CN105419412A - High-adhesion super-hydrophobic finish-coat paint and preparation method thereof - Google Patents
High-adhesion super-hydrophobic finish-coat paint and preparation method thereof Download PDFInfo
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- CN105419412A CN105419412A CN201510953786.3A CN201510953786A CN105419412A CN 105419412 A CN105419412 A CN 105419412A CN 201510953786 A CN201510953786 A CN 201510953786A CN 105419412 A CN105419412 A CN 105419412A
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- adhesive force
- high adhesive
- hydrophobic
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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
Abstract
The invention relates to high-adhesion super-hydrophobic finish-coat paint which is prepared from the following components: tetraethoxysilane, ethanol, ammonia water, monoamino methoxylsilane or monoamino triethoxy methylsilane, polyamino methoxylsilane or polyamino triethoxy methylsilane, 0.0005 to 0.0015mol/L oxalic acid solution, a hydrophobic modifying agent and water. According to the paint provided by the invention, the problems that an existing preparation method is complex in process, expensive in cost, long in time consumption and the like are overcome, the paint has the advantages of simple process and low cost, has the characteristic of super high adhesion, is beneficial for maintaining the super-hydrophobicity of a paint film, the paint film contact angle is between 150 to 160 degrees, and the adhesion is 90 to 100 percent.
Description
Technical field
The present invention relates to the preparation method of the super-hydrophobic finishing paint of a kind of high adhesive force and preparation method thereof, be applied in functional paint cover field.
Background technology
Material is after its film forming, and contact angle is greater than 150 ° and slide angle is less than 10 ° is referred to as super-hydrophobic phenomenon.Occurring in nature, the water droplet of lotus leaf surface can freely tumble, and water skipper freely can walk at the water surface, cicada's wings surface, and it is all natural super-hydrophobic phenomenon that Rice Leaf surface is waited.Lotus leaf goes out mud and does not contaminate its special automatically cleaning effect to receive scientists and study interest greatly, has wide using value in life.Such as, Shen etc. have prepared super hydrophobic surface at stainless steel surface, can play rot-resistant effect.Ultraphobic surface is used on outdoor antenna, can accumulated snow be prevented, thus can ensure that communication signals is unimpeded; Be used on the inner-walls of duct of transfer oil or on textile clothes, waterproof, antifouling.If super hydrophobic material is used on common buildings exterior wall, permanent cleaning can be reached, avoid the effect of a few Nian Yixiu.
Super-hydrophobic application on coating at present has had very large progress, but also have many problems to need to go to solve, such as cost is higher, very high to equipment requirements, reaction is harsh and the time long industrialization that all have impact on super-hydrophobic coat, secondly, from practical application angle aspect, although now prepared super hydrophobic surface hydrophobic effect is good, but its sticking power is bad, persistence is poor, easily makes the fine structure of coating surface be damaged, and causes the super-hydrophobicity of paint film greatly to reduce and even loses.There is patent to ensure the high adhesive force 201010117828.7 of cover on stone material by Siliciumatom and siloxanes collocation effect though existing, compare on stone material and have similar siloxanes, easy bonding, common substrate (non-stone material) does not but have, and is difficult to the sticking power promoting paint film.
Therefore provide one be applicable to super-hydrophobic finishing paint of high adhesive force of common substrate (non-stone material) and preparation method thereof oneself become when business urgently.
Summary of the invention
The invention provides super-hydrophobic finishing paint of a kind of high adhesive force and preparation method thereof, which overcome the problems such as the complex process in existing preparation method, cost intensive and length consuming time, there is the advantage that technique is simple, cost is low, have more the feature of standby superelevation sticking power, be beneficial to the super-hydrophobicity keeping paint film, its paint film contact angle is between 150-160 °, and sticking power is at 90-100%.
Technical scheme of the present invention is as follows:
The super-hydrophobic finishing paint of a kind of high adhesive force, it comprises: it is formulated by the component of following weight part:
Wherein, hydrophobic modifier is many alkyl trimethoxysilanes or many alkyl triethoxysilane.
Existing super hydrophobic coating preparation has synthesis low surface energy fluoro containing polymers and adds low surface energy fluorine-containing first (second) TMOS etc.There is various problems in this kind of building-up process, as reaction atmosphere require strict, temperature of reaction more than 100 DEG C, the reaction times is more than 24h etc.Substantially industrialized super hydrophobic coating is not had at present, mainly because cost is high and preparation technology is loaded down with trivial details.The super-hydrophobic finishing paint of the application's high adhesive force by adding polyamino methoxy silane or polyamino Ethoxysilane in tetraethoxy, tetraethyl orthosilicate and polyamino methoxy silane or polyamino Ethoxysilane interact and form the particle of microscale/nanoscale, form multipolarity impetus, improve the sticking power of paint film and common substrate (non-stone material).Use the mono amino methoxy silane of low cost or mono amino Ethoxysilane and polyamino methoxy silane or polyamino Ethoxysilane with the use of, more interface bond co-bit can be provided, thus greatly improve paint film to the sticking power at interface, ensure that the persistence of cover uses; Both can ensure polarity, can reduce costs again, improve the cost performance of this paint.The super-hydrophobic finishing paint of this high adhesive force has superelevation sticking power, and the lifting of sticking power improves the weathering resistance of this paint film, weather resistance.
Described polyamino methoxy silane is γ-diethylenetriamine hydroxypropyl methyl dimethoxysilane, and mono amino Ethoxysilane is γ-aminopropyl triethoxysilane.
The part by weight of γ-aminopropyl triethoxysilane and γ-diethylenetriamine hydroxypropyl methyl dimethoxysilane is 3:7-7:3.
The part by weight of γ-aminopropyl triethoxysilane and γ-diethylenetriamine hydroxypropyl methyl dimethoxysilane is 3:7.
The volumetric molar concentration of oxalic acid solution is 0.001mol/L.
Many alkyl trimethoxysilanes are hexadecyl trimethoxy silane, the hexadecyl trimethoxy silane of lower cost is as hydrophobic modifier and other silane coupling agent synergetic hydrolysis, embed n-Hexadecane, reach low surface energy, reach good hydrophobic effect, ensure that the contact angle of paint film is at 150-160 °.
The preparation method of the super-hydrophobic finishing paint of this high adhesive force comprises the step that next coming in order carry out:
1. in tetraethoxy, add ethanol stir and dissolve, then add ammoniacal liquor, in 40-70 DEG C of water-bath and with the rotating speed of 400-500rpm stir 60-90min, then get rid of ammonia, until without ammonia taste;
2. in step 1. made mixture, add the oxalic acid solution of mono amino methoxy silane or mono amino Ethoxysilane, polyamino methoxy silane or polyamino Ethoxysilane, 0.0005-0.0015mol/L successively, be warming up to 80-100 DEG C, stir with the rotating speed of 400-500rpm and react 30-60min, add hydrophobic modifier and water more afterwards, stir with the rotating speed of 400-500rpm and react 3-6h, finally mixture is placed in frozen water, treat that it cools completely, obtain the super-hydrophobic finishing paint of high adhesive force.
Described step mixing speed 1. and is 2. 450rpm.
The super-hydrophobic finishing paint of this high adhesive force has the super-hydrophobic finishing paint of high adhesive force of micro nano structure by simple sol-gel method synthesis, be different from the reaction harshness of current technique, complex process, time tediously long, the finishing paint not only prepared has ultra-hydrophobicity, preparation technology is simple simultaneously, consuming time short, cost is low, and its reaction times shorter, temperature of reaction is applicable to industrialization.
Compared with prior art, the present patent application has the following advantages:
1) superelevation sticking power and super-hydrophobicity, paint film contact angle is between 150-160 °, and sticking power is at 90-100%;
2) technique is simple, cost is low, is different from the multi-step of other patents, many condition synthesis method, can industrialization.
Embodiment
Below in conjunction with each embodiment, technical scheme of the present invention is described in detail.
Raw material sources:
Water: ordinary tap water;
Tetraethyl orthosilicate: Aladdin is produced, analytical pure;
Ethanol: Aladdin is produced, analytical pure;
Ammoniacal liquor: Xilong Chemical Co., Ltd produces, analytical pure;
γ-aminopropyl triethoxysilane: Guangzhou Long Kai Chemical Co., Ltd. produces, technical grade;
γ-diethylenetriamine hydroxypropyl methyl dimethoxysilane: Guangzhou Long Kai Chemical Co., Ltd. produces, technical grade;
Hexadecyl trimethoxy silane: Guangzhou Long Kai Chemical Co., Ltd. produces, technical grade;
Oxalic acid: Aladdin is produced, analytical pure.
Embodiment 1
The super-hydrophobic finishing paint of a kind of high adhesive force, it is formulated by the component of following weight part:
The preparation method of the super-hydrophobic finishing paint of this high adhesive force, it comprises the step that next coming in order carry out:
1. in tetraethoxy, add ethanol stir and dissolve, then add ammoniacal liquor, in 60 DEG C of water-baths and with the rotating speed of 450rpm stir 80min, then get rid of ammonia, until without ammonia taste;
2. in step 1. made mixture, add the oxalic acid solution of γ-aminopropyl triethoxysilane, γ-diethylenetriamine hydroxypropyl methyl dimethoxysilane, 0.001mol/L successively, be warming up to 80 DEG C, stir with the rotating speed of 450rpm and react 45min, add hexadecyl trimethoxy silane and water more afterwards, stir with the rotating speed of 450rpm and react 4.5h, finally mixture is placed in frozen water, treats that it cools completely, obtain the super-hydrophobic finishing paint of high adhesive force.
Embodiment 2
The super-hydrophobic finishing paint of a kind of high adhesive force, it is formulated by the component of following weight part:
The preparation method of the super-hydrophobic finishing paint of this high adhesive force, it comprises the step that next coming in order carry out:
1. in tetraethoxy, add ethanol stir and dissolve, then add ammoniacal liquor, in 60 DEG C of water-baths and with the rotating speed of 400rpm stir 80min, then get rid of ammonia, until without ammonia taste;
2. in step 1. made mixture, add the oxalic acid solution of γ-aminopropyl triethoxysilane, γ-diethylenetriamine hydroxypropyl methyl dimethoxysilane, 0.001mol/L successively, be warming up to 80 DEG C, stir with the rotating speed of 500rpm and react 45min, add many alkyl trimethoxysilanes and water more afterwards, stir with the rotating speed of 400rpm and react 4.5h, finally mixture is placed in frozen water, treats that it cools completely, obtain the super-hydrophobic finishing paint of high adhesive force.
Embodiment 3
The super-hydrophobic finishing paint of a kind of high adhesive force, it is formulated by the component of following weight part:
The preparation method of the super-hydrophobic finishing paint of this high adhesive force, it comprises the step that next coming in order carry out:
1. in tetraethoxy, add ethanol stir and dissolve, then add ammoniacal liquor, in 60 DEG C of water-baths and with the rotating speed of 500rpm stir 80min, then get rid of ammonia, until without ammonia taste;
2. in step 1. made mixture, add the oxalic acid solution of mono amino methoxy silane or mono amino Ethoxysilane, polyamino methoxy silane or polyamino Ethoxysilane, 0.001mol/L successively, be warming up to 80 DEG C, stir with the rotating speed of 400rpm and react 45min, add many alkyl triethoxysilane and water more afterwards, stir with the rotating speed of 500rpm and react 4.5h, finally mixture is placed in frozen water, treats that it cools completely, obtain the super-hydrophobic finishing paint of high adhesive force.
Embodiment 4
The difference of itself and embodiment 1 is: it is formulated by the component of following weight part:
Embodiment 5
The difference of itself and embodiment 2 is: it is formulated by the component of following weight part:
Embodiment 6
The difference of itself and embodiment 3 is:
It is formulated by the component of following weight part:
Experimental data
| Contact angle | Sticking power | |
| Embodiment 1 | 152° | 96％ |
| Embodiment 2 | 155° | 93％ |
| Embodiment 3 | 159° | 90％ |
| Embodiment 4 | 153° | 91％ |
| Embodiment 5 | 152° | 92％ 7 --> |
| Embodiment 6 | 153° | 92％ |
In sum, the super-hydrophobic finishing paint of the high adhesive force prepared by the present invention can not only keep high hydrophobic performance, and contact angle is at 150-160 °, and this coating has high sticking power, departs from area and is less than 10%.Certain theoretical basis is provided to construction application.
Super-hydrophobic finishing paint of high adhesive force described in invention and preparation method thereof has more than and is only confined to above-described embodiment, and every any improvement according to the principle of the invention or replacement, all should within protection scope of the present invention.
Claims (8)
1. the super-hydrophobic finishing paint of high adhesive force, is characterized in that: it is formulated by the component of following weight part,
Wherein, hydrophobic modifier is many alkyl trimethoxysilanes or many alkyl triethoxysilane.
2. the super-hydrophobic finishing paint of high adhesive force according to claim 2, is characterized in that: described polyamino methoxy silane is γ-diethylenetriamine hydroxypropyl methyl dimethoxysilane, and mono amino Ethoxysilane is γ-aminopropyl triethoxysilane.
3. the super-hydrophobic finishing paint of high adhesive force according to claim 3, is characterized in that: the part by weight of γ-aminopropyl triethoxysilane and γ-diethylenetriamine hydroxypropyl methyl dimethoxysilane is 3:7-7:3.
4. the super-hydrophobic finishing paint of high adhesive force according to claim 3, is characterized in that: the part by weight of γ-aminopropyl triethoxysilane and γ-diethylenetriamine hydroxypropyl methyl dimethoxysilane is 3:7.
5. the super-hydrophobic finishing paint of high adhesive force according to claim 1, is characterized in that: the volumetric molar concentration of oxalic acid solution is 0.001mol/L.
6. the super-hydrophobic finishing paint of high adhesive force according to claim 1, is characterized in that: many alkyl trimethoxysilanes are hexadecyl trimethoxy silane.
7. the preparation method of the super-hydrophobic finishing paint of the high adhesive force according to any one of claim 1-6, is characterized in that: it comprises the step that next coming in order carry out,
1. in tetraethoxy, add ethanol stir and dissolve, then add ammoniacal liquor, in 40-70 DEG C of water-bath and with the rotating speed of 400-500rpm stir 60-90min, then get rid of ammonia, until without ammonia taste;
2. in step 1. made mixture, add the oxalic acid solution of mono amino methoxy silane or mono amino Ethoxysilane, polyamino methoxy silane or polyamino Ethoxysilane, 0.0005-0.0015mol/L successively, be warming up to 80-100 DEG C, stir with the rotating speed of 400-500rpm and react 30-60min, add hydrophobic modifier and water more afterwards, stir with the rotating speed of 400-500rpm and react 3-6h, finally mixture is placed in frozen water, treat that it cools completely, obtain the super-hydrophobic finishing paint of high adhesive force.
8. the preparation method of the super-hydrophobic finishing paint of high adhesive force according to claim 7, is characterized in that: described step mixing speed 1. and is 2. 450rpm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510953786.3A CN105419412B (en) | 2015-12-17 | 2015-12-17 | A kind of super-hydrophobic finish of high adhesion force and preparation method thereof |
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| CN201510953786.3A CN105419412B (en) | 2015-12-17 | 2015-12-17 | A kind of super-hydrophobic finish of high adhesion force and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221311A (en) * | 2016-07-19 | 2016-12-14 | 杨得全 | A kind of super-hydrophobic high transparent nano inorganic agent of automobile rearview mirror and preparation technology thereof and coating processes |
| CN106752125A (en) * | 2016-11-22 | 2017-05-31 | 赖禄波 | Antisticking coating and preparation method |
| CN107474591A (en) * | 2017-06-26 | 2017-12-15 | 江阴市天邦涂料股份有限公司 | Super-hydrophobic nano coating and preparation method thereof |
| CN110540763A (en) * | 2019-07-23 | 2019-12-06 | 北京易净星科技有限公司 | Method for producing hydrophobic coating and hydrophobic coating |
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| CN1536032A (en) * | 2003-04-07 | 2004-10-13 | 章浩龙 | Nano silicon dioxide emulsion, its preparation method and application |
| CN101987941A (en) * | 2009-08-03 | 2011-03-23 | 深圳大学 | Method for preparing nanometer hardened organic silicon coating |
| CN103288364A (en) * | 2012-12-18 | 2013-09-11 | 杭州师范大学 | Preparation method of super-hydrophobic surface of glass |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106221311A (en) * | 2016-07-19 | 2016-12-14 | 杨得全 | A kind of super-hydrophobic high transparent nano inorganic agent of automobile rearview mirror and preparation technology thereof and coating processes |
| CN106752125A (en) * | 2016-11-22 | 2017-05-31 | 赖禄波 | Antisticking coating and preparation method |
| CN107474591A (en) * | 2017-06-26 | 2017-12-15 | 江阴市天邦涂料股份有限公司 | Super-hydrophobic nano coating and preparation method thereof |
| CN110540763A (en) * | 2019-07-23 | 2019-12-06 | 北京易净星科技有限公司 | Method for producing hydrophobic coating and hydrophobic coating |
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| CN105419412B (en) | 2017-12-26 |
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