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Controllable immersing polymer colloidal photon crystal film at normal-temperature, its production and use

A technology of colloidal photonic crystals and polymer latex, which is applied in skin care preparations, pharmaceutical formulas, cosmetic preparations, etc., to achieve the effect of simple equipment and simple methods

Inactive Publication Date: 2007-09-05
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has not been reported in the literature or patent

Method used

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  • Controllable immersing polymer colloidal photon crystal film at normal-temperature, its production and use
  • Controllable immersing polymer colloidal photon crystal film at normal-temperature, its production and use
  • Controllable immersing polymer colloidal photon crystal film at normal-temperature, its production and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 Preparation of polymer colloidal photonic crystal film with controllable wettability

[0045] At room temperature at 25°C, the monodisperse polymer poly(styrene-methyl methacrylate-acrylic acid) latex particles (particle diameter is 160nm, with obvious Core-shell structure, see the inset in Figure 1a), adding ammonia water to adjust the pH of the latex suspension from 6 to 14 to adjust the hydrophilic group SO 3 - The method of bonding with the carboxyl group of the hydrophilic group on the surface of the latex particles, and then uniformly cover the obtained monodisperse polymer latex particle emulsion on the flat substrate, wherein the concentration of the monodisperse polymer latex particle emulsion is 5 to 30wt %. Evenly cover the obtained latex suspension on the clean glass, silicon wafer or stainless steel plate substrate, put the substrate of the coating film at room temperature, and after the water of the dispersion liquid evaporates to dryness, it w...

Embodiment 2

[0050] Embodiment 2: (waterproof coating applied to ultraviolet region)

[0051] According to the method of Example 1, the monodisperse polymer poly(styrene-methyl methacrylate-acrylic acid) latex particles were assembled at a temperature of 25°C to obtain a waterproof coating in the ultraviolet region. Depending on the particle size of the latex particles used, a waterproof UV coating can be obtained.

Embodiment 3

[0052] Embodiment 3: (material for waterproofing and preventing ultraviolet rays)

[0053] At room temperature, the polymer colloidal photonic crystal film with room temperature controllable infiltration prepared by the monodisperse polymer poly(styrene-methyl methacrylate-acrylic acid) latex particles with a concentration of 5wt% according to the method in Example 1, when The particle diameters of the monodisperse polymer latex particles are respectively 100, 115, 120, 125, 130, 150 or 160 nanometers, and the corresponding photonic bandgap positions of the prepared colloidal photonic crystal films are respectively 253, 281, 300, 319, 327, 345, 380nm. The obtained coating can be directly used to prevent ultraviolet rays, and according to the different substrates used, the used coating can be used on automobile film, glass and other facilities.

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Abstract

A controllable wetted polymer colloidal photo crystal film, its production and use are disclosed. The process is carried out by adding mono-dispersed polymer colloidal particle suspension with hard-nuclear and soft-shell structure into inorganic alkali liquor, regulating pH from 6-14, coating it onto flattened substrate material at room temperature, volatilizing for dispersant, and regulating pH value and hydrophilic group to obtain the final product. It has excellent hydrophobic, hydrophilic and super-hydrophilic performances and can be used for water-proof and ultraviolet-resisting coating.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of colloidal photonic crystal films, and in particular relates to a polymer colloidal photonic crystal film with normal temperature controllable wettability, and a preparation method of the polymer colloidal photonic crystal film with normal temperature controllable wettability and its application in Applications such as waterproof coatings. Background technique [0002] Surface wettability of solid materials is a very important property. The surface of the lotus leaf in nature realizes self-cleaning and self-protection due to its superhydrophobicity. Affected by the micro-nano composite structure of the surface of the lotus leaf, many methods have been adopted to adjust the wettability of the surface of solid materials. Like the sol-gel method, or the surface roughening of low surface energy materials, or the use of die extrusion to achieve phase separation of certain polymer...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08F2/22C08F212/08C08F220/10C08F218/08C08F2/26A61K8/81A61Q17/04
Inventor 王京霞宋延林江雷
Owner INST OF CHEM CHINESE ACAD OF SCI
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