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A kind of diffusion film back coating liquid and its preparation method and application method

A diffusion film and back coating technology, which is applied in the direction of instruments, optical components, optics, etc., can solve the problems of poor wear resistance of the coating, and achieve high light transmittance, high temperature and high humidity resistance, high light transmittance, The effect of extending the service life

Active Publication Date: 2019-04-26
上海绘兰材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the main resin used is only conventional acrylate resin, the coating has poor wear resistance

Method used

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  • A kind of diffusion film back coating liquid and its preparation method and application method
  • A kind of diffusion film back coating liquid and its preparation method and application method
  • A kind of diffusion film back coating liquid and its preparation method and application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A diffusion film back coating liquid, including the following components in parts by mass:

[0052] 8 parts of main agent, 1 part of polyisocyanate curing agent and 10 parts of first organic solvent;

[0053] The main agent includes an acrylate resin solution, and the raw material components of the acrylate resin solution include, in parts by weight: 40 parts of monomers, 50 parts of a second organic solvent and 0.5 parts of an initiator;

[0054] The monomer is composed of methyl methacrylate, cyclohexyl methacrylate and glycidyl methacrylate in a mass ratio of 1:1:1; the first organic solvent is toluene; the second organic solvent is ethyl acetate, causing The agent is AIBN.

[0055] The preparation method of the diffusion film back coating solution provided in this embodiment includes the following steps:

[0056] (1) the monomer of formula amount, the initiator of 90% formula amount and the second organic solvent of formula amount are mixed, and the solution obtai...

Embodiment 2

[0065] A diffusion film back coating liquid, including the following components in parts by mass:

[0066] 10 parts of main agent, 2 parts of polyisocyanate curing agent and 5 parts of first organic solvent;

[0067] The main agent includes an acrylate resin solution, and the raw material components of the acrylate resin solution include, in parts by weight: 60 parts of a monomer, 40 parts of a second organic solvent and 2 parts of an initiator;

[0068] Wherein the monomer is composed of cyclohexyl methacrylate, glycidyl methacrylate and hydroxyethyl methacrylate in a mass ratio of 1:1:1; the first organic solvent is butanone; the second organic solvent is butanone, The initiator is BPO.

[0069] The preparation method of the diffusion film back coating solution provided in this embodiment includes the following steps:

[0070] (1) the monomer of formula amount, the initiator of 80% formula amount and the second organic solvent of formula amount are mixed, the solution obta...

Embodiment 3

[0079] A diffusion film back coating liquid, including the following components in parts by mass:

[0080] 9 parts of main agent, 1.5 parts of polyisocyanate curing agent and 8 parts of first organic solvent;

[0081] The main agent includes acrylate resin solution and auxiliary agent, 3% hindered phenolic light stabilizer and 3% cationic antistatic agent, respectively accounting for 0.5% of the mass of the acrylate resin solution;

[0082] The raw material components of the acrylate resin solution include in parts by weight: 50 parts of monomers, 45 parts of second organic solvent and 0.8 parts of initiator;

[0083] The monomer is composed of n-butyl methacrylate, hydroxyethyl methacrylate and methacrylic acid in a mass ratio of 1:1:1; the first organic solvent is a combination of toluene and ethyl acetate; the second organic solvent is butyl methacrylate The combination of ketone and butyl acetate, the initiator is LPO.

[0084] The preparation method of the diffusion fil...

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Abstract

The invention provides a diffusion membrane back coating solution, a preparation method and a use method thereof. The components of the diffusion film back coating solution include 8-10 parts of main agent, 1-2 parts of polyisocyanate curing agent and 5-10 parts of the first organic solvent in parts by mass; the main agent includes acrylate resin solution , the acrylate resin solution is prepared from 40-60 parts by weight of a specific monomer composition, 40-50 parts by weight of a second organic solvent and 0.5-2 parts by weight of an initiator. The diffusion membrane back coating solution is coated on the back of the diffusion membrane, and cured at 120-130° C. to obtain the diffusion membrane back coating. The coating prepared by the diffusion film back coating provided by the invention has suitable hardness, high adhesion, high scratch resistance, high light transmittance and high temperature and high humidity resistance.

Description

technical field [0001] The invention belongs to the technical field of coatings for optical films, and in particular relates to a diffusion film back coating liquid and a preparation method and use method thereof. Background technique [0002] Diffuser film is an optical film used in thin film transistor liquid crystal display (TFT-LCD) backlight modules. Its main function is to uniformly diffuse the light emitted by point or linear light sources through a coating with light diffusion. A surface light source is formed. When the diffusion film is finally applied, it should be cut into sheets for use. When cutting, the edges will produce powder, which will be adsorbed on the diffusion film sheet under the action of static electricity, which will affect the appearance quality; It will have an adsorption effect, and it is not easy to separate; when the sheet product is used, it is easy to cause scratches on the back due to friction. The usual method to solve the above problems...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/111G02B1/14G02B1/16C08F220/14C08F220/18C08F220/32C08F220/06C08F220/28
CPCG02B1/111G02B1/14G02B1/16C08F220/06C08F220/14C08F220/18C08F220/28C08F220/32C08F220/325C08F220/281C08F220/1804
Inventor 潘乐张宪锋金成日
Owner 上海绘兰材料科技有限公司