CN113264689A - Anti-fogging toughened glass for vehicle and manufacturing process thereof - Google Patents
Anti-fogging toughened glass for vehicle and manufacturing process thereof Download PDFInfo
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- CN113264689A CN113264689A CN202110337701.4A CN202110337701A CN113264689A CN 113264689 A CN113264689 A CN 113264689A CN 202110337701 A CN202110337701 A CN 202110337701A CN 113264689 A CN113264689 A CN 113264689A
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- 239000005341 toughened glass Substances 0.000 title claims abstract description 84
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000012535 impurity Substances 0.000 claims abstract description 14
- 238000007747 plating Methods 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 239000010409 thin film Substances 0.000 claims abstract description 7
- 238000000889 atomisation Methods 0.000 claims abstract description 6
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 24
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 12
- 241000252506 Characiformes Species 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 230000032683 aging Effects 0.000 claims description 10
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 7
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 5
- 230000002431 foraging effect Effects 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000011521 glass Substances 0.000 abstract description 10
- 238000002834 transmittance Methods 0.000 abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 37
- 239000010408 film Substances 0.000 description 24
- 239000000377 silicon dioxide Substances 0.000 description 20
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 17
- 235000012239 silicon dioxide Nutrition 0.000 description 12
- 239000010936 titanium Substances 0.000 description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 7
- 238000005286 illumination Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000004408 titanium dioxide Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- ZVLDJSZFKQJMKD-UHFFFAOYSA-N [Li].[Si] Chemical compound [Li].[Si] ZVLDJSZFKQJMKD-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical compound [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- AZUYLZMQTIKGSC-UHFFFAOYSA-N 1-[6-[4-(5-chloro-6-methyl-1H-indazol-4-yl)-5-methyl-3-(1-methylindazol-5-yl)pyrazol-1-yl]-2-azaspiro[3.3]heptan-2-yl]prop-2-en-1-one Chemical compound ClC=1C(=C2C=NNC2=CC=1C)C=1C(=NN(C=1C)C1CC2(CN(C2)C(C=C)=O)C1)C=1C=C2C=NN(C2=CC=1)C AZUYLZMQTIKGSC-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 2
- 229910052808 lithium carbonate Inorganic materials 0.000 description 2
- 239000001103 potassium chloride Substances 0.000 description 2
- 235000011164 potassium chloride Nutrition 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
- C03C17/23—Oxides
- C03C17/25—Oxides by deposition from the liquid phase
-
- 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
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/213—SiO2
-
- 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
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/113—Deposition methods from solutions or suspensions by sol-gel processes
-
- 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
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
- C03C2218/32—After-treatment
Landscapes
- Chemical & Material Sciences (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 belongs to the technical field of automobile glass manufacturing, and particularly relates to automobile anti-fogging toughened glass and a manufacturing process thereof. The vehicular anti-atomization toughened glass comprises a toughened glass substrate and a hydrophilic thin film layer plated on the surface of the toughened glass substrate, wherein the hydrophilic thin film layer is SiO containing Ti and Li2And (5) coating with sol. The manufacturing process mainly comprises the following steps: (S1) preparation of SiO containing Ti and Li2Sol; (S2) removing impurities attached to the surface of the tempered glass; (S3) plating the SiO produced in the step (S1) on the surface of the tempered glass from which the impurities are removed2And (5) dissolving the sol and drying to form a plating layer. The anti-fogging toughened glass for the vehicle, provided by the invention, has excellent hydrophilic property and anti-fogging function, and also has light transmittance higher than that of the conventional toughened glass. The manufacturing process of the anti-fogging toughened glass for the vehicle, provided by the invention, is simple and convenient to operate and is convenient for large-scale operation.
Description
Technical Field
The invention belongs to the technical field of automobile glass manufacturing, and particularly relates to automobile anti-fogging toughened glass and a manufacturing process thereof.
Background
The automobile front windshield is generally made of laminated toughened glass or laminated zone toughened glass. When the temperature outside the automobile is obviously lower than the temperature inside the automobile, passengers inside the automobile exhale water vapor to pre-cool on the inner side of the windshield to form tiny liquid drops which are attached to the inner side of the windshield to form an atomized layer, so that the sight line of the driver and the driving safety are seriously affected.
The super-hydrophilic material is a material with a contact angle with water close to 0 degree, and water drops quickly spread to form a plane on the surface of the super-hydrophilic material and cannot form water drops, so that the glass with the anti-fogging function can be manufactured by loading a film made of the super-hydrophilic material on the surface of the glass. At present, the silicon dioxide-based super-hydrophilic film is widely researched due to stable and safe properties, simple and convenient synthesis and capability of improving the light transmittance of glass. The hydrophilicity of the silica thin film is mainly derived from the properties of the material itself and the surface roughness. The surface of the silicon dioxide film contains a large amount of hydroxyl, and the silicon dioxide film and the hydroxyl in water molecules form strong intermolecular force, so the silicon dioxide film has good hydrophilicity, but the super-hydrophilic material is not enough to be constructed only by the point. In addition, composite films of silica and titania are also an important research direction for hydrophilic films. Compared with a pure silicon dioxide film, the silicon dioxide and titanium dioxide composite film has certain advantages in hydrophilicity, the hydrophilicity is improved by utilizing the photoinduced hydrophilicity of anatase titanium dioxide under the illumination condition, and the contact angle under the ideal condition is almost 0 degree. However, in order to achieve the requirement of super-hydrophilicity, the content of titanium dioxide in the film is generally more than 30%, and the addition of a large amount of titanium dioxide can significantly reduce the light transmittance of the glass, so that the film is difficult to be practically applied. In addition, titanium dioxide can be excited only by ultraviolet light due to high transition energy level, and the photoinduced hydrophilic property can be realized only under the ultraviolet light, so that the existing silicon dioxide and titanium dioxide composite film cannot realize the anti-atomization function in cloudy days and rainy and snowy days.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides anti-fogging toughened glass for a vehicle and a manufacturing process thereof. The invention is based on the silicon dioxide film, adjusts the film forming process of the silicon dioxide film by doping the titanium element with lower content, and aims to obtain the anti-fogging glass with high light transmittance and high hydrophilicity by improving the path of the microcosmic roughness of the film.
The invention provides anti-fogging toughened glass for vehicles, which comprises a toughened glass substrate and a hydrophilic thin film layer plated on the surface of the toughened glass substrate. The manufacturing process mainly comprises the following steps:
(S1) preparation of SiO containing Ti and Li2Sol, wherein the molar ratio of Si, Ti and Li is 100:1.6-3.0: 0.5-0.8;
(S2) removing impurities attached to the surface of the tempered glass;
(S3) plating the SiO produced in the step (S1) on the surface of the tempered glass from which the impurities are removed2And (5) dissolving the sol and drying to form a plating layer.
Specifically, the step (S1) is: uniformly mixing water, ethanol, ethyl orthosilicate, tetrabutyl titanate and lithium chloride according to the molar ratio of 8-12:25-40:100:1.6-3.0:0.5-0.8, adjusting the pH value to be within the range of 3.0-4.0 by using concentrated hydrochloric acid, and standing and aging for 48-60 hours; the environmental temperature during the standing and aging process should be controlled within 20-30 deg.C.
In the step (S2), the surface of the tempered glass is coated with piranha solution or the tempered glass is soaked in the piranha solution to remove impurities. The piranha solution is a mixture of concentrated sulfuric acid and 30% hydrogen peroxide in a volume ratio of 7: 3. Specifically, the step (S2) is: soaking the toughened glass in a normal-temperature piranha solution for 5-8min, taking out the toughened glass, washing the surface with deionized water, placing the toughened glass in ethanol, ultrasonically oscillating for 5-10min, taking out the toughened glass, and airing in a dust-free environment.
In the step (S3), SiO is formed by dip-coating method2The sol is plated on the surface of the toughened glass. Specifically, the step (S3) is: in a dust-free environment of 20-30 ℃, SiO is treated by adopting a dipping pulling method2Coating the sol on the surface of toughened glass at a pulling rate of 2-3cm/min, and naturally drying; then placing the mixture in an oven with the temperature of 220 ℃ and 240 ℃ for aging for 5-6 h.
Has the advantages that: compared with the prior art, the anti-atomization toughened glass for the vehicle has excellent hydrophilic property and anti-atomization function, and water drops are easy to spread on the surface without forming water drops, so that irregular refraction and scattering of light rays generated by the water drops can be avoided, and the anti-atomization effect is achieved. The anti-fogging toughened glass provided by the invention also has higher light transmission than that of the conventional toughened glass, and the anti-fogging effect of the anti-fogging toughened glass does not depend on the ultraviolet illumination condition, so that the anti-fogging toughened glass has excellent adaptability. The manufacturing process of the anti-fogging toughened glass for the vehicle, provided by the invention, is simple and convenient to operate and is convenient for large-scale operation.
Detailed Description
The invention is further illustrated by the following specific examples, which are illustrative and intended to illustrate the problem and explain the invention, but not limiting.
Example 1
A manufacturing process of anti-fogging toughened glass for vehicles comprises the following steps:
(S1) preparation of SiO containing Ti and Li2Sol;
(S2) removing impurities attached to the surface of the tempered glass;
(S3) plating (S1) on the surface (single side) of the tempered glass with impurities removed to obtain SiO2And (5) dissolving the sol and drying to form a plating layer.
The step (S1) in this embodiment is: mixing water, ethanol, ethyl orthosilicate, tetrabutyl titanate and lithium chloride according to a molar ratio of 9:32:100:2.2:0.6, stirring for 2 hours, adjusting the pH value to 3.5 by using concentrated hydrochloric acid, continuing stirring for 0.5 hour, and then standing and aging for 60 hours; the environmental temperature during the standing and aging process should be controlled within 20-30 deg.C.
The step (S2) in this embodiment is: soaking the toughened glass in a normal-temperature piranha solution for 5min, taking out the toughened glass, washing the surface with deionized water, placing the toughened glass in ethanol, ultrasonically oscillating for 10min, taking out the toughened glass, and airing in a dust-free environment.
The step (S3) in this embodiment is: in a dust-free environment of 20-30 ℃, SiO is treated by adopting a dipping pulling method2Coating the sol on the surface of toughened glass at a pulling rate of 2cm/min, and naturally drying; and then placing the glass in an oven at 230 ℃ for aging for 6 hours to obtain the anti-fogging toughened glass.
Example 2
A manufacturing process of anti-fogging toughened glass for vehicles comprises the following steps:
(S1) preparation of SiO containing Ti and Li2Sol;
(S2) removing impurities attached to the surface of the tempered glass;
(S3) plating (S1) on the surface (single side) of the tempered glass with impurities removed to obtain SiO2And (5) dissolving the sol and drying to form a plating layer.
The step (S1) in this embodiment is: mixing water, ethanol, ethyl orthosilicate, tetrabutyl titanate and lithium chloride according to a molar ratio of 12:40:100:1.6:0.58, stirring for 1h, adjusting the pH value to 4.0 by using concentrated hydrochloric acid, continuing stirring for 0.5h, and then standing and aging for 48 h; the environmental temperature during the standing and aging process should be controlled within 20-30 deg.C.
The step (S2) in this embodiment is: soaking the toughened glass in a normal-temperature piranha solution for 8min, taking out the toughened glass, washing the surface with deionized water, placing the toughened glass in ethanol, ultrasonically oscillating for 5min, taking out the toughened glass, and airing in a dust-free environment.
The step (S3) in this embodiment is: in a dust-free environment of 20-30 ℃, SiO is treated by adopting a dipping pulling method2Coating the sol on the surface of toughened glass at a pulling rate of 2cm/min, and naturally drying; and then placing the glass in an oven at 220 ℃ for aging for 5 hours to obtain the anti-fogging toughened glass.
Example 3
A manufacturing process of anti-fogging toughened glass for vehicles comprises the following steps:
(S1) preparation of SiO containing Ti and Li2Sol;
(S2) removing impurities attached to the surface of the tempered glass;
(S3) plating (S1) on the surface (single side) of the tempered glass with impurities removed to obtain SiO2And (5) dissolving the sol and drying to form a plating layer.
The step (S1) in this embodiment is: mixing water, ethanol, ethyl orthosilicate, tetrabutyl titanate and lithium chloride according to a molar ratio of 8:25:100:3.0:0.8, stirring for 2 hours, adjusting the pH value to 3.0 by using concentrated hydrochloric acid, continuing stirring for 0.5 hour, and then standing and aging for 60 hours; the environmental temperature during the standing and aging process should be controlled within 20-30 deg.C.
The step (S2) in this embodiment is: soaking the toughened glass in a normal-temperature piranha solution for 5min, taking out the toughened glass, washing the surface with deionized water, placing the toughened glass in ethanol, ultrasonically oscillating for 10min, taking out the toughened glass, and airing in a dust-free environment.
The step (S3) in this embodiment is: in a dust-free environment of 20-30 ℃, SiO is treated by adopting a dipping pulling method2Coating the sol on the surface of toughened glass at a pulling rate of 3cm/min, and naturally drying; and then placing the glass in a baking oven at 240 ℃ for aging for 6 hours to obtain the anti-fogging toughened glass.
The light transmittance and hydrophilic properties of examples 1 to 3 were measured, and the results are shown in table 1. The light transmittance test selects monochromatic light with wavelengths of 400nm, 600nm and 800nm respectively, and detects the light intensity of the light which penetrates through the sample compared with the incident light to obtain the light transmittance. The contact angle test is respectively carried out under the conditions of dark light, indoor natural illumination and ultraviolet illumination. The results show that the light transmittance of each example is improved to a certain extent compared with that of a toughened glass substrate, and the low content of titanium element introduced into the silicon dioxide does not influence the anti-reflection property of the silicon dioxide film. The contact angle of each embodiment is remarkably reduced compared with that of a toughened glass substrate, and the fact that the film plated on the toughened glass substrate has excellent hydrophilic performance is shown, and the anti-fogging function can be achieved. In addition, the contact angle is not changed by changing the illumination condition, which shows that the hydrophilic performance of the invention is independent of ultraviolet illumination, and also shows that the hydrophilic mechanism of the invention does not come from the photo-hydrophilic characteristic of titanium dioxide. From the viewpoint of the proportion of titanium atoms to silicon atoms, the proportion of titanium atoms of about 2% is not sufficient to have a significant effect on the number of hydroxyl groups on the silica surface. Therefore, the hydrophilic characteristic in the present invention is most likely due to the change in the microstructure of the surface of the silicon dioxide film.
TABLE 1
Reference proportions 1a to 1c
The ionic auxiliary lithium chloride in example 1 was replaced with a different ionic salt to examine the effect of the type of ionic auxiliary on the film formation and hydrophilicity of silica. Specifically, reference example 1a was prepared by replacing lithium chloride with an equimolar amount of potassium chloride, and the remaining conditions were not changed; reference 1b is the replacement of lithium chloride with an equimolar amount of sodium chloride, the rest conditions remaining unchanged; reference 1c is the replacement of lithium chloride with 1/2 molar quantities of lithium carbonate, the remaining conditions being unchanged. The contact angles of the samples prepared in reference examples 1a to 1c were measured (under indoor natural light environment), and the results are shown in Table 2. Therefore, lithium ions in the lithium chloride play a vital role in optimizing film formation and improving hydrophilicity, the lithium ions are replaced by the alkali metal ions of the same group with larger volume, and the hydrophilicity is obviously changed. The kind of anion is changed while keeping the lithium ion strength, and the influence is relatively slight, although the hydrophilicity is also influenced.
TABLE 2
| Sample examples | Ionic auxiliary | Contact angle (°) |
| Reference example 1a | Potassium chloride | 28 |
| Reference ratio 1b | Sodium chloride | 25 |
| Reference ratio 1c | Lithium carbonate | 5 |
Reference ratio 2a-2n
Modification of SiO in example 12The silicon-titanium ratio of the sol is unchanged under the rest conditions. The molar ratios of water, ethanol, ethyl orthosilicate, tetrabutyl titanate, lithium chloride and the corresponding contact angles are shown in table 3. The result shows that the control of the silicon-titanium ratio in a reasonable range is the premise of realizing super-hydrophilicity, the extremely low titanium content cannot generate obvious effect, the silicon-titanium ratio is controlled to be 100:1.6: 3.0, the contact angle can be obviously reduced, the titanium content is further improved, but the hydrophilic performance is obviously deteriorated, and the film with high titanium content has the hydrophilicity equivalent to that of the traditional titanium dioxide photoinduced hydrophilic film under the non-ultraviolet illumination condition.
TABLE 3
Reference proportions 3a to 3l
Modification of SiO in example 12The silicon-lithium ratio of the sol is unchanged under the rest conditions. The molar ratios of water, ethanol, ethyl orthosilicate, tetrabutyl titanate, lithium chloride and the corresponding contact angles are shown in table 4. The results show that the hydrophilicity of the material is very sensitive to the silicon-lithium ratio, which may be related to the ion induction of small volumes of lithium ions during the silica film formation, and that controlling the silicon-lithium ratio in the range of 100:0.5-0.8 is the optimal silicon-lithium ratio.
TABLE 4
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.
Claims (8)
1. The vehicular anti-atomization toughened glass is characterized by comprising a toughened glass substrate and a hydrophilic thin film layer plated on the surface of the toughened glass substrate, wherein the hydrophilic thin film layer is SiO containing Ti and Li2And (5) coating with sol.
2. The vehicular antifogging tempered glass of claim 1, wherein the molar ratio of Si, Ti, Li elements in the hydrophilic thin film layer is 100:1.6-3.0: 0.5-0.8.
3. The manufacturing process of the anti-fogging tempered glass for vehicles according to claim 1, comprising the steps of:
(S1) preparation of SiO containing Ti and Li2Sol, wherein the molar ratio of Si, Ti and Li is 100:1.6-3.0: 0.5-0.8;
(S2) removing impurities attached to the surface of the tempered glass;
(S3) plating the SiO produced in the step (S1) on the surface of the tempered glass from which the impurities are removed2And (5) dissolving the sol and drying to form a plating layer.
4. The process of manufacturing a tempered glass for vehicle use as claimed in claim 3, wherein the step (S1) is: uniformly mixing water, ethanol, ethyl orthosilicate, tetrabutyl titanate and lithium chloride according to the molar ratio of 8-12:25-40:100:1.6-3.0:0.5-0.8, adjusting the pH value to be within the range of 3.0-4.0 by using concentrated hydrochloric acid, and standing and aging for 48-60 hours; the environmental temperature during the standing and aging process should be controlled within 20-30 deg.C.
5. The process of manufacturing tempered glass for vehicles according to claim 3, wherein in the step (S2), the surface of the tempered glass is coated with piranha solution or the tempered glass is immersed in the piranha solution to remove impurities.
6. The process of manufacturing a tempered glass for vehicle use as claimed in claim 3, wherein the step (S2) is: soaking the toughened glass in a normal-temperature piranha solution for 5-8min, taking out the toughened glass, washing the surface with deionized water, placing the toughened glass in ethanol, ultrasonically oscillating for 5-10min, taking out the toughened glass, and airing in a dust-free environment.
7. The process of manufacturing tempered glass for vehicle use according to claim 3, wherein in the step (S3), SiO is formed by dip-draw method2The sol is plated on the surface of the toughened glass.
8. The process of manufacturing a tempered glass for vehicle use as claimed in claim 3, wherein the step (S3) is: in a dust-free environment of 20-30 ℃, SiO is treated by adopting a dipping pulling method2Coating the sol on the surface of toughened glass at a pulling rate of 2-3cm/min, and naturally drying; then placing the mixture in an oven with the temperature of 220 ℃ and 240 ℃ for aging for 5-6 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110337701.4A CN113264689A (en) | 2021-03-30 | 2021-03-30 | Anti-fogging toughened glass for vehicle and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110337701.4A CN113264689A (en) | 2021-03-30 | 2021-03-30 | Anti-fogging toughened glass for vehicle and manufacturing process thereof |
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Application publication date: 20210817 |