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Modified high-antireflection optical thin film and preparation method thereof

An optical film and modification technology, applied in the direction of coating, etc., can solve the problem that the light transmittance of polyester film cannot be achieved, and achieve the effect of improving optical anti-reflection effect, stable performance, and enhanced adsorption capacity

Active Publication Date: 2017-06-23
JIANGXI KEWEI FILM NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the present invention: In view of the problem that the light transmittance of the current polyester film cannot meet the technical requirements, the present invention provides a modified high anti-reflection optical film and its preparation method to improve the light transmittance of the optical film

Method used

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  • Modified high-antireflection optical thin film and preparation method thereof
  • Modified high-antireflection optical thin film and preparation method thereof
  • Modified high-antireflection optical thin film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Preparation of unmodified fluorine-containing acrylate emulsion copolymer: Add 0.8 g of sodium dodecylsulfonate emulsifier, distill 60 mL, and 0.2 g of potassium persulfate initiator into a three-necked flask, and place it in an oil bath at 45°C Stir evenly, and add 2.5mL of St (styrene) and 5mL of HFMA mixture dropwise into the three-necked flask through a constant pressure funnel. When the solution turns blue, add 0.2g of potassium persulfate initiator, slowly add the remaining 2.5mL of St (styrene) and 5mL of HFMA (hexafluorobutyl methacrylate) monomer through a constant pressure funnel at a temperature of 60°C, After the dropwise addition, react at 65°C for 5 hours to obtain an unmodified fluorine-containing acrylate emulsion copolymer, which is dried at room temperature to obtain a dried unmodified fluorine-containing acrylate emulsion copolymer;

[0025](2) Preparation of amino POSS modified fluorine-containing acrylate emulsion copolymer: Take 15mL of γ-amino...

Embodiment 2

[0029] (1) Take 15mL of γ-aminopropyltriethoxysilane (KH-550) and 5-8mL of concentrated hydrochloric acid with a mass concentration of 30% and add it dropwise to 200mL of methanol solution and stir. After the reaction is complete, add 500mL of acetone solution , high-speed centrifugation, standing, and drying to obtain solid amino POSS; 0.8 g of sodium dodecylsulfonate emulsifier, 60 mL of distillation, 0.2 g of potassium persulfate initiator and 0.15 g of amino POSS were added to the three-necked flask, Put it in an oil bath at 45°C and stir evenly, and add 2.5mL of St (styrene) and 5mL of HFMA mixture into the three-necked flask dropwise through a constant pressure funnel. When the solution turns blue, add 0.2g of potassium persulfate initiator, slowly add the remaining 2.5mL of St (styrene) and 5mL of HFMA (hexafluorobutyl methacrylate) monomer through a constant pressure funnel at a temperature of 60°C, After the dropwise addition, react at 65°C for 5 hours to obtain an am...

Embodiment 3

[0033] (1) Take 15mL of γ-aminopropyltriethoxysilane (KH-550) and 5-8mL of concentrated hydrochloric acid with a mass concentration of 30% and add it dropwise to 200mL of methanol solution and stir. After the reaction is complete, add 500mL of acetone solution , high-speed centrifugation, standing, and drying to obtain solid amino POSS; 0.8 g of sodium dodecyl sulfonate emulsifier, 60 mL of distillation, 0.2 g of potassium persulfate initiator and 0.2 g of amino POSS were added to the three-necked flask, Put it in an oil bath at 45°C and stir evenly, and add 2.5mL of St (styrene) and 5mL of HFMA mixture into the three-necked flask dropwise through a constant pressure funnel. When the solution turns blue, add 0.2g of potassium persulfate initiator, slowly add the remaining 2.5mL of St (styrene) and 5mL of HFMA (hexafluorobutyl methacrylate) monomer through a constant pressure funnel at a temperature of 60°C, After the dropwise addition, react at 65°C for 5 hours to obtain an am...

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Abstract

The invention relates to the field of surface modification of an organic thin film material, and in particular relates to a modified high-antireflection optical thin film and a preparation method thereof. According to the modified high-antireflection optical thin film, a polyhedral oligomeric silsesquioxane structure (POSS) containing amino is introduced into a fluorine-containing emulsion polymer to synthesize a fluorine-containing emulsion copolymer with an optical antireflection function; latex particles in emulsion are uniformly distributed on the surface of a matrix, and the surface of a polyester matrix is coated with the emulsion; a lot of nano-grade pores are formed in the surface of the matrix through the effect of the polyhedral oligomeric silsesquioxane structure, so that a combined effective refractive index is relatively low, and furthermore, an optical antireflection function is realized. The preparation method provided by the invention is simple and easy to carry out and is low-cost; the light transmittance rate of the modified matrix is remarkably increased, and utilization requirements of electronic display devices and other optical elements are met.

Description

technical field [0001] The invention relates to the field of surface modification of organic thin film materials, in particular to a modified high anti-reflection optical film and a preparation method thereof. Background technique [0002] Optical materials are widely used in liquid crystal display, photoelectric conversion and other fields, and there are many types, among which polyester film is the most commonly used one. Polyester is the abbreviation of thermoplastic polyester containing ester groups. As a member of thermoplastic saturated polyester, polyethylene terephthalate (PET) is widely used in plastic packaging materials. At the same time, PET also has good gas barrier properties, good mechanical properties, wide operating temperature range, good electrical insulation properties and excellent optical properties, etc., and can be used as an optical film. The sol-gel method is one of the promising methods for preparing optical thin films. Because this method has a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08L67/02C08L51/08C08F283/12C08F212/08C08F220/22
CPCC08F283/122C08J5/18C08J7/0427C08J2367/02C08J2451/08C08F212/08C08F220/22
Inventor 陈政翰张洪文姜彦蒋姗沙龙赵晨丁庆月朱佳雯潘映佟何英杰刘苏琴顾钦天孙喆
Owner JIANGXI KEWEI FILM NEW MATERIALS
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