UV (ultraviolet)-blocking and antifouling coating composition, hard coating film and preparation methods

A technology of composition and hardened film, which is applied in the direction of antifouling/underwater coatings, coatings, polyester coatings, etc., to achieve the effects of hydrophobic and oleophobic antifouling performance, scratch resistance, and excellent scratch resistance

Active Publication Date: 2016-01-27
NINGBO SOKEN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the wide application of hardened film, its performance requirements are getting higher and higher, and the single-performance hardened film can no longer meet the needs of the mark

Method used

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  • UV (ultraviolet)-blocking and antifouling coating composition, hard coating film and preparation methods
  • UV (ultraviolet)-blocking and antifouling coating composition, hard coating film and preparation methods
  • UV (ultraviolet)-blocking and antifouling coating composition, hard coating film and preparation methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The components and parts by weight of the UV cut-off antifouling coating composition in the present embodiment are:

[0026]

[0027] Under the condition of avoiding sunlight or ultraviolet light irradiation, relative air humidity less than 60%, to 40 parts of polyester acrylate prepolymer CN2254NS (manufactured by American Sartomer, functionality 2) and 12 parts of dipentaerythritol hexaacrylate DPHA ( Made by Ningbo Jinteng Chemical Co., Ltd., functionality 6) add 1.0 part of modified perfluoropolyether DAC-HP (manufactured by Daikin Corporation of Japan, solid content is 20%), 0.3 part of leveling agent 401LS (manufactured by Dow Corning Company), 50 parts of methyl isobutyl ketone, after fully stirring, add 5 parts of UV absorber OC-T20K (manufactured by Nissan Chemical, with a solid content of 20%) and continue stirring, then add 7 parts of 184 photoinitiators (manufactured by BASF) and stir evenly , and remove impurities with a 1um filter to obtain a photoharde...

Embodiment 2

[0030] The components and parts by weight of the UV cut-off antifouling coating composition in the present embodiment are:

[0031]

[0032] Under the condition of avoiding sunlight or ultraviolet light irradiation, relative air humidity less than 60%, to 40 parts of polyester acrylate prepolymer CN2254NS (manufactured by American Sartomer, functionality 2) and 12 parts of dipentaerythritol hexaacrylate DPHA ( Manufactured by Ningbo Jinteng Chemical Co., Ltd., functionality 6) Add 1.0 part of modified perfluoropolyether DAC-HP (manufactured by Daikin Corporation of Japan, solid content is 20%), 0.2 part of leveling agent 401LS (manufactured by Dow Corning Company), 50 parts of methyl isobutyl ketone, after fully stirring, add 2 parts of UV absorber OC-T20K (manufactured by Nissan Chemical, with a solid content of 20%) and continue stirring, then add 7 parts of 184 photoinitiators (manufactured by BASF) and stir evenly , and remove impurities with a 1um filter to obtain a UV...

Embodiment 3

[0035] The components and parts by weight of the UV cut-off antifouling coating composition in the present embodiment are:

[0036]

[0037] Under the condition that avoids sunlight or ultraviolet light irradiation, air relative humidity is less than 60%, to 25 parts of aliphatic urethane acrylate prepolymers CN9006NS (manufactured by U.S. Sartomer, functionality 6) and 20 parts of pentaerythritol triacrylate PETA ( Manufactured by Ningbo Jinteng Chemical Co., Ltd., functionality 3) Add 2 parts of modified perfluoropolyether DAC-HP (manufactured by Daikin Corporation of Japan, solid content is 20%), 0.3 part of leveling agent 401LS (manufactured by Dow Corning Company), 50 parts of methyl isobutyl ketone, stir well and then add 4 parts of UV absorber OC-T20K (manufactured by Nissan Chemical, solid content is 20%) After continuing to stir, add 3 parts of 184 photoinitiator (manufactured by BASF) and stir evenly , and remove impurities with a 1um filter to obtain a UV cut-off...

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Abstract

The invention relates to UV (ultraviolet)-blocking and antifouling coating composition, a hard coating film and preparation methods. The coating composition comprises components in parts by weight as follows: 20-40 parts of a polyfunctional acrylate prepolymer, 10-35 parts of a UV active monomer, 2-8 parts of a photoinitiator, 0.1-0.5 parts of a leveling agent, 2-6 parts of a UV absorber, 0.5-2 parts of a fluorine-containing antifouling agent and 0-50 parts of an organic solvent. The UV-blocking and antifouling coating composition is applied to a substrate and heated at 60-100 DEG C for 30-100 s, then the coating is subjected to UV radiation by a high-pressure mercury lamp with the radiation strength of 150-300 w/cm and the energy of 200-400 mj/cm<2>, and the UV-blocking and antifouling hard coating film is obtained. The fluorine-containing antifouling agent and the UV absorber are added to the coating composition, so that the hard coating film prepared from the coating composition further has the UV blocking performance, hydrophobic-oleophobic antifouling performance and excellent scratch resistance besides high hardness and optical performance of a conventional hard coating film, can be widely applied to the fields of display outer screens, glass exterior walls, injection molding and the like and has the effects of UV blocking, antifouling, easiness in cleaning and scratch resistance.

Description

technical field [0001] The invention relates to the field of hardened films, in particular to a UV blocking and antifouling coating composition, a hardened film and a preparation method. Background technique [0002] With the rapid development of smart phones, personal tablet computers, LCD TVs, digital cameras and other products, touch screen technology has been widely used. Touch screens are generally composed of transparent composite film layers, glass or plexiglass layers, and outer plastic layers. On the one hand, hardened films are widely used as an important optical substrate to make ITO conductive films, explosion-proof films, etc. It is used for full bonding or frame bonding of optical devices inside the touch screen. On the other hand, on the outside of the touch screen, with the country's mandatory requirements for the safety of large-size glass during transportation and use, hardened films are widely used for explosion-proof and splash-proof protection of variou...

Claims

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Application Information

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IPC IPC(8): C09D167/06C09D175/14C09D5/16C08J7/04
Inventor 柳彬彬王旭辉余欣蔚
Owner NINGBO SOKEN CHEM
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