CN105271811A - Super-hydrophilic self-cleaning glass preparation method - Google Patents
Super-hydrophilic self-cleaning glass preparation method Download PDFInfo
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- CN105271811A CN105271811A CN201510716001.0A CN201510716001A CN105271811A CN 105271811 A CN105271811 A CN 105271811A CN 201510716001 A CN201510716001 A CN 201510716001A CN 105271811 A CN105271811 A CN 105271811A
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Abstract
The invention discloses a super-hydrophilic self-cleaning glass preparation method, which comprises the following steps that 1, liquid A of SiO2 collosol is prepared; 2, liquid B of TiO2 collosol is prepared; 3, the liquid A and the liquid B are subjected to mixed ultrasound treatment according to a mole ratio being 1:1.2 to 1:3.5 to obtain liquid C; 4, glass to be subjected to membrane coating is sequentially subjected to distilled water cleaning, ethanol washing and drying, and then heat treatment is performed so that the glass temperature is maintained to be 380 to 550 DEG C; 5, the liquid C is sprayed and coated on the surface of the glass treated in the fourth step, and drying is performed; 6, the glass treated in the fifth step is tempered in a tempering furnace. A super-hydrophilic membrane on the surface of self-cleaning glass manufactured by the method has low dependency on ultraviolet light; organic pollutants can be effectively cleared away in visible light; the antifogging effect is good; a very good self-cleaning effect can be maintained; even when being placed in a dark place for a period of time, the glass still has a super-hydrophilic property; a super-hydrophilic membrane layer can be firmly combined with a glass substrate.
Description
Technical field
The present invention relates to a kind of ultra-hydrophilic type self-cleaning glass preparation method.
Background technology
Along with the raising that people require aesthetic and quality of the life, glass is subject to increasing welcome in the field such as buildings, automobile, but glass also brings many difficult problems while bringing people's light and beauty, and the cleaning problem as building glass curtain wall annoyings people always.
At present, be mainly divided into two kinds: one to be form hydrophobic membrane at glass surface about self-cleaning glass, make surface dust and microbial spore firmly can not stick to coatingsurface, be easy to be taken away by rainwater, thus realize automatically cleaning; Another kind forms super hydrophilic film at glass surface, because super hydrophilic film can produce electronics and hole under the irradiation of normal pressure and sunlight, and electronics and hole finally can produce superoxide radical and hydroxyl radical free radical with external environment, these free radicals can, without the organism being selectively oxidized glass surface, finally allow them allow rainwater wash away with dust etc.Be only the adhesion of decreasing pollution thing due to hydrophobic type instead of carry out oxidation explanation to pollutent, time therefore in the face of being difficult to the greasy dirt of removing, it will be felt simply helpless, so the research of the current overwhelming majority launches around wetting ability.Hydrophilic self-cleaning glass preparation method of the prior art has rete strongly to rely on illumination, rete cohesive force not strong, the shortcomings such as cleaning effect is bad.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of ultra-hydrophilic type self-cleaning glass preparation method.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of ultra-hydrophilic type self-cleaning glass preparation method, comprises the following steps:
(1) A liquid SiO is prepared
2colloidal sol, by tetraethoxy, distilled water, ammoniacal liquor and dehydrated alcohol mixing ultrasonic after, ageing at least 12 hours; Preferably, tetraethoxy, distilled water, ammoniacal liquor and dehydrated alcohol mixing mol ratio are 1:4:0.5:40.
(2) B liquid TiO is prepared
2colloidal sol, by butyl (tetra) titanate, distilled water, ammoniacal liquor and dehydrated alcohol mixing ultrasonic after, ageing at least 12 hours; Preferably, butyl (tetra) titanate, distilled water, ammoniacal liquor and dehydrated alcohol mixing mol ratio are 1:4:0.8:50.
(3) be that the ratio of 1:1.2-1:3.5 mixes ultrasonic with mol ratio by A liquid and B liquid, obtain C liquid;
(4) by glass to be coated successively through distilled water cleaning, alcohol wash, oven dry, then thermal treatment makes glass temperature remain on 380-550 DEG C;
(5) C liquid is sprayed at the glass surface after step (4) process, dries;
(6) glass after processing through step 6 is placed in annealing furnace tempering.
Preferably, in step (6), the coating film thickness of glass surface is 100-180nm.
Preferably, the PEG600 that mass percent is 0.8-1.0% is also added with in C liquid.
Preferably, in step (3), the mol ratio of A liquid and B liquid is 1:1.8.
Preferably, the nano-tube/CdS or nanometer Bi that mass percent is 0.5-0.8% is also added with in described C liquid
2s
3.
Preferably, the spraying number of times of step (5) is 1-3 time.
The beneficial effect that the present invention reaches:
1) the super hydrophilic film on the self-cleaning glass surface of the present invention's manufacture reduces the dependency of UV-light, effectively can remove organic pollutant under visible light, good antifogging effect, extraordinary automatically cleaning effect can be maintained, even be placed in dark place for some time, glass still has Superhydrophilic;
(2) super hydrophilic membrane is combined firmly with substrate of glass, and weather resistance is superior.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Embodiment 1:
A kind of ultra-hydrophilic type self-cleaning glass preparation method, comprises the following steps:
(1) A liquid SiO is prepared
2colloidal sol, by tetraethoxy, distilled water, after ammoniacal liquor and dehydrated alcohol mix ultrasonic 15min with mol ratio 1:4:0.5:40, ageing 12 hours;
(2) B liquid TiO is prepared
2colloidal sol, by butyl (tetra) titanate, distilled water, after ammoniacal liquor and dehydrated alcohol mix ultrasonic 15min with mol ratio 1:4:0.8:50, ageing 12 hours;
(3) be after the ratio of 1:1.2 mixes ultrasonic 15min with mol ratio by A liquid and B liquid, add mass percent be 0.8% PEG600 and massfraction be the nano-tube/CdS of 0.5%, ultrasonic 15min again, obtains C liquid;
(4) by glass to be coated successively through distilled water cleaning, alcohol wash, oven dry, then thermal treatment makes glass temperature remain on 380 DEG C;
(5) C liquid is sprayed at the glass surface after step (4) process, spraying number of times is 2 times, dries;
(6) glass after processing through step 6 is placed in annealing furnace tempering.
Embodiment 2
A kind of ultra-hydrophilic type self-cleaning glass preparation method, comprises the following steps:
(1) A liquid SiO is prepared
2colloidal sol, by tetraethoxy, distilled water, after ammoniacal liquor and dehydrated alcohol mix ultrasonic 15min with mol ratio 1:4:0.5:40, ageing 18 hours;
(2) B liquid TiO is prepared
2colloidal sol, by butyl (tetra) titanate, distilled water, after ammoniacal liquor and dehydrated alcohol mix ultrasonic 15min with mol ratio 1:4:0.8:50, ageing 18 hours;
(3) be after the ratio of 1:1.8 mixes ultrasonic 15min with mol ratio by A liquid and B liquid, add mass percent be 0.9% PEG600 and massfraction be the nanometer Bi of 0.5%
2s
3, ultrasonic 15min again, obtains C liquid;
(4) by glass to be coated successively through distilled water cleaning, alcohol wash, oven dry, then thermal treatment makes glass temperature remain on 550 DEG C;
(5) C liquid is sprayed at the glass surface after step (4) process, spraying number of times is 2 times, dries;
(6) glass after processing through step 6 is placed in annealing furnace tempering.
Embodiment 3
A kind of ultra-hydrophilic type self-cleaning glass preparation method, comprises the following steps:
(1) A liquid SiO is prepared
2colloidal sol, by tetraethoxy, distilled water, after ammoniacal liquor and dehydrated alcohol mix ultrasonic 15min with mol ratio 1:4:0.5:40, ageing 24 hours;
(2) B liquid TiO is prepared
2colloidal sol, by butyl (tetra) titanate, distilled water, after ammoniacal liquor and dehydrated alcohol mix ultrasonic 15min with mol ratio 1:4:0.8:50, ageing 24 hours;
(3) be after the ratio of 1:3.5 mixes ultrasonic 15min with mol ratio by A liquid and B liquid, add mass percent be 1.0% PEG600 and massfraction be the nanometer Bi of 0.8%
2s
3, ultrasonic 15min again, obtains C liquid;
(4) by glass to be coated successively through distilled water cleaning, alcohol wash, oven dry, then thermal treatment makes glass temperature remain on 450 DEG C;
(5) C liquid is sprayed at the glass surface after step (4) process, spraying number of times is 2 times, dries;
(6) glass after processing through step 6 is placed in annealing furnace tempering.
Performance test:
Measure of merit:
One, Contact-angle measurement result: embodiment 1:0.9 °, embodiment 2:0.3 °, embodiment 3:1.0 °, the self-cleaning glass that market is bought: 4.5 °.Can find out thus, the self-cleaning glass contact angle that the inventive method obtains is all lower than 5 °, and also have outstanding advantage compared with commercially available self-cleaning glass, contact angle is all lower than 2.0 °.
Two, super-hydrophilic thin film cohesive force on the glass substrate.The self-cleaning glass bought embodiment 1-3 and market carries out adhesive force respectively to be tested, and result is as follows:
Embodiment 1:28N, embodiment 2:30N, embodiment 3:27N, available glass: 11N.Result can be found out thus, has higher bonding strength between the super hydrophilic film that the inventive method obtains and substrate of glass.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (6)
1. a ultra-hydrophilic type self-cleaning glass preparation method, is characterized in that, comprises the following steps:
(1) A liquid SiO is prepared
2colloidal sol, by tetraethoxy, distilled water, ammoniacal liquor and dehydrated alcohol mixing ultrasonic after, ageing at least 12 hours;
(2) B liquid TiO is prepared
2colloidal sol, by butyl (tetra) titanate, distilled water, ammoniacal liquor and dehydrated alcohol mixing ultrasonic after, ageing at least 12 hours;
(3) be that the ratio of 1:1.2-1:3.5 mixes ultrasonic with mol ratio by A liquid and B liquid, obtain C liquid;
(4) by glass to be coated successively through distilled water cleaning, alcohol wash, oven dry, then thermal treatment makes glass temperature remain on 380-550 DEG C;
(5) C liquid is sprayed at the glass surface after step (4) process, dries;
(6) glass after processing through step 5 is placed in annealing furnace tempering.
2. ultra-hydrophilic type self-cleaning glass preparation method according to claim 1, is characterized in that, in step (6), the coating film thickness of glass surface is 100-180nm.
3. ultra-hydrophilic type self-cleaning glass preparation method according to claim 1, is characterized in that, is also added with the PEG600 that mass percent is 0.8-1.0% in C liquid.
4. ultra-hydrophilic type self-cleaning glass preparation method according to claim 1, is characterized in that, in step (3), the mol ratio of A liquid and B liquid is 1:1.8.
5. ultra-hydrophilic type self-cleaning glass preparation method according to claim 3, is characterized in that, is also added with the nano-tube/CdS that mass percent is 0.5-0.8% or nanometer Bi in described C liquid
2s
3.
6. ultra-hydrophilic type self-cleaning glass preparation method according to claim 1, is characterized in that, the spraying number of times of step (5) is 1-3 time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510716001.0A CN105271811A (en) | 2015-10-29 | 2015-10-29 | Super-hydrophilic self-cleaning glass preparation method |
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| CN201510716001.0A CN105271811A (en) | 2015-10-29 | 2015-10-29 | Super-hydrophilic self-cleaning glass preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592832A (en) * | 2016-12-10 | 2017-04-26 | 巫子涵 | Glass curtain wall with self-cleaning function |
| CN109485267A (en) * | 2017-09-12 | 2019-03-19 | 中国科学院大连化学物理研究所 | A kind of preparation method of the ultra-hydrophilic transparent anti-fog coating based on glass surface |
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| CN1634653A (en) * | 2004-12-02 | 2005-07-06 | 上海大学 | Method for preparing loaded nano titanium dioxide photocatalysis film |
| WO2009021524A1 (en) * | 2007-08-14 | 2009-02-19 | Scf Technologies A/S | Method and compositions for producing optically clear photocatalytic coatings |
| CN102898035A (en) * | 2011-07-28 | 2013-01-30 | 比亚迪股份有限公司 | Composite film, its preparation method and composite material |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592832A (en) * | 2016-12-10 | 2017-04-26 | 巫子涵 | Glass curtain wall with self-cleaning function |
| CN106592832B (en) * | 2016-12-10 | 2019-01-11 | 巫子涵 | A kind of glass curtain wall with self-cleaning function |
| CN109485267A (en) * | 2017-09-12 | 2019-03-19 | 中国科学院大连化学物理研究所 | A kind of preparation method of the ultra-hydrophilic transparent anti-fog coating based on glass surface |
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Application publication date: 20160127 |