Method for preparing gradient polymer porosity broadband antireflection film

A technology of gradient porosity and high polymer, which is applied in the field of preparation of high polymer gradient porosity broadband anti-reflection film, to achieve the effect of high transmission and simple production method

Inactive Publication Date: 2010-04-28
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the polymer anti-reflection film, it has not been found in the preparation process that it can satisfy the broadband anti-reflection effect in the visible light region or the near-infrared light region at the same time.

Method used

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  • Method for preparing gradient polymer porosity broadband antireflection film
  • Method for preparing gradient polymer porosity broadband antireflection film
  • Method for preparing gradient polymer porosity broadband antireflection film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) OTS modification of glass.

[0018] Soak the cleaned glass in 0.1% OTS n-hexane solution by volume fraction for 5 minutes, then clean the soaked glass with pure n-hexane, and blow dry the glass surface.

[0019] (2) tetrahydrofuran and toluene are formed into a mixed solvent, and the volume percentage of tetrahydrofuran in the mixed solvent is 10%, and the high polymer is added in the mixed solvent to prepare a solution with a total concentration of 27 mg / ml; the high polymer is PS- b-PMMA and a blend of PMMA, wherein the homopolymer PMMA accounts for 20% of the total mass of the high polymer.

[0020] (3) Spin-coat the solution prepared in step (2) on the glass prepared in step (1) to form a high polymer film on the glass surface. The polymer film was irradiated with ultraviolet light for 3 hours to degrade the PMMA therein, then soaked in acetic acid for 1 hour, and finally the glass with the polymer film was cleaned with deionized water, and the glass surface wa...

Embodiment 2

[0022] (1) OTS modification of ITO glass.

[0023] Soak the cleaned ITO glass in 0.05% OTS n-hexane solution for 10 minutes, then clean the impregnated ITO glass with pure n-hexane, and dry the ITO glass surface.

[0024] (2) tetrahydrofuran and toluene are formed into a mixed solvent, and the volume percentage of tetrahydrofuran in the mixed solvent is 2%, and the high polymer is added into the mixed solvent to prepare a solution with a total concentration of 32 mg / ml; the high polymer PS-b -PMMA and a blend of PMMA, wherein the homopolymer PMMA accounts for 5% of the total mass of the high polymer.

[0025] (3) Spin-coat the solution prepared in step (2) on the ITO glass prepared in step (1) to form a polymer film on the surface of the ITO glass. The polymer film was irradiated with ultraviolet light for 2 hours to degrade the PMMA in it, then soaked in acetic acid for 0.5 hour, and finally the ITO glass with the polymer film was cleaned with deionized water, and the surfac...

Embodiment 3

[0027] (1) OTS modification of glass.

[0028] Soak the cleaned glass in 0.15% OTS n-hexane solution by volume fraction for 3 minutes, then clean the soaked glass with pure n-hexane, and blow dry the glass surface.

[0029] (2) tetrahydrofuran and toluene are used to form a mixed solvent, and the volume percentage of tetrahydrofuran in the mixed solvent is 20%, and the high polymer is added in the mixed solvent to prepare a solution with a total concentration of 36 mg / ml; the high polymer is PS- b-PMMA and a blend of PMMA, wherein the homopolymer PMMA accounts for 10% of the total mass of the high polymer.

[0030] (3) Spin-coat the solution prepared in step (2) on the glass prepared in step (1) to form a high polymer film on the glass surface. The polymer film was irradiated with ultraviolet light for 3 hours to degrade the PMMA therein, then soaked in acetic acid for 1.5 hours, and finally the glass with the polymer film was cleaned with deionized water, and the glass surfa...

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Abstract

The invention relates to a method for preparing a gradient polymer porosity broadband antireflection film. The blend of the block polymer of polystyrene and polymethylmethacrylate and the homopolymer of polymethylmethacrylate is used to form the gradient polymer porosity broadband antireflection film on a substrate modified by cctadecylchlorosilane. High transmission which is over 97% at visible light areas and near-infrared light areas can be achieved simultaneously. Such a process has the advantages of simple preparation method, no need of complex post-treatment procedures and great easiness for realizing all-band high transmission.

Description

technical field [0001] The invention relates to the preparation of a broadband anti-reflection film, in particular to a preparation method of a high polymer gradient porosity broadband anti-reflection film. Background technique [0002] When light is transmitted between different media in an optical system, partial transmission, scattering and reflection will occur at each interface. The clarity of the system's image. From the point of view of energy, for any transparent medium, not all the energy of light passes through the interface, but a part of it always reflects back from the interface. With the development and popularization of liquid crystal display products, anti-reflection film has become an essential product for pursuing higher visual effects. Display products of all sizes that need to pass through the window screen to allow the eyes to receive information, including polarizing films of liquid crystal displays, upper panels of touch panels, front panels of proje...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/42
Inventor 韩艳春李晓
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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