Damping protective film and preparation method thereof

A protective film and film layer technology, applied in the field of plastic processing, can solve the problems of complex production methods and high costs, and achieve the effects of preventing screen bursts, buffering impacts, and excellent scratch recovery

Inactive Publication Date: 2020-12-04
HUNAN SHANGXIN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent has a total of 6 layers, the production method is complicated and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Self-healing coating formula:

[0032] 45 parts of acrylic modified polyurethane, 12 parts of hexamethylene diisocyanate, 0.009 parts of defoamer BYK-012, 0.04 parts of acrylic leveling agent KEPERSURF-157, 6 parts of fluorotitanic acid, 50 parts of solvent, ten 0.05 part of sodium dialkylsulfonate, wherein the compounding weight ratio of water and ethyl acetate in the solvent is 1:9.

[0033] Wherein the preparation method of the polyurethane modified by acrylic acid is as follows:

[0034] Add 70 parts of epoxy resin E51, 15 parts of acrylic acid and 0.4 parts of triethylamine into the reactor, react at 95°C for 2 hours, then add 6 parts of hexamethylene diisocyanate, react at 85°C for 2 hours, and finally Acrylic modified polyurethane can be obtained by adding tripropylene glycol diacrylate.

[0035] Wherein the preparation method of the self-healing coating is as follows:

[0036] (1) Add 1 / 2 of the solvent into the stirred tank, add defoamer and acrylic modified...

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PUM

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Abstract

The invention discloses a damping protective film. The film comprises four layers, the first layer is a self-repairing coating, the second layer is a polyethylene glycol terephthalate film layer, thethird layer is an adhesive layer, and the fourth layer is a clutch film layer. The damping protective film has excellent shock absorption performance and scratch recovery performance, can effectivelybuffer impact, prevent a screen from bursting or prevent glass or a plastic panel from being broken and flying apart due to careless impact, reduces hidden damage to the glass panel, has a self-repairing function on fine scratches generated by hard objects, guarantees user safety, and is simple in structure, convenient to use and high in practicability. The damping protective film also has good fingerprint resistance and hydrophobicity, and can maintain the specific gloss and texture of the screen panel glass.

Description

technical field [0001] The invention belongs to the technical field of plastic processing, and in particular relates to a shock-absorbing protective film and a preparation method thereof. Background technique [0002] Shock-absorbing protective film is a kind of polymer protective film attached to the front and rear screens (glass or plastic) of mobile phones. Because this type of material has excellent shock absorption and scratch recovery, it can not only effectively buffer impact , prevent the screen from bursting, or accidentally hit the glass or plastic panel from breaking and flying, reduce the hidden damage of the glass panel, and also have a self-repairing function for minor scratches caused by hard objects to ensure user safety. In addition, it It also has good anti-fingerprint and water repellency, and can also maintain the unique luster and texture of screen panel glass. [0003] Chinese patent CN 201711397946.6 discloses a self-repairing shock-absorbing protecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09D175/14C09D5/16C09D7/20C08L67/02C08K13/02C08K5/134C08K5/10C08K3/36C08J5/18C08J7/04
CPCC08J5/18C08J2367/02C08J2475/14C08K3/36C08K5/10C08K5/1345C08K13/02C09D5/16C09D175/14C09J2467/006C09J2483/00C09D7/20C09J7/255C08J7/0427C08K5/42
Inventor 江敏
Owner HUNAN SHANGXIN NEW MATERIAL TECH CO LTD
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