CN108047776A - It is a kind of to be used for the super hydrophobic coating of road surface anti-freezing ice and its preparation, construction method - Google Patents
It is a kind of to be used for the super hydrophobic coating of road surface anti-freezing ice and its preparation, construction method Download PDFInfo
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- CN108047776A CN108047776A CN201711361590.0A CN201711361590A CN108047776A CN 108047776 A CN108047776 A CN 108047776A CN 201711361590 A CN201711361590 A CN 201711361590A CN 108047776 A CN108047776 A CN 108047776A
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- C—CHEMISTRY; METALLURGY
- 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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
- E01C11/245—Methods or arrangements for preventing slipperiness or protecting against influences of the weather for preventing ice formation or for loosening ice, e.g. special additives to the paving material, resilient coatings
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- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Abstract
The present invention relates to a kind of super hydrophobic coating for road surface anti-freezing ice and its preparation and construction methods.Hydrophobically modified is carried out to Zinc oxide nanoparticle by stearic acid and absolute ethyl alcohol, it with absolute ethyl alcohol is mixed again and is made into certain density coating, it is finally first brushed to the road surface after repeatedly spraying to cleaning again, so as to form super-hydrophobic layer on road surface, the anti-freezing ice ability under the antiskid performance and low temperature on road surface is improved, has thus delayed the freezing time of road surface in cold weather.In addition, the presence of super-hydrophobic layer effectively reduces the cohesive force between ice and road surface, deicing difficulty is reduced so as to reduce de-icing time, improves road safety, reduces traffic accident.
Description
Technical field
The present invention relates to coating and technical field of road engineering, and in particular to a kind of for the super thin of pavement of road anti-freezing ice
Water paint and its preparation and construction method.
Background technology
It is a kind of common weather phenomenon of time at the beginning of China's early winter or last month of spring in winter that sleet, which coagulates ice,.When raindrop fall from the sky
When, it, at this time will be on electric pole, trees, vegetation and road surface freeze since subaerial temperature is very low (generally below 0 DEG C)
The bright thin ice of one layer crystal jade-like stone, on meteorology this weather phenomenon referred to as " solidifying ice ".Sleet coagulates ice with thickness is thin, hardness
High, the features such as being difficult to root out, solidifying ice damage evil will cause in various degree the safety of life and property of road traffic and numerous people
Influence.
At present, the mode applied to road snow deicing mainly have artificial removing method, mechanical removal method, dispense deicing salt,
The methods of heating cable, solar energy conversion energy ice-melt snow, these method road pavements have certain effect except accumulated snow, but at majority
Reason measure is not necessarily suitable road surface and coagulates ice, and these conventional methods are all passive deicing, are not gone from source active
Remove the snow ice-melt, shows inefficiency, pollution environment, the shortcomings of road pavement protective capability is poor.Therefore, a kind of ring is researched and developed
The small active anti-freezing ice pavement technique of guarantor, the damage of efficient and road pavement is very necessary.New super hydrophobic material, because it can postpone,
It reduces and even prevents snow, ice, the white accumulation in the surface of solids completely, reduce the adhesion strength of ice, it is superior to postpone the growth of ice etc.
Performance becomes road surface anti-freezing ice technology most efficient method.
Super hydrophobic material generally refers to water droplet and the static contact angle on surface is more than 150 °, is in rolling contact angle less than 10 °, water
It drops in that super hydrophobic surface is almost nonwetting easily to be rolled, dust on the surface can also will be adhered to while body surface is departed from
Pollutants is waited to take away.There are two types of the preparation methods of super hydrophobic surface, and both approaches are in terms of material surface wetability is influenced
Start with, one kind is in hydrophobic material surface construction micro-nano coarse structure, another is coarse with the modification of low surface mass
Surface.The wide method for preparing super hydrophobic surface of application includes etching method, sol-gel method, vapour deposition process, electricity at present
Chemical method, template, alternating deposit method etc., the super hydrophobic material prepared using this advanced technology, power transmission line,
Certain achievement is achieved in the anti-icing and deicing of aviation aircraft.
The content of the invention
It is an object of the invention to promote the antiskid performance on winter road surface and hydrophobic ice-phobic energy, solidifying ice is reduced to traffic
It influences.By the way that in roadway applications super hydrophobic coating layer, zinc oxide super-hydrophobic material is introduced road surface, one layer is formed in road surface
Nanometer coarse structure, delays formation of the ice crystal in matrix surface, achievees the purpose that freezing.This method easy construction, easy deicing
And the Moisture Damage of road pavement can be reduced, the road surface after construction also has good automatically cleaning effect.To achieve the above object, this hair
Technical solution is as follows used by bright：
A kind of super hydrophobic coating for road anti-freezing ice, by being dispersed in nothing by the Zinc oxide nanoparticle of hydrophobically modified
It is formed in water-ethanol, the mass fraction of zinc oxide is 1.2%-2.0% in dispersion liquid.
The preparation method of above-mentioned anti-freezing ice super hydrophobic coating, comprises the following steps：(a) successively by stearic acid and zinc oxide nano
Rice grain is added in ethanol solution, is filtered, is dried after being uniformly mixed, grinding, obtaining hydrophobic zinc-oxide nano
Grain；(b) hydrophobic Zinc oxide nanoparticle is dispersed in ethanol solution, obtains road anti-freezing ice super hydrophobic coating.
Further, stearic addition is equivalent to the 0.5%-2.0% of ethanol solution quality in step (a).
Further, the addition of Zinc oxide nanoparticle is equivalent to ethanol solution quality in step (a)
0.9%-1.2%.
Further, the mass fraction of hydrophobic Zinc oxide nanoparticle is 1.2%-2.0% in step (b).
The construction method of above-mentioned anti-freezing ice super hydrophobic coating, comprises the following steps：(1) Street surface cleaning dedusting to be onstructed is removed
It is dry after oil；(2) by road surface of the road with the repeated multiple times coating of anti-freezing ice super hydrophobic coating after the cleaning, it is after dry
It can.
Further, first brush during roadway applications operation and once and then spray once, sprayed again once after naturally dry.
The mechanism of action of anti-freezing ice zinc oxide super-hydrophobic coating is hydrophobicity performance and microstructure based on super hydrophobic surface,
Reducing the contact area of water droplet and coating surface so that water droplet is substantially reduced in the adhesive force of road table, so as to which drop be promoted to tumble,
Delay formation of the ice crystal in matrix surface.The chemical composition of coating and the degree of roughness of stromal surface, can reduce ice and matrix
Cohesive force between surface, and come off naturally under self gravitation or make solidifying ice that brittle break occur under the action of vehicular load
So as to come off, achieve the purpose that freezing.
Zinc oxide super-hydrophobic material is introduced road surface by the present invention, and one layer of nanometer coarse structure is formed in road surface, this
The hydrophobic thin ice on road surface and antiskid performance can be effectively improved similar to the structure of lotus leaf surface.Although what is manually prepared is super thin
Water surface is vulnerable to extraneous abrasion and it is made to lose ultra-hydrophobicity, but can pass through because the coarse structure on its surface is more fragile
Spray super-hydrophobic solution again in damaged part so as to recover super-hydrophobicity, and spraying process to the reparation of surface super-hydrophobic from
Time, the limitation of number.
Compared with prior art, the invention has the advantages that：
(1) the road anti-freezing ice super hydrophobic coating provided can effectively improve pavement skid resistance condition, delay road surface cold
Freezing time under cold day gas reduces vehicle skidding rollover caused by icing under ice and snow weather, while can effectively reduce ice
Cohesive force between road surface reduces deicing difficulty so as to reduce de-icing time, improves the security performance of road, reduces traffic thing
Therefore；
(2) construction technology is simple, and road is with anti-freezing ice super hydrophobic coating by first brushing the combined processing mode sprayed afterwards
It is applied on clean dry pavement, there is super-hydrophobicity after spraying 3 times normal dryings, improve road surface anti-freezing ice performance, apply
Road surface after brush construction has certain automatically cleaning effect；
(3) repair it is simple, can be by damaged part when being subject to extraneous wear away and so that the road surface is lost super-hydrophobic ability
Again spray anti-freezing ice super hydrophobic coating so that it recovers super-hydrophobicity, and spraying process to the reparation of surface super-hydrophobic not
It is limited by time, number；
(4) component and preparation method are simple, and cost of material is low.
Specific embodiment
For those of ordinary skill in the art is made to fully understand technical scheme and advantageous effect, below in conjunction with specific
Embodiment is further described.
Embodiment 1
A kind of road anti-freezing ice super hydrophobic coating, by hydrophobic Zinc oxide nanoparticle and ethanol solution (AR,
99.5%) 1 is pressed:It is formed after 50 weight ratio mixing through magnetic agitation (30min), wherein the preparation of hydrophobic Zinc oxide nanoparticle
Method is：It weighs and accounts for the stearic acid of solution gross mass 0.6% and be added in ethanol solution and stir evenly, add and account for tristearin
The Zinc oxide nanoparticle (AR, 99.9%, 30nm) and magnetic agitation 3h of acid-ethanol solution gross mass 1.0%, by supernatant liquor
Filter paper, separatory funnel normal filtration lower floor turbid, filtering obtained solid substance dry 3h, grinding at 150 DEG C are utilized after discarding
To obtain the final product.
The cement concrete test specimen that 350mm × 350mm × 50mm is prepared using cement and rubble carries out brushing construction experiment.
Test specimen is rinsed using preceding with clear-water high-pressure, and plurality of specifications hairbrush is used after natural drying by anti-freezing ice super hydrophobic coating brush obtained
Surface of test piece is coated in, is then sprayed using air pump airbrush, is sprayed again after naturally dry, is tried after 3 times dryings of constructing
Part surface coating thickness is 2~3mm.Brushing can make anti-freezing ice super hydrophobic coating penetrate into test specimen certain depth, and high pressure painting can
Ensure the nano particle hydrophobic layer in surface of test piece formation adequate thickness.
To be fully understood by the performance of road anti-freezing ice super hydrophobic coating obtained, not spray the test specimen of any coating work
Antiskid performance, hydrophobic performance have been carried out for control, has delayed freezing time, " cohesive force between ice-road " test, and specific test process is such as
Under：
(1) antiskid performance test
Using III type pendulum friction coefficient determinators of BM-, it is averaged after being measured 5 times according to testing standard, scribbles anti-freezing
The test specimen coefficient of friction of ice super hydrophobic coating is 66BPN, and the coefficient of friction for compareing test specimen is 58BPN.
(2) hydrophobic performance is tested
The test specimen of anti-freezing ice super hydrophobic coating and control surface of test piece dropwise addition water droplet are being scribbled, observation is found：Drop is applying
The non-drawout of surface of test piece for having anti-freezing ice super hydrophobic coating is spherical, and slightly tilts test specimen, and drop can be from test specimen table
Face rolling is walked；Opposite, drop almost all covers and has wet control surface of test piece.
(3) freezing time is delayed to test
It is -20 DEG C by general refrigerator temperature setting, two kinds of test specimens is put into refrigerator, are spread to try by the water of same amount respectively
Part surface, the icing behavior that comparative observation water droplet occurs.After tested, the surface of test piece coated with anti-freezing ice super hydrophobic coating
Occur icing conditions after 780s, icing behavior is occurred as soon as after control surface of test piece 300s.
(4) cohesive force is tested between " ice-road "
It is tested using diametral compression test instrument, anti-freezing ice super hydrophobic coating test specimen test value is 0.92KN.
Actual road surface test result also indicates that the coefficient of friction on the super-hydrophobic road surface formed by above-mentioned steps improves 10%
~17%, and with good hydrophobic performance, delay freezing time 300s~500s, the cohesive force between ice and road surface reduces
1.2~3.5 times, de-icing time is shorter and deicing after road surface it is relatively dry.
Embodiment 2
Other step parameters of the present embodiment are same as Example 1, the difference is that：Anti-freezing ice super hydrophobic coating is by hydrophobic
Zinc oxide nanoparticle presses 1 with ethanol solution:Magnetic agitation (30min) forms after 70 weight ratio mixing.It is similary to prepare
Two groups of samples are tested for above-mentioned performance evaluation.The result shows that scribble the surface of test piece friction system of anti-freezing ice super hydrophobic coating
Number is 66BPN, and the coefficient of friction for compareing surface of test piece is 60BPN；Drop is coated with anti-freezing ice super hydrophobic coating test specimen table
The incomplete drawout in face is spherical in ellipse, and almost all covers and wet control surface of test piece；It is super thin coated with anti-freezing ice
Just there are icing conditions after the surface of test piece 780s of water paint, and icing behavior occur after compareing surface of test piece 280s；In addition
Cohesive force test value is 0.96KN between test specimen " ice-road " coated with anti-freezing ice super hydrophobic coating.
Claims (7)
1. a kind of super hydrophobic coating for road anti-freezing ice, which is characterized in that the coating is by the zinc oxide by hydrophobically modified
Nano particle is dispersed in absolute ethyl alcohol and is formed, and the mass fraction of zinc oxide is 1.2%-2.0% in dispersion liquid.
2. the preparation method of a kind of super hydrophobic coating for road anti-freezing ice, which is characterized in that comprise the following steps：(a) according to
It is secondary that stearic acid and Zinc oxide nanoparticle are added in ethanol solution, it filters, dry after being uniformly mixed, grinding,
Obtain hydrophobic Zinc oxide nanoparticle；(b) hydrophobic Zinc oxide nanoparticle is dispersed in ethanol solution, obtains road use
Anti-freezing ice super hydrophobic coating.
3. a kind of preparation method of super hydrophobic coating for road anti-freezing ice according to claim 2, it is characterised in that：
Stearic addition is equivalent to the 0.5%-2.0% of ethanol solution quality in step (a).
4. a kind of preparation method of super hydrophobic coating for road anti-freezing ice according to claim 2, it is characterised in that：
The addition of Zinc oxide nanoparticle is equivalent to the 0.9%-1.2% of ethanol solution quality in step (a).
5. a kind of preparation method of super hydrophobic coating for road anti-freezing ice according to claim 2, it is characterised in that：
The mass fraction of hydrophobic Zinc oxide nanoparticle is 1.2%-2.0% in step (b).
6. the construction method of the super hydrophobic coating for road anti-freezing ice, which is characterized in that comprise the following steps：(1) will wait to apply
It is dry after work Street surface cleaning dedusting oil removing；(2) by road of the road with the repeated multiple times coating of anti-freezing ice super hydrophobic coating after the cleaning
Road surfaces, after dry.
7. the construction method of the super hydrophobic coating according to claim 6 for road anti-freezing ice, it is characterised in that：Road surface
It first brushes when coating operation and once and then sprays once, sprayed again once after naturally dry.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711361590.0A CN108047776A (en) | 2017-12-18 | 2017-12-18 | It is a kind of to be used for the super hydrophobic coating of road surface anti-freezing ice and its preparation, construction method |
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| CN201711361590.0A CN108047776A (en) | 2017-12-18 | 2017-12-18 | It is a kind of to be used for the super hydrophobic coating of road surface anti-freezing ice and its preparation, construction method |
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Cited By (7)
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| CN110283482A (en) * | 2019-07-27 | 2019-09-27 | 西北师范大学 | One kind can repair super-hydrophobic Zn (OH)2/ stearic acid coating and its preparation method and application |
| CN112012073A (en) * | 2020-08-25 | 2020-12-01 | 南京林业大学 | Method for improving drainage performance of double-layer drainage asphalt pavement |
| CN113152154A (en) * | 2021-04-26 | 2021-07-23 | 杭州西红柿环保科技有限公司 | Fully-degradable dry-pressed pulp molding product and preparation method thereof |
| CN113215862A (en) * | 2021-04-26 | 2021-08-06 | 杭州西红柿环保科技有限公司 | Fully-degradable fluorine-free paper pulp molded dinner plate and preparation method thereof |
| CN115058193A (en) * | 2022-07-29 | 2022-09-16 | 南京林业大学 | Hydrophobic ice-suppressing coating for asphalt pavement and preparation method thereof |
| CN115075877A (en) * | 2022-06-30 | 2022-09-20 | 招金矿业股份有限公司 | Method for preventing large block ice from forming on mine shaft wall |
| CN115948116A (en) * | 2023-02-13 | 2023-04-11 | 西南交通大学 | Asphalt pavement graded super-hydrophobic ice-suppressing coating and preparation method thereof |
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Cited By (9)
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|---|---|---|---|---|
| CN110283482A (en) * | 2019-07-27 | 2019-09-27 | 西北师范大学 | One kind can repair super-hydrophobic Zn (OH)2/ stearic acid coating and its preparation method and application |
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| CN112012073A (en) * | 2020-08-25 | 2020-12-01 | 南京林业大学 | Method for improving drainage performance of double-layer drainage asphalt pavement |
| CN113152154A (en) * | 2021-04-26 | 2021-07-23 | 杭州西红柿环保科技有限公司 | Fully-degradable dry-pressed pulp molding product and preparation method thereof |
| CN113215862A (en) * | 2021-04-26 | 2021-08-06 | 杭州西红柿环保科技有限公司 | Fully-degradable fluorine-free paper pulp molded dinner plate and preparation method thereof |
| CN115075877A (en) * | 2022-06-30 | 2022-09-20 | 招金矿业股份有限公司 | Method for preventing large block ice from forming on mine shaft wall |
| CN115058193A (en) * | 2022-07-29 | 2022-09-16 | 南京林业大学 | Hydrophobic ice-suppressing coating for asphalt pavement and preparation method thereof |
| CN115948116A (en) * | 2023-02-13 | 2023-04-11 | 西南交通大学 | Asphalt pavement graded super-hydrophobic ice-suppressing coating and preparation method thereof |
| CN115948116B (en) * | 2023-02-13 | 2023-11-21 | 西南交通大学 | Graded super-hydrophobic ice-inhibiting coating for asphalt pavement and preparation method thereof |
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