CN113004851A - Optical adhesive for adhering glass and preparation method and application thereof - Google Patents
Optical adhesive for adhering glass and preparation method and application thereof Download PDFInfo
- Publication number
- CN113004851A CN113004851A CN202110255392.6A CN202110255392A CN113004851A CN 113004851 A CN113004851 A CN 113004851A CN 202110255392 A CN202110255392 A CN 202110255392A CN 113004851 A CN113004851 A CN 113004851A
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- resin
- glass
- optical cement
- mixture
- polyurethane
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The invention relates to an optical adhesive for adhering glass, a preparation method and application thereof, wherein the optical adhesive for adhering glass is prepared from the following components in percentage by weight: 30-40% of polyurethane, 10-30% of epoxy resin, 10-25% of fully oxidized petroleum resin, 5-15% of carbamate, 1-10% of acrylic resin, 1-10% of ethyl acetate, 1-10% of acetone and 1-10% of polyester acrylate UV resin. The optical adhesive for adhering glass can realize firm combination of TAC, PC, PA, PET, PMMA, polarizing films, PVA, color-changing films and other materials with glass lenses, and can effectively improve the impact resistance, the crushing resistance and the safety of the adhered lenses.
Description
Technical Field
The invention relates to the technical field of optical cement, in particular to optical cement for sticking glass and a preparation method and application thereof.
Background
The optical adhesive is a special adhesive for cementing transparent optical elements (such as lenses and the like), has the characteristics of colorless transparency, light transmittance of over 90 percent, good cementing strength, capability of being cured at room temperature or middle temperature, small curing shrinkage and the like. The traditional optical cement is easy to realize the combination between resin lenses, because the resin is an organic polymer and is similar to the components of the commonly used adhesives such as organic silica gel, acrylic resin, unsaturated polyester, polyurethane, epoxy resin and the like of the optical cement, and the components are easy to interact with the resin, thereby realizing the adhesion between the resins.
The glass lens is another major optical element different from resin, and the optical glass has the advantages of excellent optical property, difficulty in scratching, high refractive index, good light transmittance and mechanical and chemical properties, constant refractive index, stable physical and chemical properties and the like. However, it is difficult to bond glass, particularly as a lens, to achieve firm bonding between thin layers and to withstand impact without being broken after bonding. The conventional adhesive for resin lenses can be peeled off by hands if being applied to the combination of glass lenses and thin layers of other materials, and the use requirements are difficult to meet.
Patent application CN105713550A discloses an ultraviolet light curing optical cement for glass optical devices and a preparation method thereof, wherein the ultraviolet light curing optical cement for glass optical devices comprises the following components in parts by weight: 40-90 parts of sulfur-containing polyurethane graft modified sulfur-containing epoxy acrylate with the graft modification rate of more than 50%, 10-55 parts of reactive diluent and 1-5 parts of photoinitiator. Among them, the preparation process of the sulfur-containing polyurethane graft-modified sulfur-containing epoxy acrylate is complicated, and mass production and application are limited.
Patent application CN108949044A discloses an OCA optical adhesive for a mobile phone glass screen protective film, which comprises the following components in parts by weight: 20-40 parts of saturated polyacrylate containing crosslinkable groups, 15-25 parts of isobornyl methacrylate, 10-15 parts of mercaptoester resin, 1-5 parts of acetamide, 2-7 parts of hexamethylphosphorodiamide, 3-8 parts of 2, 3-epoxy cyclopentyl ether, 1-6 parts of tetraethyl mike's ketone, 4-8 parts of aliphatic diethylene glycol ester, 5-10 parts of isooctyl trihydrophobic propionate, 1-5 parts of nano zinc oxide, 2-6 parts of nano silicon dioxide, 1-7 parts of p-hydroxyanisole and 0.1-1.0 part of initiator. The optical cement is used for sticking the protective film of the glass screen of the mobile phone, the sticking strength is limited, and the mobile phone film is easy to separate from the screen under the impact of external force, namely the optical cement is not impact-resistant.
Disclosure of Invention
The invention aims to overcome the defect that the existing optical cement can not be well bonded with glass and other materials, and provides the optical cement for bonding the glass, which has good bonding firmness with the glass lens for the materials such as TAC, PC, PA, PET, PMMA, polarizing film, PVA, color-changing film and the like, can effectively improve the impact resistance, the crushing resistance and the safety of the bonded lens, and simultaneously effectively solves the problems that the glass lens is difficult to be dyed with progressive color or difficult to be dyed with a dyeing process, has poor effect and the like.
The components are matched with each other to realize the tight combination of the glass and different materials in a laminating way, wherein when the polyurethane, the epoxy resin, the full-oxidized petroleum resin and the polyester acrylate UV resin are compounded, the colloid viscosity is too high, and the sticking effect on the glass layer and the TAC layer is poor; in addition, although the viscosity can be improved by replacing the epoxy resin with the acrylic resin, the dried adhesive part is easy to loosen and has poor durability. The inventor continuously searches that the finally developed optical cement formula is as follows: 30-40% of polyurethane, 10-30% of epoxy resin, 10-20% of fully oxidized petroleum resin, 5-15% of carbamate, 1-10% of acrylic resin, 1-10% of ethyl acetate, 1-10% of acetone and 1-10% of polyester acrylate UV resin. In the formula, the carbamate has unique advantages of promoting the fusion of the polyester acrylate UV resin and a system and improving the adhesive force of the colloid, and the optical adhesive can realize the layered adhesive combination between glass and base materials made of different materials by matching the carbamate and the polyester acrylate UV resin.
During preparation, the polyester acrylate UV resin is difficult to be uniformly mixed with other substances in a system, repeated tests show that when polyurethane, epoxy resin and fully oxidized petroleum resin are mixed and uniformly stirred to obtain a mixture A, carbamate is added firstly, the polyester acrylate UV resin is added after uniform stirring, the polyester acrylate UV resin can be uniformly mixed with the previous system, and finally acrylic resin, ethyl acetate and acetone are added to stir the mixture to obtain a colloid with proper viscosity, namely an optical adhesive finished product. The preparation method is simple to operate and easy to industrially popularize and apply.
The specific scheme is as follows:
the optical adhesive for adhering glass is prepared from the following components in percentage by weight: 30-40% of polyurethane, 10-30% of epoxy resin, 10-25% of fully oxidized petroleum resin, 5-15% of carbamate, 1-10% of acrylic resin, 1-10% of ethyl acetate, 1-10% of acetone and 1-10% of polyester acrylate UV resin.
Further, the paint is prepared from the following components in percentage by weight: the paint is prepared from the following components in percentage by weight: 32-38% of polyurethane, 15-25% of epoxy resin, 15-23% of fully oxidized petroleum resin, 5-15% of carbamate, 1-5% of acrylic resin, 2-8% of ethyl acetate, 2-8% of acetone and 1-8% of polyester acrylate UV resin.
Further, the paint is prepared from the following components in percentage by weight: 35% of polyurethane, 20% of epoxy resin, 20% of fully oxidized petroleum resin, 10% of urethane, 4% of acrylic resin, 5% of ethyl acetate, 3% of acetone and 3% of polyester acrylate UV resin.
The invention also provides a preparation method of the optical cement for sticking glass, which comprises the following steps:
step 1: weighing the raw materials according to the weight percentage, mixing the polyurethane, the epoxy resin and the fully oxidized petroleum resin, and uniformly stirring to obtain a mixture A;
step 2: adding carbamate into the mixture A obtained in the step 1, and uniformly stirring to obtain a mixture B;
and step 3: adding polyester acrylate UV resin into the mixture B obtained in the step 2, and uniformly stirring to obtain a mixture C;
and 4, step 4: and (3) adding acrylic resin, ethyl acetate and acetone into the mixture C obtained in the step (3), and uniformly stirring to obtain the optical adhesive for adhering glass.
Further, the rotation speed of the stirring in the step 1 is 1500r/min and the time is 140 minutes and 100-.
Further, the rotation speed of stirring in the step 2 is 100-1200r/min, and the time is 40-80 minutes.
Further, the rotation speed of stirring in the step 3 is 100-800r/min, and the time is 20-40 minutes.
Further, the rotation speed of the stirring in the step 4 is 1500r/min and the time is 140 minutes and 100-.
The invention also protects the preparation method of the optical cement for pasting glass, and the prepared optical cement for pasting glass.
The invention also protects the application of the optical cement for sticking the glass, and is used for realizing the sticking combination of the glass and other materials, wherein the other materials are glass or resin.
Has the advantages that: the optical adhesive for adhering glass can solve the problem that other materials are difficult to adhere to a glass layer, and can be coated between the glass layer and resin layers such as TAC, PC, PA, PET, PMMA, a polarizing film, PVA, a color-changing film and the like to obtain an integrated lens with the strength meeting the lens requirement, so that the glass lens and the resin lens are combined, the combination force between the glass lens and the resin lens is high, the integrated lens is not easy to break under the impact of external force, and the integrated lens has certain impact resistance.
Furthermore, the preparation method of the optical cement for pasting glass utilizes the combination of the urethane and the solid resins such as polyurethane, epoxy resin, fully oxidized petroleum resin and the like to provide a better dispersion foundation for adding the polyester acrylate UV resin, thereby solving the problems of overhigh system viscosity, difficult uniform dispersion and poor pasting effect caused by adding the polyester acrylate UV resin.
And secondly, during preparation, the mixture C is finally diluted and dispersed by acrylic resin, ethyl acetate and acetone to obtain colloid with high stability, and the idea that the conventional colloid is firstly dispersed by a solvent during preparation is different from the idea that the conventional colloid is firstly dispersed.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available. In the following examples, "%" means weight percent, unless otherwise specified.
The following main reagents were used:
the polyester acrylate UV resin, a conventional commercially available product, may be, for example, a product manufactured by Jiangyin Getta chemical Co., Ltd, model number GT-6830.
Example 1
The preparation method of the optical cement for adhering glass comprises the following steps:
step 1: weighing the raw materials according to the weight percentage in the table 1, mixing the polyurethane, the epoxy resin and the fully oxidized petroleum resin, and uniformly stirring at the rotating speed of 500r/min for 120 minutes to obtain a mixture A;
step 2: adding carbamate into the mixture A obtained in the step 1, and uniformly stirring at the rotating speed of 500r/min for 60 minutes to obtain a mixture B;
and step 3: adding polyester acrylate UV resin into the mixture B obtained in the step 2, and uniformly stirring at the rotating speed of 500r/min for 30 minutes to obtain a mixture C;
and 4, step 4: and (3) adding acrylic resin, ethyl acetate and acetone into the mixture C obtained in the step (3), and uniformly stirring at the rotating speed of 500r/min for 120 minutes to obtain the optical adhesive for adhering glass.
TABLE 1 Scale for raw materials (% by weight)
Examples 2 to 5
The optical cement for bonding glass was prepared in the same manner as in example 1, with the amounts of the respective raw materials being shown in Table 1.
Comparative examples 1 to 4
Comparative optical glues were prepared with the amounts of the respective raw materials as indicated in table 1, in the same manner as in example 1, wherein, when one of the raw materials was used in an amount of 0, the corresponding addition was omitted, i.e. not added.
Adhesion Performance test
The prepared optical adhesive is applied to adhering a glass sheet and a TAC sheet, wherein the thickness of the glass sheet is 100 micrometers, the thickness of the TAC sheet is 100 micrometers, a proper amount of optical adhesive is coated on the concave surface of the glass sheet, then the convex surface of the TAC sheet is overlapped with the concave surface of the glass sheet, glue extruding and sizing are carried out by a manufacturing tool, after heat curing is carried out at 80 ℃ for 5 minutes, UV light curing is carried out for 5 seconds, the adhering strength and the impact resistance are detected, and the result is shown in Table 2. Impact resistance a 16g steel weight ball was dropped from 127cm to impact the convex surface of the lens to evaluate the impact resistance of the lens, according to the FDA21CFR 801.410 standard.
Table 2 table of performance test results
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The optical cement for sticking glass is characterized in that: the paint is prepared from the following components in percentage by weight: 30-40% of polyurethane, 10-30% of epoxy resin, 10-25% of fully oxidized petroleum resin, 5-15% of carbamate, 1-10% of acrylic resin, 1-10% of ethyl acetate, 1-10% of acetone and 1-10% of polyester acrylate UV resin.
2. The optical cement for pasting glass according to claim 1, wherein: the paint is prepared from the following components in percentage by weight: the paint is prepared from the following components in percentage by weight: 32-38% of polyurethane, 15-25% of epoxy resin, 15-23% of fully oxidized petroleum resin, 5-15% of carbamate, 1-5% of acrylic resin, 2-8% of ethyl acetate, 2-8% of acetone and 1-8% of polyester acrylate UV resin.
3. The optical cement for pasting glass according to claim 2, wherein: the paint is prepared from the following components in percentage by weight: 35% of polyurethane, 20% of epoxy resin, 20% of fully oxidized petroleum resin, 10% of urethane, 4% of acrylic resin, 5% of ethyl acetate, 3% of acetone and 3% of polyester acrylate UV resin.
4. A method for preparing an optical cement for pasting glass according to any one of claims 1 to 3, characterized in that: the method comprises the following steps:
step 1: weighing the raw materials according to the weight percentage of any one of claims 1 to 3, mixing the polyurethane, the epoxy resin and the full-oxidized petroleum resin, and uniformly stirring to obtain a mixture A;
step 2: adding carbamate into the mixture A obtained in the step 1, and uniformly stirring to obtain a mixture B;
and step 3: adding polyester acrylate UV resin into the mixture B obtained in the step 2, and uniformly stirring to obtain a mixture C;
and 4, step 4: and (3) adding acrylic resin, ethyl acetate and acetone into the mixture C obtained in the step (3), and uniformly stirring to obtain the optical adhesive for adhering glass.
5. The method for preparing the optical cement for pasting glass according to claim 4, which is characterized in that: the rotation speed of the stirring in the step 1 is 100-.
6. The method for preparing the optical cement for pasting glass according to claim 4, which is characterized in that: the rotation speed of stirring in the step 2 is 100-.
7. The method for preparing the optical cement for pasting glass according to claim 4, which is characterized in that: the rotation speed of stirring in the step 3 is 100-.
8. The method for preparing the optical cement for pasting glass according to claim 4, which is characterized in that: the rotation speed of the stirring in the step 4 is 100-.
9. The optical cement for bonding glass is prepared by the method for preparing the optical cement for bonding glass according to any one of claims 4 to 8.
10. The use of the optical cement for pasting glass according to claim 9, wherein: the glass adhesive is used for realizing the adhesive bonding of glass and other materials, and the other materials are glass or resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110255392.6A CN113004851A (en) | 2021-03-09 | 2021-03-09 | Optical adhesive for adhering glass and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110255392.6A CN113004851A (en) | 2021-03-09 | 2021-03-09 | Optical adhesive for adhering glass and preparation method and application thereof |
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| CN113004851A true CN113004851A (en) | 2021-06-22 |
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| CN202110255392.6A Pending CN113004851A (en) | 2021-03-09 | 2021-03-09 | Optical adhesive for adhering glass and preparation method and application thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2734413A1 (en) * | 1976-07-29 | 1978-05-03 | Nippon Oil Co Ltd | WATER-SOLUBLE COATING COMPOSITION FOR ELECTRIC DEPOSITION AND METHOD FOR THEIR MANUFACTURING |
| CN109031697A (en) * | 2018-09-20 | 2018-12-18 | 京钻（厦门）科技有限公司 | A kind of manufacture craft of hot pressing optical film and its hot pressing polarized lenses |
| CN109265968A (en) * | 2018-09-20 | 2019-01-25 | 京钻（厦门）科技有限公司 | It is a kind of can plastic cement formula and preparation method thereof |
-
2021
- 2021-03-09 CN CN202110255392.6A patent/CN113004851A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2734413A1 (en) * | 1976-07-29 | 1978-05-03 | Nippon Oil Co Ltd | WATER-SOLUBLE COATING COMPOSITION FOR ELECTRIC DEPOSITION AND METHOD FOR THEIR MANUFACTURING |
| CN109031697A (en) * | 2018-09-20 | 2018-12-18 | 京钻（厦门）科技有限公司 | A kind of manufacture craft of hot pressing optical film and its hot pressing polarized lenses |
| CN109265968A (en) * | 2018-09-20 | 2019-01-25 | 京钻（厦门）科技有限公司 | It is a kind of can plastic cement formula and preparation method thereof |
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