Super-wettable colored glass and preparation method thereof
By using float glass and sol-gel method to plating low-refractive index silicon oxide and super-hydrophilic aluminum phosphate films in colored glass, combined with hydrophobic treatment, the existing stained glass has been solved by condensing water droplets and atomization on the surface of the existing stained glass under a wet environment. The problem of this paper realizes real visual effects and simplifies the industrial production of film systems.
Patent Information
- Application Number
- CN202311492749.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-10
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2043-11-10
AI Technical Summary
The film system during the preparation of existing stained glass is complex, the preparation process is complicated, and the surface is super wet, which causes water droplets and atomization on rainy days or high humidity environments, affecting the color effect.
Using float glass as the substrate, a low-refractive index silicon oxide film is plating as a transition layer by sol-gel method, and super-hydrophilic aluminum phosphate film is plating on it as a super-immersion layer. Combined with hydrophobic treatment, a super-immersion layer is formed , a colored layer is installed on the back to ensure that water droplets and atomization are not easy to condense in wet environments.
It realizes the real visual effect of stained glass in rainy days or high humidity environments, reduces surface fog and color distortion, and simplifies the film system and is easy to produce on a large scale.
Smart Images
Figure CN117361897B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of functional film materials, and in particular to a super-wettable colored glass and a preparation method thereof. Background Art
[0002] Colored glass is widely used in photovoltaic cover panels, architectural glass and other fields. However, due to the characteristics of the glass surface, water droplets are easily condensed on the surface in rainy days or high humidity environments, causing surface atomization, which in turn affects the color effect of the colored glass. By hydrophilizing or hydrophobizing the glass surface, the impact of atomization on the color effect can be effectively reduced.
[0003] For example: Patent CN213126087U discloses a double-layer coated mobile phone back panel, which replaces the traditional color layer with a color film and is arranged between the texture layer and the reflective layer, which helps to improve the photocatalytic performance and light transmittance without distortion problems. However, it does not mention the problem of color distortion in a foggy environment. Patent CN208201104U discloses an ultra-hard waterproof and anti-fouling coating, including a base layer and a film layer, an anti-fouling layer and an air medium layer arranged in sequence above the base layer. It not only provides brilliant colors, but also has high mechanical strength and corrosion resistance. After adding the anti-fouling layer, the feel and durability of the plated parts are significantly improved, but the film system is complex and no anti-reflection film layer is introduced. Summary of the invention
[0004] The purpose of the present invention is to provide a super-wetting colored glass and a preparation method thereof, so as to solve the following technical problems: the preparation process of existing colored glass generally has complex film systems, cumbersome preparation processes, and does not consider anti-reflection and surface super-wetting.
[0005] The purpose of the present invention can be achieved through the following technical solutions:
[0006] A super-wet colored glass, comprising: a glass substrate, wherein the glass substrate is float glass and has a thickness of 0.75-1.6 mm;
[0007] A transition layer is provided on the glass substrate, and the transition layer is coated with a low-refractive-index silicon oxide film by a sol-gel method;
[0008] A super-wetting layer is provided on the transition layer, and the super-wetting layer is located above the transition layer and covers it completely;
[0009] A color layer is arranged on the back of the glass substrate, and the color layer is located on the uncoated side of the glass substrate.
[0010] As a further solution of the present invention: the glass substrate, transition layer, super-wet layer and back color layer constitute super-wet colored glass, the surface of which is not easy to condense water droplets or fog in rainy days or high humidity environments, and can present the real visual effect of colored glass.
[0011] As a further solution of the present invention: the transition layer is coated with a layer of low-refractive-index silicon oxide film, with a refractive index of 1.39-1.45 and a thickness of 20-60nm. The silicon oxide film transition layer adopts a sol-gel method, with tetraethyl orthosilicate as the raw material, ammonium chloride as the coordination agent, hydrochloric acid to adjust the pH value, ethanol sol to prepare the film by immersion and pulling. The thickness is controlled by the pulling rate, immersion time and sol concentration, and heat-treated at 400-550°C to obtain a silicon oxide film with a thickness of 20-60nm and a refractive index of 1.39-1.45.
[0012] As a further solution of the present invention: the super-wetting layer is a super-hydrophilic layer, or a hydrophilic layer with its surface treated to be hydrophobic.
[0013] As a further solution of the present invention: the super-wetting layer is a super-hydrophilic layer, and a layer of aluminum phosphate film is plated by the sol-gel method, with a refractive index of less than 1.4 and a thickness of 80-110nm to achieve a super-hydrophilic effect; specifically, the sol-gel method is adopted, pseudo-boehmite and ammonium dihydrogen phosphate are used as raw materials, hydroxypropyl methylcellulose and polyethylene glycol are added, and a hydrosol is prepared, and the film is plated by dipping and pulling. The thickness is controlled by the pulling rate, the dipping time and the sol concentration, and the aluminum phosphate film with a thickness of 80-110nm and a refractive index of 1.4 is obtained by heat treatment at 450-550°C. Aluminum phosphate itself is easy to form a molecular sieve structure, and it has a higher surface energy than water. Water is very easy to spread and diffuse on its surface, and water droplets cannot be formed, and light scattering cannot be generated. Therefore, it has hydrophilic and anti-fog effects, which can effectively reduce the influence of water droplets or atomization on color effects.
[0014] As a further solution of the present invention: the super wetting layer also includes a hydrophobic layer coated on the surface of the aluminum phosphate film layer. Low surface energy substances are coated on the surface of the aluminum phosphate film to achieve a super hydrophobic effect; wherein, the hydrophobic treatment described in the super wetting layer is hydrophobicized using low surface energy substances. The low surface energy substances are: one or a combination of trichlorosilane, trimethoxysilane, triethoxysilane, tridecafluorooctyl triethoxysilane, and heptadecafluorodecyl triethoxysilane. For example, an ethanol solution of heptadecafluorodecyl triethoxysilane is used to hydrophobize the surface of the aluminum phosphate film, hydrolyze at room temperature for more than 6 hours, then put into an oven, dry and cure at 90-120°C for 1 hour to form a hydrophobic layer. The remaining low surface energy substances can be made into hydrophobic layers by conventional means in the art, which will not be described here. In addition, since the above substances are all low surface energy substances, no chemical reaction will occur to produce new substances when they are combined.
[0015] As a further solution of the present invention: in order to make the super-wettable colored glass suitable for use in an environment where it is fully in contact with air, a super-wettable layer is also provided on the surface of the colored layer to achieve the effect of waterproofing and anti-fogging the entire surface of the super-wettable colored glass, so as to reduce the impact on the visual effect of the colored glass.
[0016] Beneficial effects of the present invention: Compared with the existing colored glass structure, the super-wet colored glass structure of the present invention can reduce surface fogging, thereby reducing color distortion. In addition, the super-wet colored glass structure of the present invention has a simpler film system and is easy to mass-produce industrially. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The present invention will be further described below in conjunction with the accompanying drawings.
[0018] Figure 1 It is a schematic diagram of the structure of the present invention;
[0019] Figure 2 This is a water contact angle test diagram of Example 1 of the present invention;
[0020] Figure 3 This is a photo of the actual object of Example 1 of the present invention;
[0021] Figure 4 This is a water contact angle test diagram of Example 2 of the present invention;
[0022] Figure 5 This is a photo of the actual object of Example 3 of the present invention. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0024] Example 1
[0025] See also Figure 1 As shown, the present invention provides a super-wettable colored glass, comprising: a glass substrate 1, wherein the glass substrate 1 is a float glass with a thickness of 0.75-1.6 mm;
[0026] A transition layer 2 is provided on a glass substrate 1, and the transition layer 2 is coated with a low-refractive-index silicon oxide thin film by a sol-gel method;
[0027] A super-wetting layer 4 is provided on the transition layer 2, and the super-wetting layer 4 is located above the transition layer 2 and covers the entire layer;
[0028] A color layer 3 is provided on the back of the glass substrate 1 , and the color layer 3 is located on the uncoated side of the glass substrate 1 .
[0029] The super-wet colored glass obtained in the present invention has color itself and ensures that the color is not distorted in rainy days or when fog is easily formed.
[0030] Embodiment 2
[0031] See also Figure 1-5 As shown, the present invention provides a method for preparing super-wettable colored glass, comprising the following steps:
[0032] The glass substrate 1 is specifically a 0.75 mm thick float glass, and the glass is cleaned with acid and alkali to remove surface contaminants;
[0033] Transition layer 2, a low-refractive-index silicon oxide film is plated by a sol-gel method, specifically, the sol-gel method is adopted, tetraethyl orthosilicate is used as the raw material, ammonium chloride is added as the coordination agent, hydrochloric acid is used to adjust the pH value, ethanol sol is prepared, and the film is plated by immersion and pulling. The thickness is controlled by the pulling rate, immersion time and sol concentration, and a 20-60nm silicon oxide film is obtained by heat treatment at 400-550°C;
[0034] Super wetting layer 4, prepare aluminum phosphate super hydrophilic layer by sol-gel method, specifically adopt sol-gel method, use pseudo-boehmite and ammonium dihydrogen phosphate as raw materials, add hydroxypropyl methylcellulose and polyethylene glycol, prepare hydrosol, and coat by immersion and pulling. The thickness is controlled by pulling rate, immersion time and sol concentration, and heat treatment is performed at 450-550°C to obtain aluminum phosphate film with a thickness of 80-110nm;
[0035] The back color layer 3 is prepared by magnetron sputtering of a silicon nitride color film, specifically, the magnetron sputtering method is adopted, Si target material, RF power is 160-240W, working pressure is 0.8-1.5Pa, argon flow rate is 15-25sccm, nitrogen flow rate is 1-2sccm, and the thickness of the deposited color layer is 120-200nm.
[0036] Embodiment 3
[0037] See also Figure 1-5 As shown, the present invention provides a method for preparing super-wettable colored glass, comprising the following steps:
[0038] A glass substrate 1, specifically a 1 mm thick float glass, is subjected to acid and alkali cleaning to remove surface contaminants;
[0039] Transition layer 2, a low-refractive-index silicon oxide film is plated by a sol-gel method, specifically, the sol-gel method is adopted, tetraethyl orthosilicate is used as the raw material, ammonium chloride is added as the coordination agent, hydrochloric acid is used to adjust the pH value, ethanol sol is prepared, and the film is plated by immersion and pulling. The thickness is controlled by the pulling rate, immersion time and sol concentration, and a 20-60nm silicon oxide film is obtained by heat treatment at 400-550°C;
[0040] Super wetting layer 4, prepare the super hydrophilic layer of aluminum phosphate by sol-gel method, specifically adopt sol-gel method, use pseudo-boehmite and ammonium dihydrogen phosphate as raw materials, add hydroxypropyl methylcellulose and polyethylene glycol, prepare hydrosol, and coat by dipping and pulling. The thickness is controlled by pulling rate, dipping time and sol concentration, and heat treatment is performed at 450-550°C to obtain an aluminum phosphate film with a thickness of 80-110nm. The surface of the aluminum phosphate film is hydrophobized by using an ethanol solution of heptadecafluorodecyltriethoxysilane, hydrolyzed at room temperature for more than 6 hours, and then placed in an oven and dried and cured at 90-120°C for 1 hour;
[0041] The back color layer 3 is prepared by magnetron sputtering of a silicon nitride color film, specifically, the magnetron sputtering method is adopted, Si target material, RF power is 160-240W, working pressure is 0.8-1.5Pa, argon flow rate is 15-25sccm, nitrogen flow rate is 1-2sccm, and the thickness of the deposited color layer 3 is 120-200nm.
[0042] Embodiment 4
[0043] See also Figure 1-5 As shown, the present invention provides a method for preparing super-wettable colored glass, comprising the following steps:
[0044] A glass substrate 1, specifically a 1 mm thick float glass, is subjected to acid and alkali cleaning to remove surface contaminants;
[0045] Transition layer 2, a low-refractive-index silicon oxide film is plated by a sol-gel method, specifically, the sol-gel method is adopted, tetraethyl orthosilicate is used as the raw material, ammonium chloride is added as the coordination agent, hydrochloric acid is used to adjust the pH value, ethanol sol is prepared, and the film is plated by immersion and pulling. The thickness is controlled by the pulling rate, immersion time and sol concentration, and a 20-60nm silicon oxide film is obtained by heat treatment at 400-550°C;
[0046] Super wetting layer 4, prepare aluminum phosphate super hydrophilic layer by sol-gel method, specifically adopt sol-gel method, use pseudo-boehmite and ammonium dihydrogen phosphate as raw materials, add hydroxypropyl methylcellulose and polyethylene glycol, prepare hydrosol, and coat by immersion and pulling. The thickness is controlled by pulling rate, immersion time and sol concentration, and heat treatment is performed at 450-550°C to obtain aluminum phosphate film with a thickness of 80-110nm;
[0047] The back color layer 3 is prepared by magnetron sputtering of zirconium oxide color film, specifically, magnetron sputtering, Zr target, RF power of 150-250W, working pressure of 1-1.4pa, argon flow rate of 15-25sccm, and the thickness of the deposited L3 is 160-280nm.
[0048] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.
Claims
1. A super-wet colored glass, characterized in that: include: A glass substrate (1), wherein the glass substrate (1) is float glass and has a thickness of 0.75-1.6 mm; A transition layer (2) is provided on a glass substrate (1), wherein the transition layer (2) is a layer of silicon oxide thin film with a low refractive index deposited by a sol-gel method, wherein the silicon oxide thin film has a refractive index of 1.39-1.45 and a thickness of 20-60 nm; A super-wetting layer (4) is provided on the transition layer (2), wherein the super-wetting layer (4) is located above the transition layer (2) and covers the entirety of the transition layer; A color layer (3) is provided on the uncoated side of the glass substrate (1), and a superwetting layer (4) is also provided on the surface of the color layer (3); The super wetting layer (4) is composed of an aluminum phosphate thin film layer (41) and a hydrophobic layer (42) on the surface of the aluminum phosphate thin film layer (41); The aluminum phosphate film layer (41) is prepared by a sol-gel method: using pseudo-boehmite and ammonium dihydrogen phosphate as raw materials, adding hydroxypropyl methylcellulose and polyethylene glycol to prepare a hydrosol, and coating the film by dipping and pulling; controlling the thickness by pulling rate, dipping time and sol concentration, and heat treating at 450-550° C. to obtain an aluminum phosphate film with a refractive index less than 1.4 and a thickness of 80-110 nm; The hydrophobic layer (42) is prepared by the following steps: coating a low surface energy substance on the surface of the aluminum phosphate film, hydrolyzing it at room temperature for more than 6 hours, and then placing it in an oven and drying and curing it at 90-120° C. for 1 hour to form a hydrophobic layer (42); The color layer (3) is one of silicon nitride, zirconium oxide, aluminum oxide, and titanium oxide thin films; the color layer (3) is prepared by magnetron sputtering, and the thickness of the color layer (3) is 120-200 nm.
2. The super-wettable colored glass according to claim 1, characterized in that: The transition layer is prepared by a sol-gel method: tetraethyl orthosilicate is used as a raw material, ammonium chloride is added as a complexing agent, hydrochloric acid is used to adjust the pH value, an ethanol sol is prepared, and a film is coated by immersion and pulling; the thickness is controlled by the pulling rate, the immersion time and the sol concentration, and a heat treatment is performed at 400-550° C. to obtain the silicon oxide film.
3. The super-wettable colored glass according to claim 1, characterized in that: The low surface energy substance is one or a combination of trichlorosilane, trimethoxysilane, triethoxysilane, tridecafluorooctyltriethoxysilane, and heptadecafluorodecyltriethoxysilane.
4. The method for preparing super-wettable colored glass according to claim 1, characterized in that: The following steps are involved: Preparation of glass substrate (1), acid and alkali cleaning of float glass to remove surface contaminants; The transition layer (2) is prepared by depositing a low refractive index silicon oxide film by a sol-gel method; Preparation of super-wetting layer (4): preparing super-hydrophilic aluminum phosphate layer by sol-gel method; The back color layer (3) is prepared by using a magnetron sputtering method to prepare a silicon nitride color layer.