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Coating glue, protective film and preparation method of protective film

A technology of protective film and glue, applied in the direction of adhesive, film/flake adhesive, adhesive type, etc., can solve the problems of eye fatigue, unsightly screen, affecting eyesight, etc., and achieve the effect of high transparency

Active Publication Date: 2020-11-13
东莞市勤乐电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, the above-mentioned protective film is prone to serious iridescent phenomenon, that is, the protective film presents a large number of rainbow-like reflections under light.
The rainbow pattern will not only make the screen unsightly and affect the visual effect, but also affect the light transmittance, thereby affecting people's vision and causing eye fatigue

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of protective film, preparation method comprises the following steps:

[0041] Step 1, preparing the coating glue: the raw materials used include the following components in parts by weight: 1 part of acrylic glue, 8 parts of ethyl acetate, and 1 part of curing agent. The preparation method includes the following steps: adding acetic acid to the acrylic glue In ethyl ester, stir until the solution is transparent crystal; Add the curing agent to the solution obtained in step 1, stir until the curing agent is completely dissolved, and get the coating glue; wherein, the ratio of the parts by weight of acrylic glue to ethyl acetate is 1: 8.

[0042] Step 2, prepare the protective film: choose a PE film with a thickness of 0.08mm as the base film, apply the coating glue obtained in step 1 on the surface of the base film, and after the coating glue solidifies and matures, the protective film is obtained, and the solidification and curing temperature The temperature is...

Embodiment 2

[0044] A kind of protective film, preparation method comprises the following steps:

[0045] Step 1, preparing the coating glue: the raw materials used include the following components in parts by weight: 1.5 parts of acrylic glue, 5 parts of ethyl acetate, and 3 parts of curing agent. The preparation method includes the following steps: adding acetic acid to the acrylic glue In ethyl ester, stir until the solution is transparent crystal; Add the curing agent to the solution obtained in step 1, stir until the curing agent is completely dissolved, and get the coating glue; wherein, the ratio of the parts by weight of acrylic glue to ethyl acetate is 1: 3.3.

[0046] Step 2, prepare the protective film: choose a PE film with a thickness of 0.08mm as the base film, apply the coating glue obtained in step 1 on the surface of the base film, and after the coating glue solidifies and matures, the protective film is obtained, and the solidification and curing temperature The temperat...

Embodiment 3

[0048] A kind of protective film, preparation method comprises the following steps:

[0049] Step 1, preparing the coating glue: the raw materials used include the following components in parts by weight: 2 parts of acrylic glue, 3 parts of ethyl acetate, and 5 parts of curing agent. The preparation method includes the following steps: adding the acrylic glue to acetic acid In ethyl ester, stir until the solution is transparent crystal; Add the curing agent to the solution obtained in step 1, stir until the curing agent is completely dissolved, and get the coating glue; wherein, the ratio of the parts by weight of acrylic glue to ethyl acetate is 1: 1.5.

[0050] Step 2, prepare the protective film: choose a PE film with a thickness of 0.08mm as the base film, apply the coating glue obtained in step 1 on the surface of the base film, and after the coating glue solidifies and matures, the protective film is obtained, and the solidification and curing temperature The temperatur...

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Abstract

The invention discloses coating glue, a protective film and a preparation method of the protective film, and belongs to the technical field of protective films. The coating glue is prepared from the following raw materials in parts by weight: 1-2 parts of acrylic glue, 3-8 parts of ethyl acetate, 1-5 parts of a curing agent and 0.05-0.15 part of a modifier. The preparation method of the modifier comprises the following steps: mixing 1 part by weight of nano cellulose, 0.05-0.1 part by weight of a silane coupling agent, 0.02-0.05 part by weight of alkenyl succinic anhydride and 5-10 parts by weight of a solvent, and carrying out stirring and ultrasonic treatment at 40-50 DEG C for 10-15 minutes to obtain the modifier. The preparation method of the coating glue containing the modifier comprises the following steps: adding the acrylic glue into the ethyl acetate, and stirring until the solution is in a transparent crystal form; adding the modifier, and carrying out stirring and ultrasonictreatment at 40-50 DEG C for 10-15 min; and adding the curing agent, and stirring until the curing agent is completely dissolved to obtain the coating glue. And by coating the surface of a base filmwith the coating glue, and solidifying and curing the coating glue, the protective film is obtained. According to the invention, the rainbow pattern phenomenon of the protective film is improved, andthe prepared protective film has high transparency.

Description

technical field [0001] The present application relates to the technical field of protective films, in particular to a coating glue, a protective film and a preparation method thereof. Background technique [0002] Screens of digital products such as mobile phones are usually attached with a protective film. The protective film has a protective effect on all kinds of screens, preventing damage such as scratches and other damages that may be caused to the screen by external mechanical force. With the rapid development and popularization of digital products such as mobile phones, "film sticking" has become a popular industry, and at the same time, it has also promoted the development of protective films. [0003] The protective film used in the above mobile phone and other digital products includes a base film and an adhesive layer. The base film is usually made of PE, PET and other materials. The adhesive layer is formed by curing the glue coated on the base film. The role of...

Claims

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Application Information

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IPC IPC(8): C09J133/12C09J11/06C09J11/08C09J7/30C09J7/24
CPCC09J133/12C09J11/06C09J11/08C09J7/30C09J7/243C09J2423/046C08L1/02C08K5/1539C08K5/54
Inventor 伏利军牟世洪
Owner 东莞市勤乐电子有限公司