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Inverse opal photonic crystal reusable film material and preparation method thereof

A photonic crystal and anti-opal technology, applied in the field of new materials, can solve the problems of low resolution of information display, pattern burrs and burrs, etc., and achieve good stability in use, excellent self-supporting performance and flexibility

Active Publication Date: 2021-08-20
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of the traditional stimulus response mechanism, only the intermittent regulation of the color of the inkless printing material can be realized, without intermediate colors; and due to the uncontrollable diffusion or conduction of the stimulus source, the pattern has burrs and edges, which leads to the resolution of information display. low

Method used

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  • Inverse opal photonic crystal reusable film material and preparation method thereof
  • Inverse opal photonic crystal reusable film material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0052] A method for preparing an inverse opal photonic crystal reusable film material, the specific steps are as follows:

[0053] (1) Preparation of opal-type photonic crystal template array:

[0054] Monodisperse silica nanospheres with a diameter of 200nm were selected to prepare an opal-type photonic crystal array; the monodisperse silica microspheres were assembled into a three-dimensional ordered photonic crystal array by dipping and pulling self-assembly method; The monodisperse silicon dioxide nano-microspheres described above are silicon dioxide / ethanol dispersion liquid, and the mass fraction is 8%;

[0055] (2) Preparation of polymer inverse opal film:

[0056] The selected flexible polymer material is: polyvinylidene fluoride / N,N-dimethylformamide dispersion liquid, the mass fraction is 8wt%;

[0057] The above-mentioned polyvinylidene fluoride / N,N-two-methylformamide dispersion is uniformly infiltrated into the silicon dioxide photonic crystal array obtained in ...

Embodiment 2

[0066] A method for preparing an inverse opal photonic crystal reusable film material, the specific steps are as follows:

[0067] (1) Preparation of opal-type photonic crystal template array:

[0068] Select monodisperse cadmium sulfide nano-microspheres with a diameter of 250nm to prepare an opal-type photonic crystal array; through the vertical deposition self-assembly method, assemble monodisperse cadmium sulfide microspheres into a three-dimensional ordered photonic crystal array; the single The dispersed cadmium sulfide nano-microspheres are cadmium sulfide / absolute ethanol dispersion liquid, and the mass fraction is 10%;

[0069] (2) Preparation of polymer inverse opal film:

[0070] The flexible polymer material is: polyethersulfone / N,N-dimethylacetamide dispersion liquid, the mass fraction is 10wt%;

[0071] The above-mentioned polyethersulfone / N, N-dimethylacetamide dispersion liquid is uniformly infiltrated into the cadmium sulfide photonic crystal array obtained ...

Embodiment 3

[0079] A method for preparing an inverse opal photonic crystal reusable film material, the specific steps are as follows:

[0080] (1) Preparation of opal-type photonic crystal template array:

[0081] Monodisperse zinc sulfide nanospheres with a diameter of 220nm were selected to prepare opal-type photonic crystal arrays; the monodisperse zinc sulfide microspheres were assembled into a three-dimensional ordered photonic crystal array by the spin-coating self-assembly method;

[0082] Wherein said monodisperse zinc sulfide nano microspheres are zinc sulfide / absolute ethanol dispersion liquid, the mass fraction is 12%;

[0083] (2) Preparation of polymer inverse opal film:

[0084] The selected flexible polymer material is: polymethyl methacrylate / tetrahydrofuran dispersion, the mass fraction is 6wt%;

[0085] The above polymethyl methacrylate / tetrahydrofuran dispersion is uniformly infiltrated into the zinc sulfide photonic crystal array obtained in step (3), and the opal te...

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Abstract

The invention belongs to the field of new materials, and provides an inverse opal type photonic crystal reusable film material and a preparation method thereof. The inverse opal type photonic crystal film material is prepared with a macromolecular dispersion liquid or a polymerizable precursor liquid as a base material through a molecular imprinting technology and has excellent self-supporting performance; meanwhile, based on controllable deposition and analysis of metal ions, the refractive index of the material is linearly regulated and controlled, so that accurate regulation and control of the color of photonic crystal paper are achieved, full-color printing and rapid erasing of information can be achieved, and good cycle stability is achieved.

Description

technical field [0001] The invention belongs to the field of new materials, and specifically provides an inverse opal photonic crystal reusable film material and a preparation method thereof. Background technique [0002] Resource and environmental issues are the bottleneck issues for the high-quality development of society at present and in the future. As one of the pillar industries of the national economy, pulp and papermaking is also facing a bottleneck problem: a serious shortage of fiber resources, especially in recent years when my country has restricted the import of solid waste (waste paper), and the shortage of fiber resources is even more serious. Moreover, the production process of ink, ink, pigment and toner will consume a lot of energy and organic solvents, and will release irritating VOCs and fine particle toner during the printing process, causing huge damage to the environment and human health. In order to alleviate the above problems, the development of en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08J9/26C08J9/40C08L27/16C08L81/06C08L33/12
CPCC08J5/18C08J9/26C08J9/405C08J2327/16C08J2381/06C08J2333/12C08J2201/044C08J2479/04
Inventor 孟尧肖彬郝旸宋晓明陈夫山
Owner QINGDAO UNIV OF SCI & TECH
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