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Optical adhesive

A technology of optical adhesives and sols, applied in the direction of adhesives, adhesive additives, non-polymer adhesive additives, etc., can solve problems such as poor refractive index, affecting quality, and excessive thickness of the adhesive film, and achieve improved anti-yellowing Variable effect, fast curing speed, and improved refractive index

Inactive Publication Date: 2021-08-13
广西向东电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing optical adhesives have poor refractive index, which often leads to excessive thickness of the adhesive film and affects the quality

Method used

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  • Optical adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An optical adhesive comprising the following components in parts by weight: 30 parts of o-phenylphenoxyethyl acrylate, 20 parts of ethoxylated bisphenol A dimethacrylate, 10 parts of tetrahydrofurfuryl alcohol acrylate, 10 parts of trimethylol cyclohexyl acrylate, 8 parts of bisphenol fluorene acrylate, 3 parts of organic-inorganic hybrid acrylate, 0.5 parts of antioxidant, 2 parts of initiator, and 1 part of silicone additive.

[0030] The organic-inorganic hybrid acrylate nano-silica organic-inorganic hybrid acrylate, nano-titanium dioxide organic-inorganic hybrid acrylate and nano-zirconia organic-inorganic hybrid acrylate.

[0031] The preparation method of the nano-silica organic-inorganic hybrid acrylate or nano-zirconia organic-inorganic hybrid acrylate is: mixing acrylate resin, nano-silica sol / nano-titania sol / nano-zirconia sol , and stirred for 2 hours to obtain nano-silica organic-inorganic hybrid acrylate or nano-zirconia organic-inorganic hybrid acrylate. ...

Embodiment 2

[0035] An optical adhesive comprising the following components in parts by weight: 30 parts of o-phenylphenoxyethyl acrylate, 20 parts of ethoxylated bisphenol A dimethacrylate, 10 parts of tetrahydrofurfuryl alcohol acrylate, 10 parts of trimethylol cyclohexyl acrylate, 8 parts of bisphenol fluorene acrylate, 3 parts of organic-inorganic hybrid acrylate, 0.5 parts of antioxidant, 2 parts of initiator, and 1 part of silicone additive.

[0036] The organic-inorganic hybrid acrylate is nano-silica organic-inorganic hybrid acrylate, nano-titanium dioxide organic-inorganic hybrid acrylate and nano-zirconia organic-inorganic hybrid acrylate.

[0037] The preparation method of the nano-silica organic-inorganic hybrid acrylate or nano-zirconia organic-inorganic hybrid acrylate is: mixing acrylate resin, nano-silica sol / nano-titania sol / nano-zirconia sol , and stirred for 2 hours to obtain nano-silica organic-inorganic hybrid acrylate or nano-zirconia organic-inorganic hybrid acrylate...

Embodiment 3

[0042] An optical adhesive comprising the following components in parts by weight: 30 parts of o-phenylphenoxyethyl acrylate, 20 parts of ethoxylated bisphenol A dimethacrylate, 10 parts of tetrahydrofurfuryl alcohol acrylate, 10 parts of trimethylol cyclohexyl acrylate, 8 parts of bisphenol fluorene acrylate, 3 parts of organic-inorganic hybrid acrylate, 0.5 parts of antioxidant, 2 parts of initiator, and 1 part of silicone additive.

[0043] The antioxidant is three (4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) isocyanuric acid and tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl ) propionate] pentaerythritol ester. The organosilicon additive is KH560. The initiator is 2-hydroxy-2-methyl-1-phenyl-1-propanone.

[0044] The organic-inorganic hybrid acrylate is nano-silica organic-inorganic hybrid acrylate, nano-titanium dioxide organic-inorganic hybrid acrylate and nano-zirconia organic-inorganic hybrid acrylate.

[0045] The preparation method of the nano-silica organic-inorga...

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Abstract

The invention provides an optical adhesive, and relates to the technical field of optical adhesives. The optical adhesive is prepared from, by weight, 30 to 40 parts of o-phenyl phenoxyethyl acrylate, 20 to 30 parts of ethoxylated bisphenol A dimethacrylate, 10 to 20 parts of tetrahydrofurfuryl alcohol acrylate, 10 to 20 parts of trihydroxymethyl cyclohexyl acrylate, 5 to 10 parts of bisphenol fluorene acrylate, 1 to 5 parts of organic-inorganic hybrid acrylate, 0.1 to 1 part of an antioxidant, 1 to 5 parts of an initiator and 0.5 to 2 parts of an organic silicon additive. The adhesive adopts a plurality of monomers with high refractive indexes, and the monomers, the coupling agent, the photoinitiator and the antioxidant generate a synergistic effect, so that the uniformity of a curing reaction of the liquid optical adhesive and the refractive index after curing are improved, and the liquid optical adhesive has good refractive index, hardness, mechanical properties and good yellowing resistance.

Description

【Technical field】 [0001] The invention relates to the technical field of optical adhesives, in particular to an optical adhesive. 【Background technique】 [0002] In recent years, with the development of the electronics industry, there are more and more types of optical electronic products, and optical adhesives, as a supporting product in the electronics industry, are in increasing demand, but the requirements are also getting higher and higher. Optical adhesives are a class of polymer substances that have similar optical properties to optical parts and have good bonding properties. It can bond two or more optical parts into an optical component that can meet the requirements of optical design, such as bonding optical polarization elements such as filters and polarizers, and coating adhesives for optical fibers. Many high-end optical adhesives have put forward higher requirements for optical adhesives: colorless and transparent, with a light transmittance of more than 90% i...

Claims

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Application Information

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IPC IPC(8): C09J4/02C09J4/06C09J11/04C09J11/06
CPCC09J4/06C09J11/04C09J11/06
Inventor 朱秋宇朱东朱佳新
Owner 广西向东电子科技有限公司
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