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A kind of environment-friendly diffusion membrane and preparation method thereof

A technology of diffusion film and diffusion layer, which is applied to instruments, optics, diffusion elements, etc., can solve the problems of high VOC, slow curing rate, uneven dispersion of diffusion particles, etc., and achieves the effect of simple process and easy operation.

Active Publication Date: 2020-09-25
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem of high VOC in the production process of solvent-based glue used in the current industry diffusion film, the present invention provides an environment-friendly diffusion film and its preparation method
And the environment-friendly diffusion film provided by the present invention overcomes the technical problems of slow curing rate and uneven dispersion of diffusion particles in the water-based glue system when the current water-based glue system is applied on the diffusion film

Method used

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  • A kind of environment-friendly diffusion membrane and preparation method thereof
  • A kind of environment-friendly diffusion membrane and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0183] The environment-friendly diffusion film provided by the present invention, the environment-friendly diffusion film comprises a transparent substrate layer, a diffusion layer and a protective layer, the upper surface of the transparent substrate layer is provided with a diffusion layer, and the lower surface of the transparent substrate layer is provided with a protective layer ; The diffusion layer includes modified diffusion beads, and the protective layer includes modified anti-adsorption particles. During the preparation process, the diffusion layer and the protective layer are respectively configured as a water-based glue coating solution for the diffusion layer and a water-based glue coating solution for the protective layer.

[0184] The water-based glue coating solution for the diffusion layer includes 100 parts by weight of a water-based glue system; 60 parts by weight of modified diffusion beads and 50 parts by weight of deionized water. The water-based glue co...

Embodiment 2

[0190] The environment-friendly diffusion membrane provided in Example 1, wherein the water-based glue coating solution for the diffusion layer includes 100 parts by weight of a water-based glue system; 150 parts by weight of modified diffusion microbeads and 100 parts by weight of deionized water. The water-based glue coating solution for the protective layer includes 100 parts by weight of a water-based glue system; 1.5 parts by weight of modified anti-adsorption particles and 40 parts by weight of deionized water.

[0191] The proportion of the water-based glue system is: water-based polyol oligomer polyether triol: 90 parts by weight; water-based curing agent modified aliphatic polyisocyanate: 6 parts by weight; acid catalyst p-toluenesulfonic acid: 2 parts by weight; water-based Defoamer BYK-023: 0.2 parts by weight; water-based wetting agent BYK-3560: 1 part by weight; pH regulator γ-butyrolactam: 0.8 parts by weight. Wherein the water-based curing agent modifies the ali...

Embodiment 3

[0196] The environment-friendly diffusion membrane provided in Example 1, wherein the water-based glue coating solution for the diffusion layer includes 100 parts by weight of a water-based glue system; 80 parts by weight of modified diffusion microbeads and 60 parts by weight of deionized water. The water-based glue coating solution for the protective layer includes 100 parts by weight of a water-based glue system; 0.5 parts by weight of modified anti-adsorption particles and 38 parts by weight of deionized water.

[0197] The proportion of the water-based glue system is: water-based polyol oligomer polyether diol: 90 parts by weight; water-based curing agent modified aliphatic polyisocyanate: 7.5 parts by weight; acidic catalyst ammonium phosphate: 1.5 parts by weight; water-based defoaming Agent BYK-011: 0.3 parts by weight; water-based wetting agent TEGO-240: 0.3 parts by weight; pH regulator ethanolamine: 0.4 parts by weight. Wherein the water-based curing agent modifies ...

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Abstract

The invention relates to the field of optical thin films, in particular to an environment-friendly diffusion film and a method for preparing the same. By the aid of the environment-friendly diffusionfilm and the method, the problem of large quantities of VOC (volatile organic compounds) generated in procedures for producing existing diffusion films by the aid of solvent type glue in current industries can be solved. The environment-friendly diffusion film comprises a transparent base material layer, a diffusion layer and a protective layer. The diffusion layer is arranged on the upper surfaceof the transparent base material layer, and the protective layer is arranged on the lower surface of the transparent base material layer; the diffusion layer comprises modified diffusion micro-spheres, the protective layer comprises modified adsorption-resistant particles, the diffusion layer contains acid catalysts, and the protective layer contains acid catalysts. The environment-friendly diffusion film and the method have the advantages that VOC and organic solvent emission can be prevented when the environment-friendly diffusion film is produced, and the technical difficult problems of low solidification speeds when the existing waterborne glue systems are applied to diffusion films and uneven dispersion of diffusion particles in the waterborne glue systems can be solved by the aid ofthe environment-friendly diffusion film and the method.

Description

technical field [0001] The invention relates to the field of optical thin films, in particular to an environment-friendly diffusion film and a preparation method thereof. Background technique [0002] Optical film is a film with optical functions that converts point and line light sources into line and surface light sources. When the light passes through the optical film, the light will undergo many phenomena of refraction, reflection and scattering, thus causing corresponding optical effects, which belongs to the field of optical display. Optical films are widely used in backlight modules of flat panel displays and new lighting sources, such as TVs, computer monitors, notebook computers, mobile phones, digital cameras, MP4 players, GPS navigators, and various daily and industrial lighting sources. [0003] With the increasing application of flat panel display in daily life, the market demand for optical films is also increasing. At present, solvent-based glue is used in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/02
CPCG02B5/0226G02B5/0268G02B5/0278
Inventor 李刚任远飞薛永富崔钧唐海江张彦
Owner NINGBO EXCITON TECH