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Preparing method for silicon-containing optical anti-reflection polyester film

A polyester film, optical technology, applied in the direction of coating, etc., can solve the problems of monodisperse nano-SiO2, etc., achieve the effect of changing the hydrophobic property and improving the effect of anti-reflection

Inactive Publication Date: 2015-12-23
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this approach is that monodisperse nano-SiO 2 It is easy to agglomerate, which in turn affects the uniformity of the pores of the anti-reflection film layer formed on the surface of the polyester film

Method used

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  • Preparing method for silicon-containing optical anti-reflection polyester film
  • Preparing method for silicon-containing optical anti-reflection polyester film
  • Preparing method for silicon-containing optical anti-reflection polyester film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Prepare 50 ml of absolute ethanol, 3 ml of ammonia water and 5 ml of distilled water in No. 1 beaker, and prepare 50 ml of absolute ethanol and 6 ml of TEOS in No. 2 beaker. Pour the mixed solution in the No. 1 beaker into a dry three-necked flask, place it in an oil bath at 50°C and stir evenly, pour the mixed solution in the No. 2 beaker into a constant pressure dropping funnel, and add slowly drop by drop. After the dropwise addition, react at 50°C for 1 hour, and drop γ-methacryloxypropyltrimethoxysilane (KH570) into the three-necked flask according to the TEOS:silane coupling agent (volume ratio) of 1:6. , and reacted at 50° C. for 4 hours after the dropwise addition was completed. (2) Spin coating and film formation: take out the SiO prepared in step (1) 2 The sol is diluted in different times and then spin-coated on the washed and dried PET film. After a certain heat treatment, the light transmittance is measured. The PET film is 3cm×3cm; the coating time i...

Embodiment 2

[0030] (1) Prepare 50 ml of absolute ethanol, 3 ml of ammonia water and 5 ml of distilled water in No. 1 beaker, and prepare 50 ml of absolute ethanol and 6 ml of TEOS in No. 2 beaker. Pour the mixed solution in the No. 1 beaker into a dry three-necked flask, place it in an oil bath at 50°C and stir evenly, pour the mixed solution in the No. 2 beaker into a constant pressure dropping funnel, and add slowly drop by drop. After the dropwise addition, react at 50°C for 1 hour, add dodecafluoroheptylpropyltrimethoxysilane (G502) dropwise into the three-necked flask according to the TEOS:silane coupling agent (volume ratio) of 1:6, dropwise After completion, the reaction was carried out at 50° C. for 4 hours. (2) Spin coating and film formation: take out the SiO prepared in step (1) 2 The sol is diluted in different times and then spin-coated on the washed and dried PET film. After a certain heat treatment, the light transmittance is measured. The PET film is 3cm×3cm; the coating...

Embodiment 3

[0033] (1) Prepare 50 ml of absolute ethanol, 3 ml of ammonia water and 5 ml of distilled water in No. 1 beaker, and prepare 50 ml of absolute ethanol and 6 ml of TEOS in No. 2 beaker. Pour the mixed solution in the No. 1 beaker into a dry three-necked flask, place it in an oil bath at 50°C and stir evenly, pour the mixed solution in the No. 2 beaker into a constant pressure dropping funnel, and add slowly drop by drop. After the dropwise addition, react at 50°C for 1 hour, and drop γ-methacryloxypropyltrimethoxysilane (KH570) into the three-necked flask according to the TEOS:silane coupling agent (volume ratio) of 1:6. , and reacted at 50° C. for 4 hours after the dropwise addition was completed. (2) Spin coating and film formation: take out the SiO prepared in step (1) 2 The sol is diluted in different times and then spin-coated on the washed and dried PET film. After a certain heat treatment, the light transmittance is measured. The PET film is 3cm×3cm; the coating time i...

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Abstract

The invention relates to a preparing and studying method for a silicon-containing optical anti-reflection polyester film, and belongs to the field of organic film material surface modification. The preparing method includes the steps that tetraethoxysilane is subjected to alkali catalytic hydrolysis to obtain monodisperse nano silica sol particles of different particle sizes; the surface of a PET film is spin-coated with the monodisperse nano silica sol particles, the surface, coated with the silica sol, of the PET film is coated with a silane coupling agent (like dodecafluoroheptylpropyltrimethoxy silane, or gamma-methylacryloyloxypropyltrimethoxy silane, or gamma-trispropanepropoxytrimethoxy silane, or vinyltrimethoxy silane) through a dip coating method to prepare the silica optical anti-reflection polyester film. The preparing technology is convenient and easy to implement and low in cost, and light transmittance of the modified polyester film is improved obviously, which meets the use requirement for electronic displays and other optical devices.

Description

technical field [0001] The invention belongs to the research field of organic / inorganic hybrid materials, in particular to a preparation method of silicon-containing optical anti-reflection polyester film. Background technique [0002] Polyester refers to the abbreviation of thermoplastic polyester containing ester groups. Polyethylene terephthalate (PET), as a member of thermoplastic saturated polyester, is widely used in plastic packaging materials. Polyester film PET has good gas barrier properties, good mechanical properties, wide temperature range, electrical insulation properties and excellent optical properties. However, in terms of light transmittance, it is difficult for pure polyester film to meet the relevant technical requirements. Coating nano-scale sol on the surface of the polyester film can reduce the reflection loss of the surface and increase the light transmittance, so it is an effective means to improve the optical properties of the polyester film. [0...

Claims

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Application Information

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IPC IPC(8): C08J7/06C08L67/02C09D1/00
Inventor 张洪文沙龙陆枫潇杨亮炯姜彦俞强
Owner CHANGZHOU UNIV
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