
The method provided by the invention for preparing super-drainage structure it can be seen from the test result of embodiment two in table 1,
By pasting and smear fastening coating, the intensity of super-drainage structure is further enhanced, its adhesive force is made to be up to 9.5MPa, it is wear-resisting
For property (1000g/1000r) down to 16mg, impact resistance is up to 69cm, and simple process, can be widely applied.
The side provided by the invention for preparing super-drainage structure it can be seen from the test result of embodiment three, four in table 1
Method is further enhanced super by using fastening coating that is, in the diluted fastening coating paste of substrate surface smearing diluent
The intensity of hydrophobic coating makes its adhesive force be up to 11.2MPa, and wearability (1000g/1000r) is most down to 13mg, impact resistance
Up to 75cm, simultaneously because its to fastening coating further enhance, overcome fastening coating it is thicker, it is subsequent spraying it is super-hydrophobic
The problem of coating cracking is easily caused when coating, and method is simple, it is easy to operate, it is suitble to the use of large-sized structural parts.
Meanwhile super-drainage structure provided by the invention it can be seen from the test result of the embodiment five, six in table 1
Preparation method fastens coating by introducing, also enhances FAS-TiO2The production of the Zi Xi Lay company of super hydrophobic coating and purchase
The intensity of the super-hydrophobic coat of WNS product, for FAS-TiO2Super hydrophobic coating, adhesive force are up to 9.2MPa, wearability
(1000g/1000r) is up to 71cm down to 6.1mg, impact resistance；For WNS super hydrophobic coating, adhesive force is up to 9.8MPa,
For wearability (1000g/1000r) down to 9.8mg, impact resistance is up to 72cm；Achieve good effect, show this method for
Existing super hydrophobic coating is applicable in, and the large scale application of super-hydrophobic coat is greatly facilitated.
It will be understood by those skilled in the art that above embodiments are only exemplary embodiments, without departing substantially from spirit of the invention
In the case where range, a variety of variations can be carried out, replaced and changed.
Claims (20)
1. a kind of hydrophobic structure, which is characterized in that including：
Substrate；
Coating is fastened, is located above the substrate；And
Hydrophobic coating is made of hydrophobic coating and is located above the fastening coating.
2. hydrophobic structure according to claim 1, which is characterized in that the hydrophobic structure is 150 ° of water contact angle > super
Hydrophobic structure.
3. hydrophobic structure according to claim 1, which is characterized in that the fastening coating includes with dilution dilution agent 1~2
Fastening coating paste again.
4. hydrophobic structure according to claim 3, which is characterized in that the diluent is ethyl acetate or toluene.
5. hydrophobic structure according to claim 4, which is characterized in that the fastening coating paste is epoxide-resin glue or phenol
Urea formaldehyde glue.
6. hydrophobic structure according to claim 1, which is characterized in that the fastening coating includes double-sided adhesive, organic high temperature
Glue and inorganic high-temp glue it is one or more.
7. hydrophobic structure according to claim 6, organic high-temp glue includes organic silica gel, phenolic resin glue, ureaformaldehyde
Resin glue and epoxide-resin glue it is one or more.
8. hydrophobic structure according to claim 6, the inorganic high-temp glue includes the high temperature resistant inorganic adhesive of ZS~1071.
9. hydrophobic structure according to claim 1, which is characterized in that the hydrophobic coating is 150 ° of water contact angle > super
Hydrophobic coating, the super hydrophobic coating are the TiO of nanoparticle super hydrophobic coating, silicon fluoride hydrophobically modified2Super hydrophobic coating or
WNS。
10. hydrophobic structure according to claim 9, which is characterized in that the nanoparticle super hydrophobic coating includes：
Titanium particles, silicon dioxide granule, silane coupling agent and dehydrated alcohol,
Wherein, the mass ratio of the Titanium particles and the silicon dioxide granule is 0:1~1:10；
The mass ratio of the silane coupling agent and the silicon dioxide granule is 1:50~1:100；And
The mass ratio of the gross mass of the Titanium particles and the silicon dioxide granule and the dehydrated alcohol is 1:10~1:
100。
11. hydrophobic structure according to claim 10, which is characterized in that the silane coupling agent is hydrophobic silane coupling
Agent.
12. hydrophobic structure according to claim 10, which is characterized in that the Titanium particles are micro particles, described
Silicon dioxide granule is nanoparticle.
13. a kind of method for preparing hydrophobic structure, which is characterized in that include the following steps：
With solvent scouring substrate；
It is rectangular at fastening coating on the substrate；And
Hydrophobic coating is formed on the fastening coating.
14. according to the method for claim 13, which is characterized in that the solvent is dehydrated alcohol.
15. according to the method for claim 13, which is characterized in that forming the fastening coating includes：
Coating paste is fastened with dilution dilution agent, obtains mixed solution；And
The mixed solution is applied on the surface of the substrate, forms the fastening coating.
16. according to the method for claim 15, which is characterized in that forming the hydrophobic coating includes：
Before the fastening coating does not solidify also, hydrophobic coating is sprayed on the surface of the fastening coating；And
After hydrophobic coating solidification, the hydrophobic coating is obtained.
17. according to the method for claim 13, which is characterized in that forming the fastening coating includes：
In the surface mount or the smearing fastening coating of the substrate.
18. according to the method for claim 17, which is characterized in that forming the hydrophobic coating includes：
Hydrophobic coating is sprayed on the surface of the fastening coating；And
After hydrophobic coating solidification, the hydrophobic coating is obtained.
19. according to the method for claim 17, which is characterized in that forming the hydrophobic coating includes：
Before the fastening coating does not solidify also, hydrophobic coating is sprayed on the surface of the fastening coating；And
After hydrophobic coating solidification, the hydrophobic coating is obtained.
20. according to the method for claim 17, which is characterized in that forming the hydrophobic coating includes：
Coating paste is fastened with dilution dilution agent, obtains mixed solution；
The mixed solution is applied on the surface of the substrate, forms glue surface；
Before the mixed solution does not solidify also, hydrophobic coating is sprayed in the glue surface；And
After hydrophobic coating solidification, the hydrophobic coating is obtained.
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