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Full-color colloid photonic crystal film and its preparation method and use

A technology of colloidal photonic crystals and monomers, applied in optics, nonlinear optics, instruments, etc., can solve the problems of low cost of full-color colloidal photonic crystal films, and achieve easy control of size and shape, simple methods, and simple equipment Effect

Active Publication Date: 2006-07-26
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The second purpose of the present invention is to provide a large-scale photonic crystal film that can effectively overcome the defects of large-scale preparation of photonic crystal films that are difficult to achieve by traditional methods, without the need for specific assembly devices and without special requirements on the temperature and humidity of the surrounding environment. A simple preparation method for large-scale full-color colloidal photonic crystal film, and the cost of the full-color colloidal photonic crystal film prepared by this method is low

Method used

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  • Full-color colloid photonic crystal film and its preparation method and use
  • Full-color colloid photonic crystal film and its preparation method and use
  • Full-color colloid photonic crystal film and its preparation method and use

Examples

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Embodiment 1

[0057] Embodiment 1: (preparation of monodisperse polymer latex particles)

[0058] Monomer mixture methyl methacrylate (0.5 gram), styrene (7 gram), methyl styrene (8 gram) and acrylic acid (0.5 gram), pH buffer ammonium bicarbonate (0.5 gram) and emulsifier ten A mixture of sodium dialkylbenzenesulfonate and sodium dodecylsulfonate (1:1 by weight) (3.419mg) was dispersed in water (100mL), and the resulting mixed system was stirred and mixed at 500rpm, and heated to 65°C. Add 10 milliliters of ammonium persulfate (0.5 gram is dissolved in 20 milliliters of water) aqueous solution and start to react, add 5 milliliters of ammonium persulfate aqueous solution again after reacting 4.5 hours, all the other ammonium persulfate aqueous solutions add after continuing reaction 4.5 hours, The reaction was then continued for 3 hours to end. Finally, monodisperse polymer latex particles with a monodispersity index less than or equal to 0.005 and a particle size range of 284 nm are obta...

Embodiment 2

[0060] Embodiment 2: (preparation of monodisperse polymer latex particles)

[0061] The monomer mixture vinyl acetate (0.5 g), butyl methacrylate (0.5 g), methyl styrene (21 g), acrylamide (0.6 g) and acrylic acid (0.4 g), pH buffer sodium hydrogen phosphate (0.6 gram) and the mixture of ammonium bicarbonate (0.6 gram) and emulsifier sodium lauryl sulfate (4.920mg) are dissolved in water (100mL), and the mixed system obtained is stirred and mixed at 800rpm, and heated to 85 ℃. Add 10 milliliters of initiator (obtained by dissolving potassium persulfate (0.6 gram) and ammonium persulfate (0.4 gram) in 20 milliliters of water) to start the reaction, add 5 milliliters of initiator aqueous solution after reacting for 2 hours, and the rest The aqueous initiator solution was added after continuing the reaction for 2 hours, and the reaction was then terminated after continuing for 1 hour. Finally, monodisperse polymer latex particles with a monodispersity index less than or equal t...

Embodiment 3

[0063] Embodiment 3: (preparation of monodisperse polymer latex particles)

[0064] The monomer mixture isobutyl methacrylate (1.2 grams), methyl styrene (18 grams) and methacrylic acid (1.2 grams), pH buffer sodium bicarbonate (1.0 grams) and emulsifier dodecyl sulfonate Sodium bicarbonate (4.366 mg) was dissolved in water (100 mL), and the resulting mixed system was stirred and mixed at 600 rpm, and heated to 75°C. Add 10 milliliters of potassium persulfate (0.8 gram is dissolved in 20 milliliters of water) aqueous solution and start to react, react 3.5 hours and then add 5 milliliters of potassium persulfate aqueous solution, all the other potassium persulfate aqueous solutions add after continuing reaction 3 hours, The reaction was then terminated after 2 hours. Finally, monodisperse polymer latex particles with a monodispersity index less than or equal to 0.005 and a particle size range of about 284 nm are obtained.

[0065] When changing the amount of emulsifier sodium...

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Abstract

The invention relates to a large size full color colloid photon crystal membrane and the method for making the same. The method comprises: covering monodisperse polymer emulsion particle with hard shell-soft shell structures on the flat base material to form full color colloid photon crystal membrane after dispersion volatilizing, the model having cellular structure; the thickness of the single dispersion polyaromatics emulsion particle shell is 20-50nm, the range of the diameter of emulsion particle is 170í½300nm, and the multi dispersion index is less or equal to 0.005.

Description

technical field [0001] The invention belongs to the technical field of colloidal photonic crystal film preparation, and in particular relates to a large-size full-color colloidal photonic crystal film and a preparation method thereof; and the application of the colloidal photonic crystal film in the fields of coating, printing and cosmetics. In particular, it relates to the preparation of monodisperse polymer latex particles by one-step emulsion polymerization. Background technique [0002] The colloidal photonic crystal material achieves bright colors by the refraction or diffraction of light by the periodic structure formed by the regular arrangement of monodisperse latex particles. The color produced in this way can not only overcome the problems of energy consumption and environmental pollution in the usual dye / pigment preparation process, but also fundamentally solve the toxic effect of dye / pigment on the human body. In addition, the prepared colloidal photonic crystal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/00
Inventor 王京霞宋延林江雷
Owner INST OF CHEM CHINESE ACAD OF SCI
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