Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of porous antireflection film formed by nanopolymer hollow particles

一种纳米聚合物、防反射的技术，应用在纳米技术、纳米技术、纳米光学等方向，能够解决机械性能差、制备工艺复杂等问题，达到成本低、制备工艺简单、好机械强度和耐摩擦性能的效果

Inactive Publication Date: 2011-04-27
ZHEJIANG UNIV
View PDF2 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a porous anti-reflection film composed of nano-polymer hollow particles for the problems of complex preparation process and poor mechanical properties of the current porous anti-reflection film

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of porous antireflection film formed by nanopolymer hollow particles
  • Preparation method of porous antireflection film formed by nanopolymer hollow particles
  • Preparation method of porous antireflection film formed by nanopolymer hollow particles

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032]The steps of the preparation method of the porous anti-reflection film composed of nanometer polymer hollow particles are as follows:

[0033] 1) Prepare the nano-polymer capsules into an aqueous dispersion with a mass percent concentration of 3-7%, spin-coat the surface of the substrate on one or both sides through a homogenizer, and form nano-polymer capsules after the water evaporates film;

[0034] 2) Place the film containing nanopolymer capsules in a vacuum oven and dry at 150 to 180°C for 4 to 5 hours. After the water in the film and the core material in the nanopolymer capsules are completely volatilized, the nanopolymer The capsules are transformed into nano-polymer hollow particles, and a porous anti-reflection film composed of nano-polymer hollow particles is obtained. The thickness of the porous anti-reflection film is 74-127nm, the refractive index is 1.15-1.26, and the porosity is 0.47-0.66.

[0035] The substrates are transparent quartz sheets and glass ...

Embodiment 1

[0044] (1) Preparation of nanopolymer capsules:

[0045] 1) Mix 7 grams of methacrylic acid, 6 grams of methyl methacrylate, 0.3 grams of 4,4-azo-bis(4-cyanovaleric acid) and 2 grams of dodecyl-3-carbonitrile Trithiopentylvaleric acid was dissolved in 50 grams of dioxane solvent, and polymerized at 70° C. for 9 hours to obtain an amphiphilic macromolecular reversible addition scission chain transfer reagent. The structural formula is as follows:

[0046] 2) 0.5 gram of the above-mentioned amphiphilic macromolecular reversible addition chain scission chain transfer reagent and 70 gram of deionized water are formulated into an aqueous solution as the water phase, and 6 gram of methyl methacrylate, 8 gram of p-vinylbenzene, The oil phase composed of 0.05 g of azobisisobutyronitrile and 7 g of paraffin was uniformly mixed, and a fine emulsion was prepared by an ultrasonic pulverizer under the action of a high shear field.

[0047] 3) Move the mini-emulsion to the reactor, reac...

Embodiment 2～5

[0057] Examples 2-5 are the same as Example 1 except that the concentrations of the aqueous dispersions of nanocapsules are different. The mass percent concentrations of the aqueous dispersions of nanocapsules used in Examples 2 to 5 were 3%, 4%, 5% and 7%, respectively, and the specific property parameters of the prepared porous antireflection films are shown in Table 2. It can be found from Table 2 that with the increase of the concentration of the aqueous dispersion of nanocapsules, the thickness and the refractive index of the prepared anti-reflection film all increase thereupon, this is because when the concentration of the aqueous dispersion of nanocapsules increases, at the same Under the spin coating speed, the number of nanocapsules in the formed film increases and the arrangement is more compact, so the thickness of the film layer increases, and the porosity of the porous film decreases after vacuum drying, so that the refractive index of the film increases accordingl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a porous antireflection film formed by nanopolymer hollow particles, comprising the following steps of: (1) preparing nanopolymer capsules into an aqueous dispersion with the concentration in mass percent of 3-7, carrying out spin coating on single or double surfaces of a base material through a spin coater to form a film containing the nanopolymer capsules; and (2) carrying out vacuum drying on the film containing nanopolymer capsules at high temperature to obtain the porous antireflection film formed by nanopolymer hollow particles after the core materials of the nanopolymer capsules in the film are completely volatilized and the nanopolymer capsules become nanopolymer hollow particles. The preparation method is simple, the thickness and the refractive index of the porous antireflection film can be conveniently and effectively adjusted by changing the concentration of the aqueous dispersion of the nanopolymer capsules and the cavity volume fraction of the nanopolymer hollow particles, in addition, the prepared porous antireflection film has higher mechanical strength and crocking resistance.

Description

technical field [0001] The invention relates to a preparation method of a porous anti-reflection film composed of nanometer polymer hollow particles. Background technique [0002] Anti-reflection films can enhance the light transmittance of optical devices to reduce unnecessary reflection and glare, and have important application value and development prospects in the fields of solar cells, liquid crystal displays and optical components. The basic principle of anti-reflection is to use light to interfere and cancel each other under certain conditions (anti-reflection mechanism such as figure 1 As shown), when the incident light is reflected on the surface of the anti-reflection layer and the incident light is reflected on the interface between the anti-reflection layer and the substrate, under certain conditions, the phase reversal of each other can be eliminated, and the energy of the reflected light can be offset to achieve anti-reflection the goal of. For a single-layer...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/32C04B41/48
CPCG02B1/118B82Y20/00B82Y30/00B05D5/061B01J13/203G02B5/0247B01J13/14G02B1/111B05D1/005
Inventor 孙志娟罗英武
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com