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UV (ultraviolet) barrier optical adhesive and preparation method thereof

An adhesive and optical technology, applied in the field of materials, can solve the problems of easy aging of optical devices, affecting the service life and visual effect, unable to block ultraviolet rays, etc., and achieve the effect of solving easy aging, reducing transmittance and high peel strength.

Inactive Publication Date: 2022-04-08
泰州亚德胶粘制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since general acrylate adhesives cannot block ultraviolet rays, optical devices that are sensitive to ultraviolet rays are prone to aging, affecting service life and visual effects

Method used

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  • UV (ultraviolet) barrier optical adhesive and preparation method thereof
  • UV (ultraviolet) barrier optical adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The preparation of embodiment 1 formula (I) compound

[0035]

[0036] Dissolve 2,4-dichloro-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine (70g, 237.2mmol) in 300mL tetrahydrofuran, add 3', 5'-diphenylbiphenyl-4-amine (83.9g, 261mmol), sodium carbonate (76g, 712mmol), heated to reflux for 72h. The reaction solution was filtered, and the filtrate was purified by column chromatography to obtain the title compound. MS m / z (ESI): 865.2[M+H] + .

Embodiment 2

[0038] The UV blocking optical adhesive, the raw materials according to parts by weight include:

[0039] 60 parts of polyurethane acrylate; 40 parts of the compound shown in formula (I) prepared in Example 1; 10 parts of titanium dioxide; 10 parts of 6-hexanediol diacrylate; 5 parts of 1-hydroxycyclohexyl phenyl ketone; 8 parts of pentaerythritol tetraphenylpropionate.

[0040] Weigh polyurethane acrylate, the compound represented by formula (I) prepared in Example 1, titanium dioxide, and 6-hexanediol diacrylate respectively according to the above weight percentages and add them to the reaction kettle, and stir at room temperature for 2 hours; according to the above Weigh 1-hydroxycyclohexyl phenyl ketone and pentaerythritol tetraphenylpropionate in percentage by weight, and stir for 5 hours until they are evenly mixed; use a high-speed centrifugal defoamer to defoam again, with a defoaming rate of 2500r / min. The time is 3-5 minutes, and the target optical adhesive is obtai...

Embodiment 3

[0042] The UV blocking optical adhesive, the raw materials according to parts by weight include:

[0043] 30 parts of polyurethane acrylate; 30 parts of the compound shown in formula (I) prepared in Example 1; 20 parts of titanium dioxide; 10 parts of 6-hexanediol diacrylate; 5 parts of 1-hydroxycyclohexyl phenyl ketone; 5 parts of pentaerythritol tetraphenylpropionate.

[0044] Weigh polyurethane acrylate, the compound represented by formula (I) prepared in Example 1, titanium dioxide, and 6-hexanediol diacrylate respectively according to the above weight percentages and add them to the reaction kettle, and stir at room temperature for 2 hours; according to the above Weigh 1-hydroxycyclohexyl phenyl ketone and pentaerythritol tetraphenylpropionate in percentage by weight, and stir for 5 hours until they are evenly mixed; use a high-speed centrifugal defoamer to defoam again, with a defoaming rate of 2300r / min. The time is 3-5 minutes, and the target optical adhesive is obtai...

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Abstract

The invention provides a UV (ultraviolet) barrier optical adhesive and a preparation method thereof, and the UV barrier optical adhesive is characterized by comprising the following components in parts by weight: 10-60 parts of urethane acrylate; 10-60 parts of a compound of formula (I); 1-20 parts of a filler; 10 to 40 parts of a reactive diluent; 1 to 10 parts of a photoinitiator; and 1-8 parts of an antioxidant. According to the optical adhesive disclosed by the invention, the compound which has a novel structure and is shown in the formula (I) is designed and synthesized as the ultraviolet absorbent, so that the transmittance of the optical adhesive to ultraviolet rays can be reduced, and the problem that an optical device sensitive to the ultraviolet rays is easy to age is solved. In addition, the optical adhesive provided by the invention has high UV peel strength. .

Description

technical field [0001] The invention belongs to the field of materials, in particular to a UV blocking optical adhesive and a preparation method thereof. Background technique [0002] Adhesive refers to the substance that binds the adhered substances together by bonding. A class of organic or inorganic, natural or synthetic substances that can connect parts or materials of the same or different materials together and have sufficient strength after curing. The optical adhesive is a special type of glue, which is characterized by colorless or light-colored transparency, a light transmittance of more than 90% in the specified light wave band, good bonding strength, and can be cured at room temperature or medium temperature. Curing shrinkage is small and so on. [0003] Optical adhesives are widely used in the electronics industry, especially in the field of optical displays. Optical displays are used in a variety of applications, such as liquid crystal displays, plasma displ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/14C09J11/06C07D401/04
Inventor 何炎昌唐朝富
Owner 泰州亚德胶粘制品有限公司
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