CN104609739A - Nano hydrophobic and oleophobic coating and preparation method of coating - Google Patents
Nano hydrophobic and oleophobic coating and preparation method of coating Download PDFInfo
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- CN104609739A CN104609739A CN201410854904.0A CN201410854904A CN104609739A CN 104609739 A CN104609739 A CN 104609739A CN 201410854904 A CN201410854904 A CN 201410854904A CN 104609739 A CN104609739 A CN 104609739A
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- coating
- glass
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- hydrophobic oleophobic
- oleophobic coating
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
- C03C17/008—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character comprising a mixture of materials covered by two or more of the groups C03C17/02, C03C17/06, C03C17/22 and C03C17/28
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/76—Hydrophobic and oleophobic coatings
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- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention relates to a nano hydrophobic and oleophobic coating and a preparation method of the coating. The coating comprises the following components in percentage by weight: 70-75% of ethyl alcohol, 5-10% of isopropanol, 10-25% of a siloxane oligomer and the balance of ethereal sulfate. The preparation method of the coating comprises the following steps: fully mixing the components to obtain a solution and wiping the surface of the glass by using a solution-containing non-woven fabric; placing the glass, and repeatedly wiping the surface by using the same non-woven fabric in a ring manner; then removing the residual solution on the surface of the glass by using a clean non-woven fabric, subsequently polishing the surface of the material, leaving the polished surface to stand, and then obtaining the coating on the surface of the glass. According to the invention, the contact angle between the coating and water is increased, so that the drainage effect is remarkably improved; only little water is needed for washing the coating; besides, the sliding angle of the water is reduced, so that the surface of the glass is more easy to wipe; the use of harmful cleaning agents is eliminated; the nano hydrophobic and oleophobic coating has a good application prospect.
Description
Technical field
The invention belongs to self-cleaning glass film field, particularly a kind of nano-sized hydrophobic oleophobic coating and preparation method thereof.
Background technology
Glass is from that time of manufacturing, and just expose in atmosphere, the dust in air, moisture, soda acid and physical attacks all can work the mischief to glass substantially always.In building industry, automotive industry and daily life, the spot problem in glass harm more and more becomes the focus that people pay close attention to, and under this trend, self-cleaning glass arises at the historic moment.Self-cleaning glass refers to that simple glass is by after special physics or chemical process process, makes its surface produce unique physical property, thus makes glass no longer be reached the permanent glass keeping cleaning effect by traditional artificial scrubbing method.Self-cleaning glass can be divided into wetting ability self-cleaning glass and hydrophobicity self-cleaning glass by wetting ability classification.
There is hydrophilic self-cleaning glass be generally all made up of inorganic materials viewed from rete material aspect, as: TiO
2, SnO
2deng.The function of surface mould material mainly TiO of the self-cleaning glass come into operation at present and research and develop
2and TiO
2with the mixture of other metals, metal oxide or other element dopings.The self-cleaning function of wetting ability self-cleaning glass shows as two aspects: one is lean on its surface to the affinity of water, and the contact angle of the drop of water on glass material surface is gone to zero.When water touches glass material, rapidly at its surface spreading, form uniform moisture film, the character that performance excess of export is hydrophilic, take away spot by the action of gravity of uniform water film, most of organic or inorganic spot can be dispelled by which.Two is the organic abilities of photocatalysis Decomposition, TiO
2under UV-light or radiation of visible light, when the energy of illumination photons is greater than or equal to its bandwidth time, the electronics be situated between in band is excited, cross valence band and enter conduction band, conduction band and valence band form electron-hole pair, and electronics, hole have different activity, respectively be adsorbed on TiO
2the organic substance generation redox reaction on surface, generates water and CO
2, thus reach the object of degradation of organic substances.
The another kind of product of self-cleaning glass is hydrophobic film distinct with above-mentioned character.Usually, organic self-cleaning glass is all super-hydrophobic, utilize super-hydrophobic technology to make glass surface produce special surface character that is hydrophobic and oleophobic, make the water, spot, mineral substance etc. being in glass surface reach the permanent object keeping glass surface clean because cannot glass surface be sticked to.Hydrophobic self-cleaning glass is the automatically cleaning effect based on lotus leaf mostly, plates that one deck hydrophobic film is prepared from glass surface.This hydrophobic membrane can be super-hydrophobic organic polymer fluorochemical, silicide and other polymeric membrane, also can be the inorganic, metal oxide film with certain roughness.
The method that current suitability for industrialized production prepares wetting ability self-cleaning glass mainly includes chemical Vapor deposition process (CVD), sol-gel high-temperature sintering process (Sol-Gel) and magnetron sputtering method (PVD).Wherein chemical Vapor deposition process is high to equipment requirements, and cost of investment is large, causes production cost to remain high always; Sol-gel high-temperature sintering process may occur that in large-scale production gel coating is uneven, and in the heat treatment process prepared of gel, state modulator is too large to the characteristics influence of gel; Magnetron sputtering method is also not suitable for a large amount of production at present, and plated film efficiency is low, and thicknesses of layers is smaller, does not reach the thickness required for photochemical catalysis.And the rete of hydrophobic glass As time goes on hydrophobic angle reduce gradually, yield poor results, the automatically cleaning effect of glassy product in work-ing life process cannot be ensured, thus self-cleaning truly cannot be ensured.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of nano-sized hydrophobic oleophobic coating and preparation method thereof, this coating increases the contact angle with water, thus significantly improve drainage effect, a small amount of water is only needed to clean, reduce the slide angle of water simultaneously, glass surface is more easily cleaned, has dispelled the use of harmful sanitising agent.
The present invention proposes a kind of nano-sized hydrophobic oleophobic coating, and the component of described coating is: by weight percentage, ethanol 70 ~ 75%, Virahol 5 ~ 10%, siloxane oligomer 10 ~ 25%, and all the other are sulfovinic acid.
The component of described coating is: by weight percentage, ethanol 72%, Virahol 6.9%, siloxane oligomer 20.1%, and all the other are sulfovinic acid.
The component of described coating is: by weight percentage, ethanol 73%, Virahol 5.8%, siloxane oligomer 18.4%, and all the other are sulfovinic acid.
The particle diameter of described coating is 1 ~ 100nm, and contact angle is greater than 100 °, and slide angle is less than 20 °.
The preparation method of a kind of nano-sized hydrophobic oleophobic coating of the present invention, comprising:
Obtain solution after each component fully being mixed in proportion, need glass surface to be processed with the non-woven fabrics wiping containing obtain solution to some extent; After placement, with identical non-woven fabrics with the overlapping wipe surfaces of the form of circle; Then wipe the residual liquid of glass surface away with clean non-woven fabrics, then come the surface of polishing material with ultra-fine fibre cloth, cotton or paper handkerchief, after leaving standstill, namely obtain nano-sized hydrophobic oleophobic coating at glass surface.
Principle of the present invention is as follows:
1, by with glass surface generation chemical reaction, form the thin net of cross-coupled silicon of one deck densification on surface.
2, after the chlorine atom the first step being left on atomic bond least significant end uses extra water molecules itself and hydroxyl to be replaced, special coated material is by directed covering material surface, this second step covers whole atomic bond, the tectum of this uniqueness adds hydrophobicity and weather resistance fully, when surface-coated cap rock and air insulated, the character of glass surface depends on tectum completely, due to tectal hydrophobic oleophobic character, pollutent in sky G&W will be made, mineral substance is difficult to stick to its surface, just form the glass surface that really has self-cleaning function.
beneficial effect
The present invention utilizes and common are machine material, prepare according to a certain percentage, by simply smearing or being sprayed at glass surface, thus form the nano surface structure of hydrophobic oleophobic, glass surface is made to have the function easy to clean of keeping a public place clean of (at least 15 years) for a long time, thus there is environmental protection effect, this coating increases the contact angle with water, thus significantly improve drainage effect, a small amount of water is only needed to clean, reduce the slide angle of water simultaneously, glass surface is more easily cleaned, dispel the use of harmful sanitising agent.
Accompanying drawing explanation
Fig. 1 is the glass photo before (A) film and after (B) film;
Fig. 2 is the globule picture before (A) film and after (B) film.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values are equally in the application's appended claims limited range after the content of having read the present invention's instruction.
Embodiment 1
By weight percentage, ethanol 72%, Virahol 6.9%, siloxane oligomer 20.1%, solution is obtained after all the other proportionings being sulfovinic acid fully mix, in draughty place, need glass surface to be processed, until whole surface is all by complete wiping with the non-woven fabrics wiping of having dipped in institute's obtain solution.Place after one minute, use identical non-woven fabrics with the overlapping wipe surfaces of the form of circle one minute.Then the residual liquid of glass surface is wiped away with clean non-woven fabrics, then ultra-fine fibre cloth, cotton or paper handkerchief is used to come the surface of polishing material, thus complete the coating of material surface rete, the nano-sized hydrophobic oleophobic coating of particle diameter 30-50nm will be formed at glass surface after leaving standstill several minutes.Carry out performance test, result is as follows:
| Performance | Before film | After film |
| Contact angle | 11° | 106° |
| Frictional coefficient | 0.82 | 0.13 |
| Surface strength (rupture stress) | 1.65N | 17.78N |
Wear testing: with stress wearing and tearing head circulation wearing treatment glass surface 1600 circulation back and forth of a pound, the front contact angle of test is 106 °, slide angle is 15.6 °, and the rear contact angle of wearing and tearing is 66.7 °, slide angle is 28.5 °.
Embodiment 2
By weight percentage, ethanol 73%, Virahol 5.8%, siloxane oligomer 18.4%, solution is obtained after all the other proportionings being sulfovinic acid fully mix, in draughty place, need glass surface to be processed, until whole surface is all by complete wiping with the non-woven fabrics wiping of having dipped in institute's obtain solution.Place after one minute, use identical non-woven fabrics with the overlapping wipe surfaces of the form of circle one minute.Then the residual liquid of glass surface is wiped away with clean non-woven fabrics, then ultra-fine fibre cloth, cotton or paper handkerchief is used to come the surface of polishing material, thus complete the coating of material surface rete, the nano-sized hydrophobic oleophobic coating of particle diameter 50-80nm will be formed at glass surface after leaving standstill several minutes.Carry out performance test, result is as follows:
| Performance | Before film | After film |
| Contact angle | 11° | 104° |
| Frictional coefficient | 0.82 | 0.19 |
| Surface strength (rupture stress) | 1.65N | 16.48N |
Wear testing: with stress wearing and tearing head circulation wearing treatment glass surface 1600 circulation back and forth of a pound, the front contact angle of test is 104 °, slide angle is 16.8 °, and the rear contact angle of wearing and tearing is 65.4 °, slide angle is 29.6 °.
Claims (5)
1. a nano-sized hydrophobic oleophobic coating, is characterized in that: the component of described coating is: by weight percentage, ethanol 70 ~ 75%, Virahol 5 ~ 10%, siloxane oligomer 10 ~ 25%, and all the other are sulfovinic acid.
2. a kind of nano-sized hydrophobic oleophobic coating according to claim 1, it is characterized in that: the component of described coating is: by weight percentage, ethanol 72%, Virahol 6.9%, siloxane oligomer 20.1%, all the other are sulfovinic acid.
3. a kind of nano-sized hydrophobic oleophobic coating according to claim 1, it is characterized in that: the component of described coating is: by weight percentage, ethanol 73%, Virahol 5.8%, siloxane oligomer 18.4%, all the other are sulfovinic acid.
4. a kind of nano-sized hydrophobic oleophobic coating according to claim 1, is characterized in that: the particle diameter of described coating is 1 ~ 100nm, and contact angle is greater than 100 °, and slide angle is less than 20 °.
5. a preparation method for nano-sized hydrophobic oleophobic coating as claimed in claim 1, comprising:
Obtain solution after component fully being mixed, need glass surface to be processed with the non-woven fabrics wiping containing solution; After placement, with identical non-woven fabrics with the overlapping wipe surfaces of the form of circle; Then wipe the residual liquid of glass surface away with clean non-woven fabrics, then come the surface of polishing material with ultra-fine fibre cloth, cotton or paper handkerchief, after leaving standstill, namely obtain nano-sized hydrophobic oleophobic coating at glass surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854904.0A CN104609739A (en) | 2014-12-31 | 2014-12-31 | Nano hydrophobic and oleophobic coating and preparation method of coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854904.0A CN104609739A (en) | 2014-12-31 | 2014-12-31 | Nano hydrophobic and oleophobic coating and preparation method of coating |
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| Publication Number | Publication Date |
|---|---|
| CN104609739A true CN104609739A (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410854904.0A Withdrawn CN104609739A (en) | 2014-12-31 | 2014-12-31 | Nano hydrophobic and oleophobic coating and preparation method of coating |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159538A (en) * | 2017-05-19 | 2017-09-15 | 重庆大学 | A kind of method for forming fixed contact angle evaporation profiles |
| CN109836172A (en) * | 2019-01-17 | 2019-06-04 | 宁波欧琳厨具有限公司 | Coated product |
| CN111041838A (en) * | 2019-12-27 | 2020-04-21 | 苏州东杏表面技术有限公司 | Wet tissue and preparation method and application thereof |
-
2014
- 2014-12-31 CN CN201410854904.0A patent/CN104609739A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159538A (en) * | 2017-05-19 | 2017-09-15 | 重庆大学 | A kind of method for forming fixed contact angle evaporation profiles |
| CN109836172A (en) * | 2019-01-17 | 2019-06-04 | 宁波欧琳厨具有限公司 | Coated product |
| CN111041838A (en) * | 2019-12-27 | 2020-04-21 | 苏州东杏表面技术有限公司 | Wet tissue and preparation method and application thereof |
| CN111041838B (en) * | 2019-12-27 | 2022-06-28 | 苏州东杏表面技术有限公司 | Wet tissue and preparation method and application thereof |
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Application publication date: 20150513 |