CN114075041B - Frosting liquid and preparation method thereof, frosted glass and processing method thereof - Google Patents
Frosting liquid and preparation method thereof, frosted glass and processing method thereof Download PDFInfo
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- CN114075041B CN114075041B CN202010809128.8A CN202010809128A CN114075041B CN 114075041 B CN114075041 B CN 114075041B CN 202010809128 A CN202010809128 A CN 202010809128A CN 114075041 B CN114075041 B CN 114075041B
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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
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The application discloses frosting liquid and a preparation method thereof, frosted glass and a processing method thereof. The frosting liquid comprises the following components: the glass comprises a first component and a second component, wherein the first component comprises 60-70 parts by weight of ammonium bifluoride, 25-30 parts by weight of ammonium fluosilicate, 2-5 parts by weight of sodium fluosilicate, 2-5 parts by weight of calcium fluosilicate and 0.2-0.5 part by weight of crystal form control agent, the second component comprises 45-55 parts by weight of water and 45-55 parts by weight of nitric acid, and after the frosting liquid reacts with the glass, pointed protrusions are formed on the surface of the glass. Therefore, the glass surface etched by the frosting liquid can form pointed bulges, and when the pointed bulges on the glass surface are irradiated by light, the effect of flashing light can be displayed, so that the appearance diversification of the rear cover of the glass battery is improved.
Description
Technical Field
The application relates to the technical field of glass frosting, in particular to frosting liquid and a preparation method thereof, frosted glass and a processing method thereof.
Background
Glass frosting is a process for etching glass by using a frosting liquid, and the glass can show a certain haze after being subjected to frosting treatment. Currently, a glass battery rear cover with a frosting effect is generally formed by adopting a frosting treatment. However, the particles formed by the reaction of the frosting liquid and the glass at present are generally spherical particles, and the effect presented by the glass is also simply a frosting effect, so that the requirements of users on various appearances are difficult to meet.
Therefore, the prior frosting liquid and a preparation method thereof, frosted glass and a processing method thereof still need to be improved.
Disclosure of Invention
The present application aims to at least somewhat alleviate or solve at least one of the above mentioned problems. In view of this, the present application proposes a frosting liquid capable of causing glass to exhibit a sparkling effect.
In one aspect of the present application, a frosting liquid is presented. The frosting liquid comprises the following components: the glass comprises a first component and a second component, wherein the first component comprises 60-70 parts by weight of ammonium bifluoride, 25-30 parts by weight of ammonium fluosilicate, 2-5 parts by weight of sodium fluosilicate, 2-5 parts by weight of calcium fluosilicate and 0.2-0.5 part by weight of crystal form control agent, the second component comprises 45-55 parts by weight of water and 45-55 parts by weight of nitric acid, and after the frosting liquid reacts with the glass, pointed protrusions are formed on the surface of the glass. Therefore, the glass surface etched by the frosting liquid can form pointed bulges, and when the pointed bulges on the glass surface are irradiated by light, the effect of flashing light can be displayed, so that the appearance diversification of the rear cover of the glass battery is improved.
In another aspect of the present application, a method of preparing the aforementioned frosting liquid is provided. The method comprises the following steps: mixing and stirring 60-70 parts by weight of ammonium bifluoride, 25-30 parts by weight of ammonium fluosilicate, 2-5 parts by weight of sodium fluosilicate, 2-5 parts by weight of calcium fluosilicate and 0.2-0.5 part by weight of a crystal form control agent to obtain the first component; mixing 45-55 parts by weight of water and 45-55 parts by weight of nitric acid, and stirring to obtain the second component; and mixing, curing and filtering the first component and the second component to obtain the frosting liquid. Thus, a frosting liquid capable of giving a sparkling effect to glass can be obtained by a simple method.
In another aspect of the present application, a method of processing frosted glass is presented. The method comprises the following steps: performing swing etching on a preset area of the glass substrate by using the frosting liquid to form a frosting part, wherein the frosting part is provided with pointed protrusions; and cleaning the glass substrate subjected to swing etching to obtain the frosted glass. Thus, a frosted glass capable of exhibiting a sparkling effect can be obtained by a simple method.
In another aspect of the present application, a frosted glass is presented. The frosted glass is formed by processing the glass by the method. Thus, the frosted glass can exhibit a sparkling effect.
Drawings
FIG. 1 shows a schematic flow chart of a method of preparing a frosting liquid according to one example of the present application;
FIG. 2 shows a schematic flow chart of a method of frosting glass processing according to one example of the present application;
fig. 3 shows an electron micrograph of the frosted glass of example 1.
Detailed Description
Examples of the present application are described in detail below, by way of example with reference to the accompanying drawings, which are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In one aspect of the present application, a frosting liquid is presented. According to an example of the present application, the frosting liquid includes a first component including 60 to 70 parts by weight of ammonium bifluoride, 25 to 30 parts by weight of ammonium fluorosilicate, 2 to 5 parts by weight of sodium fluorosilicate, 2 to 5 parts by weight of calcium fluorosilicate and 0.2 to 0.5 part by weight of a crystal form control agent, and a second component including 45 to 55 parts by weight of water and 45 to 55 parts by weight of nitric acid, and the frosting liquid, after reacting with glass, may form sharp protrusions on the surface of the glass. Therefore, the glass surface etched by the frosting liquid can form pointed bulges, and when the pointed bulges on the glass surface are irradiated by light, the effect of flashing light can be displayed, so that the appearance diversification of the rear cover of the glass battery is improved.
In the application, the frosting liquid composed of the components meeting the mass content is a saturated solution, silicon tetrafluoride is generated by the reaction of hydrofluoric acid and silicon dioxide in glass in the reaction process of the frosting liquid and the glass, fluosilicic acid is generated by the reaction of the silicon tetrafluoride and water, so that fluosilicic acid radical ions in a system reach supersaturation, ammonium fluosilicate, sodium fluosilicate, calcium fluosilicate and the like are subjected to nucleation, and in addition, sodium ions can be released by the reaction of hydrofluoric acid and sodium oxide in the glass, so that sodium ions in the system are supersaturated, and sodium fluosilicate is also subjected to nucleation.
The crystal form control agent in the frosting liquid is used for adsorbing positive ions (such as NH 4 + 、Na + 、Ga 2+ ) Or negative ions (e.g. SiF) 6 2- ) During the reaction of the frosting liquid and the glass, ammonium fluosilicate, sodium fluosilicate and calcium fluosilicate are nucleated around the crystal form control agent, and the crystal grain shapes of ammonium fluosilicate, sodium fluosilicate and calcium fluosilicate are controlled to form prismatic particlesThe pyramid-shaped particles are attached to the surface of the glass, so that etching can be prevented, the glass is etched by the frosting liquid along the outline of the pyramid-shaped particles, pointed protrusions similar to the pyramid-shaped particles in shape are formed on the surface of the glass, and the glass subjected to frosting treatment shows a flashing effect.
In this application, ammonium bifluoride in the first component provides fluoride ions and nitric acid in the second component provides hydrogen ions, which form hydrofluoric acid with the fluoride ions to etch glass. Ammonium fluorosilicate in the first component is used to provide NH 4 + And SiF 6 2- Sodium fluorosilicate is used for providing Na + And SiF 6 2- Calcium fluorosilicate is used to provide Ga 2+ And SiF 6 2- To provide the desired ions for subsequent pyramid-like particle formation.
The present inventors have found that if nitric acid is substituted for sulfuric acid, the solubility of sulfate salts (e.g., ammonium sulfate, sodium sulfate, calcium sulfate) is significantly lower than that of nitrate salts, thereby providing NH 4 + 、Na + 、Ga 2+ The amount of the glass is small, and in the process of reacting with the glass, the problems of fewer pyramid-shaped particles and small particles exist, so that the sharp protrusions on the surface of the glass are unevenly distributed, the sizes of the sharp protrusions are small, the flashing effect of the glass is not obvious, and the flashing effect cannot be basically observed. If nitric acid is replaced with hydrochloric acid, the solubility of ammonium chloride, sodium chloride and calcium chloride is much lower than that of nitrate, and therefore, the above problems are also present.
According to a specific example of the present application, the frosting liquid may contain 60 parts by weight, 62 parts by weight, 65 parts by weight, 68 parts by weight, or 70 parts by weight of ammonium bifluoride, 25 parts by weight, 26 parts by weight, 27 parts by weight, 28 parts by weight, 29 parts by weight, or 30 parts by weight of ammonium fluorosilicate, 2 parts by weight, 3 parts by weight, 4 parts by weight, or 5 parts by weight of sodium fluorosilicate, 2 parts by weight, 3 parts by weight, 4 parts by weight, or 5 parts by weight of calcium fluorosilicate, 0.2 parts by weight, 0.3 parts by weight, 0.4 parts by weight, or 0.5 parts by weight of a crystal form control agent, 45 parts by weight, 48 parts by weight, 50 parts by weight, 52 parts by weight, or 55 parts by weight of water, and 45 parts by weight, 48 parts by weight, 50 parts by weight, 52 parts by weight, or 55 parts by weight of nitric acid.
According to examples of the present application, the crystalline form control agent includes a first control agent and a second control agent, wherein the first control agent includes polyvinylpyrrolidone (PVP) and the second control agent includes sodium dodecyl benzene sulfonate (SDS) or cetyl ammonium bromide. That is, the form control agent may be composed of polyvinylpyrrolidone and sodium dodecylbenzenesulfonate, or the form control agent may be composed of polyvinylpyrrolidone and cetylammonium bromide.
When the crystal form control agent is composed of polyvinylpyrrolidone and sodium dodecyl benzene sulfonate, in the course of reaction of frosting liquor and glass, because the polar sulfonic acid of sodium dodecyl benzene sulfonate is negatively charged and between positive and negative charges there is electrostatic attraction effect, NH in frosting liquor 4 + 、Na + 、Ga 2+ Enrichment is carried out on the surface of the SDS micelle, and fluosilicate ions in the system are saturated due to the reaction of hydrofluoric acid and glass, so that ammonium fluosilicate, sodium fluosilicate and calcium fluosilicate begin to nucleate and grow around the surface of the SDS micelle.
In the initial stage of the reaction, ammonium fluosilicate, sodium fluosilicate and calcium fluosilicate are around SDS micelle, and are induced by SDS molecules to be assembled once to form initial nano-scale crystal grains. The nanoscale crystal grains are unstable, the nanoscale crystal grains are secondarily assembled under the induction of PVP macromolecules within a certain space range to obtain multiple twin crystal micron particles, the multiple twin crystal micron particles have high growth activity, the subsequently formed nanoscale crystal grains in the system are continuously deposited or adsorbed on crystal faces of the multiple twin crystal micron particles, and Ostwald ripening growth is continuously carried out to form pyramid-shaped particles. The shapes of the formed particles are controlled by PVP and SDS, the formed pyramid-shaped particles are adhered to the glass, a certain protection effect is achieved on the glass, etching of the glass by the pyramid-shaped particles adhering part by the frosting liquid is reduced, the frosting liquid etches the glass along the outline of the pyramid-shaped particles, sharp protrusions similar to the pyramid-shaped particles in shape are formed on the surface of the glass, and the glass achieves a crystal-like flashing effect.
When the crystal form control agent is composed of polyvinylpyrrolidone and cetyl ammonium bromide, the control principle of the crystal form control agent on ammonium fluorosilicate, sodium fluorosilicate, calcium fluorosilicate is similar to that of the crystal form control agent composed of polyvinylpyrrolidone and sodium dodecylbenzenesulfonate, except that the crystal form control agent adsorbs SiF by positively charged groups in cetyl ammonium bromide 6 2- The specific control process is not described here.
It should be noted that "Ostwald ripening" refers to a growth mechanism in which the average size of particles increases because smaller particles dissolve and larger particles continue to grow, since the particle size of the precipitated phase is not the same in the later stage of precipitation of the supersaturated solid solution.
According to the example of the application, the pyramid-shaped particles formed may be hexahedral particles, and the pointed protrusions formed correspondingly on the surface of the glass may be hexahedral protrusions, so that the glass obtains a sparkling effect.
According to the examples of the present application, in the frosting liquid, the crystal form control agent is 0.2 to 0.5 parts by weight. The inventors found that if the mass content of the crystal form controlling agent is too small (e.g., less than 0.2 parts by weight), the content of the crystal form controlling agent is too low, SDS or cetyl ammonium bromide in the crystal form controlling agent cannot be formed into a micelle state, so that positive ions or negative ions in the frosting liquid cannot be adsorbed, ammonium fluorosilicate, sodium fluorosilicate, calcium fluorosilicate cannot be induced to form pyramid-shaped particles, and further the glass cannot obtain a flashing effect. If the mass content of the crystal form control agent is too large (for example, more than 0.5 weight part), the sizes of the formed pyramid-shaped particles are different, and then the sizes of the pointed protrusions on the surface of the glass are also uneven, so that the flashing effect is uneven, and the appearance effect is influenced. According to the method, the content of the crystal form control agent in the frosting liquid is optimized, so that a better flashing effect can be obtained.
According to examples of the present application, the mass ratio of the first control agent and the second control agent in the crystalline form control agent may be (2:3) to (3:2), such as 2:3, 4:5, 1:1, 6:5, 3:2, preferably 1:1. The inventors found that if the content of the first controlling agent is too small, the grains are more difficult to be drawn together, the particle growth speed is slower, the particle size is reduced, and the noticeable degree of the sparkling effect is lowered. If the content of the first control agent is too large, the particle size may be uneven, and uniformity of the sparkling effect and beauty may be lowered. According to the method, the mass ratio of the first control agent to the second control agent is optimized, so that obvious and uniform flashing effect can be obtained, and the attractiveness of the appearance effect of glass is improved.
According to examples of the present application, the mass ratio of the first component and the second component may be (8:9) to (9:8), such as 8:9, 9:10, 1:1, 9:8, preferably 1:1. The inventors found that if the content of the second component is too large, the concentration of ions in the whole system decreases, which affects the uniformity of etching. If the content of the first component is too much, fluorine ions in the system are too much, sodium ions released in the reaction process of hydrofluoric acid and glass are increased, the nucleation speed of crystal grains is increased, the formed nanoscale crystal nucleus is more, and the growth of particles is not facilitated, so that the obvious degree of the flashing effect is reduced. According to the method, the mass ratio of the first component to the second component is optimized, so that the obvious degree and uniformity of the flashing effect can be further improved, and the attractiveness of the appearance effect of the glass is further improved.
In summary, the crystal form control agent is added into the frosting liquid, positive ions or negative ions can be adsorbed by the crystal form control agent in the reaction process of the frosting liquid and the glass, crystal forms of ammonium fluosilicate, sodium fluosilicate and calcium fluosilicate are controlled to form pyramid-shaped particles, the pyramid-shaped particles are attached to the glass, the glass is protected, the frosting liquid etches the glass along the outline of the pyramid-shaped particles, sharp protrusions similar to the pyramid-shaped particles in shape are formed on the surface of the glass, and finally the glass is required to be cleaned to wash out the pyramid-shaped particles on the surface of the glass, so that the frosted glass is obtained, and the glass is enabled to obtain a flashing effect.
In another aspect of the present application, a method of preparing the frosting liquid described above is presented. According to an example of the present application, referring to fig. 1, the method comprises:
s100: preparation of the first and second Components
In this step, a first component and a second component are prepared. According to the examples of the present application, 60 to 70 parts by weight of ammonium bifluoride, 25 to 30 parts by weight of ammonium fluorosilicate, 2 to 5 parts by weight of sodium fluorosilicate, 2 to 5 parts by weight of calcium fluorosilicate and 0.2 to 0.5 part by weight of a crystal form controlling agent are weighed respectively, and then the above components are put into a powder stirrer to be stirred uniformly to obtain a first component. Because the first component is solid, each component in the first component is put into a powder stirrer to be stirred, so that the uniformly mixed first component is conveniently obtained. The specific composition of the crystal form control agent and the mass ratio of the plurality of crystal form control agents are described in detail above, and will not be described in detail herein.
According to the examples of the present application, 45 to 55 parts by weight of water and 45 to 55 parts by weight of nitric acid are weighed, respectively, and then the water and the nitric acid are put into a common stirrer to be stirred, and uniformly stirred to obtain a second component. The order of preparation of the first component and the second component is not particularly limited, and the first component may be prepared first, and then the second component may be prepared, or the second component may be prepared first, and then the first component may be prepared.
S200: mixing the first component and the second component, aging, and filtering to obtain frosting liquid
In this step, the first component and the second component are mixed, aged, and filtered to obtain a frosting liquid. According to the example of the application, the first component and the second component are added into a reaction kettle according to a preset mass ratio, stirred, reacted and cured, and then filtered through a gauze to obtain the frosting liquid. Specifically, the curing temperature can be 25-30 ℃ (i.e. curing is performed at normal temperature), and the curing time can be 36-48h. Thus, each component in the frosting liquid can be fully dissolved and mixed to obtain a balanced system. The mesh used in the filtration may be 60-80 mesh. Therefore, impurities with larger size (such as dust, impurities in raw materials and the like) can be filtered, and the problems that the impurities adhere to glass, scratch or uneven etching is caused to the glass and the like are avoided.
The mass ratio of the first component to the second component has been described in detail above, and will not be described in detail here.
In another aspect of the present application, a method of processing frosted glass is presented. According to an example of the present application, referring to fig. 2, the method comprises:
s300: swinging etching is carried out on the preset area of the glass substrate by using the frosting liquid to form a frosting part
In this step, a predetermined region of the glass substrate is subjected to swing etching using the aforementioned frosting liquid to form a frosted portion, and the frosted portion is formed into a pointed projection. According to the examples of the present application, a glass substrate is placed in a frosting liquid and oscillated to effect etching of the glass substrate. The swing stroke of the swing etching can be 25-40cm, such as 25cm, 30cm, 35cm, 40cm, and the swing speed of the swing etching can be 18-21m/min, such as 18m/min, 19m/min, 20m/min, 21m/min. The inventors found that if the swing stroke is too short (e.g., less than 25 cm), the etching uniformity is affected by the limited amount of the masking liquid in contact with the glass substrate. If the swing stroke is too long (e.g., greater than 40 cm), more frosting liquid is required, and a larger reaction tank (for containing the frosting liquid) is required, increasing the cost. If the swing etching is too slow (e.g. less than 18 m/min), the probability of contact between the grains and the glass substrate is reduced, i.e. the grains formed later are continuously deposited on the grains formed earlier instead of contacting the glass substrate, so that the uniformity of particle distribution is affected, and the grains are continuously deposited at the same position, so that the risk of overetching is increased, the uniformity of the particle size is affected, and the flashing effect is further affected. If the swing etching is performed at too high a swing speed (e.g., greater than 21 m/min), particle growth is not favored, and the noticeable degree of the sparkling effect is reduced. According to the method, the swing stroke and the swing speed are optimized, the obvious degree and uniformity of the flashing effect can be further improved, and the attractiveness of the appearance effect of the glass is further improved.
The "swing stroke" is a single pass of the swing.
According to examples of the present application, the temperature of the swing etching may be 8-12 ℃, such as 8 ℃, 9 ℃, 10 ℃, 11 ℃, 12 ℃. The inventors have found that if the temperature is too low (e.g. less than 8 ℃), the nucleation and growth of the grains is slowed down and the resulting particle size is reduced, thereby reducing the noticeable degree of sparkling effect. If the temperature is too high (e.g., greater than 12 ℃), the solubility of ammonium fluorosilicate, sodium fluorosilicate, calcium fluorosilicate, etc. increases, and the particle size decreases. According to the method, the temperature of swing etching is optimized, the obvious degree of the flashing effect can be further improved, and the attractiveness of the appearance effect of glass is further improved.
According to examples of the present application, the time of the swing etching may be 65-90s, such as 65s, 70s, 75s, 80s, 85s, 90s. Therefore, the frosting liquid can fully react with the glass, and sharp bulges which are uniformly distributed and uniform in size are formed on the surface of the glass, so that the glass has a uniform and attractive flashing effect.
According to the example of the application, in the process of reacting the frosting liquid with the glass, the formed pyramid-shaped particles can be hexahedral particles, and the pointed protrusions correspondingly formed on the surface of the glass are hexahedral protrusions, so that the glass obtains a flashing effect.
In addition, the inventor finds that if standing, soaking and etching are adopted, formed particles are unevenly distributed on the surface of the glass substrate, and the particles are continuously grown in a local area of the glass substrate, so that the particle size is oversized, the particle size is uneven, the obtained flashing effect is uneven, the appearance attractiveness of the glass is influenced, the surface roughness of the glass substrate is overlarge, and the hand feeling is influenced.
According to an example of the present application, prior to the swing etching of the glass substrate, the method may further comprise: the surface of the glass substrate is pretreated, for example, 5% hydrofluoric acid is used for pickling for 25 seconds and then rinsing is carried out, so that a clean surface is obtained, the dyne value of the surface of the glass substrate is increased, and adhesion of subsequently formed particles on the surface of the glass substrate is facilitated.
According to the example of the present application, the portion of the glass substrate other than the predetermined area is covered with the etching resist ink, whereby the etching resist ink can be prevented from reacting with the portion of the glass substrate other than the predetermined area during etching, and thus the purpose of selective etching can be achieved. The specific composition of the etching resist ink is not particularly limited as long as the portion of the glass substrate covered with the ink can be protected from etching by the frosting liquid, and may be selected by those skilled in the art according to the specific circumstances.
S400: cleaning the glass substrate subjected to swing etching to obtain frosted glass
In this step, the glass substrate subjected to swing etching is cleaned to obtain frosted glass. According to the examples of the present application, by washing the glass substrate, particles adhering to the surface of the glass are washed off, thereby obtaining frosted glass having a sparkling effect.
As will be appreciated by those skilled in the art, the method further includes removing the etch-resistant ink from the glass substrate to obtain a frosted glass.
In another aspect of the present application, a frosted glass is presented. According to the examples of the present application, the frosted glass is formed by processing using the method described above. Therefore, the frosted glass has better flashing effect.
According to examples of the present application, the roughness of the frosted portion of the frosted glass is 1.4 to 2.6 μm. Therefore, the frosted glass has proper roughness, the flashing effect of the frosted glass can be further improved, and the frosted glass has better hand feeling. The method for detecting roughness is not particularly limited, and for example, detection can be performed using a MarSurf M400 mar coarser meter.
According to the examples of the present application, the haze of the frosted glass is 70 to 90%. Therefore, the frosted glass has a flashing effect and a better frosting effect. The method for detecting haze is not particularly limited, and for example, detection can be performed using a color haze meter YDCS-720.
According to the example of the application, the battery rear cover can be formed by using the frosted glass, so that the battery rear cover can show a flashing effect, the appearance expressive force is obviously improved, and the diversified requirements of users on electronic equipment are met.
According to an example of the present application, an electronic device may include the battery back cover, the display screen, and the motherboard described above, the battery back cover defining an accommodation space, the display screen and the motherboard being disposed in the accommodation space, and the display screen and the motherboard being electrically connected. Therefore, the electronic equipment has the flashing appearance, and can meet the diversified demands of users on the electronic equipment.
The following description of the embodiments of the present application is made by way of specific examples, which are provided to illustrate the present application and should not be construed to limit the scope of the present application. The examples are not to be construed as limiting the specific techniques or conditions described in the literature in this field or as per the specifications of the product. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
Example 1
Frosting liquid:
a first component: 65 parts by weight of ammonium bifluoride, 30 parts by weight of ammonium fluorosilicate, 2.5 parts by weight of sodium fluorosilicate, 2 parts by weight of calcium fluorosilicate, 0.25 part by weight of PVP and 0.25 part by weight of SDS.
And a second component: 50 parts by weight of pure water and 50 parts by weight of nitric acid.
The preparation method of the frosting liquid comprises the following steps:
(1) The raw materials are prepared according to the weight parts.
(2) After the first component is mixed, the mixture is stirred uniformly by a medicine powder stirrer, and after the second component is mixed, the mixture is stirred uniformly by a common stirrer.
(3) The first component and the second component are added into a reaction stirring kettle according to the mass ratio of 1:1 for normal temperature stirring reaction curing for 40 hours, and then 80 mesh gauze is used for filtering to obtain the frosting liquid.
The processing method of the frosted glass comprises the following steps:
(1) The GG5 glass was pickled with 5% HF for 25 seconds and then rinsed.
(2) And (3) placing the rinsed glass into cured frosting liquid for swing etching, wherein the stroke of swing etching is 40cm, the speed of swing etching is 20m/min, the temperature of swing etching is 10 ℃, and the time of swing etching is 90s.
(3) And (5) carrying out rinsing with pure water twice after frosting to obtain the frosted glass.
By observing the frosting section of the frosted glass of the present example with an electron scanning microscope, hexahedral projections can be observed with uniform distribution of the hexahedral projections (refer to fig. 3). By visually observing the frosted glass, a uniform and attractive sparkling effect can be observed.
The roughness of the frosting part is 1.4-2.6 mu m, and the haze is 70-90%.
Example 2
Frosting liquid:
a first component: 70 parts by weight of ammonium bifluoride, 25 parts by weight of ammonium fluosilicate, 2.6 parts by weight of sodium fluosilicate, 2 parts by weight of calcium fluosilicate, 0.2 part by weight of PVP and 0.2 part by weight of SDS.
And a second component: 50 parts by weight of pure water and 50 parts by weight of nitric acid.
The preparation method of the frosting liquid and the processing method of the frosted glass of this example are the same as those of example 1.
By observing the frosting part of the frosting glass of the present example with an electron scanning microscope, hexahedral projections can be observed, and the hexahedral projections are uniformly distributed. By visually observing the frosted glass, a uniform and attractive sparkling effect can be observed.
Example 3
Frosting liquid:
a first component: 63 parts by weight of ammonium bifluoride, 28 parts by weight of ammonium fluorosilicate, 4 parts by weight of sodium fluorosilicate, 4.7 parts by weight of calcium fluorosilicate, 0.15 part by weight of PVP and 0.15 part by weight of SDS.
And a second component: 50 parts by weight of pure water and 50 parts by weight of nitric acid.
The preparation method of the frosting liquid and the processing method of the frosted glass of this example are the same as those of example 1.
By observing the frosting part of the frosting glass of the present example with an electron scanning microscope, hexahedral projections can be observed, and the hexahedral projections are uniformly distributed. By visually observing the frosted glass, a uniform and attractive sparkling effect can be observed.
Example 4
Frosting liquid:
a first component: 65 parts by weight of ammonium bifluoride, 30 parts by weight of ammonium fluorosilicate, 2.6 parts by weight of sodium fluorosilicate, 2 parts by weight of calcium fluorosilicate, 0.15 part by weight of PVP and 0.25 part by weight of SDS.
And a second component: 50 parts by weight of pure water and 50 parts by weight of nitric acid.
The preparation method of the frosting liquid and the processing method of the frosted glass of this example are the same as those of example 1.
By observing the frosting part of the frosting glass of the present example with an electron scanning microscope, hexahedral projections are observed, which are uniformly distributed, but the size of the hexahedral projections is slightly smaller than that of example 1. By visual inspection of the frosted glass, a uniform sparkling effect was observed, but the sparkling was slightly less pronounced than in example 1.
Example 5
Frosting liquid:
a first component: 68 parts by weight of ammonium bifluoride, 30 parts by weight of ammonium fluorosilicate, 4.5 parts by weight of sodium fluorosilicate, 5 parts by weight of calcium fluorosilicate, 0.25 part by weight of PVP and 0.25 part by weight of SDS.
And a second component: 45 parts by weight of pure water and 45 parts by weight of nitric acid.
The mass ratio of the first component to the second component was 1.2.
The preparation method of the frosting liquid and the processing method of the frosted glass of this example are the same as those of example 1.
By observing the frosting part of the frosting glass of the present example with an electron scanning microscope, hexahedral projections are observed, which are uniformly distributed, but the size of the hexahedral projections is slightly smaller than that of example 1. By visual inspection of the frosted glass, a uniform sparkling effect was observed, but the sparkling was slightly less pronounced than in example 1.
Comparative example 1
Frosting liquid:
a first component: 65 parts by weight of ammonium bifluoride, 30 parts by weight of ammonium fluorosilicate, 2.5 parts by weight of sodium fluorosilicate and 2.5 parts by weight of calcium fluorosilicate.
And a second component: 50 parts by weight of pure water and 50 parts by weight of nitric acid.
The preparation method of the frosting liquid and the processing method of the frosted glass of the comparative example are the same as those of example 1.
The frosting part of the frosting glass of the comparative example was observed by using an electron scanning microscope, and the glass surface had no pointed protrusions and had a sand leakage phenomenon. No sparkling effect was observed with the naked eye.
The roughness of the frosting part is 2.2-3.1 mu m, the haze is 70-90%, and the roughness is obviously increased.
Comparative example 2
Frosting liquid:
a first component: 65 parts by weight of ammonium bifluoride, 30 parts by weight of ammonium fluorosilicate, 2.4 parts by weight of sodium fluorosilicate, 2 parts by weight of calcium fluorosilicate, 0.3 part by weight of PVP and 0.3 part by weight of SDS.
And a second component: 50 parts by weight of pure water and 50 parts by weight of nitric acid.
The preparation method of the frosting liquid and the processing method of the frosted glass of the comparative example are the same as those of example 1.
The frosting part of the frosting glass of the comparative example was observed by an electron scanning microscope, and the glass surface had pointed projections, but the size of the pointed projections was not uniform. The flashing effect can be observed by naked eyes, but the flashing is messy and uneven, and the fine and beautiful effect can not be achieved.
In the description of the present specification, the descriptions of the terms "one example," "another example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the example is included in at least one example of the present application. In this specification, schematic representations of the above terms are not necessarily for the same example. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more examples. Furthermore, the different examples described in this specification and the features of the different examples may be combined and combined by those skilled in the art without contradiction. In addition, it should be noted that, in the present specification, the terms "first" and "second" are used for descriptive purposes only, and are not to be construed as indicating or implying relative importance or implying an indication of the number of technical features indicated for the purpose of distinguishing, in a visual sense, between the two components constituting the masking liquid.
While examples of the present application have been shown and described above, it will be understood that the above examples are illustrative and not to be construed as limiting the present application, and that variations, modifications, alternatives, and variations may be made to the above examples by one of ordinary skill in the art within the scope of the present application.
Claims (13)
1. A frosting liquid, characterized by comprising:
a first component and a second component, wherein the first component comprises 60-70 parts by weight of ammonium bifluoride, 25-30 parts by weight of ammonium fluosilicate, 2-5 parts by weight of sodium fluosilicate, 2-5 parts by weight of calcium fluosilicate and 0.2-0.5 part by weight of crystal form control agent, the second component comprises 45-55 parts by weight of water and 45-55 parts by weight of nitric acid,
the crystal form control agent consists of a first control agent and a second control agent, wherein the first control agent is polyvinylpyrrolidone, the second control agent is sodium dodecyl benzene sulfonate or cetyl ammonium bromide,
after the frosting liquid reacts with the glass, the surface of the glass forms pointed protrusions.
2. The frosting liquid of claim 1, wherein the mass ratio of the first control agent to the second control agent is 2:3-3:2.
3. The frosting liquid of claim 1, wherein the mass ratio of the first component to the second component is 8:9-9:8.
4. A method of preparing the frosting liquid of any one of claims 1 to 3, comprising:
mixing and stirring 60-70 parts by weight of ammonium bifluoride, 25-30 parts by weight of ammonium fluosilicate, 2-5 parts by weight of sodium fluosilicate, 2-5 parts by weight of calcium fluosilicate and 0.2-0.5 part by weight of a crystal form control agent to obtain the first component;
mixing 45-55 parts by weight of water and 45-55 parts by weight of nitric acid, and stirring to obtain the second component;
and mixing, curing and filtering the first component and the second component to obtain the frosting liquid.
5. The method of claim 4, wherein the curing is at a temperature of 25-30 ℃ and the curing time is 36-48 hours.
6. The method of claim 4, wherein the mesh number of the filtration is 60-80 mesh.
7. A method for processing frosted glass is characterized by comprising the following steps:
performing swing etching on a predetermined region of a glass substrate by using the frosting liquid according to any one of claims 1 to 3 to form a frosting part, wherein the frosting part is provided with pointed protrusions;
and cleaning the glass substrate subjected to swing etching to obtain the frosted glass.
8. The method according to claim 7, wherein the swing stroke of the swing etching is 25-40cm and the swing speed of the swing etching is 18-21m/min.
9. The method of claim 7, wherein the swing etching is performed at a temperature of 8-12 ℃ for a time of 65-90s.
10. The method of claim 7, wherein the pointed projections are hexahedral projections.
11. A frosted glass formed by the method of any one of claims 7-10.
12. The frosted glass according to claim 11, wherein the roughness of the frosted portion is 1.4 to 2.6 μm.
13. The frosted glass of claim 11, wherein the frosted portion has a haze of 70-90%.
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| CN114349360A (en) * | 2022-02-23 | 2022-04-15 | Oppo广东移动通信有限公司 | Method for preparing glass substrate, shell assembly and electronic device |
| CN115124251A (en) * | 2022-07-20 | 2022-09-30 | Oppo广东移动通信有限公司 | Frosting liquid and preparation method thereof, frosted glass and preparation method thereof, and electronic equipment |
| CN115108728A (en) * | 2022-07-20 | 2022-09-27 | Oppo广东移动通信有限公司 | Frosting liquid and preparation method thereof, frosted glass and preparation method thereof, and electronic equipment |
| CN115321827B (en) * | 2022-08-31 | 2023-07-28 | 郑州恒昊光学科技有限公司 | Etching solution with diamond sand blazing effect and manufacturing process of mobile phone rear shell glass |
| CN115594408B (en) * | 2022-09-27 | 2024-04-19 | 广州亦盛环保科技有限公司 | Preparation method of high-flash sand liquid medicine and flash sand effect glass |
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| AU4314600A (en) * | 1999-04-27 | 2000-11-10 | Hiroshi Miwa | Glass etching composition and method for frosting using the same |
| FR2879211A1 (en) * | 2005-04-12 | 2006-06-16 | Seppic Sa | Process of obscuring glass, comprises immersing glass surface object in composition comprising viscosifying agent, water-soluble bifluoride compound, insoluble filler in water, surface-active agent, water-soluble salt and water |
| CN101913772A (en) * | 2010-09-02 | 2010-12-15 | 上海多林化工科技有限公司 | One-step method for manufacturing low-reflection glass |
| CN105060727B (en) * | 2015-07-31 | 2018-03-02 | 安徽和润特种玻璃有限公司 | A kind of high transmittance anti-dazzle glas etching solution and preparation method thereof |
| CN107814491A (en) * | 2017-12-14 | 2018-03-20 | 天津美泰真空技术有限公司 | A kind of flat glass substrate etching solution |
| CN108585530A (en) * | 2018-04-20 | 2018-09-28 | 广东红日星实业有限公司 | A kind of glass etching liquid and preparation method thereof |
| CN111333341B (en) * | 2018-12-19 | 2022-07-12 | Oppo广东移动通信有限公司 | Battery cover, mobile terminal and manufacturing method of battery cover |
| CN110467354B (en) * | 2019-08-27 | 2021-10-01 | Oppo广东移动通信有限公司 | Frosted glass, preparation method thereof, glass rear cover and electronic equipment |
| CN111362584B (en) * | 2020-03-21 | 2022-02-18 | 郑州恒昊光学科技有限公司 | High borosilicate glass etching solution and preparation method and application thereof |
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