Antistatic UV solvent-free optical cement, preparation method thereof and touch display screen

An antistatic agent and antistatic technology, applied in the field of optical glue, can solve the problems of electrostatic adsorption, dust collection, cremation discharge, touch failure, burning, etc., and achieve the effect of eliminating static electricity, less process and better economic benefits

Active Publication Date: 2021-06-25
GUANGZHOU LUSHAN PHOTOVOLTAIC MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, materials such as TP and liquid crystal displays used for touch screens will generate static electricity accumulation. If the accumulated static electricity is not eliminated in time, it may lead to electrostatic adsorption, dust absorption, cremation discharge, etc., which will cause touch failure, and even burn and burn. explode

Method used

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  • Antistatic UV solvent-free optical cement, preparation method thereof and touch display screen
  • Antistatic UV solvent-free optical cement, preparation method thereof and touch display screen

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preparation example Construction

[0056] The present invention also provides a preparation method of the antistatic UV solvent-free optical glue, comprising the steps of:

[0057] After the mixture of each component is coated to form a film, UV curing is carried out.

[0058] In a specific embodiment of the present invention, the conditions of the ultraviolet curing include: the wavelength is 280-420nm, the energy is 500-5000mj / cm 2 .

[0059] In actual operation, the methods of coating and film formation include spray coating, blade coating, spin coating, etc., which can realize the uniform coating of the mixture of each component on the surface of the substrate. The substrate can be a conventional substrate, and the optical adhesive can be removed after curing.

[0060] The present invention also provides a touch display screen, including any one of the antistatic UV solvent-free optical glue.

Embodiment 1

[0062] The antistatic UV solvent-free optical adhesive of the present embodiment is mainly made of the following components in parts by weight:

[0063] 50 parts epoxy acrylate Miamer PS2500, 18 parts polyester acrylate Miamer SC6300, 30 parts tridecyl acrylate, 1.5 parts methyl benzoylformate, 0.3 parts vinyltriethoxysilane and 0.2 parts stearin Trimethyl quaternary ammonium hydrochloride.

[0064] The preparation method of described antistatic UV solvent-free optical glue, comprises the steps:

[0065] The above-mentioned components were mixed in proportion to prepare a mixed liquid, which was coated and cured by an ultraviolet lamp to obtain an optical adhesive (OCA) with a thickness of 50 μm. Among them, the conditions for UV curing include: using UV light with a wavelength of 280-420nm and an energy of 500mj / cm 2 .

Embodiment 2

[0067] The antistatic UV solvent-free optical adhesive of the present embodiment is mainly made of the following components in parts by weight:

[0068] 48 parts of epoxy acrylate Miamer PS4040, 20 parts of polyester acrylate Miamer PE110, 30 parts of caprolactone acrylate, 0.6 parts of 2-hydroxy-2-methylphenylpropan-1-one, 0.5 parts of dimethyl dimethyl oxysilane and 0.9 parts stearamidopropyl hydroxyethyl quaternary ammonium nitrate.

[0069] The preparation method of described antistatic UV solvent-free optical glue, comprises the steps:

[0070] The above-mentioned components were mixed in proportion to prepare a mixed solution, which was coated and cured by an ultraviolet lamp to obtain an optical adhesive (OCA) with a thickness of 75 μm. Among them, the conditions for UV curing include: using UV light with a wavelength of 280-420nm and an energy of 800mj / cm 2 .

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Abstract

The invention relates to the technical field of optical cement, in particular to an antistatic UV solvent-free optical cement, a preparation method thereof and a touch display screen. The antistatic UV solvent-free optical adhesive is mainly prepared from the following components in parts by weight: 20 to 50 parts of epoxy acrylate, 5 to 25 parts of polyester acrylate, 15 to 35 parts of an acrylic monomer, 0.2 to 2 parts of a photoinitiator, 0.3 to 1.5 parts of a tackifying coupling agent and 0.1 to 2 parts of an antistatic agent. According to the optical adhesive disclosed by the invention, a certain amount of antistatic agent is added and is matched with the other components, so that the adhesive property, the high light transmittance and the antistatic property are ensured to be considered at the same time.

Description

technical field [0001] The invention relates to the technical field of optical glue, in particular to an antistatic UV solvent-free optical glue, a preparation method thereof, and a touch display screen. Background technique [0002] From the structure of the screen, the screen can be roughly divided into three parts, from top to bottom are the protective glass, touch screen, and LCD screen. Glue is needed for bonding between these three parts. Generally speaking, two bonding is required, one bonding between the protective glass and the touch screen, that is, TP bonding; another bonding between the display screen and the touch screen Fit, that is, full fit. At present, the most mature application of glue for bonding is mainly optical glue (OCA). OCA optical glue is colorless and transparent, has a light transmittance of over 90%, can be cured at room temperature or medium temperature, and has small curing shrinkage. It is widely used in the lamination of touch screen TP, L...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/10C09J167/06C09J11/06
CPCC09J163/10C09J167/06C09J11/06C08L2201/04C08L2205/035C08L2205/025C08K2201/017C08L67/06C08K5/19C08K5/42C08K5/17
Inventor 阳志荣唐舫成汪加胜叶迪辉
Owner GUANGZHOU LUSHAN PHOTOVOLTAIC MATERIAL CO LTD
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