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UV-curable polyolefin optical film and preparation method thereof

A technology of optical film and polyolefin, applied in the direction of film/sheet adhesives, adhesive additives, non-polymer adhesive additives, etc., which can solve the problems of poor insulation, poor water vapor barrier, and long-term use of electrodes, etc. problems, to achieve the effect of long service life, not easy to air bubbles, and low water vapor transmission rate

Active Publication Date: 2015-02-18
GUANGZHOU LUSHAN NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has certain advantages and can improve processing problems such as air bubbles, glue flow, and repairs. However, because it uses EVA substrate, which itself is an acidic substance, it may be corrosive to the electrode material and affect the long-term use of the electrode. It has poor water vapor barrier and poor insulation, so it needs further verification for use in LCD screens or touch screens

Method used

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  • UV-curable polyolefin optical film and preparation method thereof
  • UV-curable polyolefin optical film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Add 0.1 part of pentaerythritol triacrylate, 0.3 part of photoinitiator benzoin dimethyl ether, 1 part of co-crosslinking agent in 100 parts by weight of octene content of 62%, melting point of ethylene-octene copolymer of 41 ° C Triallyl isocyanurate, 0.05 parts of light stabilizer 2-(2'-hydroxy-5'-methylphenyl)-benzotriazole, 0.05 parts of antioxidant tris(nonylbenzene Base) phosphite, 1.0 parts of coupling agent γ-(methacryloyloxy)propyltrimethoxysilane, mixed uniformly by a mixer, put into a casting machine, and plasticized and extruded at 80°C out, stretching, pulling, and winding to make a film with a thickness of about 0.2mm.

Embodiment 2

[0031] Add 0.1 part of ditrimethylolpropane triacrylate, 2 parts of photoinitiator benzophenone, 0.5 part of Light stabilizer 2-(2'-hydroxy-5'-methylphenyl)-benzotriazole, 0.5 parts of antioxidant tris(nonylphenyl) phosphite, 0.6 parts of coupling agent γ-(Methacryloyloxy)propyltrimethoxysilane is uniformly mixed by a mixer, put into a tape casting machine, and plasticized, extruded, stretched, drawn, and rolled at 80°C to make a thickness About 0.2mm film.

Embodiment 3

[0033] Add 2 parts of pentaerythritol triacrylate, 2 parts of photoinitiator benzoin dimethyl ether, 1 part of co-crosslinking agent in 100 parts by weight of octene content of 55% and 52 ℃ of ethylene-octene copolymers Pentaerythritol tetraacrylate, 0.2 parts of light stabilizer 2-(2'-hydroxy-5'-methylphenyl)-benzotriazole, 0.2 parts of antioxidant tris(nonylphenyl)phosphite , mixed evenly by a mixer, put into a casting machine, plasticized, extruded, stretched, drawn, and rolled at 80°C to make a film with a thickness of about 0.2mm.

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Abstract

The invention discloses a UV-curable polyolefin optical film and a preparation method thereof. The UV-curable polyolefin optical film is prepared by pre-mixing 100 parts by weight of an ethylene / octene copolymer, 0.1-2 parts by weight of a hydroxyl acrylic monomer, 0.3-2 parts by weight of a photoinitiator, 0-1.0 part of an assistant crosslinker, 0.05-0.5 part by weight of a light stabilizer, 0.05-0.5 part by weight of an antioxidant and 0-1.0 part of a coupling agent by a cone-shaped blender and then performing tape casting. The UV-curable polyolefin optical film and the preparation method have the advantages that the process is simple, the processing is convenient, the operation is easy, the production efficiency is high, and the prepared UV-curable polyolefin optical film not only has the characteristics of being easy to process and capable of reworking, but also has an excellent water vapor barrier property, an excellent insulating property, an excellent adhesive property and excellent non-corrosion performance. When the UV-curable polyolefin optical film is used, the curing crosslinking can be completed through special UV-irradiation after laminating and prepressing.

Description

technical field [0001] The invention relates to a UV curable polyolefin optical film and a preparation method thereof, which is applied to lamination of touch screens or liquid crystal display screens and belongs to the field of packaging of electronic products. Background technique [0002] In recent years, the electronics industry has developed rapidly, among which touch screens and liquid crystal displays are more and more widely used, and OCA and LOCA are widely used as optical adhesives in their processing and production. Simply put, OCA optical adhesive is a kind of transparent double-sided adhesive tape, which has a good effect and is relatively mature in application, but it has the disadvantages of difficult lamination and high precision requirements, especially for some large-area touch screens, which are very easy to produce Air bubbles cannot be repaired. LOCA is a liquid optical adhesive, generally a UV-curable acrylate product, which is also suitable for bondin...

Claims

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Application Information

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IPC IPC(8): C09J7/00C09J123/08C09J123/20C09J11/06
Inventor 李伟博余鹏唐舫成汪加胜
Owner GUANGZHOU LUSHAN NEW MATERIALS
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