Fluorine-containing polymer, waterproof and oil-proof treating agent, preparation method of waterproof and oil-proof treating agent and protection film

A polymer and treatment agent technology, applied in the direction of coating, etc., can solve problems such as insufficient surface hardness, unsatisfactory use effect, and scratches

Inactive Publication Date: 2017-01-04
GUANGZHOU LEHMAN BROS ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of moving, the surface of the screen is easily damaged by scratches, impacts or vibrations, or in the process of touching, the surface of the screen is easily affected by grease and dirt
[0003] Most of the existing protective film products on the market are mostly made of glass, the surface hardness is not enough, and the surface is not waterproof and oil-proof, so it is easy to be scratched, scratched or stained with grease marks , poor user experience
Of course, there are also some protective films that have waterproof and oil-proof effects, but this kind of protective film is not ideal. In the process of making the film layer, the curing temperature for forming a waterproof and oil-proof film layer is high, high energy consumption and high cost.
[0004] In the past, fluorine-containing acrylate polymers were also used as active ingredients of water and oil repellents, but in actual use, their hydrophobicity was often too high, causing various problems in performance, and the use effect was not satisfactory

Method used

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  • Fluorine-containing polymer, waterproof and oil-proof treating agent, preparation method of waterproof and oil-proof treating agent and protection film
  • Fluorine-containing polymer, waterproof and oil-proof treating agent, preparation method of waterproof and oil-proof treating agent and protection film
  • Fluorine-containing polymer, waterproof and oil-proof treating agent, preparation method of waterproof and oil-proof treating agent and protection film

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0107] The preparation method of this water and oil repellent treatment agent is: under the situation that polymerization initiator and chain transfer agent exist simultaneously, fluorine-containing monomer (a) and crosslinking monomer (b) are dissolved in the organic solvent, use nitrogen The air was replaced, and the mixture was stirred and heated at a temperature of 50-120° C. for 1-48 h. Generally speaking, the organic solvent is inert to the monomer and can dissolve the monomer, so it can be a ketone, such as acetone, methyl ethyl ketone; it can be an ester, such as ethyl acetate, n-butyl acetate, tert-acetic acid Butyl ester, isobutyl acetate, methyl acetate; also alcohols such as ethanol, isopropanol.

[0108] It should be noted that the water and oil repellent treatment agent can be prepared in any form, such as solution or aerosol, which can be prepared by diluting or dispersing fluorine-containing polymers in organic solvents, and prepared according to actual needs. ...

preparation example 1

[0118] Will CF 3 CF 2 (CF 2 CF 2 ) 6 CH 2 CH 2 OOCCH=CH 2 (80g), octadecyl methacrylate (13g), n-butyl methacrylate (26g), glycidyl methacrylate (1.3g), acrylamide (5.4g), hydroxyethyl methacrylate (1.3g), dodecylmercaptan (0.2) and ethyl acetate (240g) were mixed to obtain a mixture; the mixture was loaded into a 500mL flask, and the air was replaced with nitrogen; subsequently, azobisisobutyl Nitrile (0.4 g); polymerized while stirring at 60°C for 3 hours to prepare a copolymer solution. The composition of the resulting polymer is nearly identical to the formulation of the added monomers.

[0119] The chemical formula of the fluoropolymer prepared in this example is:

[0120]

[0121] Added monomer refers to CF 3 CF 2 (CF 2 CF 2 ) 6 CH 2 CH 2 OOCCH=CH 2 , octadecyl methacrylate, n-butyl methacrylate, glycidyl methacrylate, acrylamide, hydroxyethyl methacrylate.

[0122] The solid content of the obtained water and oil repellent was 34.5%.

preparation example 2

[0124] Will CF 3 CF 2 (CF 2 CF 2 ) 6 CH 2 CH 2 OOCCH=CH 2 (80g), octadecyl methacrylate (13g), n-butyl methacrylate (26g), glycidyl methacrylate (1.3g), acrylamide (5.4g), hydroxyethyl methacrylate (1.3g), dodecylmercaptan (0.2) and ethyl acetate (240g) were mixed to obtain a mixture; the mixture was loaded into a 500mL flask and replaced with nitrogen to remove dissolved oxygen; Azodiisobutyronitrile (0.6 g); polymerization was carried out at 60° C. while stirring for 3 hours to obtain a copolymer solution. The composition of the resulting polymer is nearly identical to the formulation of the added monomers.

[0125] The chemical formula of the fluoropolymer prepared in this example is:

[0126]

[0127] Added monomer refers to CF 3 CF 2 (CF 2 CF 2 ) 6 CH 2 CH 2 OOCCH=CH 2 , octadecyl methacrylate, n-butyl methacrylate, glycidyl methacrylate, acrylamide, hydroxyethyl methacrylate.

[0128] The solid content of the obtained water and oil repellent was 34.3...

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Abstract

The invention provides a fluorine-containing polymer, a waterproof and oil-proof treating agent, a preparation method of the waterproof and oil-proof treating agent and a protection film. The fluorine-containing polymer comprises a fluorine-containing monomer (a) and a crosslinking monomer (b), wherein the fluorine-containing monomer (a) and the crosslinking monomer (b) are polymerized under the existence of a polymerization initiator and a chain transfer agent; the general formula (I) of the fluorine-containing monomer (a) is CH2=C(-X)-C(=O)-Y-Z-Rf; the crosslinking monomer (b) is a compound with at least two carbon-carbon double bonds or a compound with at least one carbon-carbon double bond and at least one reaction group. After the waterproof and oil-proof treating agent containing the fluorine-containing polymer is used for treating the protection film, the obtained protection film has excellent hardness performance and better waterproof and oil-proof performance; the dirt residue since fingers contact the surface of the protection film can be reduced.

Description

technical field [0001] The invention relates to the technical field of screen protective film treatment of electronic products, and more specifically relates to a fluorine-containing polymer, a water and oil repellent treatment agent, a preparation method thereof, and a protective film. Background technique [0002] At present, mobile terminal electronic products such as mobile phones and tablet computers have been widely used, and most of them use touch screens. In the process of moving, the surface of the screen is easily damaged by scratches, impacts or vibrations, or in the process of touching, the surface of the screen is easily affected by grease and dirt. [0003] Most of the existing protective film products on the market are mostly made of glass, the surface hardness is not enough, and the surface is not waterproof and oil-proof, so it is easy to be scratched, scratched or stained with grease marks , poor user experience. Of course, there are also some protective ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/22C08F220/18C08F220/32C08F220/56C08F220/28C09D133/14C08J7/04
CPCC08F220/22C08J7/0427C08J2367/02C08J2375/04C09D133/14C08F220/1818C08F220/1804C08F220/325C08F220/56C08F220/281
Inventor 蔡伟强方晓东方晓春
Owner GUANGZHOU LEHMAN BROS ELECTRONICS TECH CO LTD
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