Method for regulating and controlling transmittance of chrysotile nano-fiber films by gap filling

A fiber serpentine and nanofiber technology is applied in the field of adjusting the transmittance of fiber serpentine nanofiber films by using void filling, and can solve problems such as improving and regulating the transmittance of fiber serpentine nanofiber films that have not yet been seen. , to improve the transmittance and reduce the effect of Rayleigh scattering

Inactive Publication Date: 2016-09-21
CENT SOUTH UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

At present, there are no related reports on improving and reg

Method used

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  • Method for regulating and controlling transmittance of chrysotile nano-fiber films by gap filling
  • Method for regulating and controlling transmittance of chrysotile nano-fiber films by gap filling
  • Method for regulating and controlling transmittance of chrysotile nano-fiber films by gap filling

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Embodiment

[0031]Take a white chrysotile nanofiber film with a thickness of about 50 μm, vacuum impregnate it in a photocurable resin system with bis-pentaerythritol hexaacrylate as the main component with a refractive index of 1.496 after curing for 24 hours, and then remove the excess resin on the surface , and then UV-cured, the light transmittance of the chrysotile nanofiber film can be increased to 78.22% (at 590nm); take a white chrysotile nanofiber film with a thickness of about 70 μm, and vacuum impregnate it in the cured refractive index. 1.542 in the photocurable resin system with o-phenylphenoxyethyl acrylate and ethoxylated bisphenol A dimethacrylate as the main components for 12 hours, then take out and remove the excess resin on the surface, and then carry out ultraviolet curing, which can be The light transmittance of the chrysotile nanofiber film is increased to 84.46% (at 590nm); the white chrysotile nanofiber film with a thickness of about 40 μm is vacuum-impregnated in ...

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Abstract

The invention relates to a chrysotile nano-fiber film, in particular to a method for regulating and controlling transmittance of chrysotile nano-fiber films by gap filling. The method comprises the following steps: firstly, respectively soaking a plurality of chrysotile nano-fiber films in liquid solidifiable resins with different refractive indexes; after air in gaps of all the chrysotile nano-fiber films is discharged completely and the gaps are fully filled with the resin, taking out the chrysotile nano-fiber films; then removing residual resins on the surfaces of the chrysotile nano-fiber films; and finally solidifying to obtain the chrysotile nano-fiber films with different transmittances. The solidifiable resins with relatively high refractive indexes replace the air in the chrysotile nano-fiber films, namely, the resins with the different refractive indexes are used for filling the gaps among the chrysotile nano-fiber films, so that the Rayleigh scattering effect of an interface to visible light is reduced inordinately, and the purpose of improving, regulating and controlling the transmittance of the chrysotile nano-fiber films is achieved.

Description

technical field [0001] The invention relates to a chrysotile nanofiber film, in particular to a method for controlling the light transmittance of the choroiderite nanofiber film by filling gaps. Background technique [0002] Chilli serpentine nanofiber film is a filter membrane obtained by suction filtration or pressure filtration of chrysotile nanofiber sol, and then dried. Its appearance is a white opaque film, which is due to its The space is filled with a large number of voids, which are filled with air. [0003] Chilli serpentine nanofiber film is a kind of relatively dense film formed by random dense packing of chrysotile nanofibers. It has high porosity, large specific surface area, excellent mechanical properties, and good thermal stability. It has application potential in filtration, adsorption, enhancement, etc. The film is white in appearance, opaque, and can be written on and bent and folded like paper. If the light transmittance of this film can be changed so...

Claims

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Application Information

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IPC IPC(8): C08F22/20C08F20/10C08F220/30C08F222/20C08F2/48C08K7/10B01D71/02B01D71/06B01J20/26B01J20/30
CPCB01D71/02B01D71/06B01D2325/22B01D2325/24B01J20/04B01J20/26C08F2/48C08F20/10C08F22/20C08F220/30C08F220/301C08F222/20C08K7/10
Inventor 刘琨朱宾楠冯其明张国范欧乐明卢毅屏石晴
Owner CENT SOUTH UNIV
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