CN110052898A - A kind of preparation method of ultra-thin glass - Google Patents
A kind of preparation method of ultra-thin glass Download PDFInfo
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- CN110052898A CN110052898A CN201910292129.7A CN201910292129A CN110052898A CN 110052898 A CN110052898 A CN 110052898A CN 201910292129 A CN201910292129 A CN 201910292129A CN 110052898 A CN110052898 A CN 110052898A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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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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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Surface Treatment Of Glass (AREA)
Abstract
The present invention relates to glass technology fields, and in particular to a kind of preparation method of ultra-thin glass, including following (1) take glass, by glass immersion in being thinned in etchant, carry out first time reduction processing to glass；(2) glass Jing Guo reduction processing is subjected to Two sides milling and polishing；(3) it, on carrier glass, will be then soaked in thinned etchant by the glass gluing of Two sides milling and polishing, second of reduction processing carried out to glass, ultra-thin glass is made.The preparation method of ultra-thin glass of the present invention, can be prepared the ultra-thin glass that thickness is thin, translucency is strong, softness is good, touch-sensitive is high, which is simple and efficient, convenient operation and control, stable product quality is conducive to industrialized production, can be used for preparing with a thickness of the ultra-thin glass of 0.03mm specification.
Description
Technical field
The present invention relates to glass technology fields, and in particular to a kind of preparation method of ultra-thin glass.
Background technique
With the development of society and the progress of science and technology, glass is widely applied obtained in the electronics industry, such as can be used as
Optical glass film or tempered glass, requirement of the people for glass especially ultra-thin glass are also increasingly increased.On existing market
Ultra-thin glass film thickness is usually 0.10-0.33mm, such as with a thickness of 0.33,0.22,0.15 or 0.10mm.However, above-mentioned
Its toughness of the ultra-thin glass of thickness and flexibility are lower, cause its degree of bending smaller, can not fully wrapped around edge be song
The edges such as face mobile phone or other electronic products are the screen of curved surface, and flexibility, translucency and touch-sensitive need further
It improves.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide a kind of ultra-thin glass
Preparation method, can be prepared the ultra-thin glass that thickness is thin, translucency is strong, softness is good, touch-sensitive is high, and the preparation method is simple
Efficiently, convenient operation and control, stable product quality are conducive to industrialized production, can be used for preparing with a thickness of the super of 0.03mm specification
Thin glass.
The purpose of the invention is achieved by the following technical solution: a kind of preparation method of ultra-thin glass, comprising the following steps:
(1), glass is taken, by glass immersion in being thinned in etchant, first time reduction processing is carried out to glass；
(2), the glass Jing Guo reduction processing is subjected to Two sides milling and polishing；
(3), it, on carrier glass, will be then soaked in thinned etchant, to glass by the glass gluing of Two sides milling and polishing
Glass carries out second of reduction processing, and ultra-thin glass is made.
Further, the area of section phase of the area of section of the carrier glass and the glass by Two sides milling and polishing
Together, thickness is thicker than the thickness of the glass by Two sides milling and polishing.By by Two sides milling and polishing glass and with the glass
The identical carrier glass fitting of size, second of reduction processing are designed as thinning single surface, and when being thinned for second, carrier glass can
One face of the target glass by Two sides milling and polishing is effectively protected, it is convenient to operate, and controls more accurate.
Further, in the step (1) and step (3), the thinned etchant includes the raw material of following parts by weight: hydrogen
0.8-1.2 parts of fluoric acid, 4-6 parts of ammonium fluoride, 90-98 parts of water.When attenuation etching liquid of the invention uses there is good etching to imitate
Fruit, uniformity is good, and etch-rate is high, convenient for cleaning.
Further, in the step (1), first time reduction processing is carried out to glass, thickness of glass is reduced into 0.14-
0.16mm。
Further, in the step (3), second of reduction processing is carried out to glass, by being precisely controlled the time, by glass
Glass thickness reduces to 0.028-0.032mm.Further, second of reduction processing is carried out to glass, thickness of glass is reduced to
The glass with a thickness of 0.03mm is made in 0.03mm.
Preparation method of the invention can be used for preparing with a thickness of the ultra-thin glass of 0.03mm specification, obtained ultra-thin glass
It can be used for optical touch screen, flexibility is good, high light transmittance, with excellent sense of touch sensitivity.
The glass of the prior art needs glass will be adsorbed in polishing pad by pressure in polishing, and this polishing pad
And it is nisi smooth, glass can be made to be generated certain deformation by external force, the prolonged glass under stress and deformation state
It can come to harm to a certain extent, generate certain micro-crack；And the process polished, by polishing pad plus polishing fluid to glass
Glass does not stop to be ground, and polishing pad and polishing powder liquid apply external force to glass again, when two external force act on glass simultaneously
On glass, glass receives damage, produces micro-crack, and micro-crack is presently considered to be the important original impacted to strength of glass
One of because.
The present invention is by being polished directly the surface of glass, then after carrying out first time reduction processing to glass
Glass by polishing is subjected to second of reduction processing to glass, second of reduction processing has repaired glass during the polishing process
Micro-crack, successfully repaired polishing process to the damage of glass and caused by micro-crack, substantially increase the intensity of glass,
Improve production efficiency and product yield；It can be prepared that thickness is thin, translucency is strong, soft good, touch-sensitive through the invention
High ultra-thin glass.
Further, in the step (2), the grinding and polishing concrete operations include the following steps:
A1, polishing: glass is placed in polishing machine, is polished using polishing fluid；
A2, ultrasonic cleaning: the glass by polishing is subjected to ultrasonic cleaning；
A3, drying: the glass that ultrasonic cleaning is crossed is dried.
Further, in the step A1, polishing fluid is made of the raw material of following parts by weight: cerium oxide particles 24-32
Part, 15-20 parts of polymaleic anhydride, 10-14 parts of stabilizer, 5-8 parts of citric acid, 2-4 parts of polyethylene glycol, 2-5 parts of triethanolamine, water
0.5-1.5 parts of soluble inorganic salt, 55-70 parts of water.Further, the partial size of the cerium oxide particles is 100-150nm.
Further, the water-soluble inorganic salt is at least one of cesium salt, molysite and zinc salt, by adding in system
Enter water-soluble inorganic salt, the frictional force between cerium oxide particles and glass surface can be increased, effectively improves the polishing speed of glass
Rate reduces glass surface defects.
The present invention by being added citric acid in polishing fluid, assign good rust-preventing characteristic when polishing fluid uses, low bubble property and
Stability can mitigate polishing fluid to the extent of corrosion of equipment, enhance operational safety, reduce heavy metal in process of production, no
The pollution of heavy metal is easily caused, and makes the glass easy cleaning after polishing.The pH of polishing fluid is adjusted in triethanolamine, reduces polishing
Corrosion of the liquid to equipment, enhances its operational safety；Especially triethanolamine, citric acid and polyethylene glycol match, into one
Step improves the anti-embroidery cleaning function of polishing fluid, the glass easy cleaning after making polishing, good with remaining each materials compatibility, and has and help
Mill effect, effectively improves the polishing speed of glass, improves product yield.
Polishing fluid of the invention improves ceria by the way that cerium oxide particles are added, and using citric acid and Polyethylenimine
The characteristic of particle surface, good fit with the realization of remaining raw material, each mutual help of raw material, compatibility is good, has polishing fluid outstanding
The advantages that buoyancy is good, even particle distribution, high polishing efficiency, and polished surface easy cleaning, polishing fluid corrosion-free to polissoir
Without deposition on polishing machine and polishing pad, there is good environment friendly, can be applied to the glass industry of high-precision requirement
Polishing improves product yield.
Further, the stabilizer is xanthan gum, polyvinylpyrrolidone, hydroxyethyl cellulose, polyvinylsulfonic acid
At least one of ester, polymethacrylates and polycarboxylic acids.Guarantee that cerium oxide particles are being thrown by using above stabilizer
Stable suspended substance is formed in light liquid system, improves the polishing effect of polishing fluid.
Further, in the step A1, polishing revolving speed is 40-100r/min, polishing time 10-20min.
Further, in the step A2, ultrasonic cleaning water temperature is 25-45 DEG C, scavenging period 10-20min.
The present invention passes through the selection to polishing fluid, polishing pad and the choosing for polishing revolving speed, polishing time and pressure and other parameters
It selects and glass is polished directly, few surface defects of glass when polishing can improve generating in using existing polishing process
Scratch problem, and polishing speed and uniformity are good, product yield is high.
Beneficial effects of the present invention: the present invention will be by after carrying out first time reduction processing to glass, to the surface of glass
It is polished directly, the glass by polishing is then subjected to second of reduction processing, second of reduction processing reparation to glass
The micro-crack of glass during the polishing process, successfully repaired polishing process to the damage of glass and caused by micro-crack, greatly
The intensity of glass is improved greatly, and improving production efficiency and product yield has；
The ultra-thin glass that thickness is thin, translucency is strong, softness is good, touch-sensitive is high, glass obtained can be prepared through the invention
The more convenient bending of glass and curling；When being applied on optical equipment, light losing is less, moreover it is possible to effective blocks dust；It is applied to finger
When line identification aspect, ultra-thin thickness can be more advantageous to sensing and sensitivity；It is applied to optical screen production or tempered glass
When film produces, flexibility, high light transmittance, sense of touch sensitivity plays a role simultaneously, is greatly improved the performance of electronic product；
Preparation method of the invention is simple and efficient, convenient operation and control, stable product quality, is conducive to industrialized production, be can be used for
Prepare the ultra-thin glass with a thickness of 0.03mm specification.
Detailed description of the invention
Fig. 1 is the bending figure for the ultra-thin glass with a thickness of 0.03mm that the present invention is made；
Fig. 2 is the bending figure of the glass with a thickness of 0.33mm.
Specific embodiment
For the ease of the understanding of those skilled in the art, below with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
A kind of preparation method of ultra-thin glass, comprising the following steps:
(1), glass is taken, by glass immersion in being thinned in etchant, first time reduction processing is carried out to glass；
(2), the glass Jing Guo reduction processing is subjected to Two sides milling and polishing；
(3), it, on carrier glass, will be then soaked in thinned etchant, to glass by the glass gluing of Two sides milling and polishing
Glass carries out second of reduction processing, and ultra-thin glass is made.
Further, the area of section phase of the area of section of the carrier glass and the glass by Two sides milling and polishing
Together, thickness is thicker than the thickness of the glass by Two sides milling and polishing.
Further, in the step (1) and step (3), the thinned etchant includes the raw material of following parts by weight: hydrogen
1 part of fluoric acid, 5 parts of ammonium fluoride, 94 parts of water.
Further, in the step (1), first time reduction processing is carried out to glass, thickness of glass is reduced into 0.15mm.
Further, in the step (3), second of reduction processing is carried out to glass, thickness of glass is reduced into 0.03mm,
The glass with a thickness of 0.03mm is made.
Further, in the step (2), the grinding and polishing concrete operations include the following steps:
A1, polishing: glass is placed in polishing machine, is polished using polishing fluid；
A2, ultrasonic cleaning: the glass by polishing is subjected to ultrasonic cleaning；
A3, drying: the glass that ultrasonic cleaning is crossed is dried.
Further, in the step A1, polishing fluid is made of the raw material of following parts by weight: 28 parts of cerium oxide particles,
18 parts of polymaleic anhydride, 12 parts of stabilizer, 6 parts of citric acid, 3 parts of polyethylene glycol, 3 parts of triethanolamine, 1 part of water-soluble inorganic salt,
60 parts of water.Further, the partial size of the cerium oxide particles is 100-150nm.The water-soluble inorganic salt is cesium chloride.
Further, in the step A1, polishing revolving speed is 70r/min, polishing time 15min.
Further, in the step A2, ultrasonic cleaning water temperature is 30 DEG C, scavenging period 15min.
Embodiment 2
In the present embodiment, a kind of preparation method of ultra-thin glass, comprising the following steps:
(1), glass is taken, by glass immersion in being thinned in etchant, first time reduction processing is carried out to glass；
(2), the glass Jing Guo reduction processing is subjected to Two sides milling and polishing；
(3), it, on carrier glass, will be then soaked in thinned etchant, to glass by the glass gluing of Two sides milling and polishing
Glass carries out second of reduction processing, and ultra-thin glass is made.
Further, the area of section phase of the area of section of the carrier glass and the glass by Two sides milling and polishing
Together, thickness is thicker than the thickness of the glass by Two sides milling and polishing.
Further, in the step (1) and step (3), the thinned etchant includes the raw material of following parts by weight: hydrogen
0.8 part of fluoric acid, 4 parts of ammonium fluoride, 90 parts of water.
Further, in the step (1), first time reduction processing is carried out to glass, thickness of glass is reduced into 0.14mm.
Further, in the step (3), second of reduction processing is carried out to glass, thickness of glass is reduced into 0.028-
The glass with a thickness of 0.028-0.032mm is prepared in 0.032mm.
Further, in the step (2), the grinding and polishing concrete operations include the following steps:
A1, polishing: glass is placed in polishing machine, is polished using polishing fluid；
A2, ultrasonic cleaning: the glass by polishing is subjected to ultrasonic cleaning；
A3, drying: the glass that ultrasonic cleaning is crossed is dried.
Further, in the step A1, polishing fluid is made of the raw material of following parts by weight: 24 parts of cerium oxide particles,
15 parts of polymaleic anhydride, 10 parts of stabilizer, 5 parts of citric acid, 2 parts of polyethylene glycol, 2 parts of triethanolamine, water-soluble inorganic salt 0.5
Part, 55 parts of water.Further, the partial size of the cerium oxide particles is 100nm.The water-soluble inorganic salt is by cesium chloride and chlorine
Change zinc to form according to mass ratio 1:1.
Further, in the step A1, polishing revolving speed is 40r/min, polishing time 20min.
Further, in the step A2, ultrasonic cleaning water temperature is 25 DEG C, scavenging period 10min.
Embodiment 3
In the present embodiment, in the step (2), the thinned etchant includes the raw material of following parts by weight: 0.12 part of hydrofluoric acid,
6 parts of ammonium fluoride, 98 parts of water.
Further, in the step (1), first time reduction processing is carried out to glass, thickness of glass is reduced into 0.16mm.
Further, in the step (3), second of reduction processing is carried out to glass, thickness of glass is reduced into 0.03mm,
The glass with a thickness of 0.03mm is prepared.
Further, in the step (2), the grinding and polishing concrete operations include the following steps:
A1, polishing: glass is placed in polishing machine, is polished using polishing fluid；
A2, ultrasonic cleaning: the glass by polishing is subjected to ultrasonic cleaning；
A3, drying: the glass that ultrasonic cleaning is crossed is dried.
Further, in the step A1, polishing fluid is made of the raw material of following parts by weight: 32 parts of cerium oxide particles,
20 parts of polymaleic anhydride, 14 parts of stabilizer, 8 parts of citric acid, 4 parts of polyethylene glycol, 5 parts of triethanolamine, water-soluble inorganic salt 1.5
Part, 70 parts of water.Further, the partial size of the cerium oxide particles is 100-150nm.The water-soluble inorganic salt is by cesium chloride
It is formed with iron chloride according to mass ratio 1:0.5.
Further, in the step A1, polishing revolving speed is 100r/min, polishing time 10min.
Further, in the step A2, ultrasonic cleaning water temperature is 25-45 DEG C, scavenging period 20min.
The other content of the present embodiment is same as Example 1, and which is not described herein again.
Embodiment 4
In the present embodiment, in the step (2), the thinned etchant includes the raw material of following parts by weight: 0.9 part of hydrofluoric acid,
4.5 parts of ammonium fluoride, 95 parts of water.There is good etch effect, uniformity is good, and etches when attenuation etching liquid of the invention uses
Rate is high, convenient for cleaning.
Further, in the step (2), the grinding and polishing concrete operations include the following steps:
A1, polishing: glass is placed in polishing machine, is polished using polishing fluid；
A2, ultrasonic cleaning: the glass by polishing is subjected to ultrasonic cleaning；
A3, drying: the glass that ultrasonic cleaning is crossed is dried.
Further, in the step A1, polishing fluid is made of the raw material of following parts by weight: 28 parts of cerium oxide particles,
16 parts of polymaleic anhydride, 13 parts of stabilizer, 7 parts of citric acid, 2.5 parts of polyethylene glycol, 4 parts of triethanolamine, water-soluble inorganic salt 1.2
Part, 65 parts of water.Further, the partial size of the cerium oxide particles is 100-150nm.The water-soluble inorganic salt is chlorination
Caesium.
Further, in the step A1, polishing revolving speed is 60r/min, polishing time 18min.
Further, in the step A2, ultrasonic cleaning water temperature is 35 DEG C, scavenging period 2min.
By taking Xiao Te glass as an example, referring to Fig. 1, length 140mm made from the embodiment of the present invention 1, with a thickness of 0.03mm's
Ultra-thin glass can roll two circles, and curling reaches 720 degree or more；And in Fig. 2, length is similarly 140mm, with a thickness of 0.33mm
Glass can only about be bent 180 degree.It is about 92-93%, this hair with a thickness of 0.33mm and with a thickness of the transmitance of 0.10 glass
The bright embodiment 1-4 ultra-thin glass transmitance obtained with a thickness of 0.03mm is 94% or more.
It can be seen from the above content that the preparation method of ultra-thin glass of the invention, it can be prepared that thickness is thin, translucency
By force, soft ultra-thin glass good, touch-sensitive is high, the preparation method are simple and efficient, convenient operation and control, stable product quality,
Conducive to industrialized production, can be used for preparing with a thickness of the ultra-thin glass of 0.03mm specification.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way,
Do not depart under the premise of present inventive concept it is any obviously replace it is within the scope of the present invention.
Claims (10)
1. a kind of preparation method of ultra-thin glass, it is characterised in that: the following steps are included:
(1), glass is taken, by glass immersion in being thinned in etchant, first time reduction processing is carried out to glass；
(2), the glass Jing Guo reduction processing is subjected to Two sides milling and polishing；
(3), it, on carrier glass, will be then soaked in thinned etchant, then by the glass gluing of Two sides milling and polishing
Second of reduction processing is carried out to glass, ultra-thin glass is made.
2. a kind of preparation method of ultra-thin glass according to claim 1, it is characterised in that: the step (1) and (3)
In, the thinned etchant includes the raw material of following parts by weight: 0.8-1.2 parts of hydrofluoric acid, 4-6 parts of ammonium fluoride, 90-98 parts of water.
3. a kind of preparation method of ultra-thin glass according to claim 1, it is characterised in that: in the step (1), to glass
Glass carries out first time reduction processing, and thickness of glass is reduced to 0.14-0.16mm.
4. a kind of preparation method of ultra-thin glass according to claim 1, it is characterised in that: in the step (3), to glass
Glass carries out second of reduction processing, and thickness of glass is reduced to 0.028-0.032mm.
5. a kind of preparation method of ultra-thin glass according to claim 1, it is characterised in that: in the step (3), to glass
Glass carries out second of reduction processing, and thickness of glass is reduced to 0.03mm, and the glass with a thickness of 0.03mm is made.
6. a kind of preparation method of ultra-thin glass according to claim 1, it is characterised in that: described in the step (2)
Grinding and polishing concrete operations include the following steps:
A1, polishing: glass is placed in polishing machine, is polished using polishing fluid；
A2, ultrasonic cleaning: the glass by polishing is subjected to ultrasonic cleaning；
A3, drying: the glass that ultrasonic cleaning is crossed is dried.
7. a kind of preparation method of ultra-thin glass according to claim 6, it is characterised in that: in the step A1, polishing
Liquid is made of the raw material of following parts by weight: 24-32 parts of cerium oxide particles, 15-20 parts of polymaleic anhydride, 10-14 parts of stabilizer,
5-8 parts of citric acid, 2-4 parts of polyethylene glycol, 2-5 parts of triethanolamine, 0.5-1.5 parts of water-soluble inorganic salt, 55-70 parts of water.
8. the preparation method of the ultra-thin glass according to claim 7, it is characterised in that: described in the step A1
The partial size of cerium oxide particles is 100-150nm.
9. the preparation method of the ultra-thin glass according to claim 6, it is characterised in that: in the step A2, ultrasound
It is 25-45 DEG C that wave, which cleans water temperature, scavenging period 10-20min.
10. a kind of ultra-thin glass, it is characterised in that: the ultra-thin glass is by preparation side described in any one of claim 1-9
Method is made.
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| CN110767730A (en) * | 2019-10-31 | 2020-02-07 | 云谷（固安）科技有限公司 | Display panel, preparation method thereof and display device |
| CN112645603A (en) * | 2021-01-15 | 2021-04-13 | 赣州帝晶光电科技有限公司 | Special waterfall flow type chemical etching jig and preparation method of ultrathin glass |
| CN112679101A (en) * | 2020-12-25 | 2021-04-20 | 安徽金龙浩光电科技有限公司 | Glass with different thicknesses and processing technology thereof |
| CN113466987A (en) * | 2021-07-20 | 2021-10-01 | 拓米(成都)应用技术研究院有限公司 | Light guide plate structure and preparation method thereof |
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| CN110052898B (en) | 2022-01-07 |
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