CN112480929A - Glass thinning agent - Google Patents
Glass thinning agent Download PDFInfo
- Publication number
- CN112480929A CN112480929A CN202011149444.3A CN202011149444A CN112480929A CN 112480929 A CN112480929 A CN 112480929A CN 202011149444 A CN202011149444 A CN 202011149444A CN 112480929 A CN112480929 A CN 112480929A
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- acid
- salt
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- agent
- thinner
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K13/00—Etching, surface-brightening or pickling compositions
- C09K13/04—Etching, surface-brightening or pickling compositions containing an inorganic acid
- C09K13/06—Etching, surface-brightening or pickling compositions containing an inorganic acid with organic material
-
- 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 & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention discloses a glass thinning agent, which comprises the following components in percentage by weight: the glass thinning agent is 5-100%, the glass thinning promoter is 0-68%, the surfactant is 0-98%, the complexing agent is 0-70%, the chelating agent is 0-30% and the solvent is 0-99%, the glass thinning agent comprises one or more of alkaline metal or alkaline earth metal ions and hydroxyl ions.
Description
Technical Field
The invention relates to the field of glass thinning agents, in particular to a glass thinning agent.
Background
For glass etching, hydrofluoric acid is mostly adopted in the traditional mode. Hydrofluoric acid corrosion glass is a highly toxic and volatile chemical as a traditional glass thinning scheme, and has strong irritation and corrosivity on skin. The hydrogen ions in hydrofluoric acid have dehydrating and corrosive effects on human tissues, and fluorine is one of the most active nonmetallic elements. After the skin contacts with hydrofluoric acid, fluorine ions are continuously dissociated and permeate into deep tissues to dissolve cell membranes, so that liquefaction and necrosis of epidermis, dermis, subcutaneous tissues and muscular layers are caused. Fluorine ions can also interfere the activity of enolase to inhibit the oxygen uptake capacity of skin cells, and people can immediately die after taking about 1.5g of hydrofluoric acid, and inhale high-concentration hydrofluoric acid mist to cause bronchitis and hemorrhagic pulmonary edema. Hydrofluoric acid can also be absorbed through the skin causing severe poisoning.
Therefore, the conventional etching of glass with hydrofluoric acid has at least the following problems: (1) hydrofluoric acid process is a national policy restriction class, and the environmental evaluation is difficult to criticize; (2) the equipment investment is large, and sealed negative pressure equipment is needed for preventing hydrofluoric acid from leaking when the hydrofluoric acid is thinned; (3) the workshop safety risk is large, the maintenance cost is high, and because hydrofluoric acid is colorless and odorless, a sensor needs to be installed at a key position of the workshop to monitor the content of the hydrofluoric acid in real time; (4) the hydrofluoric acid is dangerous waste after corroding the glass, and the treatment cost is high; (5) hydrofluoric acid is a highly toxic substance, and has a great safety risk in transportation.
Disclosure of Invention
The invention provides a glass thinning agent, which solves a series of problems caused by the adoption of hydrofluoric acid in the conventional glass thinning agent.
In order to solve the technical problems, the technical scheme of the invention is as follows: the glass thinning agent comprises the following components in percentage by weight: 5-100% of glass thinning agent, 0-68% of glass thinning promoter, 0-98% of surfactant, 0-70% of complexing agent, 0-30% of chelating agent and 0-99% of solvent, wherein the glass thinning agent comprises one or more of alkali metal or alkaline earth metal ions and hydroxyl ions.
Preferably, the alkali metal or alkaline earth metal ions and the hydroxide ions in the glass thinning agent are obtained by mixing and dissociating alkali metal or alkaline earth metal hydroxides or one or more combinations of alkali compounds, or mixtures of alkali compounds and alkali metal or alkaline earth metal ion compounds by the solvent.
Preferably, the weight percentage of the glass thinning agent is 20% -100%.
Preferably, the alkali metal or alkaline earth metal ions in the glass thinner include one or more combinations of K +, Na +, Li +, Cs +, Ba2+, Sr2+, Ca2+, Mg2+, Be2+, Zn2 +.
Preferably, the glass thinning promoter comprises one or more combinations comprising gluconic acid or salt thereof, tartaric acid or salt thereof, oxalic acid or salt thereof, citric acid or salt thereof, acetic acid or salt thereof, hydroxyethylidene diphosphonic acid or salt thereof (HEDP), aminotrimethylene phosphonic acid or salt thereof (ATMP), diethylenetriamine pentamethylene phosphonic acid or salt thereof (DETPMP), ethylenediamine tetramethylene phosphonic acid or salt thereof (EDTMP), 2-hydroxyphosphonoacetic acid or salt thereof, polyepoxysuccinic acid or salt thereof, polyaspartic acid or salt thereof, phosphonocarboxylic acid copolymers or salt thereof.
Preferably, the weight percentage of the glass thinning promoter is 3% -30%.
Preferably, the surfactant includes a cationic surfactant and a nonionic surfactant.
Preferably, the cationic surfactant comprises a cationic surfactant containing one or two of a heterocyclic type and a xanthate type, and the nonionic surfactant comprises one or more of a combination of lauryl oleyl alcohol, palmityl alcohol, stearyl alcohol, cyclohexanol, long-chain fatty alcohol polyoxyethylene ether such as terpene alcohol, alkyl glucoside (APG), fatty acid glyceride, fatty acid sorbitan (span), polysorbate (tween), fatty acid polyoxyethylene ester, polyoxyethylene alkylamine, polyoxyethylene alkylolamide, and polyethers.
Preferably, the weight percentage of the surfactant is 0.01% -10%.
Preferably, the complexing agent comprises one or more combinations of tripolyphosphoric acid or a salt thereof, pyrophosphoric acid or a salt thereof, hexametaphosphoric acid or a salt thereof, nitrilotriacetic acid or a salt thereof, tartaric acid or a salt thereof, heptonic acid or a salt thereof, gluconic acid or a salt thereof, alginic acid or a salt thereof.
Preferably, the weight percentage of the complexing agent is 5% -10%.
Preferably, the chelating agent comprises one or more of ethylenediamine, 2' -bipyridine, oxalate, DTPA, EDTA, polyphosphate, aminocarboxylic acid, 1, 3-dione, and hydroxycarboxylic acid.
Preferably, the chelating agent accounts for 5-10% of the total weight of the composition.
The invention has the following beneficial effects: (1) the glass thinning agent disclosed by the invention does not contain fluorine, and is environment-friendly and healthy. And (2) the glass thinning agent is not a national policy restriction class because of no fluorine, and has no risk of difficult criticality of environmental evaluation. (3) The glass thinner of the invention has no volatile component, can be operated under normal pressure, has less equipment investment, and has basically no safety risk in workshops because the glass thinner has no volatile component and is basically nontoxic. (4) The waste material generated by the glass thinning agent is basically alkali liquor, and the waste material is obtained by using simple acid-base neutralization treatment, so that the glass thinning agent is environment-friendly and convenient to treat. (5) The substances used by the glass thinning agent are common non-toxic solid chemicals, and have no safety risk.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be described in further detail with reference to examples. The method comprises the following specific steps:
detailed description of the invention
The glass thinning agent comprises the following components in percentage by weight: 5-100% of glass thinning agent, 0-68% of glass thinning promoter, 0-98% of surfactant, 0-70% of complexing agent, 0-30% of chelating agent and 0-99% of solvent, wherein the glass thinning agent comprises one or more of alkali metal or alkaline earth metal ions and hydroxyl ions.
Specifically, the alkali metal or alkaline earth metal ions and hydroxide ions in the glass thinning agent are obtained by mixing and dissociating one or more of alkali metal or alkaline earth metal hydroxides or alkali compounds or a mixture of alkali compounds and alkali metal or alkaline earth metal ion compounds through a solvent.
Specifically, the weight percentage of the glass thinning agent is 20-100%.
Specifically, the alkali metal or alkaline earth metal ions in the glass thinning agent comprise one or more of K +, Na +, Li +, Cs +, Ba2+, Sr2+, Ca2+, Mg2+, Be2+ and Zn2 +.
Specifically, the glass thinning promoter comprises one or more of gluconic acid or salt thereof, tartaric acid or salt thereof, oxalic acid or salt thereof, citric acid or salt thereof, acetic acid or salt thereof, hydroxyethylidene diphosphonic acid or salt thereof (HEDP), aminotrimethylene phosphonic acid or salt thereof (ATMP), diethylenetriamine pentamethylene phosphonic acid or salt thereof (DETPMP), ethylenediamine tetramethylene phosphonic acid or salt thereof (EDTMP), 2-hydroxyphosphonoacetic acid or salt thereof, polyepoxysuccinic acid or salt thereof, polyaspartic acid or salt thereof, and phosphonocarboxylic acid copolymer or salt thereof.
Specifically, the weight percentage of the glass thinning accelerant is 3-30%.
Specifically, the surfactant includes a cationic surfactant and a nonionic surfactant.
Specifically, the cationic surfactant comprises one or two of a heterocyclic type and a xanthate type combined cationic surfactant, and the nonionic surfactant comprises one or more of lauryl oleyl alcohol, palmityl alcohol, stearyl alcohol, cyclohexanol, long-chain fatty alcohol polyoxyethylene ether such as terpene alcohol, alkyl glucoside (APG), fatty glyceride, sorbitan fatty acid (span), polysorbate (Tween), fatty acid polyoxyethylene ester, polyoxyethylene alkylamine, polyoxyethylene alkylolamide and polyether type combined nonionic surfactant.
Specifically, the weight percentage of the surfactant is 0.01-10%.
Specifically, the complexing agent comprises one or more of tripolyphosphoric acid or salt thereof, pyrophosphoric acid or salt thereof, hexametaphosphoric acid or salt thereof, nitrilotriacetic acid or salt thereof, tartaric acid or salt thereof, heptonic acid or salt thereof, gluconic acid or salt thereof, and alginic acid or salt thereof.
Specifically, the weight percentage of the complexing agent is 5% -10%.
Specifically, the chelating agent comprises one or more of ethylenediamine, 2' -bipyridine, oxalate, DTPA, EDTA, polyphosphate, aminocarboxylic acid, 1, 3-diketone and hydroxycarboxylic acid.
Specifically, the chelating agent accounts for 5-10% by weight.
According to the above scheme, the following embodiments and explanations are made in this example:
specifically, the glass thinning agent in this embodiment is green, environment-friendly and fluorine-free, and may Be directly involved in the glass thinning reaction process, and the glass thinning agent includes, but is not limited to, alkali metal or alkaline earth metal hydroxides or alkaline compounds containing K +, Na +, Li +, Cs +, Ba2+, Sr2+, Ca2+, Mg2+, Be2+, Zn2+, and the like, or mixtures of any alkaline compounds and alkali metal or alkaline earth metal ionic compounds, including, but not limited to, alkali metal hydroxides or alkaline compounds containing K +, Na +, and the like, or mixtures of any alkaline compounds and alkali metal compounds containing K +, Na +, and the like. When the glass thinning agent and the solvent are mixed together and under proper conditions, alkali metal ions such as K +, Na +, Li +, Cs +, Ba2+, Sr2+, Ca2+, Mg2+, Be2+, Zn2+ and the like, or alkaline earth metal ions and OH-ions can Be dissociated, and the ions can react with the glass so as to achieve the purpose of thinning. The content of the glass thinner may be 5% to 100%, and particularly, is preferably set to 20% to 100% in the present embodiment.
Specifically, the glass thinning promoter is a component capable of assisting or accelerating the glass thinning rate of the glass thinning agent, which indirectly participates in the glass thinning reaction process, and includes, but is not limited to, gluconic acid or salt thereof, tartaric acid or salt thereof, oxalic acid or salt thereof, citric acid or salt thereof, acetic acid or salt thereof, hydroxyethylidene diphosphonic acid or salt thereof (HEDP), aminotrimethylene phosphonic acid or salt thereof (ATMP), diethylenetriamine pentamethylene phosphonic acid or salt thereof (DETPMP), ethylenediamine tetramethylene phosphonic acid or salt thereof (EDTMP), 2-hydroxyphosphonoacetic acid or salt thereof, polyepoxysuccinic acid or salt thereof, polyaspartic acid or salt thereof, phosphonocarboxylic acid copolymer or salt thereof, and the like. The content of the glass thinning-promoting agent may be 0 to 68%, and particularly preferably set to 3 to 30% in the present embodiment.
Specifically, the surfactant can adjust the surface tension and viscosity of the solution, so as to adjust the interface condition of the glass and the glass thinning agent and the mass transfer process of the reaction of the glass thinning agent, so that a certain glass thinning promotion effect is achieved, and the surface quality of the thinned glass is improved. The surfactant content is 0 to 98%, and particularly preferably set to 0.01% to 10% in the present embodiment.
Specifically, the complexing agent can bind to ions after the glass reaction to promote the thinning rate, and can increase the surface quality of the thinned glass, including but not limited to tripolyphosphoric acid or a salt thereof, pyrophosphoric acid or a salt thereof, hexametaphosphoric acid or a salt thereof, nitrilotriacetic acid or a salt thereof, tartaric acid or a salt thereof, heptonic acid or a salt thereof, gluconic acid or a salt thereof, alginic acid or a salt thereof, and the like. The content is 0 to 70%, and particularly preferably set to 5 to 10% in the present embodiment.
Specifically, the chelating agent is more effective than a conventional complexing agent, including but not limited to ethylenediamine, 2' -bipyridine, oxalate, DTPA, EDTA, polyphosphate, aminocarboxylic acid, 1, 3-dione, hydroxycarboxylic acid, and the like. The content is 0 to 30%, and particularly preferably set to 5 to 10% in the present embodiment.
Detailed description of the invention
The main differences between the second embodiment and the first embodiment are as follows: the glass thinning agent is mainly set by sodium hydroxide or sodium hydroxide and potassium hydroxide, 9 groups of formulas (shown in the following tables 1 and 2 specifically) are provided, the glass thinning accelerant, the surfactant, the complexing agent, the chelating agent and the solvent are also set in a related manner, related environmental conditions are set, and then the glass thinning time is detected, wherein the following tables are specifically provided:
(Table 1)
(Table 2)
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (13)
1. The glass thinning agent is characterized by comprising the following components in percentage by weight: 5-100% of glass thinning agent, 0-68% of glass thinning promoter, 0-98% of surfactant, 0-70% of complexing agent, 0-30% of chelating agent and 0-99% of solvent, wherein the glass thinning agent comprises one or more of alkali metal or alkaline earth metal ions and hydroxyl ions.
2. The glass thinner as defined in claim 1, wherein: the alkali metal or alkaline earth metal ions and the hydroxide ions in the glass thinning agent are obtained by mixing and dissociating the alkali metal or alkaline earth metal ions and the hydroxide ions or the hydroxide ions and the hydroxide ions in the glass thinning agent.
3. The glass thinner according to claim 2, wherein: the weight percentage of the glass thinning agent is 20-100%.
4. The glass thinner as set forth in any one of claims 1 to 3, wherein: the alkali metal or alkaline earth metal ions in the glass thinning agent comprise one or more of K +, Na +, Li +, Cs +, Ba2+, Sr2+, Ca2+, Mg2+, Be2+ and Zn2 +.
5. The glass thinner as defined in claim 1, wherein: the glass thinning promoter comprises one or more combinations of gluconic acid or salt thereof, tartaric acid or salt thereof, oxalic acid or salt thereof, citric acid or salt thereof, acetic acid or salt thereof, hydroxyethylidene diphosphonic acid or salt thereof (HEDP), aminotrimethylene phosphonic acid or salt thereof (ATMP), diethylenetriamine pentamethylene phosphonic acid or salt thereof (DETPMP), ethylenediamine tetramethylene phosphonic acid or salt thereof (EDTMP), 2-hydroxyphosphonoacetic acid or salt thereof, polyepoxysuccinic acid or salt thereof, polyaspartic acid or salt thereof, phosphonocarboxylic acid copolymer or salt thereof.
6. The glass thinner of claim 5, wherein: the weight percentage of the glass thinning accelerant is 3-30%.
7. The glass thinner as set forth in claim 5 or 6, wherein: the surfactant includes a cationic surfactant and a nonionic surfactant.
8. The glass thinner as defined in claim 7, wherein: the cationic surfactant comprises one or two of a heterocyclic type and a xanthate type cationic surfactant, and the nonionic surfactant comprises one or more of lauryl oleyl alcohol, palmityl alcohol, stearyl alcohol, cyclohexanol, long-chain fatty alcohol polyoxyethylene ether such as terpene alcohol, alkyl glucoside (APG), fatty glyceride, sorbitan fatty acid (span), polysorbate (Tween), fatty acid polyoxyethylene ester, polyoxyethylene alkylamine, polyoxyethylene alkylolamide and polyether type nonionic surfactants.
9. The glass thinner as defined in claim 7, wherein: the weight percentage of the surfactant is 0.01-10%.
10. The glass thinner as defined in claim 1, wherein: the complexing agent comprises one or more of tripolyphosphoric acid or salt thereof, pyrophosphoric acid or salt thereof, hexametaphosphoric acid or salt thereof, nitrilotriacetic acid or salt thereof, tartaric acid or salt thereof, heptonic acid or salt thereof, gluconic acid or salt thereof, and alginic acid or salt thereof.
11. The glass thinner of claim 10, wherein: the weight percentage of the complexing agent is 5% -10%.
12. The glass thinner as defined in claim 1, wherein: the chelating agent comprises one or more of ethylenediamine, 2' -bipyridine, oxalate, DTPA, EDTA, polyphosphate, aminocarboxylic acid, 1, 3-diketone and hydroxycarboxylic acid.
13. The glass thinner of claim 12, wherein: the chelating agent accounts for 5-10% of the total weight of the composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011149444.3A CN112480929A (en) | 2020-10-23 | 2020-10-23 | Glass thinning agent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011149444.3A CN112480929A (en) | 2020-10-23 | 2020-10-23 | Glass thinning agent |
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| CN112480929A true CN112480929A (en) | 2021-03-12 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114686234A (en) * | 2020-12-30 | 2022-07-01 | 伯恩光学(惠州)有限公司 | Thinning agent for rear cover of glass mobile phone |
| CN114686236A (en) * | 2020-12-30 | 2022-07-01 | 伯恩光学(惠州)有限公司 | Thinning agent for front cover of glass mobile phone |
| CN114686235A (en) * | 2020-12-30 | 2022-07-01 | 伯恩光学(惠州)有限公司 | Thinning agent for rear cover of glass mobile phone |
| CN114933419A (en) * | 2022-04-29 | 2022-08-23 | 北京仿生界面科学未来技术研究院 | Method for preparing ultrathin flexible glass by utilizing bionic weathering enzyme composite glass thinning agent |
| CN117247234A (en) * | 2023-11-20 | 2023-12-19 | 宁波旗滨光伏科技有限公司 | Glass chemical thinning agent and application thereof |
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| CN114686234A (en) * | 2020-12-30 | 2022-07-01 | 伯恩光学(惠州)有限公司 | Thinning agent for rear cover of glass mobile phone |
| CN114686236A (en) * | 2020-12-30 | 2022-07-01 | 伯恩光学(惠州)有限公司 | Thinning agent for front cover of glass mobile phone |
| CN114686235A (en) * | 2020-12-30 | 2022-07-01 | 伯恩光学(惠州)有限公司 | Thinning agent for rear cover of glass mobile phone |
| CN114933419A (en) * | 2022-04-29 | 2022-08-23 | 北京仿生界面科学未来技术研究院 | Method for preparing ultrathin flexible glass by utilizing bionic weathering enzyme composite glass thinning agent |
| CN114933419B (en) * | 2022-04-29 | 2023-09-29 | 北京仿生界面科学未来技术研究院 | Method for preparing ultrathin flexible glass by using bionic weathering enzyme composite glass thinning agent |
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| CN117247234A (en) * | 2023-11-20 | 2023-12-19 | 宁波旗滨光伏科技有限公司 | Glass chemical thinning agent and application thereof |
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Application publication date: 20210312 |
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| RJ01 | Rejection of invention patent application after publication |