CN112680120B - Material for processing optical element and preparation method thereof - Google Patents
Material for processing optical element and preparation method thereof Download PDFInfo
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- CN112680120B CN112680120B CN202011625697.3A CN202011625697A CN112680120B CN 112680120 B CN112680120 B CN 112680120B CN 202011625697 A CN202011625697 A CN 202011625697A CN 112680120 B CN112680120 B CN 112680120B
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Abstract
The invention discloses a material for processing an optical element and a preparation method thereof. The invention comprises alpha-cyanoacrylate, acetyl citrate triester, tris (2-n-butoxyethyl) phosphate, trimethylolpropane tris (3-mercaptopropionate), cellulose, fumed silica, tannic acid, phthalic anhydride. The invention adopts the solvent with branched chain structure and complexing ability, the proportion of the solvent is high, the curing speed and the curing stress of the alpha-cyanoacrylate are reduced, and the obtained material for processing the optical element has the characteristics of low viscosity, small PV value and proper bonding strength, and is suitable for bonding the optical element.
Description
Technical Field
The invention belongs to the technical field of optical precision machining, and particularly relates to a material for optical element machining and a preparation method thereof.
Background
Because of its unique physical and chemical properties, such as high hardness, good optical transparency, various refractive indexes, good homogeneity and the like, optical glass elements are widely used in semiconductor devices such as transistors, integrated circuits, printed circuit boards and the like, and optical instruments such as projectors, telescopes, optical microscopes and the like. Due to the requirement of the performance of the optical element product, the frosted surface of the glass is often subjected to strict polishing processing, and the glass to be processed needs to be fixed on a stainless steel mold in the polishing processing process. In particular, some high-end optical elements require high precision of the mirror surface shape of the optical glass, and the PV value is less than or equal to 0.1 lambda. However, the optical glass is fixed by bonding with an adhesive during the polishing process, and the PV value of the surface shape precision of the optical glass is increased due to the generation of shrinkage stress. Therefore, an adhesive for keeping the surface shape precision PV value of the optical glass mirror surface less than or equal to 0.1 lambda is needed.
Disclosure of Invention
The invention aims to provide a material for processing an optical element, aiming at the defects of the prior art.
The material for processing the optical element comprises the following raw materials in parts by weight:
the alpha-cyanoacrylate is one of alpha-ethyl cyanoacrylate or alpha-methoxy cyanoacrylate;
the acetyl tri-ester citrate is one of acetyl tributyl citrate or acetyl triethyl citrate;
the cellulose is one of cellulose acetate or cellulose acetate butyrate.
The invention also provides a preparation method of the material for processing the optical element, which comprises the following steps:
and sequentially adding the components into a stainless steel reaction kettle according to the amount, heating to 65-75 ℃, and stirring uniformly under the protection of nitrogen to obtain the material for processing the optical element.
The invention adopts the solvent with branched chain structure and complexing ability, the proportion of the solvent is high, the curing speed and the curing stress of the alpha-cyanoacrylate are reduced, and the obtained material for processing the optical element has the characteristics of low viscosity, small shrinkage stress and proper bonding strength, and is suitable for bonding the optical element.
Detailed Description
The present invention is further illustrated by the following specific examples.
The material for processing the optical element comprises the following raw materials in parts by weight:
the alpha-cyanoacrylate is one of alpha-ethyl cyanoacrylate or alpha-methoxy cyanoacrylate;
the acetyl tri-ester citrate is one of acetyl tributyl citrate or acetyl triethyl citrate;
the cellulose is one of cellulose acetate or cellulose acetate butyrate.
The preparation method of the material for processing the optical element comprises the following specific steps:
the components are sequentially added into a stainless steel reaction kettle according to the amount, the temperature is 65-75 ℃, and the adhesive for polishing and fixing the ground glass is obtained after the components are uniformly stirred under the protection of nitrogen.
The following examples employ the following performance tests:
1. tensile shear Strength test
According to the national standard GB/T7124-2008 "determination of tensile shear strength of adhesive (rigid material to rigid material)", according to the actual use condition of the project, the adhesive is bonded by using a glass test piece with length multiplied by width multiplied by thickness of 76.2mm multiplied by 25.4mm multiplied by 1.2mm as the adhesive of the invention (bonding lap length is 10 mm). Two ends of the glass test piece are respectively lapped with glass by using steel sheets with the length multiplied by the width multiplied by the thickness multiplied by 80mm multiplied by 25.4mm multiplied by 2mm, and are bonded by using epoxy glue (the lapping length is 20mm, and lapping surfaces between the glass are on the same plane), and the steel sheets are clamped for testing the tensile shear strength after the epoxy glue is completely cured.
2. And (3) degumming time determination:
the glass test piece with the length, width and thickness of 76.2mm, 25.4mm, 1.2mm is used as the adhesive for complete bonding. After 5 hours the glass was placed in acetone solvent and the time for the glass to detach was recorded.
3. The detection surface shape precision PV value of the glass mirror surface is as follows: and (4) detecting the separated glass by referring to the surface shape deviation of the optical parts of GB/T2831-2009 in the national standard.
Example 1
The components are sequentially added into a stainless steel reaction kettle according to the amount, the temperature is heated to 65 ℃, and the materials are uniformly stirred under the protection of nitrogen to obtain the optical element processing material. The 5 groups were set up according to the examples, the properties of which are shown in Table 1:
table 1.
| Serial number | Tensile shear Strength (MPa) | Degumming time (hours) | PV value (lambda) |
| 1 | 11.5 | 4.6 | 0.07 |
| 2 | 11.0 | 4.3 | 0.08 |
| 3 | 10.6 | 5.2 | 0.07 |
| 4 | 10.2 | 6.2 | 0.04 |
| 5 | 10.6 | 6.0 | 0.05 |
Example 2
The components are sequentially added into a stainless steel reaction kettle according to the amount, the temperature is heated to 65 ℃, and the materials are uniformly stirred under the protection of nitrogen to obtain the optical element processing material. The 5 groups were set up according to the examples, the properties of which are shown in Table 2:
table 2.
| Serial number | Tensile shear Strength (MPa) | Degumming time (hours) | PV value (lambda) |
| 1 | 10.5 | 4.6 | 0.06 |
| 2 | 10.2 | 5.3 | 0.07 |
| 3 | 10.5 | 6.2 | 0.06 |
| 4 | 11.2 | 5.2 | 0.04 |
| 5 | 10.8 | 6.0 | 0.04 |
Example 3
The components are sequentially added into a stainless steel reaction kettle according to the amount, the temperature is heated to 65 ℃, and the materials are uniformly stirred under the protection of nitrogen to obtain the optical element processing material. The 5 groups were set up according to the examples, the properties of which are shown in Table 3:
table 3.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above embodiments, and all embodiments are within the scope of the present invention as long as the requirements of the present invention are met.
Claims (5)
1. The material for processing the optical element is characterized by comprising the following raw materials in parts by weight:
2. the material for processing an optical element according to claim 1, wherein the α -cyanoacrylate is one of ethyl α -cyanoacrylate and methoxy α -cyanoacrylate.
3. An optical element-processing material as claimed in claim 1, wherein said tri-acetyl-citrate is one of tri-butyl acetyl-citrate or tri-ethyl acetyl-citrate.
4. The material for processing an optical element according to claim 1, wherein the cellulose is one of cellulose acetate and cellulose acetate butyrate.
5. The method for preparing the material for processing the optical element, as claimed in claims 1 to 4, is characterized in that the above components are sequentially added into a stainless steel reaction kettle according to the amount, heated to 65-75 ℃, and stirred uniformly under the protection of nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011625697.3A CN112680120B (en) | 2020-12-31 | 2020-12-31 | Material for processing optical element and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011625697.3A CN112680120B (en) | 2020-12-31 | 2020-12-31 | Material for processing optical element and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112680120A CN112680120A (en) | 2021-04-20 |
| CN112680120B true CN112680120B (en) | 2022-05-17 |
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| CN202011625697.3A Active CN112680120B (en) | 2020-12-31 | 2020-12-31 | Material for processing optical element and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5045397A (en) * | 1987-02-13 | 1991-09-03 | Hughes Aircraft Company | Optical adhesive system having low refractive index |
| CN1995252A (en) * | 2006-12-21 | 2007-07-11 | 大连轻工业学院 | Photocured cyanoacrylate adhesives |
| CN103694903A (en) * | 2013-12-02 | 2014-04-02 | 南通瑞普埃尔生物工程有限公司 | Instantaneous adhesive and preparation method thereof |
| CN108463525A (en) * | 2015-11-06 | 2018-08-28 | 汉高知识产权控股有限责任公司 | Cyanoacrylate compositions |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6977278B1 (en) * | 2001-01-08 | 2005-12-20 | Loctite (R&D) Ltd. | Cyanoacrylate compositions curable to flexible polymeric materials |
| KR102063507B1 (en) * | 2013-05-21 | 2020-01-09 | 헨켈 아이피 앤드 홀딩 게엠베하 | Cyanoacrylate compositions |
| CN103642409A (en) * | 2013-11-27 | 2014-03-19 | 常熟市富邦胶带有限责任公司 | OCA (Optical Clear Adhesive) tape |
-
2020
- 2020-12-31 CN CN202011625697.3A patent/CN112680120B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5045397A (en) * | 1987-02-13 | 1991-09-03 | Hughes Aircraft Company | Optical adhesive system having low refractive index |
| CN1995252A (en) * | 2006-12-21 | 2007-07-11 | 大连轻工业学院 | Photocured cyanoacrylate adhesives |
| CN103694903A (en) * | 2013-12-02 | 2014-04-02 | 南通瑞普埃尔生物工程有限公司 | Instantaneous adhesive and preparation method thereof |
| CN108463525A (en) * | 2015-11-06 | 2018-08-28 | 汉高知识产权控股有限责任公司 | Cyanoacrylate compositions |
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| CN112680120A (en) | 2021-04-20 |
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