CN111925126A - Paste for repairing slight scratch of optical glass - Google Patents

Paste for repairing slight scratch of optical glass Download PDF

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Publication number
CN111925126A
CN111925126A CN202010808463.6A CN202010808463A CN111925126A CN 111925126 A CN111925126 A CN 111925126A CN 202010808463 A CN202010808463 A CN 202010808463A CN 111925126 A CN111925126 A CN 111925126A
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CN
China
Prior art keywords
parts
repair
glass
acid
optical glass
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Pending
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CN202010808463.6A
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Chinese (zh)
Inventor
熊国祥
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Zhengzhou Hiho Optical Technology Co ltd
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Zhengzhou Hiho Optical Technology Co ltd
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Priority to CN202010808463.6A priority Critical patent/CN111925126A/en
Publication of CN111925126A publication Critical patent/CN111925126A/en
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C15/00Surface treatment of glass, not in the form of fibres or filaments, by etching
    • C03C15/02Surface treatment of glass, not in the form of fibres or filaments, by etching for making a smooth surface

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

The invention belongs to the field of optical glass repair, and particularly relates to a repair paste for slight scratches of optical glass, which comprises the following components in parts by weight: 1.5 to 2.5 parts of ammonium bifluoride, 2 to 3 parts of water, 0.2 to 0.5 part of hydrofluoric acid, 0.5 to 1.5 parts of nitric acid, 0.5 to 1 part of phosphoric acid, 1 to 5 parts of oxalic acid, 1.5 to 2.5 parts of calcium dihydrogen phosphate and 0.05 to 0.2 part of acacia gum. The repair paste provided by the invention can be widely applied to each production process of optical products, so that slight scratches generated in the production process of each process are eliminated, and the purpose of improving the yield of the optical products is realized; the repair paste product can realize the repair work of slight scratches of the optical glass, has the advantages of simple process method, high repair efficiency, low repair cost and the like, and improves the product yield of the optical glass in the production process.

Description

Paste for repairing slight scratch of optical glass
Technical Field
The invention belongs to the field of optical glass repair, and particularly relates to a repair paste for slight scratches of optical glass.
Background
In the production process of optical glass products, glass slag generated by processes such as cutting and the like of intermediate products such as optical glass substrates, display panels and the like can cause slight scratches on the surfaces of the glass, if the defects can not be eliminated in time and directly enter the next production process, the yield of the optical products can be greatly reduced, and the product repair paste is applied to the production process of the optical products, eliminates slight scratches generated in the production process of each process and achieves the purpose of improving the yield of the optical products; the scratch repair of the existing optical glass generally adopts a grinding and polishing physical process, the grinding and polishing process can cause the local thinning of the surface of the glass to cause the slight distortion and distortion of an image, meanwhile, the grinding and polishing process has complicated equipment flow, low repair efficiency and high repair cost, and the repair paste used by the existing automobile glass mainly adds silicon oxide powder, and the repair paste can not cause problems when being applied to the automobile glass, but can influence the light transmission of the optical glass when being applied to the optical glass, so that the traditional glass repair paste can not be practically used for the optical glass.
Compared with the prior art, the repair paste can realize the repair work of slight scratches of the optical glass, has the advantages of simple process method, high repair efficiency, low repair cost and the like, and improves the product yield of the optical glass in the production process.
Disclosure of Invention
Aiming at the technical problems, the invention provides a light scratch repair paste for optical glass.
The invention adopts the following technical scheme:
the optical glass slight scratch repair paste comprises the following components in parts by weight: 1.5 to 2.5 parts of ammonium bifluoride, 2 to 3 parts of water, 0.2 to 0.5 part of hydrofluoric acid, 0.5 to 1.5 parts of nitric acid, 0.5 to 1 part of phosphoric acid, 1 to 5 parts of oxalic acid, 1.5 to 2.5 parts of calcium dihydrogen phosphate and 0.05 to 0.2 part of acacia gum.
Preferably, the components are as follows according to the parts by weight: 2 parts of ammonium bifluoride, 2.5 parts of water, 0.5 part of hydrofluoric acid, 1 part of nitric acid, 0.5 part of phosphoric acid, 1 part of oxalic acid, 2 parts of monocalcium phosphate and 0.05 part of gum arabic.
Preferably, the components are as follows according to the parts by weight: 2.5 parts of ammonium bifluoride, 3 parts of water, 0.5 part of hydrofluoric acid, 0.5 part of nitric acid, 0.5 part of phosphoric acid, 1 part of oxalic acid, 2.5 parts of monocalcium phosphate and 0.05 part of gum arabic.
Preferably, the components are as follows according to the parts by weight: 2 parts of ammonium bifluoride, 2 parts of water, 0.5 part of hydrofluoric acid, 1.5 parts of nitric acid, 0.5 part of phosphoric acid, 1 part of oxalic acid, 2.5 parts of monocalcium phosphate and 0.05 part of gum arabic.
Ammonium hydrogen fluoride NH4HF2The glass etching agent has a corrosion effect on glass, can dissolve the glass, is mainly used as a glass etching agent, and utilizes ammonium bifluoride and various acid solutions to complete the corrosion and dissolution of the glass, so that the surface of the glass is uniformly thinned, and the purpose of eliminating slight scratches is achieved. The calcium dihydrogen phosphate is an acidic additive and plays a role in filling and thickening in the repair paste, and the gum arabic is a viscosity regulator and is used for regulating the viscosity of the repair paste. The repairing process mainly comprises the following chemical reactions:
NH4F+HNO3→NH4NO3+HF
NH4F+H3PO4→ (NH4)3PO4+HF
CaF2+HNO3→Ca(NO32+HF
Na2O·CaO·6SiO2+28HF→6SiF4+CaF2+2NaF+14H2O
SiF4+2HF→H2SiF6
advantageous effects
The invention provides a repair paste for quickly and efficiently eliminating slight scratches on the surface of glass, which is prepared into a paste-shaped glass slight scratch repair agent by utilizing the multi-type mixed acid effect and F-SiO with glass surface2Grid structure and silicate filler reaction generate crystalline grain form aluminium calcium complex salt to pile up in the mar concavity, fill the mar, utilize hydrofluoric acid, nitric acid, phosphoric acid and ammonium bifluoride to the effect of glass etching attenuate simultaneously, level the surface repair of mar department, guaranteed that the glass surface attenuate is even unanimous, original surface structure has been kept on the glass surface after the attenuate, the smoothness degree of observing the glass surface under the microscope keeps unanimous around corroding, the consequence that probably leads to the slight distortion of image because the attenuate has been stopped.
The repair paste provided by the invention can be widely applied to each production process of optical products, so that slight scratches generated in the production process of each process are eliminated, and the purpose of improving the yield of the optical products is realized; the repair paste product can realize the repair work of slight scratches of the optical glass, has the advantages of simple process method, high repair efficiency, low repair cost and the like, and improves the product yield of the optical glass in the production process.
Drawings
FIG. 1 is a photograph of a glass electron microscope with a scratch;
fig. 2 is a glass electron micrograph of the scratch of fig. 1 after repair.
Detailed Description
A slight scratch repair paste for optical glass comprises water, ammonium bifluoride, hydrofluoric acid, nitric acid, phosphoric acid, oxalic acid, calcium dihydrogen phosphate, and gum arabic, wherein ammonium bifluoride (NH)4HF2) The glass etching agent has a corrosion effect on glass, can dissolve the glass, is mainly used as a glass etching agent, and utilizes ammonium bifluoride and various acid solutions to complete the corrosion and dissolution of the glass, so that the surface of the glass is uniformly thinned, and the purpose of eliminating slight scratches is achieved. The calcium dihydrogen phosphate is an acidic additive and plays a role in filling and thickening in the repair paste, and the gum arabic is a viscosity regulator and is used for regulating the viscosity of the repair paste. The repairing principle of the invention is as follows: using F-Ions and SiO on the surface of the glass2Grid structure and silicate filler reaction generate crystalline form aluminium calcium complex salt, and pile up in the mar concavity, fill the mar, utilize hydrofluoric acid simultaneously, nitric acid, phosphoric acid and ammonium bifluoride are to the effect of glass etching attenuate, with the resurfacing of mar department level, it is even unanimous to have ensured the even attenuate of glass surface, glass surface after the attenuate has kept original surface structure, the smoothness degree of observing glass surface under the microscope keeps unanimous around corroding, stopped probably leading to the result of the slight distortion of image because the attenuate, mainly include following chemical reaction:
NH4F+HNO3→NH4NO3+HF
NH4F+H3PO4→ (NH4)3PO4+HF
CaF2+HNO3→Ca(NO32+HF
Na2O·CaO·6SiO2+28HF→6SiF4+CaF2+2NaF+14H2O
SiF4+2HF→H2SiF6
the invention is further illustrated by the following specific examples:
example 1
1. Preparing a glass slight scratch repair paste according to the proportion of 2.5 parts of water, 2 parts of ammonium bifluoride, 0.5 part of hydrofluoric acid, 1 part of nitric acid, 0.5 part of phosphoric acid, 1 part of oxalic acid, 2 parts of monocalcium phosphate and 0.05 part of gum;
2. fully and uniformly stirring the prepared scratch repairing paste in a PVC container;
3. then subpackaging in PVC plastic barrels, sealing and storing;
4. when in use, the mixture is stirred uniformly again and then can be put into use; the glass has good repairing effect on slight scratches after use.
Example 2
1. Preparing a glass slight scratch repair paste according to the proportion of 3 parts of water, 2.5 parts of ammonium bifluoride, 0.5 part of hydrofluoric acid, 0.5 part of nitric acid, 0.5 part of phosphoric acid, 1 part of oxalic acid, 2.5 parts of monocalcium phosphate and 0.05 part of gum;
2. fully and uniformly stirring the prepared scratch repairing paste in a PVC container;
3. then subpackaging in PVC plastic barrels, sealing and storing;
4. in the using period, the mixture can be put into use after being stirred uniformly again; the glass has good repairing effect on slight scratches after use.
Example 3
1. Preparing a glass slight scratch repair paste according to the proportion of 2 parts of water, 2 parts of ammonium bifluoride, 0.5 part of hydrofluoric acid, 1.5 parts of nitric acid, 0.5 part of phosphoric acid, 1 part of oxalic acid, 2.5 parts of monocalcium phosphate and 0.05 part of gum;
2. fully and uniformly stirring the prepared scratch repairing paste in a PVC container;
3. then subpackaging in PVC plastic barrels, sealing and storing;
4. in the using period, the mixture can be put into use after being stirred uniformly again; the glass has good repairing effect on slight scratches after use.
Test examples
The repair paste prepared in example 1 is applied to optical glass with slight scratches, scanning is performed by using a 640-fold electron microscope, and the scanning images of the electron microscope before and after repair are respectively referred to fig. 1 and fig. 2, and it can be seen from the images that the surface of the glass after repair is flat, and the smoothness of the surface of the glass is consistent after repair.
In the present specification, various embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts in the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (4)

1. The optical glass slight scratch repair paste is characterized by comprising the following components in parts by weight: 1.5 to 2.5 parts of ammonium bifluoride, 2 to 3 parts of water, 0.2 to 0.5 part of hydrofluoric acid, 0.5 to 1.5 parts of nitric acid, 0.5 to 1 part of phosphoric acid, 1 to 5 parts of oxalic acid, 1.5 to 2.5 parts of calcium dihydrogen phosphate and 0.05 to 0.2 part of acacia gum.
2. The optical glass slight scratch repair paste according to claim 1, wherein the components are as follows by weight: 2 parts of ammonium bifluoride, 2.5 parts of water, 0.5 part of hydrofluoric acid, 1 part of nitric acid, 0.5 part of phosphoric acid, 1 part of oxalic acid, 2 parts of monocalcium phosphate and 0.05 part of gum arabic.
3. The optical glass slight scratch repair paste according to claim 1, wherein the components are as follows by weight: 2.5 parts of ammonium bifluoride, 3 parts of water, 0.5 part of hydrofluoric acid, 0.5 part of nitric acid, 0.5 part of phosphoric acid, 1 part of oxalic acid, 2.5 parts of monocalcium phosphate and 0.05 part of gum arabic.
4. The optical glass slight scratch repair paste according to claim 1, wherein the components are as follows by weight: 2 parts of ammonium bifluoride, 2 parts of water, 0.5 part of hydrofluoric acid, 1.5 parts of nitric acid, 0.5 part of phosphoric acid, 1 part of oxalic acid, 2.5 parts of monocalcium phosphate and 0.05 part of gum arabic.
CN202010808463.6A 2020-08-12 2020-08-12 Paste for repairing slight scratch of optical glass Pending CN111925126A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113526868A (en) * 2021-07-06 2021-10-22 苏州光大光电科技有限公司 Weather-resistant optical glass and production process thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781792A (en) * 1985-05-07 1988-11-01 Hogan James V Method for permanently marking glass
CN1299786A (en) * 1999-12-16 2001-06-20 化工产品开发公司 Composition for etching glass, glass-etching liquid and method, and etching product thereof
CN1380572A (en) * 2001-04-12 2002-11-20 西山不锈化学股份有限公司 Chemical polishing method and device for liquid crystal glass base plate
CN103508676A (en) * 2013-07-24 2014-01-15 芜湖长信科技股份有限公司 Method for avoiding defect in LCD glass substrate thinning process and acid solution configuration method
KR20150116525A (en) * 2014-04-07 2015-10-16 (주)엘지하우시스 Method for chamfering cutting plane of glass substrate
CN107640907A (en) * 2017-10-27 2018-01-30 惠州市清洋实业有限公司 A kind of preprocess method of glass thinning
CN110156338A (en) * 2019-04-17 2019-08-23 蚌埠国显科技有限公司 A kind of glass microlithography processes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781792A (en) * 1985-05-07 1988-11-01 Hogan James V Method for permanently marking glass
CN1299786A (en) * 1999-12-16 2001-06-20 化工产品开发公司 Composition for etching glass, glass-etching liquid and method, and etching product thereof
CN1380572A (en) * 2001-04-12 2002-11-20 西山不锈化学股份有限公司 Chemical polishing method and device for liquid crystal glass base plate
CN103508676A (en) * 2013-07-24 2014-01-15 芜湖长信科技股份有限公司 Method for avoiding defect in LCD glass substrate thinning process and acid solution configuration method
KR20150116525A (en) * 2014-04-07 2015-10-16 (주)엘지하우시스 Method for chamfering cutting plane of glass substrate
CN107640907A (en) * 2017-10-27 2018-01-30 惠州市清洋实业有限公司 A kind of preprocess method of glass thinning
CN110156338A (en) * 2019-04-17 2019-08-23 蚌埠国显科技有限公司 A kind of glass microlithography processes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113526868A (en) * 2021-07-06 2021-10-22 苏州光大光电科技有限公司 Weather-resistant optical glass and production process thereof

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Application publication date: 20201113

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