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Chrysotile nanofiber and resin composite transparent film, and preparation method and application thereof

A kind of fiber serpentine and nanofiber technology, which is applied in the field of fiber serpentine nanofiber and resin composite film and its preparation

Inactive Publication Date: 2013-10-02
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It effectively overcomes the disadvantage that the existing technology cannot use inorganic substances and resins to prepare composite transparent films, making chilliophilite nanofiber / resin composite transparent films have wide application potential in many fields such as window materials and transparent films

Method used

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  • Chrysotile nanofiber and resin composite transparent film, and preparation method and application thereof
  • Chrysotile nanofiber and resin composite transparent film, and preparation method and application thereof
  • Chrysotile nanofiber and resin composite transparent film, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Preparation of chrysotile nanofibers and resin composite transparent film

[0024] Add the chrysotile nanofibers into water, and add sodium polyacrylate with a mass ratio of 20wt% to the chrysotile nanofibers, and form a uniform colloidal solution with a concentration of 0.1% by mechanical stirring and ultrasound. Take 80ml of the colloidal solution and use a microfiltration membrane with a diameter of 50 mm and a pore size of 0.2 μm for vacuum filtration. The obtained filter membrane is vacuum-dried, which is more conducive to the discharge of water and the improvement of film density. white chrysotile nanofiber film. The film is vacuum-immersed in a mixed system cured resin composed of polyurethane acrylate with a refractive index of 1.51, functional monomers and photoinitiators for 24 hours, and then taken out for static pressure molding. The molding pressure is 0.1MPa. Both the light transmittance and mechanical properties of the film are affected. The...

Embodiment 2

[0025] Example 2: Preparation of chrysotile nanofibers and resin composite transparent film

[0026]Add the chrysotile nanofibers into water, and add polyvinyl alcohol with a mass ratio of 10wt% to the chrysotile nanofibers, and form a uniform colloidal solution with a concentration of 0.2% by mechanical stirring and ultrasound. Take 100ml of the colloidal solution and use a microfiltration membrane with a diameter of 50 mm and a pore size of 0.45 μm to perform pressure filtration at a pressure of 0.5 MPa. The pressure filtration can adjust the filtration pressure to obtain nanofiber films with different densities. The filter membrane obtained after pressure filtration was vacuum-dried to obtain a white chrysotile nanofiber film with a thickness of about 65 μm. The film is vacuum-immersed in a mixed system cured resin composed of acrylic resin with a refractive index of 1.53, functional monomers and photoinitiators for 24 hours, and then taken out for static pressure molding...

Embodiment 3

[0027] Example 3: Preparation of chrysotile nanofibers and resin composite transparent film

[0028] Add the chrysotile nanofibers into water, and add polyacrylamide with a mass ratio of 30wt% to the chrysotile nanofibers, and form a uniform colloidal solution with a concentration of 0.1% by mechanical stirring and ultrasound. Take 100ml of the colloidal solution and use a microfiltration membrane with a diameter of 50mm and a pore size of 0.2μm to carry out pressure filtration, and the applied pressure is 0.3MPa. After the obtained filter membrane is vacuum-dried, a white chrysotile with a thickness of about 50μm is obtained. nanofiber film. The film is vacuum-immersed in a mixed system cured resin composed of epoxy acrylate, functional monomer and photoinitiator with a refractive index of 1.48 for 18 hours, and then taken out for static pressure molding. The molding pressure is 0.5MPa, and the larger molding pressure is formed The transparent composite film has better lig...

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Abstract

A chrysotile nanofiber and resin composite transparent film, and a preparation method and application thereof. The film includes a layer of chrysotile nanofiber layer with pores; the nanofiber layer is wrapped between an upper resin layer and a lower resin layer; and the resin is infiltrated into the pores of the fiber layer. The content of chrysotile nanofiber is 20wt%-75wt%, and the thickness of the transparent composite film is 70-150 mum. The method is as below: adding chrysotile nanofiber into water, adding a polymer binder, and forming a uniform colloidal solution through mechanical stirring and ultrasonic; filtering the colloidal solution with a microfiltration membrane, and drying the obtained filter membrane to form a white chrysotile nanofiber film; and impregnating the chrysotile nanofiber film in vacuum in a UV curing resin, taking out the film, leveling and forming, curing with the UV to obtain the chrysotile nanofiber and resin composite film. The composite transparent film can be applied to substrate materials of organic electroluminescent devices.

Description

technical field [0001] The invention belongs to the field of mineral materials, composite materials and non-metallic ore deep processing, and specifically relates to a composite film of chrysotile nanofiber and resin, a preparation method and application thereof. Background technique [0002] Organic electroluminescent devices (OLEDs) have become the most promising next-generation display technology due to their low production cost, low driving voltage, high-definition, ultra-thin and many other advantages. OLED devices made of flexible substrate materials (such as plastics) can be bent, folded, easy to carry and install, and impact resistant, which greatly expands the application range of OLEDs. The key to flexible devices is the flexible substrate. The properties required for OLED flexible substrate materials mainly include: thickness of 60-180 μm (generally about 100 μm), light transmittance greater than 85%, haze less than 0.7%, thermal expansion coefficient less than 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/04B32B27/12H01L51/52
Inventor 刘琨冯其明张国范欧乐明卢毅屏
Owner CENT SOUTH UNIV
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