Special adhesive for optical film

A technology of optical films and modifiers, applied in adhesives, non-polymer adhesive additives, adhesive additives, etc.

Inactive Publication Date: 2021-09-14
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

[0003] The current optical adhesives mainly use silicone rubber, acrylic resin, unsaturated polyester, polyurethane, epoxy resin, etc. as the main components, and some processing agents are added during preparation to improve their optical properties. Can not solve the problems of scratches and falling off during use

Method used

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  • Special adhesive for optical film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A special adhesive for optical films, prepared from components comprising the following parts by weight:

[0043] 46 parts of o-phenylphenoxyethyl acrylate,

[0044] 32 parts of ethoxylated bisphenol A dimethacrylate,

[0045] Initiator 184 2 parts,

[0046] 4 parts of silicone additives,

[0047] 6 parts of tetrahydrofurfuryl alcohol acrylate,

[0048] 7 parts of trimethylol cyclohexyl acrylate,

[0049] 8 parts of bisphenol fluorene acrylate,

[0050] Modifier 3 parts.

[0051] The preparation method of described organosilicon additive comprises the steps:

[0052] S1. Mix lithium hydroxide and octamethylcyclotetrasiloxane, react at 155°C for 1.5h under the protection of nitrogen, and obtain auxiliary agent I after cooling; the lithium hydroxide and octamethylcyclotetrasiloxane The mass ratio of alkanes is 1:220.

[0053] S2. Add octamethylcyclotetrasiloxane, additive I, hexamethylcyclotrisiloxane, and trimethylbenzyl ammonium chloride to the high-shear emulsi...

Embodiment 2

[0060]A special adhesive for optical films, prepared from components comprising the following parts by weight:

[0061] 52 parts of o-phenylphenoxyethyl acrylate,

[0062] 4 parts ethoxylated bisphenol A dimethacrylate,

[0063] Initiator 1173 3 parts,

[0064] 5 parts of silicone additives,

[0065] 7 parts of tetrahydrofurfuryl alcohol acrylate,

[0066] 7 parts of trimethylol cyclohexyl acrylate,

[0067] 7 parts of bisphenol fluorene acrylate,

[0068] Modifier 4 parts.

[0069] The preparation method of described organosilicon additive comprises the steps:

[0070] S1. Mix lithium hydroxide and octamethylcyclotetrasiloxane, react at 158°C under nitrogen protection for 1.5h, and obtain auxiliary agent I after cooling; the lithium hydroxide and octamethylcyclotetrasiloxane The mass ratio of alkanes is 1:240.

[0071] S2. Add octamethylcyclotetrasiloxane, additive I, hexamethylcyclotrisiloxane, and trimethylbenzyl ammonium chloride to the high-shear emulsifier in seq...

Embodiment 3

[0078] A special adhesive for optical films, prepared from components comprising the following parts by weight:

[0079] 41 parts o-phenylphenoxyethyl acrylate,

[0080] 30 parts of ethoxylated bisphenol A dimethacrylate,

[0081] Initiator 184 2 parts,

[0082] 3 parts of silicone additives,

[0083] 6 parts of tetrahydrofurfuryl alcohol acrylate,

[0084] 6 parts of trimethylol cyclohexyl acrylate,

[0085] 5 parts of bisphenol fluorene acrylate,

[0086] Modifier 2 parts.

[0087] The preparation method of described organosilicon additive comprises the steps:

[0088] S1. Mix lithium hydroxide and octamethylcyclotetrasiloxane, react at 150°C for 2 hours under nitrogen protection, and obtain auxiliary agent I after cooling; the lithium hydroxide and octamethylcyclotetrasiloxane The mass ratio is 1:210.

[0089] S2. Add octamethylcyclotetrasiloxane, additive I, hexamethylcyclotrisiloxane, and trimethylbenzyl ammonium chloride to the high-shear emulsifier in sequence, ...

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Abstract

The invention discloses a special adhesive for an optical film, and belongs to the technical field of optical adhesive film materials. The special adhesive for the optical film is prepared from the following components in parts by weight: 30 to 60 parts of o-phenyl phenoxyethyl acrylate, 20 to 40 parts of ethoxylated bisphenol A dimethacrylate, 1 to 5 parts of an initiator, 1 to 10 parts of an organic silicon additive, 5 to 10 parts of tetrahydrofurfuryl alcohol acrylate, 5 to 10 parts of trihydroxymethyl cyclohexyl acrylate, 0 to 10 parts of bisphenol fluorene acrylate, and 0 to 10 parts of a modifier. The special adhesive for the optical film has the advantages of very high light transmittance, strong adhesive force, high peel strength, excellent mechanical property and excellent anti-falling performance.

Description

technical field [0001] The invention belongs to the technical field of optical adhesive film materials, and in particular relates to a special adhesive for optical films. Background technique [0002] Optical adhesive is a special adhesive used for bonding optically transparent components (such as prisms, lenses, mirrors), and is one of the raw materials for important touch screens. At present, the application fields of optical adhesives mainly include: electronic paper, transparent device bonding, projection screen assembly, aerospace or military optical device assembly, display assembly, lens assembly, resistive touch screen, capacitive touch screen, panel, ICON and glass and Polymer Bonding of plastic materials such as carbonates. Since optical glue is used in special equipment such as optical components, its performance requirements are extremely high. In addition to a certain bonding strength, it should also have high light transmittance, high adhesion, refractive inde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/04C09J11/06C09J11/08
CPCC09J4/06C09J11/04C09J11/06C09J11/08
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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