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Polymer colloid photon crystal membrane with photon band-gap position in middle infrared region and preparation method and usage thereof

A colloidal photonic crystal and photonic band gap technology, which can be used in fire-resistant coatings and other directions, can solve the problem of high cost, and achieve the effects of low cost, simple and easy method, and prevention of heat conduction.

Active Publication Date: 2007-10-31
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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But this method is more costly

Method used

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  • Polymer colloid photon crystal membrane with photon band-gap position in middle infrared region and preparation method and usage thereof
  • Polymer colloid photon crystal membrane with photon band-gap position in middle infrared region and preparation method and usage thereof
  • Polymer colloid photon crystal membrane with photon band-gap position in middle infrared region and preparation method and usage thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1: Preparation of a polymer colloidal photonic crystal film with a photonic bandgap position in the mid-infrared region

[0041] At room temperature, the poly(styrene-methacrylate-acrylic acid) terpolymer emulsion with a concentration of 5wt% and a monodisperse particle size of 3 μm is evenly covered on a clean glass, silicon wafer or stainless steel plate base On the substrate, after the water in the dispersion liquid evaporates and dries up at normal temperature (15-30°C) and normal pressure, the monodisperse large-particle-diameter polymer latex particles are piled up on the substrate in a face-centered cubic manner, and form a periodic arrangement. Three-dimensional photonic crystal film. The photonic bandgap position of the prepared colloidal photonic crystal film involves 6-12 μm (as shown in FIG. 2 ). The SEM photo is shown in Fig. 1 .

Embodiment 2

[0042] Example 2: Preparation of a polymer colloidal photonic crystal film with a photonic bandgap position in the mid-infrared region

[0043] According to the method of Example 1, a poly(styrene-butyl acrylate-acrylic acid) terpolymer latex particle emulsion with a concentration of 30 wt% and a monodisperse particle size of 2.5 μm was assembled into a photonic crystal film. The photonic bandgap position of the prepared colloidal photonic crystal film involves 6-12 μm (as shown in FIG. 3 ).

Embodiment 3

[0044] Example 3: Preparation of a polymer colloidal photonic crystal film with a photonic bandgap position in the mid-infrared region

[0045] According to the method of Example 1, a poly(methylstyrene-butyl acrylate-acrylic acid) terpolymer latex particle emulsion with a concentration of 15 wt% and a monodisperse particle size of 2.8 μm was assembled into a photonic crystal film. The photonic bandgap position of the prepared colloidal photonic crystal film involves 8-12 μm (as shown in FIG. 4 ).

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Abstract

The invention discloses an usage of polymer colloid photon crystal film in warming or insulating aspect in colloid photon crystal film utility domain, which comprises the following steps: coating monodisperse big grain diameter polymer emulsion particle emulsion on the leveling base material; volatilizing scattering dissolvent water; getting ordered array periodicity three-dimensional photon crystal film; cube-stacking with centroid of monodisperse big grain diameter polymer emulsion particle with grain diameter at 2-5 mum. This crystal film disperses during 6-12 mum of human body thermal radiation in the infrared wave range, which can be used to produce warming and insulating material.

Description

technical field [0001] The invention belongs to the application field of colloidal photonic crystal films, and in particular relates to the use of polymer colloidal photonic crystal films with large photonic bandgap positions in the mid-infrared region in thermal insulation or thermal insulation coatings. Background technique [0002] Colloidal photonic crystal materials refract or diffract light with a periodic structure formed by the regular arrangement of monodisperse latex particles to achieve special regulation of light. Depending on the size of the periodic arrangement, the wavelength of the modulated light is different. Correspondingly prepared colloidal crystals have different application fields. In the usual patent literature, colloidal photonic crystal films are mainly used in filters (such as CN: 01105105.1, CN: 98110990.X), photoelectric switching (CN: 0310004.4, CN: 02160207.7), optical waveguides (CN: 02804125.9, CN: 99810798, CN: 01132293.4, CN: 02811132.X),...

Claims

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Application Information

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IPC IPC(8): C08J5/18C09D5/18
Inventor 王京霞宋延林江雷
Owner INST OF CHEM CHINESE ACAD OF SCI
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